Download mode not communicating - LG V30 Questions & Answers

I got an odd problem going on here..... So i used lgup to update to a newer firmware worked fine booted fine so decide okay im ready to flash twrp & do so with no problem. got all the encryption stuff out of the way & was ready to flash a new rom so i do it. I reboot my device & ive tried this with 2 roms they both bootloop & ontop of that i flashed the zip version of the kdz us998 everything flashed fine. Reboot. Same thing bootloop so now i say okay im just gunna go back to stock but now the firmware update or download mode will not connect no matter what i do & i had just used it with no problem i think the zipped kdz flashed something that is making it unable to communicate. I cant see any way out of this im bricked but i got recovery theres gotta be something i can do. appreciate any kind of help thanks

Even though you wrote a lot, regrettably you give very little useful information. And you have almost one long run-on sentence. Makes it hard to read.
First, what variant do you have? Do you have a US998? Or did you previously have another version -- like AT&T H931 or Canada H933, which you converted to US998? As you know, you can't just flash LOS custom ROMs to those two variants without extra prep steps. Read the V30 custom ROMs FAQ -- which you were told to read when you used the WTF instructions.
Were you trying to flash LOS-16 ROMs or LOS-17 based ROMs? You need to be on last stock Oreo firmware for LOS-16 and on stock Pie firmware for LOS-17 ROMs. You said you flashed "newer" KDZ firmware, but don't say WHAT you flashed.
Nor do you say which ROMs you tried to flash.
Later, you say you flashed zip version of US998 firmware. WHAT zip version did you flash? 20d, 20e, 20f, 20g, 20h, 30b?
Flashing US998 Oreo 20e zip will give you download back. Boot into TWRP and flash that. But you need Magisk 18.x or you may bootloop. If you have later version, uninstall Magisk in TWRP and reinstall 18.x.
And answer all the questions.
jessejamesd2i said:
I got an odd problem going on here..... So i used lgup to update to a newer firmware worked fine booted fine so decide okay im ready to flash twrp & do so with no problem. got all the encryption stuff out of the way & was ready to flash a new rom so i do it. I reboot my device & ive tried this with 2 roms they both bootloop & ontop of that i flashed the zip version of the kdz us998 everything flashed fine. Reboot. Same thing bootloop so now i say okay im just gunna go back to stock but now the firmware update or download mode will not connect no matter what i do & i had just used it with no problem i think the zipped kdz flashed something that is making it unable to communicate. I cant see any way out of this im bricked but i got recovery theres gotta be something i can do. appreciate any kind of help thanks
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Click to collapse

Related

Weird issue

The 1st time i root my device v300s korean variant i was able to flash los and aosp rom by kdz to us998 all of aosp and los base rom boot without any problem until i flash back to stock yesterday i mean kdz back to v300s with stock recovery to check something after that i re root back to us998 and flash twrp with same step like i do 1st time and guess what all los and aosp base rom did not pass boot animation.
And today whole day i was flashing kdz back and forth and try to remember what i did 1st time root but no luck still wont boot.
But when i flash kdz to h930 it boot fine i mean all the aosp and los base rom but when i kdz back to us998 still no luck i spend the entire day doing it still no luck.
The reason i must kdz to us998 is because korean variant only can get signal in us998.
I read alot of thread most people except h930 cant get pass boot animation. I really have no clue why no problem for me in the 1st place but now im clueless.
If anyone can help me greatly appreciated.

Best way to update to a newer firmware

Hi all,
I used the Frankenstein guide thread to root my phone successfully going from Nougat to Oreo, however it says the Android security patch level is May 1, 2018. I'd like to update it to whatever is the latest software version available.
It currently has US99820b_03_0524.kdz. I searched online and found US99820h_00_0318.kdz which seems to be the most up to date. Can I just use LGUP and choose Upgrade, and apply this? Will I have to re-setup everything again after it installs? I took a full backup using TWRP in case anything goes wrong, but I'm just looking for some guidance on how to do this properly. My phone is running fine, so maybe I shouldn't even bother, but I figured I'd try.
Thanks for any help!
V30ish said:
Hi all,
I used the Frankenstein guide thread to root my phone successfully going from Nougat to Oreo, however it says the Android security patch level is May 1, 2018. I'd like to update it to whatever is the latest software version available.
It currently has US99820b_03_0524.kdz. I searched online and found US99820h_00_0318.kdz which seems to be the most up to date. Can I just use LGUP and choose Upgrade, and apply this? Will I have to re-setup everything again after it installs? I took a full backup using TWRP in case anything goes wrong, but I'm just looking for some guidance on how to do this properly. My phone is running fine, so maybe I shouldn't even bother, but I figured I'd try.
Thanks for any help!
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Click to collapse
The WTF INSTRUCTIONS answer this question. You didn't read to the end? Go back and read Section 9 of the WTF INSTRUCTIONS, please..
No, if your phone is rooted and you have TWRP custom recovery, you don't need to use LGUP to flash stock KDZ. Or else you will wipe out TWRP custom recovery.
Instead use TWRP flashable zips made from stock firmware KDZ. They are available in the KDZ threads, next to the KDZ. Go to the US998 Oreo KDZ thread and look for 20H TWRP-flashable zip.
You flash it like a ROM and reflash Magisk. There's other stuff you need to read also, but it's already written out.
ChazzMatt said:
The WTF INSTRUCTIONS answer this question. You didn't read to the end? Go back and read Section 9 of the WTF INSTRUCTIONS, please..
No, if your phone is rooted and you have TWRP custom recovery, you don't need to use LGUP to flash stock KDZ. Or else you will wipe out TWRP custom recovery.
Instead use TWRP flashable zips made from stock firmware KDZ. They are available in the KDZ threads, next to the KDZ. Go to the US998 Oreo KDZ thread and look for 20H TWRP-flashable zip.
You flash it like a ROM and reflash Magisk. There's other stuff you need to read also, but it's already written out.
Click to expand...
Click to collapse
Thanks @ChazzMatt for this as it was exactly what I was looking for. The WTF thread was so large I felt overwhelmed. I should have read it further. I'm now running 20H thanks to you.

[Q] Download Mode issues

So, got my V30 here, Frankensteined H931 to US998, never had basically any issues with it so far. Decided to attempt to install the TWRP flashable US998 30b from John Fawkes and that's when all hell broke loose. But I won't get into all that, here's the primary issue now:
I get Download Mode when I power the V30 off and hold Volume Up + insert USB cable (and I've done this with multiple USB cables as well as multiple USB ports), but I never get a connection to the computer anymore in that mode. Nothing, no connects at all, no sounds to indicate a connection, while the V30 shows it's in Download Mode and is waiting for a connection.
If I power it off back to TWRP (3.2.3.7, just flashed earlier as instructed because of the Pie attempt), I get all the proper connections, sounds, etc, can copy files over to the internal as well as external storage, no issues.
Normally when most people say they can't get into Download Mode it's some issue where the device won't power on into that mode when the USB cable is attached - that's not the case here as stated: it powers on and says Download Mode and waiting for a connection, but regardless of any USB cable or port there's never a connection.
I'm suspecting it's a software issue since obviously on a reboot into TWRP the USB port works exactly as expected.
Any suggestions? Because of this I'm unable to do a clean proper US998 20h KDZ flash or the 30b KDZ flash either so thankfully I did have a backup of my previous 20h Oreo install. Of course, because it's all pooched now that is effectively useless because of course of the encryption and upon restoring the backup it won't boot because of the password crap and forces me to format DATA and start all over again.
/me hates encryption when this BS happens, seriously...
So, any tips or tricks that might get me back to a working connection with Download Mode? Flashing a particular partition or something? I'm basically about to redo it with a clean 20h TWRP flashable here in a bit, not left with many other options now.
Anything is appreciated, thanks...
1) Try flashing US998 20e TWRP-FLASHABLE zip. See if that gets you download mode back.
If not, then
2) Try different LGUP.
______
After you get Download mode back, try these steps. Helpful people been testing this out...
For users with TWRP who get stuck on LG logo.
* Flash Verizon VS996 Nougat Partition DL -- EXCEPT for Recovery partitions, to keep TWRP. Do NOT choose all partitions!
You will probably lose download mode, but you've prepped your phone, corrected any partitions. (This is not just for Verizon users, this is for all North American variants -- except for T-Mobile H932.)
* Flash US99820e TWRP flashable zip to get back Download mode.
* Then REFURBISH to US998 20h KDZ.
* Now flash TWRP recovery again and then flash John's zip US99830b.
"Phone booted immediately on pie and everything is working great."
---------- Post added at 01:01 AM ---------- Previous post was at 12:58 AM ----------
rmgibbs1861 said:
ATT 931 on US998. Hangs on the LG Logo for PIE. Will there. be another release for US998 Pie? I do miss Anxious!
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See Instructions above. Going to write something up in the US998 thread.
Yah, the 20e thing got download mode working normally meaning when the device went into that mode I'd get the traditional notification from Windows that a USB device was now attached - that's what was missing previously for whatever reason.
So I flashed 20h clean with the dev patched LGUP, no issues with Partition DL because I wanted it truly clean without anything that shouldn't be there, and that meant the factory recovery partition as well.
Then I attempted to flash the 30b KDZ, no joy, just stuck at the LG logo and I've wasted enough time on this now so, I'll just wait till some other point and maybe give it a shot in the near future.
Kinda sucks starting over totally clean but hey, this phone has worked near-perfectly since I got it in May so it'll be fine with a clean fresh start. I'm not even going to install Magisk this time, I can't think of a single reason I even need root anymore but if I do I'll worry about that a later time.
br0adband said:
Yah, the 20e thing got download mode working normally meaning when the device went into that mode I'd get the traditional notification from Windows that a USB device was now attached - that's what was missing previously for whatever reason.
So I flashed 20h clean with the dev patched LGUP, no issues with Partition DL because I wanted it truly clean without anything that shouldn't be there, and that meant the factory recovery partition as well.
Then I attempted to flash the 30b KDZ, no joy, just stuck at the LG logo and I've wasted enough time on this now so, I'll just wait till some other point and maybe give it a shot in the near future.
Kinda sucks starting over totally clean but hey, this phone has worked near-perfectly since I got it in May so it'll be fine with a clean fresh start. I'm not even going to install Magisk this time, I can't think of a single reason I even need root anymore but if I do I'll worry about that a later time.
Click to expand...
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You need to do the VS996 Nougat Partition DL step. It preps the phone.
This is what you need to do:
I have all the steps above. The first 20e flash was just to get Download mode back.
ChazzMatt said:
After you get Download mode back, try these steps. Helpful people been testing this out...
For users with TWRP who get stuck on LG logo.
* Flash Verizon VS996 Nougat Partition DL -- EXCEPT for Recovery partitions, to keep TWRP. Do NOT choose all partitions!
You will probably lose download mode, but you've prepped your phone, corrected any partitions. (This is not just for Verizon users, this is for all North American variants -- except for T-Mobile H932.)
* Flash US99820e TWRP flashable zip to get back Download mode.
* Then REFURBISH to US998 20h KDZ.
* Now flash TWRP recovery again and then flash John's zip US99830b.
"Phone booted immediately on pie and everything is working great."
Click to expand...
Click to collapse
Let me start firstly by saying, thank you ChazzMatt! V30 owners around the globe are incredibly fortunate to have your dedicated write-ups and support for these terrific phones. FWIW, I'm seriously impressed with the level of knowledge and your willingness to deep dive issues with folks... thanks again!
Getting to the topic however; I have the identical issue occurring with my LS998U (V30+) that I just went through the unlock process with yesterday. This morning I TWRP flashed the VS99630c ROM and everything worked A-OK except download mode. Exact same symptoms as br0adband is describing - phone appears to enter download mode as normal (though the initial "LG V30 ThinQ" boot screen appears to have replaced the bootloader warning screen?) but is not initiating the USB port for a connection at all.
Connections are established and work normally in TWRP and when booted into the OS so there appears to be something fundamentally wrong with Pie or the flash method.
I'm 99% confident it's not a PC side issue as there isn't even a connection for LGUP or drivers to fault out on.. I also tried my other US998 phone which is on dotOS and everything worked normally.
I'm about to try the TWRP flashable 20e per ChazzMatt's suggestion and will report back if I have success (or not).
Windza said:
Let me start firstly by saying, thank you ChazzMatt! V30 owners around the globe are incredibly fortunate to have your dedicated write-ups and support for these terrific phones. FWIW, I'm seriously impressed with the level of knowledge and your willingness to deep dive issues with folks... thanks again!
Click to expand...
Click to collapse
You're welcome!
Windza said:
This morning I TWRP flashed the VS99630c ROM and everything worked A-OK except download mode. Exact same symptoms as br0adband is describing - phone appears to enter download mode as normal (though the initial "LG V30 ThinQ" boot screen appears to have replaced the bootloader warning screen?) bu
I'm about to try the TWRP flashable 20e per ChazzMatt's suggestion and will report back if I have success (or not).
Click to expand...
Click to collapse
VS996 firmware doesn't have bootloader unlocked warning. Verizon never thought it would ever be unlocked.
While flashing 20e should give you download mode back, to me or seems both of you are sort of missing the point of the preliminary VS996 Nougat Partition DL flash (while omitting the Recovery partitions to keep TWRP)
Maybe in your case you don't need it -- since you made it to the other side of Pie, but that Nougat flash fixes any Partition problems. Just be sure to keep TWRP during that.
You may temporarily lose download mode again
Then TWRP-flashable zip US998 20e fix that.
Then REFURBISH to US998 20h. You'll temporarily lose TWRP at that point.
Re-Install TWRP and the three root files.
Then flash US998 30b TWRP-flashable zip.
ChazzMatt said:
While flashing 20e should give you download mode back, to me or seems both of you are sort of missing the point of the preliminary VS996 Nougat Partition DL flash (while omitting the Recovery partitions to keep TWRP)
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While my "missing the point" is entirely possible ChazzMatt, I was under the impression that I was already AT the preliminary Nougat step after having just stepped through the Frankenstein and unlock methods?
My progression through those steps was simply;
Frankenstein per your post here; https://forum.xda-developers.com/lg...ssflashing-t3780969/post76510671#post76510671
Unlock the bootloader, install TWRP et. al. per your directions here ;https://forum.xda-developers.com/showpost.php?p=76584629&postcount=193
Upon completing these steps, Nougat is already installed at which point I figured I was ready to flash VS99630c. What am I missing here... should I have reflashed Nougat?
I didn't have any issues like others are reporting with the upgrade to 30c (TWRP flashed it flawlessly and it booted right up).
It wasn't until I decided I'm not ready for Verizon Pie (tastes gross) and went to step back to US99820h that I realised Download Mode was broken.
Is all of this not just a case of Download Mode being broken in 30c for everyone?
ChazzMatt said:
Then TWRP-flashable zip US998 20e fix that.
.
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Yup - just as you said. 20e restored Download Mode.
ChazzMatt said:
Then flash US998 30b TWRP-flashable zip.
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Click to collapse
Does Download Mode work for anyone after this step or is TWRP back to a 20 series ROM the only way back to a working LGUP?
Sorry if I'm only confusing things more but I figure I'm not the only one tripping up on this... once I understand it better, I promise I'll step in and help educate other folk
It really is true about ChazzMatt's willingness to help around here.
What I never could understand is why some users, after receiving help AND successfully using it to fix their phones, don't even bother saying thank you. I'll happily spend my daily Thanks quota on helpful posts, even if they have no relevance for me at all. And I see Chazz do the same, every day. Others too, of course. But it seems some people feel being thankful is beneath them. Or something... I just don't understand it.
</rant>
Windza said:
While my "missing the point" is entirely possible ChazzMatt, I was under the impression that I was already AT the preliminary Nougat step after having just stepped through the Frankenstein and unlock methods?
My progression through those steps was simply;
Frankenstein per your post here; https://forum.xda-developers.com/lg...ssflashing-t3780969/post76510671#post76510671
Unlock the bootloader, install TWRP et. al. per your directions here ;https://forum.xda-developers.com/showpost.php?p=76584629&postcount=193
Upon completing these steps, Nougat is already installed at which point I figured I was ready to flash VS99630c. What am I missing here... should I have reflashed Nougat?
I didn't have any issues like others are reporting with the upgrade to 30c (TWRP flashed it flawlessly and it booted right up).
It wasn't until I decided I'm not ready for Verizon Pie (tastes gross) and went to step back to US99820h that I realised Download Mode was broken.
Is all of this not just a case of Download Mode being broken in 30c for everyone?
Click to expand...
Click to collapse
No, download mode isn't broken for everyone. Most people flash to Pie with no issues and download mode still works. It's when reverting to US998 Download mode seems to go away for a number of poeple (not sure how many and may depend on the LGUP used)
_______
OK, if all you wanted was for Download mode to be restored and you had no problems getting to Pie before that, then ignore what I said.
I thought you were trying to get to Pie and couldn't. In that case the workaround involves flashing Verizon VS996 Nougat -- NOT US998 Nougat like in Frankenstein -- via Partition DL mode except for Recovery partitions. That's a necessary prep stage for Pie. Both people in this thread weren't doing that. OK, so you had good reason. :silly:
THEN going to US998 20e via TWRP flashable zip, which restores Download mode. But if the goal was to get to Pie (yours wasn't) flashing 20e to get Download mode was also step zero. It was also necessary to restore Download mode so you could then flash VS996 Nougat via Partition DL mode (except for Recovery), to then flash back US998 20e TWRP flashable zip AGAIN, to then REFURBISH to US998 20h.
The VS996 Nougat part is important for those people hitting the LG logo wall.
ChazzMatt said:
No, download mode isn't broken for everyone. Most people flash to Pie with no issues and download mode still works. It's when reverting to US998 Download mode seems to go away for a number of poeple (not sure how many and may depend on the LGUP used)
Click to expand...
Click to collapse
This is good news... thanks for confirming!
I've likely done a few hundred ROM flashes and plenty of roots/unlocks in the past 15-20yrs and this was the first time I had a genuine "Oh crap" moment where a low level mode like Download Mode truly failed.
I was also having trouble getting back into TWRP (Noxx PM refused to work on 30c) which fostered a rapidly growing concern that without TWRP and Download Mode, I was effectively bricked (or at least in for a few hours of work to find a resolution).
I breathed a sigh of relief when attempting a Master Reset led me back to TWRP... I still had options!
Anyhow, it's probably fitting for me to exit this thread on the same subject I entered on by saying thank you again for the information share and willingness to help out :good:
Cheers!
ChazzMatt said:
No, download mode isn't broken for everyone. Most people flash to Pie with no issues and download mode still works. It's when reverting to US998 Download mode seems to go away for a number of poeple (not sure how many and may depend on the LGUP used)
_______
OK, if all you wanted was for Download mode to be restored and you had no problems getting to Pie before that, then ignore what I said.
I thought you were trying to get to Pie and couldn't. In that case the workaround involves flashing Verizon VS996 Nougat -- NOT US998 Nougat like in Frankenstein -- via Partition DL mode except for Recovery partitions. That's a necessary prep stage for Pie. Both people in this thread weren't doing that. OK, so you had good reason. :silly:
THEN going to US998 20e via TWRP flashable zip, which restores Download mode. But if the goal was to get to Pie (yours wasn't) flashing 20e to get Download mode was also step zero. It was also necessary to restore Download mode so you could then flash VS996 Nougat via Partition DL mode (except for Recovery), to then flash back US998 20e TWRP flashable zip AGAIN, to then REFURBISH to US998 20h.
The VS996 Nougat part is important for those people hitting the LG logo wall.
Click to expand...
Click to collapse
I lost download mode and TWRP for some reason and all I have is system recovery and nothing works in it for me . Is there anything I can do now? All I see is MTP android device.
KDZ 99820a
Hello i wanna thank all of you guys for the amazing support on this device, he LG v30 is an amazing phone just bought a US99830B , downgraded it with LGUP to oreo, unlocked bootloader in oreo and installed TWRP downloaded 99830B flasheable zip and flashed it , then i waned to try lineage 17 and flashed it in TWRP clean install booted up in android 10 but noticed lots of bugs and no WIFI, flashed modem for oreo in TWRP wifi came back up but wanted to go back to PIE restored from a backup that performed for PIE and got botloop maybe because of the incompatible modem, tried download mode, no USB activity back to TWRP restored lineage OS and im back in the system, i took your advice to flash 99820b in TWRP my download mode is back and im on oreo, my question is if i KDZ 99830B from 99820b will download mode still work even tho it doesn't when i flash stock 99830b download mode gets lost, i dont want to flash the KDZ and end up with no download mode and no TWRP and have a hard brick
Update : I have KDZ 99820a using LGUP and locked bootloader I'm back to stock is there any issues if I update to the 99830b which is the original software that the phone came with? Can I perform that update via KDZ?
SOU55 said:
Hello i wanna thank all of you guys for the amazing support on this device, he LG v30 is an amazing phone just bought a US99830B , downgraded it with LGUP to oreo, unlocked bootloader in oreo and installed TWRP downloaded 99830B flasheable zip and flashed it , then i waned to try lineage 17 and flashed it in TWRP clean install booted up in android 10 but noticed lots of bugs and no WIFI, flashed modem for oreo in TWRP wifi came back up but wanted to go back to PIE restored from a backup that performed for PIE and got botloop maybe because of the incompatible modem, tried download mode, no USB activity back to TWRP restored lineage OS and im back in the system, i took your advice to flash 99820b in TWRP my download mode is back and im on oreo, my question is if i KDZ 99830B from 99820b will download mode still work even tho it doesn't when i flash stock 99830b download mode gets lost, i dont want to flash the KDZ and end up with no download mode and no TWRP and have a hard brick
Update : I have KDZ 99820a using LGUP and locked bootloader I'm back to stock is there any issues if I update to the 99830b which is the original software that the phone came with? Can I perform that update via KDZ?
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Click to collapse
Losing your download mode has nothing to do with stock.
Why did you lock your bootloader back? You can run stock rooted firmware just fine and have lots of advantages like DTS surround sound stereo.
I don't understand why people lock the bootloader back just because they decide they don't want custom ROMs. The best thing to do is run rooted stock firmware, have everything you want.
ChazzMatt said:
Losing your download nose has nothing to do with stock.
Why did you lock your bootloader back? You can run stock rooted firmware just fine and have lots of advantages like DTS surround sound stereo.
I don't understand why people lock the bootloader back just because they hate custom ROMs. The best thing to do is run rooted stock firmware, have everything you want.
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Don't get me wrong i like having rooted devices because of the endless possibilities it offers but this time mayor newer games that are coming out they have the ability to detect if you are rooted or if your bootloader has been unlocked and they kick you out of their servers, that's the main reason why i want to go full stock, and I was so afraid to do so because some people are reporting when moving from oreo to pie it creates bootloop and since I had issues when I was rooted and flashed via twrp 99830.zip download mode won't detect the USB cable only when I rolled back with LGUP to oreo downloadode started working and I KDZ oreo to have official recovery and relocked bootloader but I want pie is just I am not sure if I can go up with LGUP to pie using 99830b (which my phone originally came with pie) from 99820b
Could you please help me with the same problem with download mode on h932? I'm on stock pie now. I want to downgrade to nought but my PC not recognize phone in download mode. Thank you.
Or_dos said:
Could you please help me with the same problem with download mode on h932? I'm on stock pie now. I want to downgrade to nought but my PC not recognize phone in download mode. Thank you.
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Click to collapse
First try a different USB port, different cable and/or different computer. If you never rooted the phone, there is very little chance that your actual Download Mode got corrupted, and one of the above will most likely solve it (although many doubt it because it sounds too trivial).
Also, make sure you're using the latest Dual Mode Dev patched LGUP from one of ChazzMatt's ROM threads.
Next I would try the Update Recovery mode in LG Bridge (on the Update tab).
Finally, if none of those work, you can try force installing the Pie OTA using LGUP FOTA mode (doesn't require Download Mode). It's described in the thread linked below. Best to read the whole thread for context, it's just a few pages.
[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
Hopefully one of those will work for you. Please report your results, regardless of outcome.
Good luck to you :fingers-crossed:
TheDannemand said:
First try a different USB port, different cable and/or different computer. If you never rooted the phone, there is very little chance that your actual Download Mode got corrupted, and one of the above will most likely solve it (although many doubt it because it sounds too trivial).
Also, make sure you're using the latest Dual Mode Dev patched LGUP from one of ChazzMatt's ROM threads.
Next I would try the Update Recovery mode in LG Bridge (on the Update tab).
Finally, if none of those work, you can try force installing the Pie OTA using LGUP FOTA mode (doesn't require Download Mode). It's described in the thread linked below. Best to read the whole thread for context, it's just a few pages.
[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
Hopefully one of those will work for you. Please report your results, regardless of outcome.
Good luck to you :fingers-crossed:
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Click to collapse
I tried all things with cabels, PCs and drivers, i'm not sure but as i know LG phone in download mode should be recognized as anything, but in my case i have no any devices in the device manager. I didn't root this phone but i bought it with unlocked bootloader so it is possible that it was rooted. I tried lock bootloader but it didn't helps so i unlocked it again. Now i'm going to try to flash OTA file. Thank you so much for help.
Or_dos said:
I tried all things with cabels, PCs and drivers, i'm not sure but as i know LG phone in download mode should be recognized as anything, but in my case i have no any devices in the device manager. I didn't root this phone but i bought it with unlocked bootloader so it is possible that it was rooted. I tried lock bootloader but it didn't helps so i unlocked it again. Now i'm going to try to flash OTA file. Thank you so much for help.
Click to expand...
Click to collapse
Does Download Mode start on the phone?
Just to make sure: From Power off, press and hold VolUp while plugging in the cable. Then load LGUP. Again make sure you're using the Pie compatible LGUP from one of ChazzMatt's ROM threads.
Otherwise I'd try LG Bridge next.
As for force installing the Pie update with LGUP FOTA (the thread I linked) we've only had one confirmed case of it fixing Download Mode so far, although not many tried it yet. On Oreo we had many users confirming it, but Pie is different.
I should add that if you have working Pie, but just would like to roll back, there is a risk that the FOTA will mess up what you have. So if it doesn't fix your Download Mode, you could be worse of. Just a heads-up
TheDannemand said:
Does Download Mode start on the phone?
Just to make sure: From Power off, press and hold VolUp while plugging in the cable. Then load LGUP. Again make sure you're using the Pie compatible LGUP from one of ChazzMatt's ROM threads.
Otherwise I'd try LG Bridge next.
As for force installing the Pie update with LGUP FOTA (the thread I linked) we've only had one confirmed case of it fixing Download Mode so far, although not many tried it yet. On Oreo we had many users confirming it, but Pie is different.
I should add that if you have working Pie, but just would like to roll back, there is a risk that the FOTA will mess up what you have. So if it doesn't fix your Download Mode, you could be worse of. Just a heads-up
Click to expand...
Click to collapse
Actually the main problem is that phone doesn't recognize by PC when download mode is on the screen. I have tried to use lg bridge to recover, but anyway it reboots my phone and then my phone doesn't recognize. Now i'm trying to solve lg up error with FOTA update, it looks like wrong dll file. I'll keep you up to date.
Thank you!
Or_dos said:
Actually the main problem is that phone doesn't recognize by PC when download mode is on the screen. I have tried to use lg bridge to recover, but anyway it reboots my phone and then my phone doesn't recognize. Now i'm trying to solve lg up error with FOTA update, it looks like wrong dll file. I'll keep you up to date.
Thank you!
Click to expand...
Click to collapse
Got it! Thank you for the update.
Completely uninstall LGUP and remove all folders of it. Then install the Dual Mode LGUP from ChazzMatt's H932 ROM thread linked below, using his exact installation steps. That's important: LGUP isn't just LGUP!
[H932][STOCK][PIE]LG V30 U.S. T-Mobile H932 H93230d_00_0902.KDZ
https://forum.xda-developers.com/lg-v30/development/h932-lg-v30-s-t-mobile-h932-t3952258

i need help, my problem is with lgv30 firmware update

I installed a custom room in my LG V30 and then I started to have problems with the camera and other things and now I want to reinstall the official ROM and it remains in firmware now waiting for a connection and when I use LG Bride and my cell phone turns off to update stop responding and stay in firmware update
jhon7878 said:
I installed a custom room in my LG V30 and then I started to have problems with the camera and other things and now I want to reinstall the official ROM
Click to expand...
Click to collapse
You don't say WHICH V30 you have. That's important information you left off. If cross flashed to another variant, what was the last stock firmware you used before installing custom ROM?
You can either:
* restore the TWRP backup you made before flashing the LOS- based custom ROM.
You did make a backup, right?
or
* flash TWRP-flashable zip (ROM) made from stock firmware.
Made for V30 with TRWP custom recovery by our Devs; basically stock ROM but with DTS 3D and other stuff already enabled. We have them for several V30 variants -- which is why we need to know what you have.
or
* use Dev Patched LGUP to install LG stock KDZ for your V30 variant.
Your Bootloader will still be unlocked. You will then need to follow WTF Section 6 Instructions to re-install TWRP, reformat internal memory, root. Unless you have T-Mobile H932, which uses different method to install TWRP. Which is why we need to know what variant you have.
(Saying you have a "V30" is like saying you have a "Dell" computer. It tells us very little.)
jhon7878 said:
LG Bridge and my cell phone turns off to update stop responding and stay in firmware update
Click to expand...
Click to collapse
LG Bridge isn't going to work for you on LOS-based custom ROMs. It's LG software looking for LG stock firmware to update.
solution
Thank you very much to those who have answered me, and tried most of the forms and just brick the cell phone, finally I read on a page that served to let much of the battery run out and try again and I did it and miracle It worked, I hope this helps another person with a similar problem.

Should I expect for a stable Android 10 custom rom in the future for LG V30 US998?

I am struggled flashing the Android 10 cook rom in my LG V30 North American variant, specifically US998 model. Of course there is nothing wrong at flashing process. No crashing, no bootlooping, everything processed pretty well until I kept getting Wifi issue all the time. I attempted various of solutions like Jeff's backup, Oreo Modem, and other kinds of solution but no luck. And of course, I won't have any ability to access to Wifi if I kept on using Q ROM. I am just a newbie here so I don't know if it happened on Pie as well, but currently, I am running Havoc OS 2.9, and it worked perfectly fine. I flashed straight through Pie KDZ, so I'm afriad if it made permanent change to my device that prevented the Wifi to work ( Yes I already read the note, and it said to LOS 16 based rom, but I am running fine, nothing happened lol )
So am I permanently not able to use any kind of Android Q ROM Cook anymore, or am I able to get Wifi to work if I kept waiting and waiting for a completed stable version? Ty
Android 10 is completely stable tho, wifi is a hit and miss, try to downgrade to H933 and upgrade to stock pie, then flash android 10 again, nougat always seemed to fix stuffs, canada variant in particular, look in ChazzMatt's threads for flashing stock pie, there is a workaround about how to flash H933 nougat
Wait. Do I need to flash directly from LOS-16 based to Nought Partition DL and then flash KDZ to Pie, or stock Oreo first then Nought?
Lucien1997 said:
Android 10 is completely stable tho, wifi is a hit and miss, try to downgrade to H933 and upgrade to stock pie, then flash android 10 again, nougat always seemed to fix stuffs, canada variant in particular, look in ChazzMatt's threads for flashing stock pie, there is a workaround about how to flash H933 nougat
Click to expand...
Click to collapse
Wait! Am I able to flash directly to H933 KDZ then flash stock Pie? Or I need to downgrade to Oreo and then do the rest?
https://forum.xda-developers.com/showpost.php?p=81499481&postcount=593
https://forum.xda-developers.com/showpost.php?p=80347089&postcount=6
Here are the links about H933 nougat downgrade, try it, apply the Q wifi fixes if necessary and let us know how it went
Nvm. I have no idea how stupid I am ?.
The thing is, I did put the Jeff's backup folder on TWRP folder, but I cant get why I did put it straight to backup folder but not the folder with my model printed in the title. There is a folder inside the backup folder, I put it in there, and I got Wifi. How strange it is lol
Anyway, thanks a lot for your support

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