lg v30 boot loop - LG V30 Questions & Answers

Please help me.
before unlock bootloader and install rom. and boot loop can't factory reset because factory reset is run twrp. But i can't boot twrp
sorry for english thank you.

sandking707 said:
Please help me.
before unlock bootloader and install rom. and boot loop can't factory reset because factory reset is run twrp. But i can't boot twrp
sorry for english thank you.
Click to expand...
Click to collapse
Try a master reset?
https://forum.xda-developers.com/showpost.php?p=76429682&postcount=101

sandking707 said:
Please help me.
before unlock bootloader and install rom. and boot loop can't factory reset because factory reset is run twrp. But i can't boot twrp
sorry for english thank you.
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Click to collapse
Copy and paste this below into Google Translate to help you read in your language.
https://translate.google.com/
See below for suggestion. As @SilverZero suggests, you need Master Reset. Remember, Master Reset is NOT factory reset.
What variant do you have? H930, H93DS, US998, LS998, H933, H931 -- or what?
Is your bootloader unlocked, yes or no?
Do you have TWRP installed, yes or no?
If you are NOT yet bootloader unlocked or do not yet have TWRP installed, were you trying to do Frankenstein on a North America phone to convert to US998?
If yes, then you simply need to Master Reset. After step #2 (installing Nougat US998) you have to IMMEDIATELY do a Master Reset (step #3) to stabilize the phone before going on to step #4 (US998 Oreo). It's IN the Frankenstein instructions.
IF you are bootloader unlocked and do have TWRP installed, you can boot to TWRP via the fastboot boot recovery command, like when you first installed TWRP.
SilverZero said:
Try a master reset?
https://forum.xda-developers.com/showpost.php?p=76429682&postcount=101
Click to expand...
Click to collapse

Related

Help: security error

I have one LG g3 Ls990 model with Android 5.0.1 and ZVA firmware.
I rooted phone with LG script method without any issue. Rooting successful.
After this I installed twrp with Ls990 autorec lolipop apk.
Then I switch off phone and booted in twrp and made backup of my efs and present stock rom.
But when I again booted phone , it show lg logo and screen written with "Security Error" and then switch off.
Still I am able to boot in twrp and download mode but not able to boot in rom.
Kindly guide me to resolve this issue.
Thanks in advance.
arunkarnwal1981 said:
I have one LG g3 Ls990 model with Android 5.0.1 and ZVA firmware.
I rooted phone with LG script method without any issue. Rooting successful.
After this I installed twrp with Ls990 autorec lolipop apk.
Then I switch off phone and booted in twrp and made backup of my efs and present stock rom.
But when I again booted phone , it show lg logo and screen written with "Security Error" and then switch off.
Still I am able to boot in twrp and download mode but not able to boot in rom.
Kindly guide me to resolve this issue.
Thanks in advance.
Click to expand...
Click to collapse
I don't know if this will help, but it SHOULDN'T hurt either.
http://forum.xda-developers.com/showthread.php?p=57144978
Try flashing it. It's skin1980 sharpening mod, and it bumps the kernel.
Maybe it'll work.
engine95 said:
I don't know if this will help, but it SHOULDN'T hurt either.
http://forum.xda-developers.com/showthread.php?p=57144978
Try flashing it. It's skin1980 sharpening mod, and it bumps the kernel.
Maybe it'll work.
Click to expand...
Click to collapse
not work. but finally i flashed zv4 tot and root it with bump twrp.
now i want to install ZVA or any lollipop rom, so kindly guide me further steps as presently i am on ZV4 with root and bump twrp and also gsm unlocked.
arunkarnwal1981 said:
not work. but finally i flashed zv4 tot and root it with bump twrp.
now i want to install ZVA or any lollipop rom, so kindly guide me further steps as presently i am on ZV4 with root and bump twrp and also gsm unlocked.
Click to expand...
Click to collapse
Boot into twrp and flash "BarpapA" by @engine95
1619415 said:
Boot into twrp and flash "BarpapA" by @engine95
Click to expand...
Click to collapse
can I install cloudy 2.5 in same manner?? or required to flash zv8 modem
arunkarnwal1981 said:
I have one LG g3 Ls990 model with Android 5.0.1 and ZVA firmware.
I rooted phone with LG script method without any issue. Rooting successful.
After this I installed twrp with Ls990 autorec lolipop apk.
Then I switch off phone and booted in twrp and made backup of my efs and present stock rom.
But when I again booted phone , it show lg logo and screen written with "Security Error" and then switch off.
Still I am able to boot in twrp and download mode but not able to boot in rom.
Kindly guide me to resolve this issue.
Thanks in advance.
Click to expand...
Click to collapse
I am in the same place (Security Error) and arrived there via the same steps. I think the only difference is that I am on ZVB firmware.
The firmware difference may explain (or maybe not) why I can boot into TWRP but NOT into download mode.
I'm thinking that if I have TWRP access I should be able to dig myself out of this hole, but not sure how to proceed. I'm guessing that doing a factory reset is not going to fix this, but if that were to return me to stock, that would be great. But I don't want to attempt that without getting some experienced feedback.
If a reset is a no-go, what are my flashing options?
Thanks for any suggestions!
Update & Additional Info: When I'm in TWRP, if I select Reboot and then Bootloader, the Firmware Update screen appears.

Need help/advice!

I did a data wipe accidentally in TwRP. Meant to just get cache. Now I lost root/TWRP apparently. Just recently updated to 20c. I have no recovery when I reboot but I still get the unlocked bootloader info when rebooting. Any ideas/help is greatly appreciated.
Jjavitable22 said:
I did a data wipe accidentally in TwRP. Meant to just get cache. Now I lost root/TWRP apparently. Just recently updated to 20c. I have no recovery when I reboot but I still get the unlocked bootloader info when rebooting. Any ideas/help is greatly appreciated.
Click to expand...
Click to collapse
I don't see how wiping data would remove TWRP, but the way I'd reestablish TWRP once it's gone would be to LGUP the Tungkick 10d tot file and then use that TWRP to flash the 20c zip by Autoprime. Flash SuperSU one way or another and then have a blast. I'm sure there are other ways to accomplish all this, but this way is easy and has been reliable for me.
It seems that you can still boot the phone.
If you still have valid bootloader the issue is not that tricky.
Just do a "adb reboot bootloader" and reflash twrp, like how you installed them in the first place.
I'm not sure which exact version of twrp is compatible with v20*, but that should be easy to find anyway.
Then boot into twrp and flash supersu/magisk/any other thing you need.
ReVanTis said:
It seems that you can still boot the phone.
If you still have valid bootloader the issue is not that tricky.
Just do a "adb reboot bootloader" and reflash twrp, like how you installed them in the first place.
I'm not sure which exact version of twrp is compatible with v20*, but that should be easy to find anyway.
Then boot into twrp and flash supersu/magisk/any other thing you need.
Click to expand...
Click to collapse
So I did a factory reset from the settings menu. Now it boots back into TWRP. Weird. But that's it. No OS. Just the recovery. So I guess I'll try and flash a ROM and see if I can get that back. Thanks for trying to help.
Bulkang U. Antibop said:
I don't see how wiping data would remove TWRP, but the way I'd reestablish TWRP once it's gone would be to LGUP the Tungkick 10d tot file and then use that TWRP to flash the 20c zip by Autoprime. Flash SuperSU one way or another and then have a blast. I'm sure there are other ways to accomplish all this, but this way is easy and has been reliable for me.
Click to expand...
Click to collapse
Wasn't sure if I could do any 10s coming from 20C. I got into TWRP recovery but now I have no OS. Thanks for helping out.
Jjavitable22 said:
Wasn't sure if I could do any 10s coming from 20C. I got into TWRP recovery but now I have no OS. Thanks for helping out.
Click to expand...
Click to collapse
Yeah, as long as the ARB is the same (ANTIROLLBACK 01) you can flash 10 after 20. I don't think 10a qualifies, but 10d should be okay from 20a or 20c.
It's a quirk of the G5 that TWRP can only be accessed from boot by factory reset of the phone. If you are already up and rooted, you can use a command or program AFTER boot to access TWRP without factory reset. But, for now, that's our doorway into TWRP from power-off.
Now that you're in TWRP you can sideload a ROM onto your SD and flash it, just remember to also flash the latest superSU zip afterward to ensure root (unless your ROM is pre-rooted.)

Bricked my h850

Hello, today I started to having some more fun with my LG G5, I unlocked bootloader, flashed TWRP and installed SuperSU, then I started to flash firmwares. I flashed "Tizen" rom for G5, flashed nicely, everything was working and I had one more software to flash on my sd "Genisys" which I wanted to try. After flashing I was stuck on lg logo, went again to recovery, and formatted system, then again flashed this soft and after rebooting I was stuck in a recovery loop.
From here: https://forum.xda-developers.com/lg-g5/help/bootloop-twrp-t3514927 I tried the solution and my phone is showing now red triangle with "Your device is corrupt. It cannot be trusted and will not boot.
I can still get to bootloader but when i try to flash my unlock.bin again there is a "Bootloader Unlock key write fail" message.
Any help appreciated
Solved: Download mode worked so I installed V20a KDZ with LGUP.
bobiak said:
Hello, today I started to having some more fun with my LG G5, I unlocked bootloader, flashed TWRP and installed SuperSU, then I started to flash firmwares. I flashed "Tizen" rom for G5, flashed nicely, everything was working and I had one more software to flash on my sd "Genisys" which I wanted to try. After flashing I was stuck on lg logo, went again to recovery, and formatted system, then again flashed this soft and after rebooting I was stuck in a recovery loop.
From here: https://forum.xda-developers.com/lg-g5/help/bootloop-twrp-t3514927 I tried the solution and my phone is showing now red triangle with "Your device is corrupt. It cannot be trusted and will not boot.
I can still get to bootloader but when i try to flash my unlock.bin again there is a "Bootloader Unlock key write fail" message.
Any help appreciated
Solved: Download mode worked so I installed V20a KDZ with LGUP.
Click to expand...
Click to collapse
Did you try to unlock the bootloader again - after you unbricked it?
If so, did it work?
@bobiak
Congratulation to your result! Most of the guys i know, would have a unusable paperweight after those experiments.
non-toxic said:
@bobiak
Congratulation to your result! Most of the guys i know, would have a unusable paperweight after those experiments.
Click to expand...
Click to collapse
Thanks
ofirfed said:
Did you try to unlock the bootloader again - after you unbricked it?
If so, did it work?
Click to expand...
Click to collapse
When trying to solve the recovery loop (the link attached) you are moving some system files where bootloader is, so after flashing with KDZ I had bootloader locked againg, but when I got in that recovery loop again and didn't mess with moving any system files, after flashing KDZ my bootloader was still unlocked.
I didn't flash my unlock.bin to see if really bootloader is unlocked, recovery and root flashed without problem.
same problem
bobiak said:
Hello, today I started to having some more fun with my LG G5, I unlocked bootloader, flashed TWRP and installed SuperSU, then I started to flash firmwares. I flashed "Tizen" rom for G5, flashed nicely, everything was working and I had one more software to flash on my sd "Genisys" which I wanted to try. After flashing I was stuck on lg logo, went again to recovery, and formatted system, then again flashed this soft and after rebooting I was stuck in a recovery loop.
From here: https://forum.xda-developers.com/lg-g5/help/bootloop-twrp-t3514927 I tried the solution and my phone is showing now red triangle with "Your device is corrupt. It cannot be trusted and will not boot.
I can still get to bootloader but when i try to flash my unlock.bin again there is a "Bootloader Unlock key write fail" message.
Any help appreciated
Solved: Download mode worked so I installed V20a KDZ with LGUP.
Click to expand...
Click to collapse
how to fix? same here
After a few phones with flashing roms..ive come to the realization that its a waste of time..stay stock
Martin_ger said:
how to fix? same here
Click to expand...
Click to collapse
Read the last line.

Help for root & unlock the bootloader with H930

I am from HK, forgive my bad english please...
I just buy a UK version v30 (H930)
I have a few question about:
1) I hope to use android 8.0. can I upgrade the phone to last version of H930? my phone version now is 7.1.2 V10v-EUR-XX
2) I found some reply in https://forum.xda-developers.com/lg-v30/help/unlocking-rooting-twrp-magisk-step-step-t3745006 seems telling me that after rooted, I can't reboot the phone, otherwise the TWRP will lose, that means lost root? and I need to install TWRP and Root again every time.
3) after upgrade to android 8.0, can I just follow https://forum.xda-developers.com/lg-v30/help/unlocking-rooting-twrp-magisk-step-step-t3745006 #1 to root?
thanks for read & help!!!
Your question is simply a TWRP question.
After installing TWRP custom recovery, you have to then immediately boot to TWRP and enable it. If you boot back to regular OS first, TWRP doesn't stick. That's all that warning means.
Once in TWRP that's when you flash the root method of your choice, Magisk or SuperSu.
See this post for bootloader unlock, TWRP, root. You already have H930 so you're already one step ahead:
https://forum.xda-developers.com/showpost.php?p=76584629&postcount=193
ChazzMatt said:
Your question is simply a TWRP question.
After installing TWRP custom recovery, you have to then immediately boot to TWRP and enable it. If you boot back to regular OS first, TWRP doesn't stick. That's all that warning means.
Once in TWRP that's when you flash the root method of your choice, Magisk or SuperSu.
See this post for bootloader unlock, TWRP, root. You already have H930 so you're already one step ahead:
https://forum.xda-developers.com/showpost.php?p=76584629&postcount=193
Click to expand...
Click to collapse
thank you for your prompt reply, I am now upgrading.
I can found the fake unlocked bootloader in your article, sounds great!!
one more question, can I use the download link with https://forum.xda-developers.com/lg-v30/development/h930-lg-v30-european-market-h930-t3779076 as Oreo H930 KDZ?
lukelyc said:
thank you for your prompt reply, I am now upgrading.
I can found the fake unlocked bootloader in your article, sounds great!!
one more question, can I use the download link with https://forum.xda-developers.com/lg-v30/development/h930-lg-v30-european-market-h930-t3779076 as Oreo H930 KDZ?
Click to expand...
Click to collapse
Yes that's the one you use for H930 with that attached LGUP to upgrade to Oreo.

HELP! Is my phone bricked?

Hello all,
I have a Verizon LG V30 that I converted to a US998 LG V30 using the Frankenstein method. Today, I clicked the Uninstall option in Magisk Manager and the device uninstalled it and rebooted. Upon rebooting, I was thrown into Fastboot mode with no way to get out (No Recovery, nothing.) I tried resetting through Fastboot to no avail. It still connects with Fastboot but nothing else. I can flash firmware with the patched LGUP but no file I have tried has worked. Is there anyway I can flash my V30 back to Stock VS996? Thank you.
Charbleach said:
Hello all,
I have a Verizon LG V30 that I converted to a US998 LG V30 using the Frankenstein method. Today, I clicked the Uninstall option in Magisk Manager and the device uninstalled it and rebooted. Upon rebooting, I was thrown into Fastboot mode with no way to get out (No Recovery, nothing.)
Click to expand...
Click to collapse
Why isn't there a way to get into Recovery? Use the same fastboot commands you got into recovery the first time you installed TWRP. You can even use those commands to boot to TWRP on your phone even when TWRP is not installed on your phone, via "temp" TWRP.
Since you uninstalled root, you can't use the Reboot Recovery app anymore -- as that requires root access -- but you can still use the fastboot flash commands.
Charbleach said:
I tried resetting through Fastboot to no avail. It still connects with Fastboot but nothing else. I can flash firmware with the patched LGUP but no file I have tried has worked. Is there anyway I can flash my V30 back to Stock VS996? Thank you.
Click to expand...
Click to collapse
Yes, go into Download mode manually and use dev patched LGUP to flash VS996 Oreo KDZ with DL Partition method. Flash all partitions. Not sure why you are doing that however. You decided you don't want to own your phone anymore?
People who want to KEEP root and TWRP and go back to VS998 would use DL Partition method -- but UNtick the partition recovery partitions. Then you would still have VS996 but with TWRP. You would no longer have fastboot flash commands, but you would still have TWRP custom recovery. Then you just flash Magisk root. So you would have VS998 with TWRP and root.
And at that point you could even use the reboot recovery app with root to always easily get to TWRP.
ChazzMatt said:
Why isn't there a way to get into Recovery? Use the same fastboot commands you got into recovery the first time you installed TWRP. You can even use those commands to boot to TWRP on your phone even when TWRP is not installed on your phone, via "temp" TWRP.
Since you uninstalled root, you can't use the Reboot Recovery app anymore -- as that requires root access -- but you can still use the fastboot flash commands.
Yes, go into Download mode manually and use dev patched LGUP to flash VS996 Oreo KDZ with DL Partition method. Flash all partitions. Not sure why you are doing that however. You decided you don't want to own your phone anymore?
People who want to KEEP root and TWRP and go back to VS998 would use DL Partition method -- but UNtick the partition recovery partitions. Then you would still have VS996 but with TWRP. You would no longer have fastboot flash commands, but you would still have TWRP custom recovery. Then you just flash Magisk root. So you would have VS998 with TWRP and root.
And at that point you could even use the reboot recovery app with root to always easily get to TWRP.
Click to expand...
Click to collapse
Thank you very much. I am booting up my ADB and Fastboot to flash TWRP, as I still at least have an unlocked boot loader. I’ll download a Oreo KDZ for the Verizon Variant if that doesn’t work out. Do you have any sources for one on the forums? Thank you!
EDIT: Once I get into recovery, should I flash a stock ROM? There are a few on the ROMs section of the forums but I do not non which one to download.
Charbleach said:
Thank you very much. I am booting up my ADB and Fastboot to flash TWRP, as I still at least have an unlocked boot loader. I’ll download a Oreo KDZ for the Verizon Variant if that doesn’t work out. Do you have any sources for one on the forums? Thank you!
EDIT: Once I get into recovery, should I flash a stock ROM? There are a few on the ROMs section of the forums but I do not non which one to download.
Click to expand...
Click to collapse
1) Do your want to keep TWRP and root and just flash back to VS996 (while keeping TWRP and root)?
2) Or do you want to just keep TWRP but you don't want root right now?
If #1, once in TWRP, reflash Magisk.
Then reboot, and go into manual download mode BEFORE opening the patched LGUP. Then Frankenstein back to VS996 with DL PARTITION method, but untick (uncheck) the recovery partitions. Then you'll be back to VS996, but still have TWRP and be rooted.
ChazzMatt said:
1) Do your want to keep TWRP and root and just flash back to VS996 (while keeping TWRP and root)?
2) Or do you want to just keep TWRP but you don't want root right now?
If #1, once in TWRP, reflash Magisk.
Then reboot, and go into manual download mode BEFORE opening the patched LGUP. Then Frankenstein back to VS996 with DL PARTITION method, but untick (uncheck) the recovery partitions. Then you'll be back to VS996, but still have TWRP and be rooted.
Click to expand...
Click to collapse
Don't mind my other comment, I fixed what was going on there for the most part. I have tried 2 different firmware files and both of them will not boot. The Official LG Boot image (flashable with TWRP) flashed with no errors, but i just booted into download mode again. I also flashed LineageOS and the same thing happened. I tried the Refurbish and Upgrade option through LGUP and both stopped at 19% with error 0x2000. Do you have any suggestions? Thank you.
Charbleach said:
Don't mind my other comment, I fixed what was going on there for the most part. I have tried 2 different firmware files and both of them will not boot. The Official LG Boot image (flashable with TWRP) flashed with no errors, but i just booted into download mode again. I also flashed LineageOS and the same thing happened. I tried the Refurbish and Upgrade option through LGUP and both stopped at 19% with error 0x2000. Do you have any suggestions? Thank you.
Click to expand...
Click to collapse
Same thing happened to mine I found no fix other then to lie to both Sprint and LG till LG agreed to take it in and fix it...

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