Hi guys!
At this kind of bad time, I got my hands on a weird Japan variant of V30+, meaning that it came with some weird Japanese baseband, IMEIs, modems or whatever. As already seen in xda threads, someone has succeeded in breaking their LGV35... And I surely just in no way want that also happens to me.
So would someone who has successfully flashed any custom ROMs on their LGV35 be kind enough to help me out? Many thanks for any helping hand! I'm willing to install Lineage OS while maintaining the normal SIM functions.
If I ever find any working solutions I would share it here so as to help anyone that comes after me.
For failures that already happened or anyone confused by the weirdo names plz take a look at this thread: https://forum.xda-developers.com/lg-v30/help/lg-v35-isai-japanese-lg-v30-modem-t3966962
Guessing from my former experiences fighting with these Japan variant of Samsung phones, we need to at least back up the original, that meaning, the working EFS partition in TWRP. But as for LG phones, that might just be impossible: You need to flash US998 firmware, or don't I?
Possible solutions found! Guys, I ain't no Fermat who leaves others' a** kicked. I found it on some Chinese forum and I just need to test it out--don't want to misguide anyone else.
blazkowicz255 said:
For failures that already happened or anyone confused by the weirdo names plz take a look at this thread: https://forum.xda-developers.com/lg-v30/help/lg-v35-isai-japanese-lg-v30-modem-t3966962
Guessing from my former experiences fighting with these Japan variant of Samsung phones, we need to at least back up the original, that meaning, the working EFS partition in TWRP. But as for LG phones, that might just be impossible: You need to flash US998 firmware, or don't I?
Click to expand...
Click to collapse
Problem with US998 firmware is it doesn't have this Japanese variant modem. They even use Wi-Max bands!
ChazzMatt said:
Problem with US998 firmware is it doesn't have this Japanese variant modem. They even use Wi-Max bands!
Click to expand...
Click to collapse
Yay, that is what exactly causing problems around... Japan kinda falls behind maybe could I say so, or it is just they are really different.
blazkowicz255 said:
Yay, that is what exactly causing problems around... Japan kinda falls behind maybe could I say so, or it is just they are really different.
Click to expand...
Click to collapse
The last person who had one of these got a 2nd one which still had unrooted stock. He was going to try to extract the modem partitions so he could re-flash on his bootloader unlocked rooted one. Never heard the results.
ChazzMatt said:
The last person who had one of these got a 2nd one which still had unrooted stock. He was going to try to extract the modem partitions so he could re-flash on his bootloader unlocked rooted one. Never heard the results.
Click to expand...
Click to collapse
Finally, I had time to get my hands on the phone. I'm not as $$y as him tho. I've been trying the method you provided to convert LGV35 to US998, only after which could I proceed. However, I am aware that "master reset" was unable to stop the repeating bootup-reboot procedure. After flashing US998 10D, in LGUP, the phone is still recognized as LGV35 instead of US998. As a result, "upgrading" to US99820a says the wrong device. I had to use DL partitions again. Well, it still loops under that circumstance. Still working on it now.
Updates: Conversion seems successful, LGUP recognize it as "US99820a" now. Dunno if I could ever stop that boot loop or not. If impossible, maybe I had to attempt skipping it then.
There really isn't anything I might do due to that constantly rebooting. In that master resetting, the erasing image does appear, but it doe not help with the boot looping. It is okay for me. The all but one thing that I learned in my long-struggling with android devices, from as early as 2012 to 2020, that it is super normal if things went wrong. You just need to give it more shots, till you finally succeed or simply dump it somewhere.
Finally, I found the way to stabilize OS on the LG LGV35 isai variant. Read accompanied by this song over here if you are a jazz fan just like me: https://www.youtube.com/watch?v=HsM_VmN6ytk
The method is simple:
1, Partition Download US998 10d
2, Partition Download US998 20a
3, PD H930 20j
4, PD US998 10d
5, Refurbish US998 10d
6, Upgrade to US998 20a
ChazzMatt said:
The last person who had one of these got a 2nd one which still had unrooted stock. He was going to try to extract the modem partitions so he could re-flash on his bootloader unlocked rooted one. Never heard the results.
Click to expand...
Click to collapse
Sending 'unlock' (1 KB) FAILED (Write to device failed (Invalid argument))
Don't know if someone else also having this problem? Any fixes?
blazkowicz255 said:
Finally, I found the way to stabilize OS on the LG LGV35 isai variant. Read accompanied by this song over here if you are a jazz fan just like me:
The method is simple:
1, Partition Download US998 10d
2, Partition Download US998 20a
3, PD H930 20j
4, PD US998 10d
5, Refurbish US998 10d
6, Upgrade to US998 20a
Click to expand...
Click to collapse
i have tried but the sim has no signal
Can someone using this variant backup me the partition ftm and modem? help me
phamtuan1699 said:
Can someone using this variant backup me the partition ftm and modem? help me
Click to expand...
Click to collapse
I do understand your frustration. But it is better if you only post about it in ONE thread. You've resurrected 4-5 different threads here asking for help with the same problem.
I replied in one of the other threads too, although unfortunately I don't have a modem image for you.
Good luck. I hope you find it
TheDannemand said:
I do understand your frustration. But it is better if you only post about it in ONE thread. You've resurrected 4-5 different threads here asking for help with the same problem.
I replied in one of the other threads too, although unfortunately I don't have a modem image for you.
Good luck. I hope you find it
Click to expand...
Click to collapse
thanks. I will note the following times
Related
Can I install the H850 firmware on H831 (Canadian version)?
The H831 is missing a lot of options, like the WiFi (SIP) calling,the radio app, etc.
genasoft said:
Can I install the H850 firmware on H831 (Canadian version)?
The H831 is missing a lot of options, like the WiFi (SIP) calling,the radio app, etc.
Click to expand...
Click to collapse
NO
Just as I thought. Thanks
genasoft said:
Just as I thought. Thanks
Click to expand...
Click to collapse
No problem
On an another though, can I install firmware that is for the same device (H831) but from different carrier:
eg. AVC (H83110d_00_007_11.kdz), RGS (H83110d_00_05_04.kdz), TLS (H83110e_00_07_20.kdz).
genasoft said:
On an another though, can I install firmware that is for the same device (H831) but from different carrier:
eg. AVC (H83110d_00_007_11.kdz), RGS (H83110d_00_05_04.kdz), TLS (H83110e_00_07_20.kdz).
Click to expand...
Click to collapse
Yes
nash211 said:
Yes
Click to expand...
Click to collapse
Thanks
OK guys so here is some additional info. Since I am a rookie when it comes to Android, this info might help somebody get things further.
I spoke with LG Canada tech support and they confirmed that theoretically the H850 firmware would work on H831 so long it is properly done. There is a chance thought that the device might get bricked, but since the hardware is identical it should work.
Your thouths on this are much appreciated.
genasoft said:
OK guys so here is some additional info. Since I am a rookie when it comes to Android, this info might help somebody get things further.
I spoke with LG Canada tech support and they confirmed that theoretically the H850 firmware would work on H831 so long it is properly done. There is a chance thought that the device might get bricked, but since the hardware is identical it should work.
Your thouths on this are much appreciated.
Click to expand...
Click to collapse
@autoprime has already stated...and rather obviously! H850 ROMs are NOT compatible to flash on different G5 variants! There are many changes that will inevitably lead to bricking your handset.
DO NOT FLASH DIFFERENT VARIANT ROMS.
I dont want this to come off as me not agreeing with Anarchist77's comments above or anything like that. I 100% agree with his advice. BUT... just to lay all the facts out there (and some of my opinions) I will say the following...
it would only be a definite brick if the H831 was had the anti-rollback fuse set to version 01... since the H850 is still at version 00.
technically if both the H831 and H850 were fuse version 00.. you could flash the H850 kdz onto the H831 and it wouldnt be an instant brick.. but who knows how much would be broken or crashing... and then you may or may not get stuck on the H850 software unable to flash back to H831 if you wanted to. It's hard to say exactly what would happen but I see nothing positive coming from it.. other than the possible confirmation that it IS possible to flash without brick.
the H830 (tmobile usa) kdz/tot is the model you DO NOT want to flash to any other variant no matter what fuse version each device is at... it would be a 100% brick.
I believe my initial comments about not "cross-flashing" versions was with the H830 and H831... as many H831 users assumed since the numbers were close they could be shared. The H830 has a completely different bootloader than every single other G5 and is 100% incompatible with any other G5.
All the other G5's (att, vzw, sprint, us cellular, canada, intl, korea, etc) all share some common info that would not lead to a instant brick. But without having root access and twrp and the ability to boot into recovery and fix some things that broke.. I dont think anyone should be flashing a different models kdz/tot to their phone.The only exception being the EUR H850 and some other regions H850... Or flashing a H850K device with H850 EUR KDZ... that would be ok (but you still may lose settings like lte calling etc based on carrier).
If you want to "yolo" and try flashing H850 to H831... don't let me stop you. There's a chance you flash the H850 kdz and all is ok. But I think the chance is slim and you should probably stick to just trying other canadian KDZs instead like mentioned in post #5 of this thread.
tl;dr
the only absolutes are..
1. you cannot flash H830 KDZ to any other model as it will 100% be a brick... and the opposite is also true.. you cannot flash a non-H830 KDZ to a H830 phone.. insta-brick.
2. you cannot flash another models KDZ if the KDZ's fuse version is lower than your phones fuse version (KDZ fuse version 0 + phone fuse version 1 = brick)
everything else is uncharted territory but due to region/carrier/radio differences not all things may work... if at all.
Wow, nicely laid out. Very good info.
All I want is to enable the SIP(internet calling) menu and configure a VoIP account.
I guess I M out of luck.
Thanks for the amazing explanation again. Much appreciated.
Just tried to flash a bunch of h860 and h850 roms and, unfortunately, it looks like lg added a variant checker in lgup and thus, unless we find a way to desactivate the check or trick it, we can't flash any rom thats wasn't made for our variant.
So it is possible to flash h850 aboot on h831 device variant without bricking it? The chain of trust will not break?
cloud1250000 said:
So it is possible to flash h850 aboot on h831 device variant without bricking it? The chain of trust will not break?
Click to expand...
Click to collapse
Dunno what you mean by "chain of trust" but I will guess that the kdz fuse count. Anyway, I wrote (and afaik that still true) just before your comment that if you try to flash any firmware that wasn't built for your particular g5 variant (such as the h850 firmware on the h831) lgup will simply throw an error and won't flash so you won't even pass the fuse count check part of the flashing process.
EDIT: Just read @Honestly Annoying post and I guess that's what your referring to. It looks like he found a way to disable the variant check in lg up or simply use another tool for flashing a specific partition. With that said, unless he's using a method specific to the sprint g5 firmware to disable that check (which I doubt ) I don't see why we couldn't do the same.
Well not exactly from lgup, when you get root access, you can flash w/e you want right? Pretty sure this is how he did. But this should brick the device...
cloud1250000 said:
Well not exactly from lgup, when you get root access, you can flash w/e you want right? Pretty sure this is how he did. But this should brick the device...
Click to expand...
Click to collapse
You could be interested in this
---------- Post added at 01:52 AM ---------- Previous post was at 01:49 AM ----------
Also @autoprime I just tried to downgrade to android 6.0 using upercut and I get this error. Do you have any idea of what it could be ? Just checked and the rollback number is still 00..
autoprime said:
Or flashing a H850K device with H850 EUR KDZ... that would be ok (but you still may lose settings like lte calling etc based on carrier)
Click to expand...
Click to collapse
you reckon this will work? i got H850K, i can't live without xposed.
Binh Vo said:
you reckon this will work? i got H850K, i can't live without xposed.
Click to expand...
Click to collapse
flashing H850 kdz to H850K device won't help you unlock the bootloader... LG's bootloader unlock program goes by device IMEI and serial number... not what model number you flash it to. Otherwise people could just flash a different model's KDZ and unlock.
It will work as in not brick your phone.. and allow you to use the H850 software vs the H850K but that's about it.
Just want to add my 2 cent. I'm a technician in a repair shop and use different tools to unlock/repair phones. Most of these tools can (I believe) access and modify partitions through the serial port when in "Download mode". They can erase the /persist partition that is responsible for FRP lock (or directly edit the /data partition to make it seem like the initial setup has been completed), unlock the phone, and also change the IMEI to anything. These three procedures require access to important commands and partitions of the phone. I am looking into how these tools can obtain what seems to me like an unrestricted R/W access to the filesystem. I would guess that since important partitions like /persist, /efs , /data etc. can be freely modified in DL mode to achieve this, the /system partition can probably be modified too. Don't know too much about secure boot, SE Linux and the anti-rollback e-fuse, but these procedures seem to be unaffected by any of those security measures.
What can be done to a H831 today to enable VoLTE?
Hi everyone,
A couple months ago I switched over to T-Mobile. I bought my V30 from AT&T and got it unlocked after switching to T-Mobile.
Apparently Android Oreo 8.0 is rolling out to AT&T V30s but when I check for updates no updates are available. Is there any way I can get my phone to update now that I'm on T-Mobile?
Thanks
SuhasTheBest said:
Hi everyone,
A couple months ago I switched over to T-Mobile. I bought my V30 from AT&T and got it unlocked after switching to T-Mobile.
Apparently Android Oreo 8.0 is rolling out to AT&T V30s but when I check for updates no updates are available. Is there any way I can get my phone to update now that I'm on T-Mobile?
Thanks
Click to expand...
Click to collapse
If you can get your hands on an active att sim card, or from one of its MVNOs. That is how I updated my lg gpad. I put an h2o sim card and the next day the nougat update was already loaded. Other than that all I can think of is flashing the firmware.
poncespr said:
If you can get your hands on an active att sim card, or from one of its MVNOs. That is how I updated my lg gpad. I put an h2o sim card and the next day the nougat update was already loaded. Other than that all I can think of is flashing the firmware.
Click to expand...
Click to collapse
Thanks! I'll try my friend's ATT sim later today.
poncespr said:
If you can get your hands on an active att sim card, or from one of its MVNOs. That is how I updated my lg gpad. I put an h2o sim card and the next day the nougat update was already loaded. Other than that all I can think of is flashing the firmware.
Click to expand...
Click to collapse
Thanks! I'll try my friend's ATT sim later today.
I had an AT&T sim in my LG-H931 (that is unlocked and has been running on T-Mo since I got it) for about an hour on Saturday with no luck. For what it is worth, I am still on the September security patch, so at the very least I would have expected to see an update to that right away.
I may be unhappily stuck on 7.1.2 unless someone else figures out a trick.
SuhasTheBest said:
Thanks! I'll try my friend's ATT sim later today.
Click to expand...
Click to collapse
Any luck?
I'm in the same boat, a firmware file that we could flash though bridge would probably fix it, but I haven't found any firmware files for the H931 Oreo anywhere =/
Update?
Any update with this? I am on the same boat. I bought unlocked V30 from attached and use it with MetroPCS..
I bought ATT prepaid card hoping that it will prompt the update with no luck so far.
Considering flashing but like previous poster said , I could not find update file for H931 ATT oreo.
Switching from Apple btw and I wish I did it a long time ago, love it!
Jkho89 said:
Any update with this? I am on the same boat. I bought unlocked V30 from attached and use it with MetroPCS..
I bought ATT prepaid card hoping that it will prompt the update with no luck so far.
Considering flashing but like previous poster said , I could not find update file for H931 ATT oreo.
Switching from Apple btw and I wish I did it a long time ago, love it!
Click to expand...
Click to collapse
There's long been an "update" with this. You convert the H931 to open market US998 and flash the latest KDZ. See the Frankenstein thread. I post latest US998 KDZ whenever they are released.
https://forum.xda-developers.com/lg-v30/how-to/using-lgup-crossflashing-t3780969
AT&T, along with Sprint, won't release KDZ and won't give updates to non-customers. So, best to convert phone to variant that receives public KDZ.
ChazzMatt said:
There's long been an "update" with this. You convert the H931 to open market US998 and flash the latest KDZ. See the Frankenstein thread. I post latest US998 KDZ whenever they are released.
https://forum.xda-developers.com/lg-v30/how-to/using-lgup-crossflashing-t3780969
AT&T, along with Sprint, won't release KDZ and won't give updates to non-customers. So, best to convert phone to variant that receives public KDZ.
Click to expand...
Click to collapse
Oh wow, that made total sense. Thank you for guiding me to the right post, I am really new with this.
ChazzMatt said:
There's long been an "update" with this. You convert the H931 to open market US998 and flash the latest KDZ. See the Frankenstein thread. I post latest US998 KDZ whenever they are released.
https://forum.xda-developers.com/lg-v30/how-to/using-lgup-crossflashing-t3780969
AT&T, along with Sprint, won't release KDZ and won't give updates to non-customers. So, best to convert phone to variant that receives public KDZ.
Click to expand...
Click to collapse
Sorry Chaz, I hope it is okay for me to post it here. I noticed your name on most LG V30 posts and I know you are probably the best person to ask. First of all I wanted to thank you for providing the instruction for the flashing. I really thought I bricked my phone for a couple times. Here is what I did:
1. Wrongfully ran the flashing not in donwload mode - was not able to turn on the phone.
2. Panicked, followed instruction to master reset.
3. I went back to download mode, Flash US998 Nougat.
4. For some reason it could not go pass the setup (keep restarting).
5. Went to Download Mode - Flash Upgrade to Oreo US988. Stable.
6. I think I was successful as I was able to restore my data and the phone works.
One question..probably a stupid one as I am new android user, but I noticed the User Interface is really different , I believe this is what they referred as a "stock" Oreo? It is useable but the UI is really basic. See the attached link:
[url]https://photos.app.goo.gl/h3eeBdoGTtHRM6Y4A[/URL]
[url]https://photos.app.goo.gl/S1PiJQR3XcYn9cZe7[/URL]
Does this mean I just had my Bootloader unlocked and the phone is now ready to flash different variants with LG UP "update" selection?
I am currently using Metro PCS and was wondering of I can flash Tmobile variant to my phone, not sure if flashing Verizon (CDMA) will cause problem for the network.
Greatly appreciate all suggestions or advice
Jkho89 said:
Sorry Chaz, I hope it is okay for me to post it here. I noticed your name on most LG V30 posts and I know you are probably the best person to ask. First of all I wanted to thank you for providing the instruction for the flashing. I really thought I bricked my phone for a couple times. Here is what I did:
1. Wrongfully ran the flashing not in donwload mode - was not able to turn on the phone.
2. Panicked, followed instruction to master reset.
3. I went back to download mode, Flash US998 Nougat.
4. For some reason it could not go pass the setup (keep restarting).
5. Went to Download Mode - Flash Upgrade to Oreo US988. Stable.
6. I think I was successful as I was able to restore my data and the phone works.
One question..probably a stupid one as I am new android user, but I noticed the User Interface is really different , I believe this is what they referred as a "stock" Oreo? It is useable but the UI is really basic. See the attached link:
https://photos.app.goo.gl/h3eeBdoGTtHRM6Y4A
https://photos.app.goo.gl/S1PiJQR3XcYn9cZe7
Does this mean I just had my Bootloader unlocked and the phone is now ready to flash different variants with LG UP "update" selection?
I am currently using Metro PCS and was wondering of I can flash Tmobile variant to my phone, not sure if flashing Verizon (CDMA) will cause problem for the network.
Greatly appreciate all suggestions or advice
Click to expand...
Click to collapse
You're welcome! You've now successfully Frankensteined your phone to open market US998. Let me try to answer your questions...
As you admitted in step 1, you didn't follow the instructions. But also in step 4 you didn't... Luckily you survived it! Especially in step 4 -- between US998 Nougat and US998 Oreo -- is when you really needed to Master Reset, as that Nougat flash is necessary but very unstable. After Master Reset, then that Nougat is stable and you can continue to flash Oreo.
No, your bootloader is not unlocked, but you are carrier unlocked/SIM card unlocked to use this phone on different carriers.
I'm not sure if you are confusing terminology and are really asking about bootloader unlock? (which is necessary for root) You flashed US998 Oreo 20D, which has the bootloader lock security patch. If you want to unlock bootloader, you would need to temporarily downgrade to Oreo 20A or 20B first and run the instructions in the WTF thread... You could root, then update back to newest firmware after bootloader unlock. I'm only mentioning this because you asked about bootloader unlock.
Right now, you now have the open market, carrier unlocked US998 variant -- the one designed to run on all North American carriers. It will run on T-Mobile/MetroPCS quite fine. Lots of T-Mobile users have US998 on T-Mobile. Not only is there no need to flash T-Mobile variant KDZ, but since T-Mobile KDZ has different RSA encryption than all the other North America V30 variants, you'll definitely brick your phone if you try.
You can use "update" for US998 for future updates or you can use simple "upgrade" with full KDZ in the dev patched LGUP when future US998 KDZ are released. Simple "upgrade" in dev patched LGUP does not wipe your data. You had to wipe your data THIS time because you were converting to another model. Now that you are on US998, you can stay there. In the future you can just use "upgrade" for KDZ if you do not receive update prompts. I prefer flashing full image KDZ myself instead of partial image OTA.
The plain look is just the layout and theme choices you've made. (Go into Settings and search for Home and also Theme. ) Plus there's no carrier bloatware on US998. Also Oreo looks a little different, if you're just upgrading from Nougat.
For myself, I use Nova launcher with an icon theme pack to change the look. It has lots of different choices. I prefer a separate app drawer, and I prefer my app drawer have a black background to clearly differentiate it from my desktop. I like the Nova "cube" transition to go to my different desktop screens.
ChazzMatt said:
You're welcome! You've now successfully Frankensteined your phone to open market US998. Let me try to answer your questions...
As you admitted in step 1, you didn't follow the instructions. But also in step 4 you didn't... Luckily you survived it! Especially in step 4 -- between US998 Nougat and US998 Oreo -- is when you really needed to Master Reset, as that Nougat flash is necessary but very unstable. After Master Reset, then that Nougat is stable and you can continue to flash Oreo.
No, your bootloader is not unlocked, but you are carrier unlocked/SIM card unlocked to use this phone on different carriers.
I'm not sure if you are confusing terminology and are really asking about bootloader unlock? (which is necessary for root) You flashed US998 Oreo 20D, which has the bootloader lock security patch. If you want to unlock bootloader, you would need to temporarily downgrade to Oreo 20A or 20B first and run the instructions in the WTF thread... You could root, then update back to newest firmware after bootloader unlock. I'm only mentioning this because you asked about bootloader unlock.
Right now, you now have the open market, carrier unlocked US998 variant -- the one designed to run on all North American carriers. It will run on T-Mobile/MetroPCS quite fine. Lots of T-Mobile users have US998 on T-Mobile. Not only is there no need to flash T-Mobile variant KDZ, but since T-Mobile KDZ has different RSA encryption than all the other North America V30 variants, you'll definitely brick your phone if you try.
You can use "update" for US998 for future updates or you can use simple "upgrade" with full KDZ in the dev patched LGUP when future US998 KDZ are released. Simple "upgrade" in dev patched LGUP does not wipe your data. You had to wipe your data THIS time because you were converting to another model. Now that you are on US998, you can stay there. In the future you can just use "upgrade" for KDZ if you do not receive update prompts. I prefer flashing full image KDZ myself instead of partial image OTA.
The plain look is just the layout and theme choices you've made. (Go into Settings and search for Home and also Theme. ) Plus there's no carrier bloatware on US998. Also Oreo looks a little different, if you're just upgrading from Nougat.
For myself, I use Nova launcher with an icon theme pack to change the look. It has lots of different choices. I prefer a separate app drawer, and I prefer my app drawer have a black background to clearly differentiate it from my desktop. I like the Nova "cube" transition to go to my different desktop screens.
Click to expand...
Click to collapse
Appreciate the answers, Chazz.
Ok, I believed I did not do master reset from H931 to US998 Nougat but I did master reset from US998 Nougat to US998 Oreo. Now that you mentioned it, that was probably the reason why I succeeded.
Yes I am pretty sure I mixed up terms as I am probably not 100% with the terminologies, my apologies. Thanks for the warning, will definitely not flash T-Mobile variant.
Good to know that from now on I just have to do upgrade through dev patched LG UP to update US998 kdz.
I think the reason I thought the step was not complete was because in the UI, I was not able to move any app shorcut (and widget) on my screen. It is also not arrangeable. Also when I go to App and touch-hold the app icon, there is no option delete it. Is this normal? I went to try different themes and it did not fix the problem. I youtubed LGV30 Oreo and it looks really different from my current phone.
Couple of screenshots:
Last Page of the main screen, I had to click the "+" sign to add apps. and the app is not move-able.
https://photos.app.goo.gl/BgcRPCrdsaEDx4uX8
Swipe left from the main screen:
https://photos.app.goo.gl/BtMEkyrvv5vfrpQi8
Will Nova Launcher fix this?
Thanks Chazz.
Jkho89 said:
Appreciate the answers, Chazz.
Ok, I believed I did not do master reset from H931 to US998 Nougat but I did master reset from US998 Nougat to US998 Oreo. Now that you mentioned it, that was probably the reason why I succeeded.
Yes I am pretty sure I mixed up terms as I am probably not 100% with the terminologies, my apologies. Thanks for the warning, will definitely not flash T-Mobile variant.
Good to know that from now on I just have to do upgrade through dev patched LG UP to update US998 kdz.
I think the reason I thought the step was not complete was because in the UI, I was not able to move any app shorcut (and widget) on my screen. It is also not arrangeable. Also when I go to App and touch-hold the app icon, there is no option delete it. Is this normal? I went to try different themes and it did not fix the problem. I youtubed LGV30 Oreo and it looks really different from my current phone.
Couple of screenshots:
Last Page of the main screen, I had to click the "+" sign to add apps. and the app is not move-able.
https://photos.app.goo.gl/BgcRPCrdsaEDx4uX8
Swipe left from the main screen:
https://photos.app.goo.gl/BtMEkyrvv5vfrpQi8
Will Nova Launcher fix this?
Thanks Chazz.
Click to expand...
Click to collapse
Try Nova launcher.
If that doesn't fix the problem, do a Master Reset and then use dev patched LGUP and DL PARTITION (choose all partitions) the US998 Oreo KDZ over your phone. You may want to do that anyways...
ChazzMatt said:
Try Nova launcher.
If that doesn't fix the problem, do a Master Reset and then use dev patched LGUP and DL PARTITION (choose all partitions) the US998 Oreo KDZ over your phone. You may want to do that anyways...
Click to expand...
Click to collapse
Wow, a simple Master Reset fixed this issue! Thanks, you are the best man.
Jkho89 said:
Thanks, you are the best man.
Click to expand...
Click to collapse
Seconded!
ETA: I think your LG launcher had the "simple mode" option (or whatever it is called) turned on. I am using Nova too, so I am not positive where that setting is.
jaysus145 said:
Seconded!
ETA: I think your LG launcher had the "simple mode" option (or whatever it is called) turned on. I am using Nova too, so I am not positive where that setting is.
Click to expand...
Click to collapse
I am quite happy with the UI as is. I am just glad that I was able to get out of that "simple mode" UI.
The UI looks awesome now!
https://photos.app.goo.gl/k5yCxcVmWJvw9NrN8
Anyone else get a notification for an Android system update today? I just received one and haven't clicked it yet...
Added screenshot. Appears to be a security update.
I was under the impression that since my phone is rooted and Bootloader unlocked that I wouldn't receive security updates through play services. Apparently I was incorrect though.
Anyone know if this is safe to install or more specifically if installing it will effect my root status? I've switched back to the LS998 w. 21a update currently.
I installed the security update and all seems ok. I'm not rooted, so there's that also.
JonnyTrulove said:
Added screenshot. Appears to be a security update.
I was under the impression that since my phone is rooted and Bootloader unlocked that I wouldn't receive security updates through play services. Apparently I was incorrect though.
Anyone know if this is safe to install or more specifically if installing it will effect my root status? I've switched back to the LS998 w. 21a update currently.
Click to expand...
Click to collapse
You can't install an update without factory recovery.
Yeah I got the notification today too. I wonder if anyones working on repacking the update so it can be flashed in TWRP on unlocked rooted devices.
Side note, is there any way right now to unroot and put stock recovery on to get the update then reflash TWRP and re-root or would you lose the update in the process?
txag2011 said:
Yeah I got the notification today too. I wonder if anyones working on repacking the update so it can be flashed in TWRP on unlocked rooted devices.
Side note, is there any way right now to unroot and put stock recovery on to get the update then reflash TWRP and re-root or would you lose the update in the process?
Click to expand...
Click to collapse
IIRC for this, one needs a KDZ. Since Sprint does updates via FOTA, KDZs don't get released.
Updating requires someone to repack the update. Or flash the US998 KDZ, flash modems, edit APNs.
Last week I flashed my girl phone to sprint21a and forgot to root(flash Magisk)so she update her phone sometime in the last week and today when I tried to play around on her phone it was a no go
No more fastboot even though phone says it's bootloader unlocked .. I'm open to any suggestions .. going to try a few things tomorrow (Don't really care to much cause it's not my phone)
SO YEAH DON'T UPDATE LOL
pjsnyc said:
I installed the security update and all seems ok. I'm not rooted, so there's that also.
Click to expand...
Click to collapse
Can you post a screenshot of what your software version is now after taking the update?
elijah420 said:
IIRC for this, one needs a KDZ. Since Sprint does updates via FOTA, KDZs don't get released.
Updating requires someone to repack the update. Or flash the US998 KDZ, flash modems, edit APNs.
Click to expand...
Click to collapse
Saw your other reply in the US to LS thread. Oddly enough something weird went down when I was doing that and I flashed the LS version back along with root to get my LTE back, yet my software version still shows up as US. I dunno if that guide just flashed the modems back leaving the software version or if it should have changed the software version back to LS, but I've got a running phone with root and sprint APNs + LTE so I'm happy with it even if the software versions messed up.
Haven't seen any new US998 KDZ files though on xda (or google for that matter). Guess I'll have to wait and see if someone releases a new file that goes past the 99821a that I currently have, as thats the only one that appears to be available right now on here.
txag2011 said:
Haven't seen any new US998 KDZ files though on xda (or google for that matter). Guess I'll have to wait and see if someone releases a new file that goes past the 99821a that I currently have, as thats the only one that appears to be available right now on here.
Click to expand...
Click to collapse
Then you haven't looked at all.
We have US998 20D posted here in Development section as both full image KDZ as well as TWRP flashable zipped file.
And 20B before that, as both full image KDZ and TWRP flashable zipped file.
The threads are very active.
ChazzMatt said:
You haven't looked.
We have US998 20D posted here as KDZ and as well as TWRP flashable zipped file.
And 21B before that.
The threads are very active.
Click to expand...
Click to collapse
20d is the most recent? I did see that earlier (on google, but not here oddly enough) but I had figured that 20d came before 21a. My mistake.
edit: I found this post here. is this the correct file needed?
https://forum.xda-developers.com/lg-v30/development/rom-lg-us998-20d-rom-t3830318
txag2011 said:
20d is the most recent? I did see that earlier (on google, but not here oddly enough) but I had figured that 20d came before 21a. My mistake.
Click to expand...
Click to collapse
Typo. While 20D is the most recent, 20B was prior, and 20A before that, for US998. 20A is the first (oldest) US998 Oreo KDZ.
ChazzMatt said:
Typo. While 20D is the most recent, 20B was prior, and 20A before that, for US998. 20A is the first (oldest) US998 Oreo KDZ.
Click to expand...
Click to collapse
This is a bit odd then.. I'm on sprint.. The version I have is US99821a according to the software info page. I had followed JWnSC's thread for restoring LTE bands for sprint. I had the US998 software from your guide installed before flashing over his version. I had assumed that would set the version back to LS99821a but evidently I was wrong. Where exactly would 21a fit into this update timeline?
Assuming 20d is the most recent in this case, would the xda link I posted in my previous reply be the correct one to flash over? And if so, would that mean that JWnSC's files for restoring the LTE bands wouldn't work? I apologize if these questions seem dumb, I'm just trying to wrap my head around all of this.
txag2011 said:
This is a bit odd then.. I'm on sprint.. The version I have is US99821a according to the software info page. I had followed JWnSC's thread for restoring LTE bands for sprint. I had the US998 software from your guide installed before flashing over his version. I had assumed that would set the version back to LS99821a but evidently I was wrong. Where exactly would 21a fit into this update timeline?
Assuming 20d is the most recent in this case, would the xda link I posted in my previous reply be the correct one to flash over? And if so, would that mean that JWnSC's files for restoring the LTE bands wouldn't work? I apologize if these questions seem dumb, I'm just trying to wrap my head around all of this.
Click to expand...
Click to collapse
There is a European H930 21A, but I'm not aware of US998 21A. There may be an LS998 21A, but I don't keep up with Sprint firmware versions...
Go to Settings, About Phone, Software Info, Software version. Tell me what you see?
ChazzMatt said:
There is a European H930 21A, but I'm not aware of US998 21A. There may be an LS998 21A, but I don't keep up with Sprint firmware versions...
Go to Settings, About Phone, Software Info, Software version. Tell me what you see?
Click to expand...
Click to collapse
US99821a. I had assumed JWnSC's guide was going to revert this back to LS but it doesn't appear to have done so, but I have my LTE network restored. I've attached a screenshot of it. For what it's worth the phone's model number shows up as LS998 under the hardware info.
txag2011 said:
US99821a. I had assumed JWnSC's guide was going to revert this back to LS but it doesn't appear to have done so, but I have my LTE network restored. I've attached a screenshot of it. For what it's worth the phone's model number shows up as LS998 under the hardware info.
Click to expand...
Click to collapse
Then there is something really messed up. There's no US998 21A with May 2018 security update. That matches US998 20B.
Sent via open market LG US998 V30/V30+
ChazzMatt said:
Then there is something really messed up. There's no US998 21A with May 2018 security update. That matches US998 20B.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
I'm wondering if something got mislabeled in JWnSC's file then... The file I had flashed to restore LTE and sprint APN's was the sprint 21a (May security patch) linked in his main post on this thread:
https://forum.xda-developers.com/lg-v30/how-to/us998-to-ls998-sprint-lte-root-t3802310
I did notice the first time around I was rooting the phone I flashed the sprint 20b image first off, then when I got a notification there was an update available someone else told me to use the 21a zip which was right below the 20b. While I was running 20b both the model and software showed LS after flashing it. Is it possible this is merely a typo somewhere within the 21a zip file?
In any case, should I avoid using the 20d files I found posted by you and westwood24 and then trying to flash the modem bin for sprint LTE over?
The entire reason I brought this up is because I've been getting notifications that theres an update available now for the system. Since I'm rooted and TWRP'd and don't want to lose either of those I figured the only way I could get it was to come back here and find the update file and flash it.
EDIT: after doing some more reading on the sprint specific update that occurred at the same time as the update OP was mentioning, it turns out this update is named LS99822a. As far as I can tell, theres no KDZ or zip files for this specific update on xda, or anywhere else for that matter. So I guess I won't be touching this 20d update or flashing this 22a one whatsoever.
Source:
https://www.androidinfotech.com/2018/08/lg-v30-sprint-usa-ls998-august-2018-ota.html
ChazzMatt said:
Then there is something really messed up. There's no US998 21A with May 2018 security update. That matches US998 20B.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
It's normal maybe a type-o somewhere or result of flashing us988kdz
@txag2011
You can flash latest us998 and then flash modem and it will be fine the only thing is that sprint visual voicemail won't work right out the bag and sprint calling plus you won't be able to upgrade prl or profile that the only difference I see but you may or may not use other sprint stuff
If you want to run Sprint's latest and you don't need root you can always update
Last week I updated to Sprint's ls99822a as you can see on my screen shots(last page) Lost root and fastboot commands but bootloader stayed unlooked and I was able to downgrade back @ChazzMatt
When I downgrade I saw lgup checking for antirollback and it was all good
That was on sprint latest software security patch August 1
ricohz said:
It's normal maybe a type-o somewhere or result of flashing us988kdz
@txag2011
You can flash latest us998 and then flash modem and it will be fine the only thing is that sprint visual voicemail won't work right out the bag and sprint calling plus you won't be able to upgrade prl or profile that the only difference I see but you may or may not use other sprint stuff
If you want to run Sprint's latest and you don't need root you can always update
Last week I updated to Sprint's ls99822a as you can see on my screen shots(last page) Lost root and fastboot commands but bootloader stayed unlooked and I was able to downgrade back @ChazzMatt
When I downgrade I saw lgup checking for antirollback and it was all good
That was on sprint latest software security patch August 1
Click to expand...
Click to collapse
So aside for the sprint LTE bands and calling plus, theres zero difference between US99820d and LS99822a? If thats the case I might give that a shot. Still havent heard any confirmation if the forum post I linked to a few posts back was the correct update (it's from westwood24, titled US99820D(TWRP).zip) In addition to that I'm not sure how exactly I'd go about obtaining the modem file let alone flashing it. Is it particularly difficult?
What did you end up doing with yours once you downgraded away fro m22a? Did you end up trying to flash US20d over and patching the modem yourself or are you just staying with the 21a built JWnSC did?
txag2011 said:
So aside for the sprint LTE bands and calling plus, theres zero difference between US99820d and LS99822a? If thats the case I might give that a shot. Still havent heard any confirmation if the forum post I linked to a few posts back was the correct update (it's from westwood24, titled US99820D(TWRP).zip) In addition to that I'm not sure how exactly I'd go about obtaining the modem file let alone flashing it. Is it particularly difficult?
What did you end up doing with yours once you downgraded away fro m22a? Did you end up trying to flash US20d over and patching the modem yourself or are you just staying with the 21a built JWnSC did?
Click to expand...
Click to collapse
both and more ...
currently I have 4 nandriods backups I f__k around with ( US998d,Sprint 21a, AIS and Dotos )I also like trying out all aosp roms
Which os I run depends where I'm working at if I'm out where service is bad I use sprints for the calling plus feature other then that it depends on what mood I am
(Visual voicemail dosen't matter much to me if I got a lost call I can always check voicemail manualy)
I lguped us99820a then dirty flashed us99820d
ricohz said:
both and more ...
currently I have 4 nandriods backups I f__k around with ( US998d,Sprint 21a, AIS and Dotos )I also like trying out all aosp roms
Which os I run depends where I'm working at if I'm out where service is bad I use sprints for the calling plus feature other then that it depends on what mood I am
(Visual voicemail dosen't matter much to me if I got a lost call I can always check voicemail manualy)
I lguped us99820a then dirty flashed us99820d
Click to expand...
Click to collapse
Thats an impressive setup you have there. You must be pretty damn adept at this kind of thing.
So you just used LGup to put on chazzmatt's zip using the partition DL function and then... I'm sorry, still new to this, what exactly is dirty flashing? Is that flashing the 20d zip file under TWRP or also in lgup? and afterwards you flashed the sprint modem?
Good Day. My mom got me an LG V30 from Korea. today my phone got an security update and as soon as I updating my phone, i found out that my Lg v30 have an TWRP imstall and dont let me update my phone. im not so good with phone and I dont want my phone be broken if I do anything :'( please help how can I remove twrp amd have a stock phone.
Jhei2628 said:
Good Day. My mom got me an LG V30 from Korea. today my phone got an security update and as soon as I updating my phone, i found out that my Lg v30 have an TWRP imstall and dont let me update my phone. im not so good with phone and I dont want my phone be broken if I do anything :'( please help how can I remove twrp amd have a stock phone.
Click to expand...
Click to collapse
You can flash stock rom by using lg up and kdz. Make sure you use the correct kdz file for it.
Keep in mind, KDZ flash will erase your data, so be aware of that.
tech_infinity said:
You can flash stock rom by using lg up and kdz. Make sure you use the correct kdz file for it.
Click to expand...
Click to collapse
i dont have an pc for me to do that ..
is there a way that i can use twrp and install a recovery so that it will be replace by stock?
We need exact phone model and firmware currently (settings, system, about phone, software info, software version)--mine is us99820h
Jhei2628 said:
is there a way that i can use twrp and install a recovery so that it will be replace by stock?
Click to expand...
Click to collapse
Nope. I don't think so.
Jhei2628 said:
is there a way that i can use twrp and install a recovery so that it will be replace by stock?
Click to expand...
Click to collapse
Yep. If you can get some kind soul on here to extract the stock recovery and turn it into a flashable zip, then you can download it, boot to TWRP, flash it, and viola -- stock recovery.
It doesn't matter what model recovery is from -- they are all the same with the EXCEPTION of the H932. If you have an H932, you must use the H932 recovery. You won't brick your phone, but you will be flashing a KDZ if you ever want to take OTAs again. Also, if you don't have an H932, do not use the H932 recovery -- same outcome.
EDIT: if your phone is rooted, you will not be able to take OTAs (the hash check will fail). So, if it is rooted, you need to unroot it (install Magisk manager) before flashing the stock recovery and taking OTAs.
-- Brian
tech_infinity said:
Nope. I don't think so.
Click to expand...
Click to collapse
sad to hear that
runningnak3d said:
Yep. If you can get some kind soul on here to extract the stock recovery and turn it into a flashable zip, then you can download it, boot to TWRP, flash it, and viola -- stock recovery.
It doesn't matter what model recovery is from -- they are all the same with the EXCEPTION of the H932. If you have an H932, you must use the H932 recovery. You won't brick your phone, but you will be flashing a KDZ if you ever want to take OTAs again. Also, if you don't have an H932, do not use the H932 recovery -- same outcome.
EDIT: if your phone is rooted, you will not be able to take OTAs (the hash check will fail). So, if it is rooted, you need to unroot it (install Magisk manager) before flashing the stock recovery and taking OTAs.
-- Brian
Click to expand...
Click to collapse
hoping someone here would do that. my lg v30 model is LGM V300K. and my phone is not rooted. i just want clean and stock phone.
Jhei2628 said:
hoping someone here would do that. my lg v30 model is LGM V300K. and my phone is not rooted. i just want clean and stock phone.
Click to expand...
Click to collapse
Ironic you wish to remove TWRP from your phone when for several months that's what we would have given large sums of money to have. Finally in May 2018, the WTF exploit allowed us to do that. You can root your phone, since you have TWRP and install recent TWRP-flashable zip based on stock firmware.
But if you wish to return for full stock without TWRP custom recovery, you will need to use LGUP to flash stock KDZ. And yes that requires a PC.
ChazzMatt said:
Ironic you wish to remove TWRP from your phone when for several months that's what we would have given large sums of money to have. Finally in May 2018, the WTF exploit allowed us to do that. You can root your phone, since you have TWRP and install recent TWRP-flashable zip based on stock firmware.
But if you wish to return for full stock without TWRP custom recovery, you will need to use LGUP to flash stock KDZ. And yes that requires a PC.
Click to expand...
Click to collapse
may I ask if all the roms here in this forum for lg v30 can be installed to my phone? because mine is LG V30 LGM-V300k.
Jhei2628 said:
may I ask if all the roms here in this forum for lg v30 can be installed to my phone? because mine is LG V30 LGM-V300k.
Click to expand...
Click to collapse
I'll have to let one of the Korean users answer that. I'm not an expert on the Korean models. They have to do extra step to get TWRP, root and get radio back. So if your phone works and has TWRP then at over point in was rooted with Magisk.
Sent via open market LG US998 V30/V30+
ChazzMatt said:
I'll have to let one of the Korean users answer that. I'm not an expert on the Korean models. They have to do extra step to get TWRP, root and get radio back. So if your phone works and has TWRP then at over point in was rooted with Magisk.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
awww.
ChazzMatt said:
I'll have to let one of the Korean users answer that. I'm not an expert on the Korean models. They have to do extra step to get TWRP, root and get radio back. So if your phone works and has TWRP then at over point in was rooted with Magisk.
Sent via open market LG US998 V30/V30+
Click to expand...
Click to collapse
Please let me know if the roms here will work with korean variant lg v30.
Jhei2628 said:
Please let me know if the roms here will work with korean variant lg v30.
Click to expand...
Click to collapse
If you are going to keep TWRP then I won't bother, but if you want to go back to stock let me know and it just so happens I have that KDZ sitting in my archives so I don't even need to wait 40 years for lg-firmwares.com to download
Just ping me and I can make you a flashable zip that will take your phone back to stock without having to flash a KDZ.
Again, I am not going to bother right now since it sounds like you may actually want to keep your phone as is.
-- Brian
runningnak3d said:
If you are going to keep TWRP then I won't bother, but if you want to go back to stock let me know and it just so happens I have that KDZ sitting in my archives so I don't even need to wait 40 years for lg-firmwares.com to download
Just ping me and I can make you a flashable zip that will take your phone back to stock without having to flash a KDZ.
Again, I am not going to bother right now since it sounds like you may actually want to keep your phone as is.
-- Brian
Click to expand...
Click to collapse
i still want a clean and stock phone and hearing that to someone makes me happy ^^ thank you so much good sir!
waiting for good sir to make the flashable file for us korean variant lg v30 users
can I ask if i can make a kdz file to a zip file so that i can flash it on twrp? and how if i can.
Jhei2628 said:
waiting for good sir to make the flashable file for us korean variant lg v30 users
Click to expand...
Click to collapse
Sorry -- I just haven't had the time -- and it doesn't even take that long. I have a few minutes right now, let me see if I can throw something together for you.
Keep in mind, that I have no way of testing it. It won't brick your phone, but I might have a typo and it will just fail (I have a tendency to have typos ;P ).
If that happens, you will just have to tell me where it is failing, and I will fix it. *crosses fingers that I have no typos*
EDIT: I am not going to do something half assed. I am grabbing the latest firmware available on lg-firmwares (V300K21r) and going to make a FULL zip.
As long as you don't wipe data, even if you are on a lower version, you should be able to flash it and keep your data. I will flash all the partitions that usually get flashed when using a KDZ.
I should have it up in about an hour.....
EDIT2: It is up -- https://www.androidfilehost.com/?w=files&flid=286970
Download and flash that in TWRP. Wipe cache / dalvik. Reboot and you will be fully stock. Again, you should only lose your data if you factory reset or wipe / format data.
Enjoy,
-- Brian
My V30 doesn't seem to enjoy being flashed with Android 10, as it bootloops no matter what ROM I decide to use (Lineage, Havoc, Pixel Experience), and now I'm thoroughly stumped on what to do, as I can't find a fix for this issue. My phones bootloader is unlocked via Frankenstein, and I've used the method of flashing over 10d with 30b and having no luck. I've recently come across a post that said to attempt trying 20b to 30b, which I'll try as a last effort to get this working, but I'd still appreciate advice on what to do. Whether it be this last method, a modification of it, or just something else entirely, I'd be forever grateful for the help.
If you need more information, feel free to ask and I'll provide to the best of my ability.
AkajiWins said:
My V30 doesn't seem to enjoy being flashed with Android 10, as it bootloops no matter what ROM I decide to use (Lineage, Havoc, Pixel Experience), and now I'm thoroughly stumped on what to do, as I can't find a fix for this issue. My phones bootloader is unlocked via Frankenstein.
Click to expand...
Click to collapse
So you Frankensteined to US998, then unlocked the bootloader via WTF exploit. What variant did you start with?
AkajiWins said:
I've used the method of flashing over 10d (Nougat/Android 7) with 30b (Pie/Android 9) and having no luck. I've recently come across a post that said to attempt trying 20b (early Oreo) to 30b, which I'll try as a last effort to get this working, but I'd still appreciate advice on what to do. Whether it be this last method, a modification of it, or just something else entirely, I'd be forever grateful for the help.
If you need more information, feel free to ask and I'll provide to the best of my ability.
Click to expand...
Click to collapse
1) You need stock Android 9 (Pie) as a base before flashing any LOS-17 (Android 10) ROMs. But you seem to know that.
There are several methods to update to to Pie US998. See US998 Pie KDZ thread, post #2 and FOUR MORE WORKAROUND in post #6.
2) What variant did you start with? If you have former AT&T H931 or Canada H933, you'll need to do additional prep steps before installing any LOS custom ROMs.
Of course, you've read the V30 custom ROMs FAQ -- before you even unlocked your bootloader -- right? It tells all this and conveys other important information. This FAQ is prominently linked in the WTF instructions, with suggestion to read first, then come come back to finish unlocking bootloader...
V30 CUSTOM ROMS FAQ
https://forum.xda-developers.com/showpost.php?p=79459374&postcount=2
ChazzMatt said:
So you Frankensteined to US998, then unlocked the bootloader via WTF exploit. What variant did you start with?
1) You need stock Android 9 (Pie) as a base before flashing any LOS-17 (Android 10) ROMs. But you seem to know that.
There are several methods to update to to Pie US998. See US998 Pie KDZ thread, post #2 and FOUR MORE WORKAROUND in post #6.
2) What variant did you start with? If you have former AT&T H931 or Canada H933, you'll need to do additional prep steps before installing any LOS custom ROMs.
Of course, you've read the V30 custom ROMs FAQ -- before you even unlocked your bootloader -- right? It tells all this and conveys other important information. This FAQ is prominently linked in the WTF instructions, with suggestion to read first, then come come back to finish unlocking bootloader...
V30 CUSTOM ROMS FAQ
https://forum.xda-developers.com/showpost.php?p=79459374&postcount=2
Click to expand...
Click to collapse
Yes, I did read through the FAQ before and after unlocking. My variant is the US998U/V30+, which is why I'm a bit confused. The US998 and US998U are identical, aside from storage capacity, right?
I was following one of the guides you posted that stated:
ChazzMatt said:
So for installing the KDZ, I suggest FIRST downgrading to US998 Nougat 10d via Partition DL mode, Master Reset, then Refurbish to US998 Pie KDZ. Here are the steps...
If you have problems flashing this US998 Pie 30b KDZ, see post #6 for FOUR more workaround methods proven to work for some people.
You should probably use this method (DOWNGRADE to NOUGAT first) even if you have TWRP installed. Then reinstall TWRP again after successfully updating to Pie.
KDZ INSTALLATION INSTRUCTIONS
0) Turn off phone, manually go into Download mode before opening Dev Patched LGUP.
1) Using Dev Patched LGUP from THIS thread, flash US998 10d Nougat KDZ via Dev Patched LGUP using Partition DL mode. Select ALL partitions.
2) Master Reset. This is NOT Factory Reset.
3) Boot up to Welcome screen. Turn off phone, manually go back into Download mode.
4) Flash US998 30b Pie KDZ via Dev Patched LGUP using Refurbish mode.
5) Master Reset. This is NOT Factory Reset.
If you did not unlock your bootloader before doing this, then you bootloader is still locked -- because that's what you want. Finished. Set up your phone.
If you had unlocked bootloader before doing all this, you will still have it. Boot to ADB, and PLEASE follow these instructions for re-install TWRP and root!!
Click to expand...
Click to collapse
So that's what I had done a few days ago, but that's also when my problems arose. I was on the TWRP flashable kdz of 30b for a month or two now after Frankensteining it, but wanted to try out some 10 ROMS, but attempting to flash those ROMs was when I started having issues. Flashing the stock US998 kdzs didn't cause issues, the 30b zip I had been running daily wasn't weird, and the md5s for all the files downloaded matched what was provided as correct. That's why I'm a bit stumped, since I believe I followed all the guides I've looked at to make things work correctly, but this one part is giving me a hard time.
I will try those other four methods, since I don't believe to have seen them yet. I will provide an edit to this post after trying them, thank you.
AkajiWins said:
Yes, I did read through the FAQ before and after unlocking. My variant is the US998U/V30+, which is why I'm a bit confused. The US998 and US998U are identical, aside from storage capacity, right?
I was following one of the guides you posted that stated:
So that's what I had done a few days ago, but that's also when my problems arose. I was on the TWRP flashable kdz of 30b for a month or two now after Frankensteining it, but wanted to try out some 10 ROMS, but attempting to flash those ROMs was when I started having issues. Flashing the stock US998 kdzs didn't cause issues, the 30b zip I had been running daily wasn't weird, and the md5s for all the files downloaded matched what was provided as correct. That's why I'm a bit stumped, since I believe I followed all the guides I've looked at to make things work correctly, but this one part is giving me a hard time.
I will try those other four methods, since I don't believe to have seen them yet. I will provide an edit to this post after trying them, thank you.
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If you Frankenstein'ed, I'm asking what your original variant is. Frankenstein is to convert North American variant to another, also called cross flashing.
Whereas " WTF" is bootloader unlock and installing TWRP. Some North American variants have to Frankenstein to US998 for fastboot flash commands. Then they can use WTF INSTRUCTIONS. But Frankenstein itself is not bootloader unlock, TWRP and root. It's just fully converting one variant to another. It ONLY works with the North American variants, except for T-Mobile H932.
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OK, so you were on LG US998 30b stock Pie successfully.
Put your IMEI into this database and tell me what it says? Don't post your IMEI here, publicly. Just curious what variant it says you have.
https://www.imeipro.info/
If you have V30+ US998 , then it's either native US998U or was formerly LS998U and converted to US998 by you or previous owner if you bought it used.
Neither AT&T H931 not Canada H933 have a native V30+, but I've seen H933 V30+ which were Frankenstein'ed.
ChazzMatt said:
If you Frankenstein'ed, I'm asking what your original variant is. Frankenstein is to convert North American variant to another, also called cross flashing.
Whereas " WTF" is bootloader unlock and installing TWRP. Some North American variants have to Frankenstein to US998 for fastboot flash commands. Then they can use WTF INSTRUCTIONS. But Frankenstein itself is not bootloader unlock, TWRP and root. It's just fully converting one variant to another. It ONLY works with the North American variants, except for T-Mobile H932.
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OK, so you were on LG US998 30b stock Pie successfully.
Put your IMEI into this database and tell me what it says? Don't post your IMEI here, publicly. Just curious what variant it says you have.
https://www.imeipro.info/
If you have V30+ US998 , then it's either native US998U or was formerly LS998U and converted to US998 by you or previous owner if you bought it used.
Neither AT&T H931 not Canada H933 have a native V30+, but I've seen H933 V30+ which were Frankenstein'ed.
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Ahh, alrighty, I understand the difference now. So I had Frankenstein'ed to unlock my bootloader, then unlocked it with "WTF".
Also, the IMEI checker reported my device as a US998U V30+, which was what I bought it as used.
AkajiWins said:
Ahh, alrighty, I understand the difference now. So I had Frankenstein'ed to unlock my bootloader, then unlocked it with "WTF".
Also, the IMEI checker reported my device as a US998U V30+, which was what I bought it as used.
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Merely downgrading to earlier firmware is not Frankenstein. Frankenstein is fully converting one variant to another. It takes on those different LTE bands, etc. Cross flashing AT&T H931 to US998 gives it CDMA bands the H931 doesn't have, different LTE bands, fastboot flash commands. Same with Frankenstein'ed H933. See screenshot.
If you already had US998 firmware and your IMEI check says it's a native US998U (V30+), then you didn't Frankenstein to US998. You already had US998 with fastboot flash commands. You just used LGUP to downgrade to early US998 Oreo for WTF bootloader unlock, TWRP installation and root and/or maybe you went to US998 Nougat at one point. But you were already US998. You weren't on LS998, AS998, H933, H931, VS996 firmware, at any point in time.
Why you are bootlooping on LOS-17 Android 10 ROMs, I don't know. You don't have former H931 or H933, and you said you were on US998 30b (Pie) when you tried to flash those ROMs.
ChazzMatt said:
Merely downgrading to earlier firmware is not Frankenstein. Frankenstein is fully converting one variant to another. It takes on those different LTE bands, etc. Cross flashing AT&T H931 to US998 gives it CDMA bands the H931 doesn't have, different LTE bands, fastboot flash commands. Same with Frankenstein'ed H933. See screenshot.
If you already had US998 firmware and your IMEI check says it's a native US998U (V30+), then you didn't Frankenstein. You already had US998 with fastboot flash commands. You just used LGUP to downgrade to early Oreo for WTF bootloader unlock, TWRP installation and root.
Why you are bootlooping on LOS-17 Android 10 ROMs, I don't know. You don't have former H931 or H933, and you said you were on US998 30b (Pie) when you tried to flash those ROMs.
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Should I attempt to Frankenstein to a different variant then come back? I was going to try to use the fourth method that you linked to before to try to put myself on an actual US998.
AkajiWins said:
Should I attempt to Frankenstein to a different variant then come back? I was going to try to use the fourth method that you linked to before to try to put myself on an actual US998.
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The problem with Method #4 is you are willingly converting to Canada H933. While that might get you back to US998 30b, it will then give you more difficulty in flashing LOS ROMs. You have to go through the tedious extra steps of former H931/H933.
ChazzMatt said:
The problem with Method #4 is you are willingly converting to Canada H933. While that might get you back to US998 30b, it will then give you more difficulty in flashing LOS ROMs. You have to go through the tedious extra steps of former H931/H933.
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As someone who doesn't necessarily mind the extra preparation, would you recommend it for someone in my predicament? And is there any log file I can provide to hopefully help give more insight?
AkajiWins said:
As someone who doesn't necessarily mind the extra preparation, would you recommend it for someone in my predicament?
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That's your decision. It should get you back to 30b. After that, for flashing ROMs, you'll have to follow the other instructions for H933 (since you will have converted to that, then converted back).
ChazzMatt said:
That's your decision. It should get you back to 30b. After that, for flashing ROMs, you'll have to follow the other instructions for H933 (since you will have converted to that, then converted back).
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Though if I am to do that, would I still keep the bands I have at the moment or would I lose them when converting? Would I have to refflash my modem partition(s)?
AkajiWins said:
Though if I am to do that, would I still keep the bands I have at the moment or would I lose them when converting? Would I have to refflash my modem partition(s)?
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The method is flash to H933 Nougat I believe, then flash back to US998. You don't stay on H933. You flash everything via LGUP Partition DL mode.
ChazzMatt said:
The method is flash to H933 Nougat I believe, then flash back to US998. You don't stay on H933.
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Ah alright, I'll try that. So just to clarify, I'd flash over to an H933, then come back to a US998, and then install the 30b kdz, and that should hopefully fix my issues?
AkajiWins said:
Ah alright, I'll try that. So just to clarify, I'd flash over to an H933, then come back to a US998, and then install the 30b kdz, and that should hopefully fix my issues?
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Yes. But read Method 4 carefully. Involves timing and buttons.
ChazzMatt said:
Yes. But read Method 4 carefully. Involves timing and buttons.
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LGUP doesn't seem to recognize my phone as a H933 after flashing and rebooting back to download mode, but the phone seems to know it's one when I flash and it says what build it's on and what's being flashed.
EDIT 1: Reinstalling LGUP fixed that particular issue, so I'll have to restart the procedure just so it's as unobstructed as possible.
EDIT 2: Never mind, still the same strange occurrence that happened before. I'll try to move on and see if it'll still work.
Okay so, after a lot of trouble, everything seems to work. I ran Jett's Wifi Backup fix to fix the broken wifi on Havoc, along with the Haumea kernel, and now everything seems stable.
Thank you for your help!!
I guess I just had to keep doing the procedure until it stuck
Hi guys, I'm a bit lost too.
My phone is a V300S that is Frankensteined to US998 with V300S modem, bootloader unlocked and installed TWRP.
However i also faced the problem of installing Android 10 based roms causing bootloops, I've seen on the Custom ROMs page that i needed the lastest stock Pie blobs, which is what i have currently (30b)
Is this variant using a different way for custom ROMs? Or did i do something entirely wrong on Frankensteining?
Edit: silly me recently saw that i need to convert my V300S to H930, not US998... I guess I'll try that first
Update: well everything went south, now i can't go back to US99830b anymore, stuck at V300s Oreo. I guess I'll start everything over again, but if there are things or procedures i needed to know, please, any help will do