VS980 LG G2 Completely Bricked! - G2 General

I know this thread has been posted millions of times, nothing at all works for me
Ok so I rooted my phone yesterday and thought I'd try Cyanogen Mod. After following every step in the Wiki, it had me install AutoRec and reboot, and now I'm stuck at:
Fastboot mode started
udc_start()
- reset -
- portchange -
fastboot: processing commands
When trying LF Flash Tool, it says phone is disconnected, I can't go into download mode, or do anything like that, only fastboot mode. When trying to go into download mode it works for a second before going into fastboot again. Hardware factory reset does not work either.
I've tried MANY threads/videos/etc (B2CApPSetup; LG United; some Fastboot tool; LG FlashTool; SO many more) and none of the programs work. I really need my phone and I desperately need any help. I have ZERO clue where to go from here. I thought about just trying to install CM again through whatever means possible but I can't even seem to be able to reset the phone to stock.

If factory reset isn't taking you to the recovery, it sounds autorec didn't work? I don't know, I don't have a VS980, but in your position I'd make sure the LG driver package was installed, make sure Windows is actually using the fastboot driver when connected in the device manager (Win 8.1 here, I've always had to manually tell it what driver to use), then I'd fastboot flash a twrp img, which would hopefully allow factory reset to take me to recovery. If that works, you'll probably have to adb push a Rom over.
Hopefully someone with a little more insight can help you further / better.

It's not really bricked at all. You most probably downloaded AutoRec for an other variant, next time read more carefully.
You'll need to flash the stock aboot, boot and laf images back using fastboot.
I know you said fastboot doesn't work, but it has to work. Try updating your drivers, use a different PC or something. You can download said image files from here, BUT I'm not familiar with your variant, so I have no idea which version you should download, it would be the best to use the ones you've just overwritten with AutoRec; if they are on the linked server, good for you, if they aren't, you might better extract them yourself from the kdz.

I followed some link to tell me what kdz to get, its' called VS98026A_00.kdz. How do I go from here to just reset my phone completely?

This is pretty much my problem:
Reddit r/lgg2/comments/2b7tob/installed_autorec_and_stuck_at_the_boot/

I'm amazed I got this far. I really need all the little details I can get lol.
gyazo.com /56a5a1ff9b071f8505b883c753dcf6d9

Ok so I tried LGFlashTool once more after doing fastboot with LAF.img and says it can't find phone.

Sounds like you should update your LG drivers.
If you can't get download mode to work, flash these images the same way you flashed that laf.img one. I think you'll be able to boot to system just fine. I included a laf.img in the rar as well, you can skip that one I guess.

Hid3rs said:
Sounds like you should update your LG drivers.
If you can't get download mode to work, flash these images the same way you flashed that laf.img one. I think you'll be able to boot to system just fine. I included a laf.img in the rar as well, you can skip that one I guess.
Click to expand...
Click to collapse
I flashed boot.img then restarted and it was stuck at LG icon. I restarted it and got it into firmware update and it seems to be frozen at 0%. Was I supposed to do aboot before fastboot reboot? Thank you so much for your help btw, I have no idea what I'm doing really.

Sounds like you put a different version of a bootstack your vs980. I've seen too many people screw their phones using autorec. If you can't get it fixed by doing a kdz restore and are still under warranty, call vzw and get a warranty replacement.
Then use my Freedom Tools made only for the VS980 to get a custom recovery on your phone to flash roms.
http://forum.xda-developers.com/showthread.php?t=2713954

I fixed it! Thanks so much!

MicroMod777 said:
Sounds like you put a different version of a bootstack your vs980. I've seen too many people screw their phones using autorec. If you can't get it fixed by doing a kdz restore and are still under warranty, call vzw and get a warranty replacement.
Then use my Freedom Tools made only for the VS980 to get a custom recovery on your phone to flash roms.
http://forum.xda-developers.com/showthread.php?t=2713954
Click to expand...
Click to collapse
nice work。thank you

Related

[SOLVED] [Q] Bricked LG L9 P769, locked BL, JB, Rooted, LG Bootloop

Hey all,
I have a CWM backup of my current rom and have backups of apps and data but am stuck at a bootloop.
As I have read countless articles, it seems my error is because I have a locked bootloader(not actually sure). Though, I only tried to flash
clockcycle's wiped v20d cwm backup file. It failed part way saying it couldn't write to /system.
Since then, I haven't been able to fully enter CWM. just see the red triangle with the droid guy on his back.
I have read Cmahendra's unbricking guide but it doesn't work as I have installed JB and even the tips to unplug, wait 10s and reopen the program to flash again it still won't work. Still stops at 15% saying error connecting to the phone.
There is a similar thread which had this exact problem which said to
use the online method to recover your phone since I had already installed JB. I edited the hosts file to remove the fake offline server and opened up the b2CAppsetup.exe, clicked on customer support,
entered my model LGP769BK and my S/N and it began to start the process and 'analyze' then crashed and said "updating is not possible any longer due to a fatal error while the LG mobile phone software Update"
I've tried to search this out myself and not waste any space but I'm at loss here. If anyone has any help, it would be much appreciated
as I don't have a phone while this is not working.
I've tried all the ways to to hard reset, master reset and still I get the droid guy on his back. I can get to S/w mode like all the other posts say to do but none of those fixes seem to work for me. Am I missing something?
Do I have any options here? I have kind of read that I should just unlock the bootloader but I don't think that applies in my case as I can't turn on my phone fully.
edit: for the online method(LG support tool), it basically cancels when it goes to the 'downloading' phase --> this is what I've seen as most of the answers but doesn't work
Upon further reading,
many seemed to need to replace their u-boot and x-loader
I did so and installed fastboot using Lelus' script here:
http://forum.xda-developers.com/showpost.php?p=41768774&postcount=1
I used option 6 which allowed me to flash the u-boot and x-loader from p760(works with my 769 and others as it says in the options) for JB
I'm not sure if I needed this as I don't have an unlocked bootloader.
I'm not sure of commands in fastboot but I ran
fastboot devices and it showed something
I also ran: fastboot flash recovery recovery.img
and I put one of my cwm backups in the "yours" folder
After I activate fastboot, it brings me to the C:\fastboot\yours folder
I assume this is for me to put my intended files in but I'm unsure if I should use my cwm backup or something else?
After it flashed the recovery img, I sent a fastboot reboot command
but it still went back to the droid lying down with a red triangle.
As some of you may see, I'm not too great with this but I feel like I'm close. Does anybody have an idea of what I should be doing?
should I flash an update.zip?
I don't know many commands but hopefully this gets me going in the right direction.
PLEASE HELP ME!!!!
I guess your cmw restore formatted your system but couldnt load the new system
the recovery you run with a locked bootloader uses a technique called 2nd init which i think is somewhere stored in the system partition. so when the recovery formatted the system, it lost itself too.
I've had a similar problem. the way out would be booting into the SW upgrade mode--switch off the device, remove the battery, remove the usb cable. press the volume up button and connect the phone to the computer. wait for a couple of seconds and then insert the battery.
you should be in the SW upgrade mode
now use the B2C client. if it gives an option to upgrade, use that otherwise, go to the customer support menu and press recovery phone
I have already done earlier. It may have gotten lost in my frenzy of information. I have put the phone into software mode, as you said, and it won't work either; There's no option to click upgrade because it's JB(V20D) and when I click recovery phone and enter my imei, LG mobile support tool(B2capp.exe) analyzes and then has a 'fatal error'
Since I flashed the new u-boot and x-loader my screens are all backwards/mirrored. Maybe the tool flashed an unlocked u-boot and x-loader if that's possible.
Is a recovery possible by fastboot?
I have a clean and full copy of my cwm recovery as well as apps and data backed up, I just need to get this phone in working order
shockah486 said:
I have already done earlier. It may have gotten lost in my frenzy of information. I have put the phone into software mode, as you said, and it won't work either; There's no option to click upgrade because it's JB(V20D) and when I click recovery phone and enter my imei, LG mobile support tool(B2capp.exe) analyzes and then has a 'fatal error'
Since I flashed the new u-boot and x-loader my screens are all backwards/mirrored. Maybe the tool flashed an unlocked u-boot and x-loader if that's possible.
Is a recovery possible by fastboot?
I have a clean and full copy of my cwm recovery as well as apps and data backed up, I just need to get this phone in working order
Click to expand...
Click to collapse
If you fastboot flash the u-boot and x-loader from p769(ICS) it should go thru with the offline flash detailed in cmahendras guide.
http://forum.xda-developers.com/showthread.php?t=2085344
Use the KDZ_FW_UPD.zip from this thread
Or try this
Remove all of the stuff you have downloaded for this. Download the original B2C client from LG's site and use that
Tablechair said:
If you fastboot flash the u-boot and x-loader from p769(ICS) it should go thru with the offline flash detailed in cmahendras guide.
Click to expand...
Click to collapse
Thanks.I'll try this. if I have the ICS bootloader, does that mean I'll have to flash the V10G kdz? or can i do the v20d kdz
dhruvbatra205 said:
http://forum.xda-developers.com/showthread.php?t=2085344
Use the KDZ_FW_UPD.zip from this thread
Or try this
Remove all of the stuff you have downloaded for this. Download the original B2C client from LG's site and use that
Click to expand...
Click to collapse
I have the updated kdz fw upd .zip from the unbrick and root thread as well as downloaded a new, official B2C client but they all still hang at the download part during phone recovery.
Tablechair, that did the trick.
Is this because the tool we use to flash for the offline method doesn't recognize the x and u-boot loaderse of JB?
After I installed the ICS boot loaders, my software upgrade mode wasn't mirrored anymore.
I did as tablechair and flashed the V20D.
Does anyone understand why this problem happened in the firstplace? Maybe I didn't get a full copy of clockcycle's backup cwm
or should I have not flashed his recovery in the first place since I didn't have an unlocked bootloader?
Again thank you for all your help and if anyone can provide answers to my other supplemental questions, that'd be great.
Off to root and probably unlock bootloader to be sure.
edit: I can't find the thanks button. but thank you very much tablechair. much appreciated. Hope this can help someone else
p.s. also big thanks to those who made the fastboot program for p769(Artas182x and sguerrini97). really an invaluable tool as I now know.
shockah486 said:
Tablechair, that did the trick.
Is this because the tool we use to flash for the offline method doesn't recognize the x and u-boot loaderse of JB?
After I installed the ICS boot loaders, my software upgrade mode wasn't mirrored anymore.
I did as tablechair and flashed the V20D.
Does anyone understand why this problem happened in the firstplace? Maybe I didn't get a full copy of clockcycle's backup cwm
or should I have not flashed his recovery in the first place since I didn't have an unlocked bootloader?
Again thank you for all your help and if anyone can provide answers to my other supplemental questions, that'd be great.
Off to root and probably unlock bootloader to be sure.
edit: I can't find the thanks button. but thank you very much tablechair. much appreciated. Hope this can help someone else
p.s. also big thanks to those who made the fastboot program for p769(Artas182x and sguerrini97). really an invaluable tool as I now know.
Click to expand...
Click to collapse
Things don't always go according to plan, maybe his Clockworkmod backup was made from the touch version and he didn't have artas182x second init recovery installed. So when the cwm failed the first time, did you try to restore your cwm backup?
kuma82 said:
Things don't always go according to plan, maybe his Clockworkmod backup was made from the touch version and he didn't have artas182x second init recovery installed. So when the cwm failed the first time, did you try to restore your cwm backup?
Click to expand...
Click to collapse
Not yet. having problems flashing a kdz again. I've tried the 2 different software modes, as well as setting emerg and diag but still getting stuck at 15% again.
Do i have to replace my uboot and xloader with the ICS ones every time I want to use the offline flash method?
edit: yup, after replacing with ICS loaders again i'm able to flash using software upgrade. will update on whether I can restore cwm
kuma82 said:
Things don't always go according to plan, maybe his Clockworkmod backup was made from the touch version and he didn't have artas182x second init recovery installed. So when the cwm failed the first time, did you try to restore your cwm backup?
Click to expand...
Click to collapse
I realized I misread your question. When I flashed before the incident, it failed to write to system and I didn't restore my other folder. I rebooted and it was all missed up. Anyway, now that I've got everything back and now with an unlocked bootloader, i was able to recover my old image. However, data isn't working so I have to find the radio to flash as I recall reading in other threads.
Can someone explain in laymen terms why this is? recap, i was on unlocked bl rooted jb and I flashed my old cwm backup when I was rooted but had a locked bl. My apps and messages were all there but the radio was different. I'd understand if I was going from ICS to JB but I was on JB both times. The only difference being a locked BL. It's got to be something about the Radio from p760 or V20B that didn't work on my earlier backup or something like that because the layout status bar is different with a "data" button and showing H instead of 4g(which are the same afaik).
Since, I restored to my backup from after my bootloader unlock and root so data is working showing 'H' with the different layout
Also, I had problems backing up and restoring until I noticed that it works better when I power off the phone and do the manual commands to enter recovery as opposed to using the app to send me to recovery(where I incurred /system backup errors).
My last question is which cwm recovery should I use? I currently have the one for a locked bootloader installed as per Artas182x's website. On that post he has a link for an unlocked bootloader recovery on the xda forums but that thread was updated to not working. Are there any disadvantages to me using a locked bootloader cwm recovery?
I don't think I have any option but to try it as I want to flash CM10.1 for p769. I also read that if your bootloader is unlocked, you can download the cwm from the googleplay. If this is true, can I just install over or should I uninstall the Artas182x locked bootloader one????
update: have to remove l9 recovery by deleting the appropriate system folders and then flash the appropriate .img through adb commands
Help.
shockah486 said:
I realized I misread your question. When I flashed before the incident, it failed to write to system and I didn't restore my other folder. I rebooted and it was all missed up. Anyway, now that I've got everything back and now with an unlocked bootloader, i was able to recover my old image. However, data isn't working so I have to find the radio to flash as I recall reading in other threads.
Can someone explain in laymen terms why this is? recap, i was on unlocked bl rooted jb and I flashed my old cwm backup when I was rooted but had a locked bl. My apps and messages were all there but the radio was different. I'd understand if I was going from ICS to JB but I was on JB both times. The only difference being a locked BL. It's got to be something about the Radio from p760 or V20B that didn't work on my earlier backup or something like that because the layout status bar is different with a "data" button and showing H instead of 4g(which are the same afaik).
Since, I restored to my backup from after my bootloader unlock and root so data is working showing 'H' with the different layout
Also, I had problems backing up and restoring until I noticed that it works better when I power off the phone and do the manual commands to enter recovery as opposed to using the app to send me to recovery(where I incurred /system backup errors).
My last question is which cwm recovery should I use? I currently have the one for a locked bootloader installed as per Artas182x's website. On that post he has a link for an unlocked bootloader recovery on the xda forums but that thread was updated to not working. Are there any disadvantages to me using a locked bootloader cwm recovery?
I don't think I have any option but to try it as I want to flash CM10.1 for p769. I also read that if your bootloader is unlocked, you can download the cwm from the googleplay. If this is true, can I just install over or should I uninstall the Artas182x locked bootloader one????
update: have to remove l9 recovery by deleting the appropriate system folders and then flash the appropriate .img through adb commands
Click to expand...
Click to collapse
Although I might be late, I have the same problem and the same phone and I really need help. I have a soft bricked phone lg optimus l9 and I had the same problems that you had exactly... Which is weird exept I don't have Clock Work Mod or anything ... If you get this I would really appreciate some help. Thanks
yup me too
I finally got software upgrade to work with my lg p769 that was security error cuz i still haven't unlocked the bootloader, if i knew what a good job lg and T-Mobile did in locking it i would have waited and got a g3 that my buddy rooted in like 5 min and unlocked the boot....
What worked for me is this LG FLASH TOOL 2014 THREAD ON XDA
http://forum.xda-developers.com/showthread.php?t=2797190
flashed both the 20H and 20D successfully i uninstalled everything lg in the control panel first though.
Hope this works for you cuz i was struggling on and off for a month to get this far lol
the 2014 tool ultimately worked for me too, once I fixed a couple things. I had rooted and forgotten to unlock, so it was at Security Error, and it would also disconnect at 15% .. in the 2014 tool, I had to install all the updates even though I'm in windows 7 or it would keep doing it. All good now.
I have been trying all these methods and I am still not able to get in the S/W upgrade mode. The only thing I am getting from the device is being able to put it fastboot mode (The inverted one). I really want to revive this phone
Thanks in advance for any help given
Liger878 said:
I have been trying all these methods and I am still not able to get in the S/W upgrade mode. The only thing I am getting from the device is being able to put it fastboot mode (The inverted one). I really want to revive this phone
Thanks in advance for any help given
Click to expand...
Click to collapse
Hey, it's been ages since I have done any of this but IIRC, if you can get into fastbood mode u can still get into software mode,
- turn phone into fastboot mode
- open the software upgrader thing as you normally do
- maybe switch emerg to diag or something like that
- this part is where it's slightly different than the normal way(same program but u select a different option than the default 1st option on
I think if yoiu look through the tutorials it does mention an alternative method for getting into software mode
in one instance in my past, i had to reflash the ICS boot drivers so the software installer would recognize that
the flashing of the ICS boot drivers is done through fastboot. Should be a post in my history where I asked a question regarding this.
Sorry for the chaos but maybe this will help you get in the right direction since I don't know any of your phone history and what you've done etc
best of luck mate
shockah486 said:
Hey, it's been ages since I have done any of this but IIRC, if you can get into fastbood mode u can still get into software mode,
- turn phone into fastboot mode
- open the software upgrader thing as you normally do
- maybe switch emerg to diag or something like that
- this part is where it's slightly different than the normal way(same program but u select a different option than the default 1st option on
I think if yoiu look through the tutorials it does mention an alternative method for getting into software mode
in one instance in my past, i had to reflash the ICS boot drivers so the software installer would recognize that
the flashing of the ICS boot drivers is done through fastboot. Should be a post in my history where I asked a question regarding this.
Sorry for the chaos but maybe this will help you get in the right direction since I don't know any of your phone history and what you've done etc
best of luck mate
Click to expand...
Click to collapse
Thanks, Never tried switching to DIAG before but I will try it and let you know what is the outcome.
Hopefully you find the thread that states the exact steps bc that is off the top of my head and over a year ago by memory . GL bud
Liger878 said:
Thanks, Never tried switching to DIAG before but I will try it and let you know what is the outcome.
Click to expand...
Click to collapse
Hey, I have been trying it with the fastboot but it keeps timing out and not allowing me to finish. One thing I should let you know is that, ever since I had put the device in fastboot, I am not able to get back the S/W upgrade mode. Dont know if that will help in seeing what my problem is or if you want me to explain everything from the beginning again, I am more than happy to.
Have you followed the steps that I linked to in the first 3 posts of this thread?
Follow the steps to flash the ICS bootloaders in fastboot and then you can do the fastboot trick for getting the software to recognize your device.
Right now your phone has the JB boot loader on it and is thus not recognized by the software.
recap:
step 1: flash the ICS bootloaders in fastboot (look at the linked thread in post 2)
step 2: use the software in emerg or diag mode but sitll follow the same steps as the tutorial. I think my earlier posts should explain precisely.
if you dont flash the ICS bootloaders, it won't be recognized by the KDZ installer

Dump contents of entire device (partitions), then convert to KDZ/TOT firmware image?

I have the LG v10 from T-Mobile. I bought the phone a few weeks ago and it had Marshmallow installed. Somehow I managed to install TWRP/SuperSU, but then had issues and flashed the official/stock MM image with LGUP. Afterwards I discovered that MM for this device is not currently rootable, and TWRP cant be flashed via fastboot because MM blocks it. So I returned the device to T-Mo store, lied and said it force-upgrade to MM and had began freezing up. They did an in-store trade for an identical model that had 5.1.1 Lollipop.
The device is currently still in factory condition in every way, with the exceptions that I unlocked the bootloader via fastboot and installed TWRP. Nothing else is modified yet and no custom ROMs have been flashed.
I recently became aware that there is no stock LP image for the T-Mo v10, only MM images are available. After all the issues I've had, I'm now paranoid and want to have a complete dump of the phone's entire contents (partitions, bootloader, system, etc) that is in KDZ or TOT format, and can be reflashed with the standard tools available. Since there is nothing official then I would have to do this myself. This would be useful in the event that I run into lots of issues and need to do a emergency stock restore.
I found a thread by XDA user @tungkick, in which he created a modified dump of the device while it was running LP. However, because it was unofficial and he didn't disclose this upfront, his thread was shut down. His file bricked multiple MM users. I assume it would work if one was still on LP and hadn't upgraded to MM. Not to mention that I cant seem to find his file anywhere. So I figure the safest way is to do this myself. I would be willing to make this file available to the community when finished, with full disclosure that it is unofficial. But the problem is, I don't know how.
I know that the Linux dd command can be used to dump images of various things, and I have read that this can be done on PC by connecting to the device via ADB or fastboot. This would hopefully result in an image file that contained the contents of all the device's partitions.
But another issue would be converting it to KDZ or TOT. And it would have to be done in such a way that it would be flashable with the standard tools.
Can someone please give me a technical understanding of the tools and knowledge I would need to undertake this? Would it be too complicated for someone like myself that has little Android/Linux experience (but is generally competent with computers/technology)?
Thanks for any advice!
Noone can help me with this?
To the mods/admins: I think maybe I posted this in an area where it is unlikely to get any useful answers. Can someone move the thread to the Help& Troubleshooting area of the general LG v10 forum (not here in the T-Mobile subforum)? Thanks!
I think it's just that if that could. have been done someone would have done it already. Even tungkick didn't make one for tmobile for some reason. I think because he made his root injected files from official lg files and lg has not released a kdz or tot for tmobile LP.
Just my observation... I could be wrong.
Sent from my pretty nifty brand new LG V10
@ planetbeen: I don't see why it wouldn't be possible. Linux's dd program can dump almost any connected device that it can see. But then it needs to be converted into a standard TOT/KDZ that can be flashed with any standard software. Which is why I want to create an unofficial backup of the entire phone before modifying it further, so I can do an emergency restore if necessary. I just need the right instructions from people who have the technical expertise.
I had trouble with my old LG v10, I had used LG's LGUP program to flash it to Marshmallow from my PC, only to realize that it couldn't be rooted or have a custom recovery. And I also discovered that I couldn't downgrade to Lollipop. So I returned the phone to the store and exchanged it for an identical model that still had LP. I just told them it had auto-upgraded to MM and started crashing. They exchanged, no questions. Before this I had various issues, like GPS crashing randomly when turning it on, Bluetooth also doing the same thing, and the Settings app also crashed sometimes when accessing the Security menu. I had flashed multiple ROMs, but stock-based and CM/AOSP-based, but kept running into issues, oftentimes the same ones. So I figured that something in the phone had become corrupt and figured that flashing stock MM would fix everything. Big mistake. I'll never let this phone upgrade again until MM is solidly hacked, which from what I've read may be a long time away. I paid enough for this phone and I really value hackability. I'm not the average Joe that just uses my phone for Facebook, etc. To me, if a phone cant be hacked, then buying/owning it is a waste of time/money. Same thing with every computer/electronics device I've ever owned.
Thanks again!
It looks like I'm going to have problems getting answers from knowledgable people, so instead of waiting, I'm going to take a little initiative and at least try to do the dump with dd. I found a post by @tungkick that says to enable USB debugging and make a backup file via dd with the 'adb shell' and 'su' commands. Is the following syntax correct?
dd if=/dev/block/mmcblk0 of=/sdcard/H901.bin bs=1024 count=6291456
Do I run these commands from a PC via command line while connected via USB? Or directly on the device in a terminal emulator? Or do I need to run the command while in fastboot/bootloader mode, while Android is powered down?
Thanks again!
Stock use tool extract kdz then choose file dz (use lgup)
remember can not flash if phone update 6.0
Never downgrade because phone brick now.
version 5.1.1
https://drive.google.com/file/d/0B_Hol5T47S-bQkJVemgzMDV0Nzg/view?usp=sharing
@ tungkick: Thanks for the info. I had used the dd command to dump my phone to external SD before, but the file was 6GB! I was unable to use Tool KDZ Extract to extract the *.dz from the *.kdz file you provided. I was able to flash your KDZ with LGUP, but it boots me into TWRP recovery near the end.
Do you mind if I publicly distribute a mirror copy of your file on my Dropbox, so that it will be available to others that need the stock LP firmware for this device?
Thanks again!
I just wanted to say that flashing your KDZ has possibly screwed up my device permanently. Your image has TWRP, not the stock recovery, and is pre-rooted with SuperSU. Normally this would be good but...............
Near the end of LGUP, the device boots into TWRP. System and MicroSD are mounted, but nothing else (data, cache, dalvik, etc). I was able to obtain a stock recovery *.img, then copied it over to my MicroSD while in recovery. Then I flashed it, booted the phone into stock recovery, and performed a factory reset. Afterwards I booted into system, and all looked good, until it got to the "Checking connection" screen, then a lot of apps started force-closing repeatedly. Because of this I can't get to the Home screen, and no amount of factory reset is working. It just keeps happening over and over again.
How to get out of this mess, anyone?
Help please!!!
Still looking for a solution and would really appreciate any help!
My theory is that the /cache and /data partitions somehow got corrupted during the flash. So I tried booting into FastBoot mode and issueing the commands:
fastboot erase cache
fastboot format cache
fastboot erase userdata
fastboot format userdata
It just says something something along the lines of "remote: cant format/erase in an unlocked state". If I relock the bootloader, it says that it cant erase/format in a locked state.
TWRP still cant read those partitions (they won't mount and cant be mounted), and the apps still start force-closing almost immediately after rebooting into system, before I can complete the setup, preventing me from getting to the home screen.
@ tungkick: Is there any possibility we can arrange a TeamViewer meeting to fix this?
Thanks!

VS996 Lost Root/Unlocked Bootloader Screen and Download Mode

Just bought a VS996 on Ebay and followed the Frankenstein steps to get it to US998 and then WTF unlocked the bootloader, installed TWRP, removed encryption, etc, and finally the Verizon 20i ROM designed for TWRP/root.
All was well for a brief time. Then I started debloating the ROM and installed a Magisk module -- Terminal Debloater or something -- figured it was harmless.
Rebooted and I no longer have the Bootloader warning screen and the Verizon white screen with animating dots comes up but never moves past that. I waited at least 15 minutes and then hard reset.
Fortunately I could get into TWRP still so I wiped and flashed the ROM 20i ROM and Magisk again which will boot just fine.
Unfortunately, Download Mode (which worked previously via the Volume Up key for the Frankenstein method) no longer works. I see the mini Download mode icon and then the phone reboots to the LG V30 screen and then the OS. Tried going to Download Mode via ADB and it won't stay then either. Somehow my LAF partition got corrupted?
So TWRP works and so does the 20i ROM rooted. Just no Download Mode. Also "adb reboot bootloader" doesn't work either - just goes to the OS.
Is there anything I can do to bring back Download Mode?
Thanks,
Drew
Once you're on vs996, you don't get the bootloader warning anymore.
Extract the TWRP flashable package, get the laf image and write it to your laf partition with dd. You can also flash it from fastboot
crumbling9999 said:
Extract the TWRP flashable package, get the laf image and write it to your laf partition with dd. You can also flash it from fastboot
Click to expand...
Click to collapse
So in vs99620i.zip found: https://androidfilehost.com/?w=files&flid=287569, I see in the bootloader folder there is a laf.img. I've recently installed the whole ZIP again so shouldn't that have fixed the Download Mode? Or could it be that this ZIP is the reason for the messed up Download Mode in the first place?
Anyway, assuming there's nothing wrong with the laf.img, what are the steps for writing to the laf partition with dd?
I'd ask about the fastboot steps, but I'm not sure I can get to it... As mentioned in my OP, "adb reboot bootloader" is accepted via ADB, but the phone reboots and just goes past the bootloader to the OS. Not sure what is wrong with my bootloader either... Or is it because I'm on VS996 and no longer US998 that I don't have fastboot?
Thank you!
You are correct. Since you flashed back to VS996, you no longer have fastboot.
As for laf, you can use any laf image. Go to the H932 root thread and there is a TWRP flashable laf zip in the first post.
If you want fastboot back, you will need to flash xbl and abl from the US998. Let me know, and I will make you a zip for that as well.
-- Brian
runningnak3d said:
You are correct. Since you flashed back to VS996, you no longer have fastboot.
As for laf, you can use any laf image. Go to the H932 root thread and there is a TWRP flashable laf zip in the first post.
If you want fastboot back, you will need to flash xbl and abl from the US998. Let me know, and I will make you a zip for that as well.
-- Brian
Click to expand...
Click to collapse
So helpful, thank you Brian! Yes I would be most grateful if you could make a fastboot zip for me/others!
There is no issue flashing an H932 laf image/zip on a VS996? I know H932 isn't like other N. American V30s in terms of the WTF method, so just want to be sure I don't mess things up. Maybe you/I could make a US998 laf image/zip?
Thank you again!
Nope, there is no issue flashing any models laf. The laf in that H932 thread isn't even an H932 laf, it is an H930 or H933 don't remember.
Laf is laf is laf
I will make you a zip for fastboot as soon as I can.
-- Brian
runningnak3d said:
Nope, there is no issue flashing any models laf. The laf in that H932 thread isn't even an H932 laf, it is an H930 or H933 don't remember.
Laf is laf is laf
I will make you a zip for fastboot as soon as I can.
-- Brian
Click to expand...
Click to collapse
Flashed the h932_laf.zip in TWRP and think it was successful. However, I still cannot get into Download Mode -- it just reboots and goes to the OS. Guess no more LG UP fail-safe for me? Or is there anything else I can try?
Thanks!
-Drew
drewcu said:
Flashed the h932_laf.zip in TWRP and think it was successful. However, I still cannot get into Download Mode -- it just reboots and goes to the OS. Guess no more LG UP fail-safe for me? Or is there anything else I can try?
Thanks!
-Drew
Click to expand...
Click to collapse
What steps are you taking to go into Download mode? I'm not doubting it's possibly corrupted, just want to make sure you have tried both methods of getting into download mode. LGUP and manually?
Apologies if you have tried this...
Manually with the hardware buttons:
Press and hold the Volume Up key on your LG V30.
While still holding this button connect your phone to the USB cord on your computer.
The download mode should now be displayed on your device.
You can release the Volume Up key and resume the update / downgrade operation.
Click to expand...
Click to collapse
Actually, without fastboot, the vol up + USB is the only way to get to download mode.
Just an FYI, the phone has to be powered off.
So, power off the phone, hold vol up, plug in the USB cable.
There is no reason you wouldn't have download mode if you have a valid laf partition.
-- Brian
ChazzMatt said:
What steps are you taking to go into Download mode? I'm not doubting it's possibly corrupted, just want to make sure you have tried both methods of getting into download mode. LGUP and manually?
Apologies if you have tried this...
Manually with the hardware buttons:
Click to expand...
Click to collapse
No worries, but yes I have tried that. I get the Download Mode tiny icon in the center of the screen and I keep holding Vol Up and it then reboots back to the same tiny icon over and over. I eventually release the Vol Up and it just goes to the OS. But it worked perfectly when I got the phone Friday and tried the Frankenstein LG UP method, etc.
I have also tried rebooting into Download Mode in ADB via "adb reboot bootloader" and also using a root-only Power Menu app in the OS but both just reboot and go right to the OS.
My hunch is it somehow got corrupted when I:
1) Used Titanium Backup to uninstall some system apps like Music, Youtube, Photos, etc and the white Verizon loading screen never let me into the OS and I had to hard reset.
2) Installed vs99620j.zip by John Fawkes which won't boot past the LG V30 screen. This non-booting issue may more have to do with the 20J KDZ than what John did, and no one else has complained about a loss of Download Mode in that thread when I asked the question there.
3) Installed a Terminal Debloater module in Magisk previously. Never actually ran it though, but I installed it as I was debloating via Titanium Backup and when I rebooted, the OS would never load.
I have subsequently flashed the 20i VZ zip with a laf.img and the H932 laf img ZIP which should each have fixed the Download Mode but neither has.
Could there be something else other than the LAF partition which causes my phone to not enter Download Mode?
EDIT: Noticed that my computer's LGUP sees my phone just fine when the Verizon 20i ROM is loaded -- shows up as on COM14 in STANDBY. Download Mode, again, is another story! (And no I don't have LGUP loaded before doing the Vol Up method normally. Tried it this time though just out of curiosity and nothing showed up in LGUP.)
drewcu said:
My hunch is it somehow got corrupted when I:
1) Used Titanium Backup to uninstall some system apps like Music, Youtube, Photos, etc and the white Verizon loading screen never let me into the OS and I had to hard reset.
2) Installed vs99620j.zip by John Fawkes which won't boot past the LG V30 screen. This non-booting issue may more have to do with the 20J KDZ than what John did, and no one else has complained about a loss of Download Mode in that thread when I asked the question there.
3) Installed a Terminal Debloater module in Magisk previously. Never actually ran it though, but I installed it as I was debloating via Titanium Backup and when I rebooted, the OS would never load.
Click to expand...
Click to collapse
Sounds a little bit like you were trying to do too much at one time. I understand the impatience.
Also, others have reported the vs99620j.zip may not quite work right. The dev is investigating issues.
Last, be very careful about debloating where you are permanently removing stuff. With this phone a lot of stuff is connected in ways LG knows and we don't. Personally, I prefer FREEZING in Titanium Backup rather than uninstalling. (However I know Verizon does shove a lot of bloatware down your throat, while I have a US998.)
First, there's system space and user space. Uninstalling "system" apps do not gain you any user space. It may make people "feel better", but it has no advantage whatsoever over just freezing. With freezing, out of sight out of mind, and you won't cause lag because the roots are ripped out and the phone has to pause while searching for something it can't find. (I'm not talking about Verizon branded bloatware, but other stuff.)
Second, if you find you DO need something you froze, it's then simple to unfreeze. There were people who messed up their AOD, their GPS, their Google Pay, their microSD card storage by debloating willy nilly from some alleged "comprehensive" someone posted in this forum of ALL the stuff that could be debloated. Just because you can remove it doesn't mean you should. There was a lot items on that list you should never even touch, unless you are trying to turn your modern smartphone into a simple flip phone.
ChazzMatt said:
Sounds a little bit like you were trying to do too much at one time. I understand the impatience.
Also, others have reported the vs99620j.zip may not quite work right. The dev is investigating issues.
Last, be very careful about debloating where you are permanently removing stuff. With this phone a lot of stuff is connected in ways LG knows and we don't. Personally, I prefer FREEZING in Titanium Backup rather than uninstalling. (However I know Verizon does shove a lot of bloatware down your throat, while I have a US998.)
First, there's system space and user space. Uninstalling "system" apps do not gain you any user space. It may make people "feel better", but it has no advantage whatsoever over just freezing. With freezing, out of sight out of mind, and you won't cause lag because the roots are ripped out and the phone has to pause while searching for something it can't find. (I'm not talking about Verizon branded bloatware, but other stuff.)
Second, if you find you DO need something you froze, it's then simple to unfreeze. There were people who messed up their AOD, their Google Pay, their microSD card storage by debloating willy nilly from some stupid list "comprehensive" list someone posted in this forum of ALL the stuff that could be debloated. There's lots in that list you should never even touch.
Click to expand...
Click to collapse
Yeah, you're right about Freezing as that's what I did after having the Uninstall issues. And yes, you are right about it not recouping user space either, so I am fine just Freezing.
Regardless, not sure why Uninstalling system apps would mess up Download mode; if anything I could see the ROM not loading but that's about it.
Any thoughts on restoring Download Mode in some other way? It's not critical for my phone to work right now, but I can imagine a situation where somehow TWRP gets overwritten somehow and the stock recovery is practically useless. Thankfully I have TWRP and a rooted VZ ROM for now, but it'd be nice to have the insurance in case bad anything happens!
Thanks,
Drew
drewcu said:
I have also tried rebooting into Download Mode in ADB via "adb reboot bootloader" and also using a root-only Power Menu app in the OS but both just reboot and go right to the OS.
Click to expand...
Click to collapse
You won't be able to ADB reboot bootloader while on Verizon firmware. However, if you flashed US998 TWRP flashable zip (converting back to US998), you would again have fastboot flash commands, etc. That might be worth trying, then later you could always flash back to Verizon TWRP-flashable zip.
drewcu said:
Could there be something else other than the LAF partition which causes my phone to not enter Download Mode?
EDIT: Noticed that my computer's LGUP sees my phone just fine when the Verizon 20i ROM is loaded -- shows up as on COM14 in STANDBY. Download Mode, again, is another story! (And no I don't have LGUP loaded before doing the Vol Up method normally. Tried it this time though just out of curiosity and nothing showed up in LGUP.)
Click to expand...
Click to collapse
It does seem somehow your Download mode has been corrupted. The only things I know of (and I'm not a dev) about how Download mode disappears is either corruption or you flash something else over it. Some T-mobile H932 users flash an extra copy of TWRP over LAFF and they lose Download mode -- but they are doing that on purpose for reasons specific to the H932.
runningnak3d said:
Nope, there is no issue flashing any models laf. The laf in that H932 thread isn't even an H932 laf, it is an H930 or H933 don't remember.
Laf is laf is laf
I will make you a zip for fastboot as soon as I can.
-- Brian
Click to expand...
Click to collapse
Yeah I'd appreciate the fastboot zip when you get a chance, thanks!
Any other ideas for restoring Download Mode or is that pretty much shot, you think?
So thanks to the H932 guide and the following, I now have a 2nd working TWRP in place of my Download Mode/LAF partition. When I hold the Vol Up and plug in a USB cable, I first see the tiny Download Mode image as before, but then the 2nd TWRP loads up! Not sure why when I restored a working laf img via TWRP before, Download Mode still wouldn't work, but this will work via ADB. Guess TWRP as a fail-safe in many cases is better than Download Mode, so I'll take it! Perhaps if I flashed the laf img via ADB like this instead of TWRP, it would restore Download Mode, but I'll live with TWRP there for now.
Still would love to have fastboot on VS996 as Brian described on Page 1, if that's even possible.
If you would like a second copy of TWRP on your laf partition (I *highly* recommend this), follow these instructions:
Download the version of TWRP that you want to install onto laf.
Rename it to twrp.img
Boot your phone to TWRP, and connect it to your PC
Open a command prompt where you downloaded TWRP and type:
adb push twrp.img /sdcard/
adb shell dd if=/sdcard/twrp.img of=/dev/block/bootdevice/by-name/laf
With the phone off, hold vol up and plug in the USB cable and you should be greeted by your second copy of TWRP.
Click to expand...
Click to collapse
drewcu said:
So thanks to the H932 guide and the following, I now have a 2nd working TWRP in place of my Download Mode/LAF partition. When I hold the Vol Up and plug in a USB cable, I first see the tiny Download Mode image as before, but then the 2nd TWRP loads up! Not sure why when I restored a working laf img via TWRP before, Download Mode still wouldn't work, but this will work via ADB. Guess TWRP as a fail-safe in many cases is better than Download Mode, so I'll take it! Perhaps if I flashed the laf img via ADB like this instead of TWRP, it would restore Download Mode, but I'll live with TWRP there for now.
Still would love to have fastboot on VS996 as Brian described on Page 1, if that's even possible.
Click to expand...
Click to collapse
If you flashed to US998 TWRP-flashable zip you should have ADB/fastboot flash commands back.
ChazzMatt said:
If you flashed to US998 TWRP-flashable zip you should have ADB/fastboot flash commands back.
Click to expand...
Click to collapse
I have Verizon service so would I have any issues with US998 in terms of MMS or Voicemails or anything? I figured I'd be assured of no MMS issues (which I thought I read could occur with Verizon on US998) by going with a VS996 rooted ROM. Plus the VS996 ROM comes with the Verizon Voicemail app and maybe the US998 ROM's Voicemail app isn't compatible? The one thing I know I'd lose with US998 and Verizon is WiFi Calling... Believe that has to be done with the VS996 ROM, right?
I'm not sure I care that much about fastboot now that I have 2 TWRP partitions on my phone, so maybe I just stick with VS996 on Verizon.
drewcu said:
I have Verizon service so would I have any issues with US998 in terms of MMS or Voicemails or anything? I figured I'd be assured of no MMS issues (which I thought I read could occur with Verizon on US998) by going with a VS996 rooted ROM. Plus the VS996 ROM comes with the Verizon Voicemail app and maybe the US998 ROM's Voicemail app isn't compatible? The one thing I know I'd lose with US998 and Verizon is WiFi Calling... Believe that has to be done with the VS996 ROM, right?
I'm not sure I care that much about fastboot now that I have 2 TWRP partitions on my phone, so maybe I just stick with VS996 on Verizon.
Click to expand...
Click to collapse
It would just be temporary to see if you can get download mode back.
Then you can go back to Verizon TWRP-flashable zip.
Sent via open market LG US998 V30/V30+

Cant boot to download mode. just goes straight to fastboot and no adb detection.

pressing the vol - before plugging in, it would show "download mode" for a spit second and go straight to fastboot mode. i cant do anything in fastboot mode since i cant get it to show on "adb devices".
i was just starting to root this V300L30p and managed to flash the h930 to unlock the bootloader. after flashing the unlock bin i waited and held the vol - button as said in the guide but the phone never boot up. i waited 30 mins or so. i tried to get to download mode and reflashed the h930 rom using dual mode LGUP partition dl but it didnt work and i just got "cant open port" i tried refurbish and it also didnt work. i tried master reset and it didnt work in trying to reflash. after a while i just couldnt access the download mode and it just goes too fast to fastboot mode.
electrical potato said:
pressing the vol - before plugging in, it would show "download mode" for a spit second and go straight to fastboot mode. i cant do anything in fastboot mode since i cant get it to show on "adb devices".
i was just starting to root this V300L30p and managed to flash the h930 to unlock the bootloader. after flashing the unlock bin i waited and held the vol - button as said in the guide but the phone never boot up. i waited 30 mins or so. i tried to get to download mode and reflashed the h930 rom using dual mode LGUP partition dl but it didnt work and i just got "cant open port" i tried refurbish and it also didnt work. i tried master reset and it didnt work in trying to reflash. after a while i just couldnt access the download mode and it just goes too fast to fastboot mode.
Click to expand...
Click to collapse
In fastboot mode, is your Bootloader unlocked?
Can you run the getvar command?
What H930 KDZ did you flash? The right one?
ChazzMatt said:
In fastboot mode, is your Bootloader unlocked?
Can you run the getvar command?
What H930 KDZ did you flash? The right one?
Click to expand...
Click to collapse
just ran get var all command. it says "unlocked_count 1" and "unlocked: yes"
i used H93020d_00_OPEN_EU_OP_0326.kdz when it was available in the first post.
edit: also ran fastboot devices, it showed : ???????????? fastboot
edit 2: ran fastboot devices again and phone turned off. did it again and got : LGH930d794576b fastboot
electrical potato said:
just ran get var all command. it says "unlocked_count 1" and "unlocked: yes"
i used H93020d_00_OPEN_EU_OP_0326.kdz when it was available in the first post.
edit: also ran fastboot devices, it showed : ???????????? fastboot
Click to expand...
Click to collapse
OK if your Bootloader is unlocked and you have fastboot, then you don't need Download mode right now.
Install TWRP, root. Follow Section 6 of the WTF instructions.
Later after you restore modem you can worry about Download mode.
ChazzMatt said:
OK then you don't need Download mode right now.
Install TWRP, root. Follow Section 6 of the WTF instructions.
Click to expand...
Click to collapse
thanks man. really eased me up in there.
ChazzMatt said:
OK if your Bootloader is unlocked and you have fastboot, then you don't need Download mode right now.
Install TWRP, root. Follow Section 6 of the WTF instructions.
Later after you restore modem you can worry about Download mode.
Click to expand...
Click to collapse
it says that "Requested download size is more than max allowed"
electrical potato said:
it says that "Requested download size is more than max allowed"
Click to expand...
Click to collapse
See the Section 7 Trouble Shooting Tips.
You're using the TWRP listedto WTF post, right?
ChazzMatt said:
See the Section 7 Trouble Shooting Tips.
You're using the TWRP listedto WTF post, right?
Click to expand...
Click to collapse
tried it on my laptop and it works perfectly
electrical potato said:
tried it on my laptop and it works perfectly
Click to expand...
Click to collapse
That is one of the Trouble Shooting Tips... Try different computer.
Welcome to the Root Club!
ChazzMatt said:
That is one of the Trouble Shooting Tips... Try different computer.
Welcome to the Root Club!
Click to expand...
Click to collapse
another problem arose. now in TWRP. wipe to format data, typed yes, and it returns with red text "failed to mount /system (unknown error 150)". same happens when i try to do a backup.
should i go to advanced wipe and change the file system of /system to others and then back to ext4?
edit: fixed by selecting ext4 in change file system. /system was showing 0mb, after redoing the file system it is now 14mb and able to be backed up
I have problem with lg v30.
It is v30 VS996 (maybe). but it was flashed US998 Pie. And now it has an error on camera and fingerprint.
I can not enter download mode to flash stock rom and bootloader is locked.
Please, tell me what should i do.
Thank you.
CuDem said:
I have problem with lg v30.
It is v30 VS996 (maybe). but it was flashed US998 Pie. And now it has an error on camera and fingerprint.
I can not enter download mode to flash stock rom and bootloader is locked.
Please, tell me what should i do.
Click to expand...
Click to collapse
Try a regular Factory Data Reset from the Settings menu, if you haven't already. If the bootloader is locked and the phone never rooted (which it sounds like) it is unlikely that the actual ROM was corrupted - though or course not impossible.
What happens when you try to enter Download mode?
I tried to reset factory in setting and it had no effect. With reset data on recovery, it showed error message.
When i enter the download mode, it show 5 dots.
I have no idea to solve this issue
CuDem said:
I tried to reset factory in setting and it had no effect. With reset data on recovery, it showed error message.
When i enter the download mode, it show 5 dots.
I have no idea to solve this issue
Click to expand...
Click to collapse
Are you saying you have TWRP (custom recovery) on your phone? With BL locked?
Factory Reset from Settings menu only works with stock recovery, and goes deeper than TWRP wipe.
If you have TWRP, you can use that to re-flash your ROM (as ZIP) and/or to re-flash laf (Download Mode, either as ZIP or as image).
Otherwise it sounds like Download Mode is there, but LGUP isn't picking it up correctly. I suggest starting over with LGUP. People often have the wrong version, since so many are floating around: Uninstall it completely, delete its folders, possibly uninstall USB driver as well. Restart Windows. Now install drivers and LGUP from scratch using the exact versions and installation steps from ChazzMatt's Pie ROM thread linked below:
[US998][STOCK][PIE]LG V30 US998 US99830b_00_0902.KDZ
https://forum.xda-developers.com/lg-v30/development/us998-lg-v30-us998-us99830a000704-kdz-t3952256
If that still doesn't do it, then try different USB port, different cable, even different computer. Some computers are not compatible with LGUP.
TheDannemand said:
Are you saying you have TWRP (custom recovery) on your phone? With BL locked?
Factory Reset from Settings menu only works with stock recovery, and goes deeper than TWRP wipe.
If you have TWRP, you can use that to re-flash your ROM (as ZIP) and/or to re-flash laf (Download Mode, either as ZIP or as image).
Otherwise it sounds like Download Mode is there, but LGUP isn't picking it up correctly. I suggest starting over with LGUP. People often have the wrong version, since so many are floating around: Uninstall it completely, delete its folders, possibly uninstall USB driver as well. Restart Windows. Now install drivers and LGUP from scratch using the exact versions and installation steps from ChazzMatt's Pie ROM thread linked below:
[US998][STOCK][PIE]LG V30 US998 US99830b_00_0902.KDZ
https://forum.xda-developers.com/lg-v30/development/us998-lg-v30-us998-us99830a000704-kdz-t3952256
If that still doesn't do it, then try different USB port, different cable, even different computer. Some computers are not compatible with LGUP.
Click to expand...
Click to collapse
No, my phone bootloader is locked then i can not install TWRP. I tried with your LGuUP you mention above but not successfully.
May i try to flash by fastboot follow this link:
https://androidforums.com/threads/flash-using-fastboot-mode.970254/
thank you
CuDem said:
No, my phone bootloader is locked then i can not install TWRP. I tried with your LGuUP you mention above but not successfully.
May i try to flash by fastboot follow this link:
https://androidforums.com/threads/flash-using-fastboot-mode.970254/
Click to expand...
Click to collapse
Thank you for the update.
I wouldn't recommend that procedure you linked. That post is five years old, for a completely different phone (LG G2), using a KDZ extractor from 2014 which probably doesn't work with today's KDZ files.
I still don't see how your Download Mode could have been damaged on an unrooted phone. I think the problem is most likely your PC or your cable.
But that aside, I say it's time to rip off the bandaid: Unlock the bootloader and put TWRP onto the phone. It's easy on US998. Follow the guide linked below.
(WTF...!) LG V30/V30+/V30S Bootloader Unlock & Root Method (With Clear Instructions)
https://forum.xda-developers.com/showpost.php?p=76584629&postcount=193
LG V30 is one of the most well documented, most rootable, and most supported phones on the planet -- largely thanks to the guy who wrote that guide. So don't look for any other solutions from anywhere else on the internet
TheDannemand said:
(WTF...!) LG V30/V30+/V30S Bootloader Unlock & Root Method (With Clear Instructions)
https://forum.xda-developers.com/showpost.php?p=76584629&postcount=193
LG V30 is one of the most well documented, most rootable, and most supported phones on the planet -- largely thanks to the guy who wrote that guide. So don't look for any other solutions from anywhere else on the internet
Click to expand...
Click to collapse
Thanks for the very kind words. :good:
TheDannemand said:
I still don't see how your Download Mode could have been damaged on an unrooted phone. I think the problem is most likely your PC or your cable.
But that aside, I say it's time to rip off the bandaid: Unlock the bootloader and put TWRP onto the phone.
Click to expand...
Click to collapse
As we discussed elsewhere, however, he would need Download mode to go back to the early Oreo firmware is he wanted to bootloader unlock and root.
There have been reports of other people losing Download mode when updating to US998 Pie -- but those were people using the TWRP flashable zip. The fix was to flash US998 20e (Oreo) TWRP flashable zip and for some reason that restored Download mode. They could then try again to update to US998 Pie if they really wished. I haven't see that reported flashing with KDZ.
The fingerprint and camera issue is also reminiscent of a V30 that was on LOS-17 (which needs a permissive kernel). Even when going back to stock firmware, you still have to run permissive. The fix for THAT problem is to refurbish to Nougat stock firmware and then update back to newer stock firmware (last Oreo which is very stable or Pie which has some issues).
But he can't do that either until he gets Download mode back.
I really don't have any suggestions.
Thank you for pointing that out, @ChazzMatt!
@CuDem: ChazzMatt is completely right. I forgot you have to use Download Mode to roll back to 20b in order to use the WTF bootloader unlock trick. Duh... So that's not a path for you to fix this.
To me it sounds like this phone WAS previously BL unlocked and rooted, and that's where the problems with Download Mode began. Or LOS-17 was installed, causing the Camera and Fingerprint issues mentioned. Maybe the previous owner re-locked the bootloader and sold the phone, pretending it was in better shape than it was?
I can think of the following:
1) If you know the history of the phone and that it was never unlocked or rooted before, then I would still say it is unlikely that its laf partition (which contains Download Mode) was actually corrupted. The phone could still have been Frankensteined incorrectly or "abused" with LGUP, but because of very thorough integrity checking when flashing through Download mode, it would rarely cause you to lose Download mode. So if you KNOW it has never been BL unlocked, I would continue trying on a different computer, with different cables, different USB ports, drivers etc. If fastboot devices returns a serial number, that's a good test that USB drivers and ADB connection is working. But you could still have LGUP issues. Again, some computers (particularly some AMD processors) are simply not compatible with LGUP.
2) See if you can find the OTA update file for US99830b and force update it using LGUP FOTA mode. This works with the phone booted into the OS and MTP (file sharing) turned on. It may not complete the update since you are already on 30b, but it will rewrite laf (Download mode) as its first step. Several H932 owners have done that back in the Oreo days, and a few have done it on Pie. Study the thread linked below for the background and the procedure. But DO NOT use the files shared in that thread, NOR ANY OTHER H932 FILES. You will brick your phone if you flash anything H932 on any other model, or vice versa.
[H932][T-MOBILE] URL for the H932 Pie OTA file
https://forum.xda-developers.com/lg-v30/help/h932-url-h932-pie-ota-file-t3991417
3) Use Qualcomm 9008 mode and the leaked firehose to rewrite the laf partition (or the entire firmware). This is a more complex procedure, which I cannot help you with, but it allows writing almost anything to the phone, and should be compatible with all V30 models EXCEPT H932. See the thread linked below, and be ready for some hard work:
LG V30 Unbrick guide (Qualcomm EDL 9008 Mode, Hardbirck, with no download mode)
https://forum.xda-developers.com/lg-v30/how-to/lg-v30-unbrick-guide-qualcomm-edl-9008-t4048661
4) Contact the XDA member from Moldova who can repair your V30 remotely for a fee. His name always escapes me, but maybe Chazz or others remember. He is also on eBay:
Remote Service Repair Unbrick LG G7 G6 V30 V35 V40 in Qualcomm Mode 9008
https://www.ebay.com/itm/Remote-Ser...794311?hash=item46994ee187:g:gd0AAOSw0qFdJi7a
And that's all I can think of. Once again, please report the outcome back here, as it may help others. Good luck to you
Edit: Oh, and then there is Update Error Recovery on the Update tab in LG Bridge, which has worked for some to fix Download mode. It also runs from inside the OS (at least initially). But I am not sure LG Bridge works with US998, let alone on Frankenstein'ed phones. Still, it's easy, so worth a try.
TheDannemand said:
To me it sounds like this phone WAS previously BL unlocked and rooted, and that's where the problems with Download Mode began. Or LOS-17 was installed, causing the Camera and Fingerprint issues mentioned. Maybe the previous owner re-locked the bootloader and sold the phone, pretending it was in better shape than it was?
Click to expand...
Click to collapse
Running this fastboot command and looking at unlock_count and lock_count can be used to determine if the phone was bootloader unlocked before...
Code:
fastboot getvar all
jptV30 said:
Running this fastboot command and looking at unlock_count and lock_count can be used to determine if the phone was bootloader unlocked before...
Click to expand...
Click to collapse
Oh yeah, right. That's a good idea if you don't know whether the phone has been rooted.

Phone not recognized in download mode

I tired a search and the only similar thread i found was someone who was able to boot into twrp. I am not able to do that. over a year ago i rooted my phone. but i haven't had any issues. out comes this stupid update and my phone tried to install it and failed. since then I've had issues so i figured i'd just reset the phone. I go to pull up adb and adb will force my phone to reboot but does not recognize it after its in bootloader mode. Okay weird also will show my phone in adb when i type adb devices, and will force it to reboot to firmware update, but never sees it. Figured I'd start back at square one Load up the patched version of LGUP, it recgnizes my phone when its NOT in bootloader mode, but the second i try it in bootloader it doesn't see my phone. I've tried deleting the adb Lgup the device drivers i've revoked debuggin authorization I just can't think of anyreson other than so messed up firmware that the phone would be doing this
Will doing the "button dance" get you into twrp?
What's the button dance?
deplorableone said:
What's the button dance?
Click to expand...
Click to collapse
Google LG V30 button dance.
Yeah all it does is restart my phone and when I get to the reset screen is just wipes my device
Yeah all it does is restart my phone and when I get to the reset screen is just wipes my device
deplorableone said:
Yeah all it does is restart my phone and when I get to the reset screen is just wipes my device
Click to expand...
Click to collapse
If you did it correctly, then that means you must not TWRP installed. If you had TWRP the button dance would boot to TWRP instead of wiping your phone. I hate doing the button dance as it takes specific timing to hit the buttons correctly.
In all my Guides there's only one scenario where I tell people they have no other choice than to use the button dance. In all others I stress other options.
I also tell people to never take an OTA update if you have TWRP installed.
ChazzMatt said:
If you did it correctly, then that means you must not TWRP installed. If you had TWRP the button dance would boot to TWRP instead of wiping your phone. I hate doing the button dance as it takes specific timing to hit the buttons correctly.
In all my Guides there's only one scenario where I tell people they have no other choice than to use the button dance. In all others I stress other options.
I also tell people to never take an OTA update if you have TWRP installed.
Click to expand...
Click to collapse
Yeah I woke up to the "update not installed" nag screen...I know i had twrp installed since it's how i installed magisk, and the VS99630c .zip. Those are still on my SD card. At least after wiping the phone it seems to be behaving properly, but magisk is now gone and being unable to boot into twrp means I can't put it back. It's all good though it's a 3+ year old phone figured if i can't fix it i'll just replace it. Didn't know if anyone had an experience like this with lgup and adb not recognizing the handset in download mode. Seemed like a strange quirk...
deplorableone said:
Didn't know if anyone had an experience like this with lgup and adb not recognizing the handset in download mode. Seemed like a strange quirk...
Click to expand...
Click to collapse
Yes, sometimes reinstalling drivers helps. Also trying a different computer.
Your bootloader is still unlocked, but because you are on Verizon firmware it's not giving you the scary warning. To reinstall TWRP and Magisk, using Dev Patched LGUP you would have to temporarily flash back to US998 firmware (Oreo would be best), then use go through Section 6 of the WTF Instructions to install TWRP, reformat internal memory, install Magisk. Then you could re-flash VS996 30C (until a TWRP flashable zip of 30d comes along). You would need to freeze the update files so this doesn't happen again.
ChazzMatt said:
Yes, sometimes reinstalling drivers helps. Also trying a different computer.
Your bootloader is still unlocked, but because you are on Verizon firmware it's not giving you the scary warning. To reinstall TWRP and Magisk, using Dev Patched LGUP you would have to temporarily flash back to US998 firmware (Oreo would be best), then use go through Section 6 of the WTF Instructions to install TWRP, reformat internal memory, install Magisk. Then you could re-flash VS996 30C (until a TWRP flashable zip of 30d comes along). You would need to freeze the update files so this doesn't happen again.
Click to expand...
Click to collapse
Yes i've been trying to just start back over at square one using the patched LGUP, but it doesn't recognize the phone. I've numerous cables and 2 different PC's and no luck yet. I am going to try and buy a new cable though since I just used the ones I've had around the house. Seems odd that the phone is recognized using the cables up until i place it into download mode though. Might try and clean out the ole charging port as well. Again i originally followed the instructions to a T and have had absolutely no issues but noticed i lost voice commands and my sms/mms were messed up, immediately after the failed update. the phone seems to be 100% now with no issues due to the wipe. SO it's not the end of the world if I can't figure it out, but more like a challenge of fixing it
If someone can capture and share that OTA update you received, you can flash it using LGUP in FOTA mode. This often restores a broken Download Mode, even if the system update itself fails due to the phone not being stock and/or lacking stock recovery.
LGUP FOTA mode works inside the OS (with the phone in File Transfer mode) and doesn't require working Download Mode.
Just a thought
Caveat: The purpose of this would ONLY be to fix your Download mode. However there is a risk it might actually mess up your OS (which is currently working). So if it doesn't fix your Download mode, you'll actually be worse off.
I have the exact same issue so you're not alone, I'm trying anything I can think of, lmk if you figure something out. It's weird it sees phone in desktop with phone booted then a glitch in download mode and it never pulls up. I'm due for a new phone anyway, the update slipped thru somehow, lost root and twrp, can't flash. I'll let you know if I figure it out as well. If Chazz don't know how to fix itwe might be out of luck.
cpete2112 said:
I have the exact same issue so you're not alone, I'm trying anything I can think of, lmk if you figure something out. It's weird it sees phone in desktop with phone booted then a glitch in download mode and it never pulls up. I'm due for a new phone anyway, the update slipped thru somehow, lost root and twrp, can't flash. I'll let you know if I figure it out as well. If Chazz don't know how to fix itwe might be out of luck.
Click to expand...
Click to collapse
Which model do you have, and which ROM are you on?
If you are "somewhat stock", on a model for which we have OTA files, you can force flash those using LGUP FOTA mode. This works inside the OS, doesn't require Download mode, and will often restore Download mode as the first thing -- even if the update itself fails because the phone isn't completely stock.
If you are on T-Mobile H932, we have a separate thread to help restore Download mode using OTA files and LGUP FOTA mode:
https://forum.xda-developers.com/lg-v30/help/h932-url-h932-pie-ota-file-t3991417/page7
And if you are on any model OTHER than
T-mobile H932, and you cannot find an OTA file, you can use the firehose and guidance in the thread linked below to re-flash the laf partition (Download mode).
https://forum.xda-developers.com/lg-v30/how-to/lg-v30-unbrick-guide-qualcomm-edl-9008-t4048661
I have a Verizon on 30c, I would like to make it to 30d, this phone started out as a ls998 sprint model, not that that matters idk. Yah I'm gonna try one of those mentioned routes to fix, I'm out of ideas.
cpete2112 said:
I have a Verizon on 30c, I would like to make it to 30d, this phone started out as a ls998 sprint model, not that that matters idk. Yah I'm gonna try one of those mentioned routes to fix, I'm out of ideas.
Click to expand...
Click to collapse
You're in luck then: If you're on Verizon 30c, it *should* offer you a 30d OTA update. And if you accept that, it *should* repair your Download mode as part of the update
The potential risk here is when you're not completely stock, the OTA probably won't complete. That's ok as long as it repairs your Download mode, since then you can re-flash with LGUP. But in case it *doesn't* repair your Download mode, you could theoretically be worse off. I haven't heard of cases where that happened, I'm just pointing out the potential risk.
Good luck to you :fingers-crossed:
Edit: No wait, if you started out as LS998, Verizon won't offer you the OTA. But I believe somebody captured the 30d OTA file and shared it in another thread (about the 30d). If so, you can force flash it with LGUP FOTA mode. Make sure the PC can see the phone as MTP (USB File mode) before attempting this.
TheDannemand said:
Which model do you have, and which ROM are you on?
If you are "somewhat stock", on a model for which we have OTA files, you can force flash those using LGUP FOTA mode. This works inside the OS, doesn't require Download mode, and will often restore Download mode as the first thing -- even if the update itself fails because the phone isn't completely stock.
If you are on T-Mobile H932, we have a separate thread to help restore Download mode using OTA files and LGUP FOTA mode:
https://forum.xda-developers.com/lg-v30/help/h932-url-h932-pie-ota-file-t3991417/page7
And if you are on any model OTHER than
T-mobile H932, and you cannot find an OTA file, you can use the firehose and guidance in the thread linked below to re-flash the laf partition (Download mode).
https://forum.xda-developers.com/lg-v30/how-to/lg-v30-unbrick-guide-qualcomm-edl-9008-t4048661
Click to expand...
Click to collapse
My friend was just looking for this information. Thanks
gimpy1 said:
Will doing the "button dance" get you into twrp?
Click to expand...
Click to collapse
Doin' the buttons in DL mode.

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