bootloop after flashing fullmics h870 unable to flash stock rom - LG G6 Questions and Answers

Hello this is my first lg h870
i unlocked the bootloader installled twrp and flash fullmics rom since then i got in to a bootloop wipe and reset nothing works.
lgup dont recognise my device in fastboot only fastboot drivers are available and i can give commando's in fastboot modus.
When i try to transfer flashable stock rom in twrp ( 3.1.1.0) but the transfer stuck on random times also with other files.
So what can i do it is not possible to transfer files in twrp, and lgup dont see the device in fastboot mode.

Remember you MUST wipe completely before flashing a custom rom from stock for best results.
Use KDZ to flash back to latest stock via Download mode (assuming you can get into download mode) then re flash TWRP, Wipe everything, including format data, so you decrypt (optional). Flash fulmics 2.0 then 2.1 patch. then you should be set.

Somehow I managed to transfer fulmics, I understand how u need to flash kdz files but my phone didn't show up in fasboot modus on LGup.
Fasboot adb was the only thing what worked.
What did I wrong never had such pain to flash a rom

bassbounce said:
Somehow I managed to transfer fulmics, I understand how u need to flash kdz files but my phone didn't show up in fasboot modus on LGup.
Fasboot adb was the only thing what worked.
What did I wrong never had such pain to flash a rom
Click to expand...
Click to collapse
to flash KDZ, you need to be in download mode, not fastboot. Google search how to get to download mode on LG G6 and use LGUP with UPPERCUT patch to flash STOCK KDZ.

Related

Lost recovery, cant boot, only fastboot

Guys... when i tried to flash oos 3.0 on my op2 through twrp, i first wiped the data to install new rom, then install oos 3.0, it failed. I then flashed the recovery i downloaded from the thread, then restart the recovery
I cant boot into the recovery.
System can't boot
Is it called "brick"?
So i tried to flash stock recovery in pc by command, but it says "remote: device is locked. cannot flash images". any solution to this problem?
I can boot into fastboot mode
You need to run the phone in Qualcomm mode on a PC and run the recovery tool to fix you bootloader.
I did the same and it was a royal ball ache trying to find out how to fix it
Don't do what rosswaa said
Why not?
What you should do is boot your phone into fastboot mode, connect it to your pc. Flash this modified TWRP recovery img to your phone https://www.androidfilehost.com/?fid=24459283995297945. After that you have to flash this modified SuperSU (through the new recovery) https://www.androidfilehost.com/?fid=24459283995297946.
The normal recovery doesn't work in OOS 3.0 (just like in HOS) and it's the SuperSU that gives you the soft brick. A dirty flash of the modified SuperSU should fix it.
I also had your problem and I did what rosswaa said which shouldn't be necessary (I lost all my data and backups).
I didn't lose anything, but I tried doing what you said and my bootloader was screwed so wouldn't take a flashed recovery or anything (yes the modified one)
Wish I hadnt been so excited and just flashed but all sorted now
Hmm okay, if it doesn't work with flashing the new recovery img then do what rosswaa said and after that follow this post https://forums.oneplus.net/threads/installation-instructions-faqs-oxygenos-3-0-0.439108/
Obviously try what green says first, if it works then happy days
first i am really glad that someone give some advices on me. But since i am a noob, how can i flash twrp in fastboot mode? using command? "fastboot flash recovery xxx.img"? thx
SPiCa39's said:
Guys... when i tried to flash oos 3.0 on my op2 through twrp, i first wiped the data to install new rom, then install oos 3.0, it failed. I then flashed the recovery i downloaded from the thread, then restart the recovery
I cant boot into the recovery.
System can't boot
Is it called "brick"?
So i tried to flash stock recovery in pc by command, but it says "remote: device is locked. cannot flash images". any solution to this problem?
I can boot into fastboot mode
Click to expand...
Click to collapse
1 Install official TWRP 3.x via fastboot twrp.me/devices/oneplustwo.html
Reboot to recovery
2 install this modified version of TWRP
forum.xda-developers.com/oneplus-2/development/recovery-teamwin-recovery-project-3-0-0-t3310713
Reboot to recovery
3 install oos3 (And supersu)
Sorry i can't post link

unknown model in lgup.

Actual model is ls997 but i flashed vs995 kdz with ls997 modem everything worked fine.Just very crappy battery life so i decided to flash a us996 rom. but it was not just a rom but the full us996 kdz twrp flashable without the recovery.I figured this as i was flashing in twrp it showed flashing laf and all other partitions.So now it doesn't even boot to any recovery or boot at all.but i still have unlocked bootloader and can get into download mode.Though lgup keeps saying "unknown model, US996".Im sure i can just flash vs995 kdz again since there is no ls997 kdz but lgup wont let me in lol.is there any way to bypass this unknown model pop up? or can i use flash tool or something.
jass65 said:
Actual model is ls997 but i flashed vs995 kdz with ls997 modem everything worked fine.Just very crappy battery life so i decided to flash a us996 rom. but it was not just a rom but the full us996 kdz twrp flashable without the recovery.I figured this as i was flashing in twrp it showed flashing laf and all other partitions.So now it doesn't even boot to any recovery or boot at all.but i still have unlocked bootloader and can get into download mode.Though lgup keeps saying "unknown model, US996".Im sure i can just flash vs995 kdz again since there is no ls997 kdz but lgup wont let me in lol.is there any way to bypass this unknown model pop up? or can i use flash tool or something.
Click to expand...
Click to collapse
ok so i tried lg flash tool and using the us996 kdz or vs995 kdz it start the download and just 2 secs in it say 0x0000 " kdz name here not support ".I'm using the lgup dll that comes with the kdz for the lg flash tool.also in fastboot none of the flashing or erase commands work, just say phone locked or something.i think ive done f**cked this phone.Damn i should have known that twrp zip flashes every partition...
lg mobile support tool says ls997 but the firmwire is like us996q or something.Lg bridge can't even connect to the device.
Grab the patched LG UP, and use partition DL mode.
-- Brian
runningnak3d said:
Grab the patched LG UP, and use partition DL mode.
-- Brian
Click to expand...
Click to collapse
thanks for the reply Brian.
i thought i have the patched one, i downloaded it from here : https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
but i wont even open because it says "you have to select a known model, please" " when i select unknown model,US996COM41" and if i try without any phone connected, it asks to select a model.So it does detect it just not correctly.Is there a way to patch it to bypass model selection?
I think the lg flash tool i have (1.8.x.x) is out of date for v20 that's why it may be failing download once it reaches "preareafterdload Download".Though the other version 2.0.1.6 or something fails to load at all.correct me if im wrong.
FOUND the fix.Used lg flash tool (1.8.x.x) but instead of using the dll from kdz i used the lg g5 dll provided in this fourm:https://forum.xda-developers.com/lg-g5/how-to/bring-lg-g5-to-life-download-mode-lgup-t3565508
and is flashed just fine!!
jass65 said:
thanks for the reply Brian.
i thought i have the patched one, i downloaded it from here : https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
but i wont even open because it says "you have to select a known model, please" " when i select unknown model,US996COM41" and if i try without any phone connected, it asks to select a model.So it does detect it just not correctly.Is there a way to patch it to bypass model selection?
I think the lg flash tool i have (1.8.x.x) is out of date for v20 that's why it may be failing download once it reaches "preareafterdload Download".Though the other version 2.0.1.6 or something fails to load at all.correct me if im wrong.
FOUND the fix.Used lg flash tool (1.8.x.x) but instead of using the dll from kdz i used the lg g5 dll provided in this fourm:https://forum.xda-developers.com/lg-g5/how-to/bring-lg-g5-to-life-download-mode-lgup-t3565508
and is flashed just fine!!
Click to expand...
Click to collapse
hi, may i know which DLL file do you use to flash it with? mine to share it
deadmarch said:
hi, may i know which DLL file do you use to flash it with? mine to share it
Click to expand...
Click to collapse
https://forum.xda-developers.com/attachment.php?attachmentid=4072795&d=1489400089
its for the g5 but this is the only one that worked for me, guessing cause g5,g6,v20 use same processor? you might want to change the name of .dll to you model number Ex. " LGUP_LS997.dll
jass65 said:
https://forum.xda-developers.com/attachment.php?attachmentid=4072795&d=1489400089
its for the g5 but this is the only one that worked for me, guessing cause g5,g6,v20 use same processor? you might want to change the name of .dll to you model number Ex. " LGUP_LS997.dll
Click to expand...
Click to collapse
Follow the instructions you mentioned, while I am ready to flash dz file, flash tool will stop at 10% and show download failed info. My device is v20 f800s and use dll file you mentioned, that is why I can't flash dz file? If so, which dll file I should use?
jass65 said:
Actual model is ls997 but i flashed vs995 kdz with ls997 modem everything worked fine.Just very crappy battery life so i decided to flash a us996 rom. but it was not just a rom but the full us996 kdz twrp flashable without the recovery.I figured this as i was flashing in twrp it showed flashing laf and all other partitions.So now it doesn't even boot to any recovery or boot at all.but i still have unlocked bootloader and can get into download mode.Though lgup keeps saying "unknown model, US996".Im sure i can just flash vs995 kdz again since there is no ls997 kdz but lgup wont let me in lol.is there any way to bypass this unknown model pop up? or can i use flash tool or something.
Click to expand...
Click to collapse
Just use Uppercut, it will solve everything
jass65 said:
thanks for the reply Brian.
i thought i have the patched one, i downloaded it from here : https://forum.xda-developers.com/v20/how-to/guide-patch-lgup-to-unlock-features-t3652222
but i wont even open because it says "you have to select a known model, please" " when i select unknown model,US996COM41" and if i try without any phone connected, it asks to select a model.So it does detect it just not correctly.Is there a way to patch it to bypass model selection?
I think the lg flash tool i have (1.8.x.x) is out of date for v20 that's why it may be failing download once it reaches "preareafterdload Download".Though the other version 2.0.1.6 or something fails to load at all.correct me if im wrong.
FOUND the fix.Used lg flash tool (1.8.x.x) but instead of using the dll from kdz i used the lg g5 dll provided in this fourm:https://forum.xda-developers.com/lg-g5/how-to/bring-lg-g5-to-life-download-mode-lgup-t3565508
and is flashed just fine!!
Click to expand...
Click to collapse
1st Step: select LGUPc.dll extracted from H910PR kdz and selected .kdz file. It failed because model mismatch (H910 vs H910PR (I have Lineage 15.1 for H910 installed)
2nd step: select H850 dll and select extracted H910PR .dz file > It failed right within 1 second
I'll try flashing H910_10r full firmware through TWRP and see if I have any luck with the phone to flash back to H915 again....
Mine cannot booting, always bootloop.
I try to flash via LGUP and UPPERCUT there's unknown model, so i cannot proceed.
I try to LGFlasfhTool 1.8.x.x with several dll, from extract kdz or from the latest LGUP_commond.dll the latest one, i try many dll, but its say download failed after 4% or sometimes it's say to many partitions and then error download failed.
I try to boot in factory reset mode (power + volume down), after doing factory reset (pressing YES twice) only LG logo appeared.
I was try to using fastboot mode, but I cannot run fastboot boot twrp.img its say <waiting devices>
Now my LGV20 (US996) cannot boot up normally, it's only can boot in download mode, factory reset and bootloader mode.
Anyone can help, plz.
Thanks before
If you have the correct version of TWRP, rename it to "twrp.exe". From a powered off phone hold volume DOWN and plug-in USB cable. Issue the following command from a prompt in the same folder that contains TWRP:
Code:
fastboot flash recovery twrp.img
Reboot to recovery (Vol down, hold and release power), choose "yes" twice and wait a few seconds for a reboot into TWRP.
tinohuda said:
Mine cannot booting, always bootloop.
I try to flash via LGUP and UPPERCUT there's unknown model, so i cannot proceed.
I try to LGFlasfhTool 1.8.x.x with several dll, from extract kdz or from the latest LGUP_commond.dll the latest one, i try many dll, but its say download failed after 4% or sometimes it's say to many partitions and then error download failed.
I try to boot in factory reset mode (power + volume down), after doing factory reset (pressing YES twice) only LG logo appeared.
I was try to using fastboot mode, but I cannot run fastboot boot twrp.img its say <waiting devices>
Now my LGV20 (US996) cannot boot up normally, it's only can boot in download mode, factory reset and bootloader mode.
Anyone can help, plz.
Thanks before
Click to expand...
Click to collapse
not much actual help, but fastboot boot doesn't work on ANY v20 models. you have to actually flash it and THEN boot into it.

Zenfone 3 ZE520KL stuck on recovery, bootloader doesn't work

So, I tried unlocking ZE520KL with ASUS Flash Tool, and after 25 mins of flashing image I disconnected the device. Now, the device only boots into factory mode and recovery mode. Bootloader doesn't work and internal storage isn't mounted when I use the option Install update from SD card, but MicroSD works.
I had the latest update installed before this happened. I tried the latest firmware from the site and installed it via recovery but it shows signature verification failed. The same thing happens if I try to delete the first few lines of the updater script in the META-INF folder.
So help me guys, which firmware should I use and how should I use it? Even ADB sideload didn't work.
Try fastboot flash 'recovery.img', the same version from a firmware you're about to flash than flash the zip from recovery
sanctitude888 said:
Try fastboot flash 'recovery.img', the same version from a firmware you're about to flash than flash the zip from recovery
Click to expand...
Click to collapse
Thanks man. I figured it out though. I flashed the stock MM ROM and it worked. BTW, are there any ports of the stock camera? I really need the stock camera
Hi, my Zenfone 3 is stuck on bootloader screen and reboots again and again ... unable to use my fone
ruchikapoor said:
Hi, my Zenfone 3 is stuck on bootloader screen and reboots again and again ... unable to use my fone
Click to expand...
Click to collapse
Can you enter and stay on fastboot steadily? You need to obtain the whole stock ROM along with fastboot and recovery image from the very same package. Fastboot flash the fastboot and recovery image then flash the ROM from recovery.

Restoring stock from laf on H918

Hi
I used this method to install LOS 15.1 on my H918. But now i have to restore the stock os on it.
The normal way would be to restore download mode from recovery/twrp and use LGUP to flash a kdz.
The Problem is, that i don’t have twrp on the recovery partition. Using the above guide you install twrp to the laf and flash twrp to recovery from there. But flashing the recovery never worked so i used the laf/twrp to flash LOS.
I have several ideas, but i’m unsure which one would work:
Use the stock recovery, as it’s still on the recovery partition
Reflash the laf/downloadmode from the laf/twrp itself
Reflash downloadmode via adb shell
Btw: The phone is on ARB1
CitiesInDust said:
Hi
I used this method to install LOS 15.1 on my H918. But now i have to restore the stock os on it.
The normal way would be to restore download mode from recovery/twrp and use LGUP to flash a kdz.
The Problem is, that i don’t have twrp on the recovery partition. Using the above guide you install twrp to the laf and flash twrp to recovery from there. But flashing the recovery never worked so i used the laf/twrp to flash LOS.
I have several ideas, but i’m unsure which one would work:
Use the stock recovery, as it’s still on the recovery partition
Reflash the laf/downloadmode from the laf/twrp itself
Reflash downloadmode via adb shell
Btw: The phone is on ARB1
Click to expand...
Click to collapse
If you used laf exploit then twrp is on the laf partition (download mode) boot into it and twrp should load, from within, flash twrp as an image and point it to recovery. To restore download mode go to the lafexploit thread there's a zip to restore the laf partition
Sent from my LG-H910 using XDA Labs
If you used laf exploit then twrp is on the laf partition (download mode) boot into it and twrp should load, from within, flash twrp as an image and point it to recovery. To restore download mode go to the lafexploit thread there's a zip to restore the laf partition
Click to expand...
Click to collapse
Like i said, that is exactly my problem. Flashing twrp to recovery did not work. It will flash without error, but then boot the old recovery. That’s why i’m asking what other options i have.

Error in installing twrp

Hy everyone ineed help..
I have h990ds in nouget android security before 2016.
I try to root but in the middle of proses,its error, i try to flashing by lgup but the screen only flashboot mode. :crying::crying:
The some words in my screen:
Fastboot mode(red color)
Product name_msm8996 64gb
Varian_msm8996 64gb
Hw version_rev10
Bla...
Serial number -lgus996af7da36 (my type h990ds)
Secure boot-disable
Lock state_lock
[1090]
[1140]fastboot mode started
There 3 steps .bat after runfirsttime.bat
An i click step3 after step 2.
nuqudlover said:
Hy everyone ineed help..
I have h990ds in nouget android security before 2016.
I try to root but in the middle of proses,its error, i try to flashing by lgup but the screen only flashboot mode. :crying::crying:
The some words in my screen:
Fastboot mode(red color)
Product name_msm8996 64gb
Varian_msm8996 64gb
Hw version_rev10
Bla...
Serial number -lgus996af7da36 (my type h990ds)
Secure boot-disable
Lock state_lock
[1090]
[1140]fastboot mode started
There 3 steps .bat after runfirsttime.bat
An i click step3 after step 2.
Click to expand...
Click to collapse
The good news is that you've got the dirtysanta bootloader installed (that's why it's reporting us996) so you should be able to fix it without using LG UP and having to redo most of the process.
Install twrp by doing fastboot flash path/to/twrp.img .then pull the battery when done. Then enter twrp by using to volume key method (hold volume down, press power until the screen turns on, then tap power repeatedly until a menu asking to factory reset appears, say yes (while twrp is installed it won't actually wipe anything).)
Flash a rom (a stock one is here), and magisk.
If you can't use an sdcard to get them accessible to the phone in twrp, in twrp you can go into advanced then sideload and connect to a PC and do adb sideload path/to/rom-or-magisk.zip
Phoenix591 said:
The good news is that you've got the dirtysanta bootloader installed (that's why it's reporting us996) so you should be able to fix it without using LG UP and having to redo most of the process.
Install twrp by doing fastboot flash path/to/twrp.img .then pull the battery when done. Then enter twrp by using to volume key method (hold volume down, press power until the screen turns on, then tap power repeatedly until a menu asking to factory reset appears, say yes (while twrp is installed it won't actually wipe anything).)
Flash a rom (a stock one is here), and magisk.
If you can't use an sdcard to get them accessible to the phone in twrp, in twrp you can go into advanced then sideload and connect to a PC and do adb sideload path/to/rom-or-magisk.zip
Click to expand...
Click to collapse
After use adb fastboot flash recovery twrp.img, there's new problem.
Using volume key mode my screen is blank, just like broken TV.. :crying::crying:
nuqudlover said:
After use adb fastboot flash recovery twrp.img, there's new problem.
Using volume key mode my screen is blank, just like broken TV.. :crying::crying:
Click to expand...
Click to collapse
to totally back out and bring your phone to totally stock use download mode (from powered off hold volume UP while connecting to the pc). The screen will be still messed up but it will still work on the pc.
Use patched LG UP in partition dl mode to flash everything with a stock h990(ds) kdz.
Once you start using dirtysanta next time (if you decide to try again) be very very careful when using LG UP (easier to just use stock flashabile zip) unless you want to redo the above and flash EVERYTHING back to stock (if you ever flash the aboot partition in LG UP and anything ISN'T stock it will brick you! This mostly applies to partition dl mode since upgrade mode flashes everything, but partition dl mode is the only mode you can even potentially flash things and keep root (but I don't encourage this... its easier and saferto just use zips in TWRP to flash firmware (mostly stock basedrom or so called stock flashible zips tend to also flash all of the firmware except parts needed to keep root. )
Phoenix591 said:
to totally back out and bring your phone to totally stock use download mode (from powered off hold volume UP while connecting to the pc). The screen will be still messed up but it will still work on the pc.
Use patched LG UP in partition dl mode to flash everything with a stock h990(ds) kdz.
Once you start using dirtysanta next time (if you decide to try again) be very very careful when using LG UP (easier to just use stock flashabile zip) unless you want to redo the above and flash EVERYTHING back to stock (if you ever flash the aboot partition in LG UP and anything ISN'T stock it will brick you! This mostly applies to partition dl mode since upgrade mode flashes everything, but partition dl mode is the only mode you can even potentially flash things and keep root (but I don't encourage this... its easier and saferto just use zips in TWRP to flash firmware (mostly stock basedrom or so called stock flashible zips tend to also flash all of the firmware except parts needed to keep root. )
Click to expand...
Click to collapse
I already use lgup pacher, when connected the message unknown model
Can i using flash laf.bin from fastbootmode?
nuqudlover said:
I already use lgup pacher, when connected the message unknown model
Can i using flash laf.bin from fastbootmode?
Click to expand...
Click to collapse
But did you use partition dl mode? It alone bypasses the model checks.
Partition dl mode isn't in regular lg up, you need the special patched version I linked (replace the files of your regular lg up with the special version)
Phoenix591 said:
But did you use partition dl mode? It alone bypasses the model checks.
Partition dl mode isn't in regular lg up, you need the special patched version I linked (replace the files of your regular lg up with the special version)
Click to expand...
Click to collapse
I already put your special patched to my Lgup..
nuqudlover said:
I already put your special patched to my Lgup..
Click to expand...
Click to collapse
Try uppercut then. Use upgrade mode if it works but partition dl mode is missing. Note uppercut asks for lg up version 1.14 . I can't remember what version the patched one is but you may have to reinstall that version instead.

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