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So I think I've gone and bricked my LG G3.
After the ROM I was using, cm-13.0-20160322-NIGHTLY-d855 (CM13 March 22nd) from here, kept freezing 20 seconds after startup, I went to update to cm-13.0-20160325-NIGHTLY-d855 (CM13 March 25th). I booted into recovery (TWRP 2.8.7.0) as usual and went to flash both the ROM's .zip file and an Opengapps .zip file using TWRP's queue feature. However, it appeared to get stuck at a line (unfortunately I don't remember what it said exactly. Something involving patching system, I think), so I pulled the battery. I get the feeling this was a super not good thing to do, as my G3 now sits at the "LG - Life's Good" screen indefinitely. Holding Power+Vol.Down does not boot into Recovery, and neither does holding Vol.Up and plugging into my computer activate Download mode.
I tried to be as thorough as I could with exactly the steps I took, so I'm just hoping someone can give me a few pointers on what I can do.
As I type this I had the phone connected to my computer next to me, and I've suddenly heard the Windows "Device connected" sound and the phone is now showing this in the top right corner, in tiny font:
Code:
[784670] Fastboot mode started
[784820] -- reset --
[784820] -- portchange --
Edit: When this occurred, a device named "Android" appeared under the "Other devices" tab in Windows Device Manager. It's got a yellow warning sign next to the icon, and Properties says that the drivers for the device aren't installed.
Perhaps this is relevant to getting it working again.
First you need the adb drivers for lg g3
Then you need proper partitions, depends what your starting system was, before cm..
then simply reflash them
fastboot flash aboot aboot.img
fastboot flash recovery twrp.img (because you don´t have one)
fastboot flash laf laf.img (this should fix the download mode)
Depending on what the system in original was and what the cm package installed...
bender_007 said:
First you need the adb drivers for lg g3
Then you need proper partitions, depends what your starting system was, before cm..
then simply reflash them
fastboot flash aboot aboot.img
fastboot flash recovery twrp.img (because you don´t have one)
fastboot flash laf laf.img (this should fix the download mode)
Depending on what the system in original was and what the cm package installed...
Click to expand...
Click to collapse
Many thanks for the reply.
By ADB drivers for the LG G3, do you mean the Lg United Mobile Driver? I have version 3.13.2 of them, if that's what they are.
When I input the commands
Code:
adb devices
or
Code:
fastboot devices
nothing appears, so are there different drivers I should look for?
I'm not too sure how to "fix" partitions, either, but I'm guessing it requires ADB/fastboot.
The file aboot.img and laf.img, will I need to find somewhere to download them from?
Again, I appreciate the response.
In case you have the drivers not installed (the "android" device without drivers in device manager), try with "google adb driver" ->
or pdanet
however the lg one should be fine (if not -> try one of the ones I mentioned)
bender_007 said:
In case you have the drivers not installed (the "android" device without drivers in device manager), try with "google adb driver" ->
or pdanet
however the lg one should be fine (if not -> try one of the ones I mentioned)
Click to expand...
Click to collapse
I used PdaNet to install the LG drivers, and inputting the command "fastboot devices" now shows
Code:
? fastboot
Inputting "adb devices" does not show anything, however.
I then attempted to flash a recovery, TWRP version 2.8.7.0 with the command "fastboot flash recovery "recovery.img"". However, the phone's screen showed the following:
Code:
[998960] Error: Command never completed
[998960] Error: Auto CMD12 Error
[998960] Error: Command never completed with errors
[998960] Failed Writing block @ 1
How do I fix the partitions and find the files "aboot.img" and "laf.img"?
Thanks for your help so far, I'm glad that there is progress now.
it has to be fastboot flash recovery recovery.img (where recovery.img is twrp.img, twrp.bin, recovery.img or similiar, without any quotations)
What happens when you try to enter TWRP? Are you doing it right? Hold volume down and power ---- wait for lg logo an release for less than a second and keep holding again.
aboot and laf are downloadable or extractable (from KDZ/TOT) -> use bullghosts kdz/tot extractor
bender_007 said:
it has to be fastboot flash recovery recovery.img (where recovery.img is twrp.img, twrp.bin, recovery.img or similiar, without any quotations)
What happens when you try to enter TWRP? Are you doing it right? Hold volume down and power ---- wait for lg logo an release for less than a second and keep holding again.
aboot and laf are downloadable or extractable (from KDZ/TOT) -> use bullghosts kdz/tot extractor
Click to expand...
Click to collapse
I retried the command fastboot flash recovery recovery.img but it resulted in the same output as before.
I followed the exact instructions to enter TWRP but it just stays at the LG logo screen. I've held Power+Vol.Down for about a minute after quickly releasing it+pressing it again at the LG logo, but it just doesn't do anything.
I've found myself a Lollipop KDZ file. The CyanogenMod I was running, however, ran on Android 6.0 Marshmallow. Will I need a Marshmallow KDZ file instead?
check PM - Private Messages
+check out this drivers(I packaged few of them, there is also lg adb, try the ones)
bender_007 said:
check PM - Private Messages
+check out this drivers(I packaged few of them, there is also lg adb, try the ones)
Click to expand...
Click to collapse
I appreciate the offer to use Teamviewer to help me, but I think it would be best if you typed out some instructions in a reply to this thread so that others with the same issue can refer to here.
Solution
I've found a solution to my issue, at least.
Downloading "recovery.img" from here, putting it in the same folder as fastboot, and then using the command
Code:
fastboot boot recovery.img
booted my phone properly, into cm-13.0-20160322-NIGHTLY-d855 (CM13 March 22nd).
However this resulted in all data being erased, including internal storage.
After using Flashify to re-flash TWRP (just in case), everything works as it should.
HexManiacSpeck said:
I've found a solution to my issue, at least.
Downloading "recovery.img" from here, putting it in the same folder as fastboot, and then using the command
Code:
fastboot boot recovery.img
booted my phone properly, into cm-13.0-20160322-NIGHTLY-d855 (CM13 March 22nd).
However this resulted in all data being erased, including internal storage.
After using Flashify to re-flash TWRP (just in case), everything works as it should.
Click to expand...
Click to collapse
Glad you got it working
Regarding teamviewer - it was an exploration mission so I would see how your device behaves, maybe wrong drivers, maybe..100reasons (I certainly would write it in here if there was a better idea on my side)
bender_007 said:
Glad you got it working
Regarding teamviewer - it was an exploration mission so I would see how your device behaves, maybe wrong drivers, maybe..100reasons (I certainly would write it in here if there was a better idea on my side)
Click to expand...
Click to collapse
That's alright, many thanks for your help. I've just heard bad stories regarding Teamviewer and didn't want to risk anything.
HexManiacSpeck said:
That's alright, many thanks for your help. I've just heard bad stories regarding Teamviewer and didn't want to risk anything.
Click to expand...
Click to collapse
No problem, sometimes you have to trust people
There were people who asked for help, installed teamviewer and didn´t gave any control permissions (which is fine). But they were expecting someone is having soo much free time to explain things (which I would if I had time)
cheers, flad you fixed it
Fixed my G3 I was about to send to trash!
HexManiacSpeck said:
I've found a solution to my issue, at least.
Downloading "recovery.img" fromhere, putting it in the same folder as fastboot, and then using the command
Code:
fastboot boot recovery.img
booted my phone properly, into cm-13.0-20160322-NIGHTLY-d855 (CM13 March 22nd).
However this resulted in all data being erased, including internal storage.
After using Flashify to re-flash TWRP (just in case), everything works as it should.
Click to expand...
Click to collapse
Thanks a million for pointing to this recovery file!
I was also in a situation where all my attempts to flash a recovery were failing due to:
Failed Writing block @ 1
Click to expand...
Click to collapse
The rest of my phone was unusable (no working recovery, no download mode, just the LG logo or this fastboot mode)
I tried several TWRP recovery versions & flavors, but so far, I only successfully reboot in recovery using CyanogenMod recovery file (download.cyanogenmod.org/?device=d855). Though I was not able to do much afterwards apart some adb commands that were not working either.
Code:
dd if=/dev/zero of=/dev/block/mmcblk0p20
dd: /dev/block/mmcblk0p20: write error: I/O error
This recovery img did the trick and I'm now back with a CyanogenMod ROM and a wiped phone.
Alright here's the story. I was trying to put CM on this rooted LP 5.0.1 tmobile d851 (20e i think). I backed up and removed the LAF in order to access fastboot so i could flash the custom recovery. fastboot would send the recovery, but the phone would never actually flash the img to the device and report done. Even "fastboot reboot" did nothing. "fastboot devices" reported the serial as "?" and no driver or Arch/CentOS/other windows installs would get fastboot working. fastboot showed up as Marshal london bootloader in device manager.
So then i tried using flash_image from inside of rooted LP to flash the recovery however i ran into PIE errors that could be fixed by replacing /usr/bin/linker. So I found a patched version, rm -rf the old one and tried to cp in the new one. This seemed like a totally valid idea from my linux experience. Buuuut crap. Nothing works. No commands are accepted because I deleted linker. I rebooted cause I had no better alternative and i get a dead android "no command".... Looks like I found the single best way to kill an android installation.
Now im really stuck because i cant use download mode (LAF) to restore because it has been deleted to access fastboot and fastboot wont actually do anything so I can't restore the laf. There is no custom recovery. The stock recovery adb sideload will only let me install OTAs and far as i know there isn't a FULL OTA that will restore the entire system. I even tried the qualcomm 9008 hard brick method with boardDiag, but that doesnt work on tmobile.
I see a few options:
Somehow get fastboot and then download mode working
Wait for a 6.0 OTA and hope it updates the linker bin
advise?
also, the LG logo appears on screen and the LG serial port (the one used for the LG flasher tool) is present in my device manager for a good 15secs before the no command android shows up. I tried lg flasher tool with this time window but it always cut out before the tool could get anywhere.
Edit: This is what the fastboot process would look like:
Screen right after fastboot boot:
[500] Fastboot mode started
[600] -- reset --
[610] -- portchange --
[710] fastboot: processing commands
fastboot erase aboot brings:
erasing 'aboot' ... on command prompt
and
[346290] fastboot: getvarartition-type:aboot
[346350] fastboot: erase:aboot
after those appear it just hangs like that
unplugging it after that command gives me:
FAILED (status read failed (Too many links))
finished. total time: 164.350s
on cmd
and
[514820] -- reset --
[514820] EP1/out FAIL nfo=40 p0=f90bao0
[514830] -- portchange --
[514840] usb_read(0) transaction failed
[514890] fastboot: oops!
[514940] fastboot: processing commands
Click to expand...
Click to collapse
Did you ever find a fix for this?
No, its either professional jtag, or maybe the MM stock ota update zip will fix it if it includes the linker. i havent found this ota on the Internets yet though.
i just had the same problem. any fixes?
flash laf via fastboot
sirbow2 said:
Alright here's the story. I was trying to put CM on this rooted LP 5.0.1 tmobile d851 (20e i think). I backed up and removed the LAF in order to access fastboot so i could flash the custom recovery. fastboot would send the recovery, but the phone would never actually flash the img to the device and report done. Even "fastboot reboot" did nothing. "fastboot devices" reported the serial as "?" and no driver or Arch/CentOS/other windows installs would get fastboot working. fastboot showed up as Marshal london bootloader in device manager.
So then i tried using flash_image from inside of rooted LP to flash the recovery however i ran into PIE errors that could be fixed by replacing /usr/bin/linker. So I found a patched version, rm -rf the old one and tried to cp in the new one. This seemed like a totally valid idea from my linux experience. Buuuut crap. Nothing works. No commands are accepted because I deleted linker. I rebooted cause I had no better alternative and i get a dead android "no command".... Looks like I found the single best way to kill an android installation.
Now im really stuck because i cant use download mode (LAF) to restore because it has been deleted to access fastboot and fastboot wont actually do anything so I can't restore the laf. There is no custom recovery. The stock recovery adb sideload will only let me install OTAs and far as i know there isn't a FULL OTA that will restore the entire system. I even tried the qualcomm 9008 hard brick method with boardDiag, but that doesnt work on tmobile.
I see a few options:
Somehow get fastboot and then download mode working
Wait for a 6.0 OTA and hope it updates the linker bin
advise?
also, the LG logo appears on screen and the LG serial port (the one used for the LG flasher tool) is present in my device manager for a good 15secs before the no command android shows up. I tried lg flasher tool with this time window but it always cut out before the tool could get anywhere.
Edit: This is what the fastboot process would look like:
Click to expand...
Click to collapse
download laf file for your model and flash it....
"fastboot erase laf" then
"fastboot flash laf laf.img"
"fastboot reboot"
Then try to put your phone into download mode.
nibedankaran said:
download laf file for your model and flash it....
"fastboot erase laf" then
"fastboot flash laf laf.img"
"fastboot reboot"
Then try to put your phone into download mode.
Click to expand...
Click to collapse
thanks for the reply, but as i mentioned in my post, fastboot commands don't work. i wish it was that easy.
nibedankaran said:
download laf file for your model and flash it....
"fastboot erase laf" then
"fastboot flash laf laf.img"
"fastboot reboot"
Then try to put your phone into download mode.
Click to expand...
Click to collapse
I think you have a serious problem
You have to see google fix lg g3 on Qualcomm mode...I mean hard brick fix....
Download as instructed
I think it will be fixed
Recently I fixed lg g3 from only led blink no signal to pc and only vibrate and others
That doesn't work on tmobile G3s, thanks though. I did try it anyways btw.
Getting the update.zip from a friend. its in the SD card but its not showing up in MTP so were trying to figure that out. once i have the zip ill try flashing it. if it doesnt work, itll get a octoplus jtag flash.
Well the update did not like the fact that this phone was missing the linker bin or the previous root because it fails when checking the current system. Looks like octoplus is the only way cause i'm an idiot.
Anyone know where i can send this to get it done? i thought some people on ebay did it but i cant find them.
I have same problem, no download mode, system corrupted and recovery is useless.
mysteryjeans said:
I have same problem, no download mode, system corrupted and recovery is useless.
Click to expand...
Click to collapse
If it's a tmobile G3 (d851) you have no choice but send it to someone for an octoplus jtag service because the DIY jtag method doesn't work. Got mine done for $42 after shipping from an ebay service.
sirbow2 said:
If it's a tmobile G3 (d851) you have no choice but send it to someone for an octoplus jtag service because the DIY jtag method doesn't work. Got mine done for $42 after shipping from an ebay service.
Click to expand...
Click to collapse
Finally I recovered it, I have to short testpoint then connect cable to PC, my device is dual sim therefore different logic board, see this http://forum.xda-developers.com/lg-g3/help/lg-d858-qualcomm-test-location-t3293440 for D856/7/8 testpoint to get device into Qualcomm 9008 mode, then I had flash F400K (yes korean rom) tot from thread http://forum.xda-developers.com/showthread.php?t=2785089 using BoardDiagv2.99 http://forum.xda-developers.com/sprint-lg-g3/general/guide-fix-hard-brick-recovery-guide-t3132359 to get it live and get into download mode.
Now finally flashed stock KDZ using this post http://forum.xda-developers.com/showpost.php?p=64624353&postcount=3
If I knew there is new tool to flash MM stock, I wouldn't brick my device. :silly:
Thats exactly what i tried but didn't work because D851
Hey all,
I was on android P and wanted to go back to Oreo so i booted twrp and wiped system/data and then afterwards, fastboot is giving me errors and i cant even boot twrp to my phone it just says remote: unknown command. Heres a pic https://imgur.com/a/odn4w
edit: i was able to get the feb image to flash but now im stuck at the loading G screen. If i open fastboot and try fastboot boot twrp i get unknown command. See here https://imgur.com/a/Ropme
Hold the power button while at no command. Then hit volume up and release both. That will give you the menu.
Get rid of minimal adb and fastboot. I don't understand why people are using something made before even the original pixels were released. It doesn't understand dual partitions or handle the larger sizes of our partitions. Get adb and fastboot from Google.
joedajoester said:
Hey all,
I was on android P and wanted to go back to Oreo so i booted twrp and wiped system/data and then afterwards, fastboot is giving me errors and i cant even boot twrp to my phone it just says remote: unknown command. Heres a pic https://imgur.com/a/odn4w
edit: i was able to get the feb image to flash but now im stuck at the loading G screen. If i open fastboot and try fastboot boot twrp i get unknown command. See here https://imgur.com/a/Ropme
Click to expand...
Click to collapse
Try a different USB port.
Ensure you have USB drivers installed first.
TonikJDK said:
Hold the power button while at no command. Then hit volume up and release both. That will give you the menu.
Get rid of minimal adb and fastboot. I don't understand why people are using something made before even the original pixels were released. It doesn't understand dual partitions or handle the larger sizes of our partitions. Get adb and fastboot from Google.
Click to expand...
Click to collapse
Problem is for sure the Minimal setup.
Only setup to use (ever) is here: https://dl.google.com/android/repository/platform-tools-latest-windows.zip
Updated regularly.
michaelbsheldon said:
Problem is for sure the Minimal setup.
Only setup to use (ever) is here: https://dl.google.com/android/repository/platform-tools-latest-windows.zip
Updated regularly.
Click to expand...
Click to collapse
I am using that platform tools and i still get the remote:unknown command error. Any idea what i should do? I already factory reset and relocked and unlocked the bootloader and critical. I cant even boot twrp to flash magisk. it broke when i was on android p i booted twrp and wiped system data cache from slot a and b. Reboot and then fastboot was wonky like it still is now.
joedajoester said:
I am using that platform tools and i still get the remote:unknown command error. Any idea what i should do? I already factory reset and relocked and unlocked the bootloader and critical. I cant even boot twrp to flash magisk. it broke when i was on android p i booted twrp and wiped system data cache from slot a and b. Reboot and then fastboot was wonky like it still is now.
Click to expand...
Click to collapse
Just curious, but when your in the OS, and open a command prompt on the platform-tools folder and type...adb devices...do you see your device ID?? Same thing for when your in bootloader mode and type...fastboot devices...??? ?
did you fix this? im in the same boat, on p beta tried to flash factory image back to 8.1 and getting "target didn't report max download size".
Im using platform tools
OP, have you managed to solve the issue?
I ran into a lot of trouble updating June OTA and had the same error. Tried to change ports, USB cables, etc. and just when I was about to give up, I decided to restart my PC and tried again, this time things worked fine without any issue whatsoever.
This is likely not your issue, but if your computer has less than 4 gigs of RAM, or you are trying to flash a file larger than your available RAM you will get this message.
This (i.e. rebooting PC) worked
DanteXXL said:
OP, have you managed to solve the issue?
I ran into a lot of trouble updating June OTA and had the same error. Tried to change ports, USB cables, etc. and just when I was about to give up, I decided to restart my PC and tried again, this time things worked fine without any issue whatsoever.
Click to expand...
Click to collapse
This indeed worked when I rebooted my pc.
Hi all,
I installed TWRP on my Honor 7x, that went well.
Yesterday I decided to try to get Lineage working so:
- I installed EMUI 8, that went pretty smooth
- I installed Lineage OS 15.1. (without GApps)
- I flashed TWRP.
The issue I have now is that:
1) I can't install any APK in Lineage. Probably needs a factory reset/dalvik cache wipe.
2) I can't boot into TWRP. It stays stuck on the splash screen forever. This also means I can't install OpenGapps, SuperUser access (afaik), or anything else that requires root.
3) The bootloader is saying "FRP: Locked", which means I can't flash a new TWRP or a different ROM. When I try it fails with "command not allowed"
3) "fastboot oem unlock" fails saying I need to enable it in the developer options, but it's grayed out in the developer options because it's already unlocked.
4) I wanted to try the "dload" method but I can't find a good explanation on how to do it, and Huawei recently took all their downloads down, which means I can't find any UPDATE.app even if I knew how.
5) The other solution that *might* work is using "fastboot oem frp-unlock", but I need an unlock code for that (I assume the same one that you request for an OEM unlock from Huawei), and Huawei closed down the site that generated the codes.
So I'm stuck in a weird limbo where I can't move forward (install Gapps and use my phone as normal) nor backwards (go back to EMUI8).
Does anyone have any idea how I can fix this situation?
Shadowsalyer said:
Hi all,
I installed TWRP on my Honor 7x, that went well.
Yesterday I decided to try to get Lineage working so:
- I installed EMUI 8, that went pretty smooth
- I installed Lineage OS 15.1. (without GApps)
- I flashed TWRP.
The issue I have now is that:
1) I can't install any APK in Lineage. Probably needs a factory reset/dalvik cache wipe.
2) I can't boot into TWRP. It stays stuck on the splash screen forever. This also means I can't install OpenGapps, SuperUser access (afaik), or anything else that requires root.
3) The bootloader is saying "FRP: Locked", which means I can't flash a new TWRP or a different ROM. When I try it fails with "command not allowed"
3) "fastboot oem unlock" fails saying I need to enable it in the developer options, but it's grayed out in the developer options because it's already unlocked.
4) I wanted to try the "dload" method but I can't find a good explanation on how to do it, and Huawei recently took all their downloads down, which means I can't find any UPDATE.app even if I knew how.
5) The other solution that *might* work is using "fastboot oem frp-unlock", but I need an unlock code for that (I assume the same one that you request for an OEM unlock from Huawei), and Huawei closed down the site that generated the codes.
So I'm stuck in a weird limbo where I can't move forward (install Gapps and use my phone as normal) nor backwards (go back to EMUI8).
Does anyone have any idea how I can fix this situation?
Click to expand...
Click to collapse
small chance you enable root from developer options. (i think it will be adb only)
if so , maybe can use adb shell and "dd" to write recovery to correct partition.
problem is many of the available twrp do not boot on custom rom .
example code. (if you do wrong , it may be bad)
Code:
dd if=/ext_sdcard/twrp_Recovery_ramdisk.img of=/dev/block/mmcblk0p32
It seems like I'm allowed to use dd in ADB shell, but before I run it, what do you mean by " problem is many of the available twrp do not boot on custom rom . "? I thought recovery was independent of the ROM? And does it mean flashing twrp like that could brick my phone?
Shadowsalyer said:
It seems like I'm allowed to use dd in ADB shell, but before I run it, what do you mean by " problem is many of the available twrp do not boot on custom rom . "? I thought recovery was independent of the ROM? And does it mean flashing twrp like that could brick my phone?
Click to expand...
Click to collapse
Like what you have , twrp stuck on splash screen
I managed to unlock the FRP with DC-unlocker. Sucks that it costs money but it worked!
Now Im stuck in a TWRP boot loop though.
Shadowsalyer said:
I managed to unlock the FRP with DC-unlocker. Sucks that it costs money but it worked!
Now Im stuck in a TWRP boot loop though.
Click to expand...
Click to collapse
At this point you should have access to fastboot though, right? I'd try a different TWRP instead. Perhaps try this one: https://drive.google.com/file/d/1ZYo7Ndte3vlLcUSadD6jIgfBi1oxa0Pb/view?usp=drivesdk
Just to clarify, it gets stuck on TWRP splash screen. When I turn off the phone, it immediately boots up again into TWRP. I tried getting into fastboot mode with all kinds of combinations of button presses, but no luck. Not even Volume Up + USB cable works
smokinjoe2122 said:
At this point you should have access to fastboot though, right? I'd try a different TWRP instead. Perhaps try this one: https://drive.google.com/file/d/1ZYo7Ndte3vlLcUSadD6jIgfBi1oxa0Pb/view?usp=drivesdk
Click to expand...
Click to collapse
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.
Shadowsalyer said:
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.
Click to expand...
Click to collapse
I have seen this happen before , solution was to wait for dead battery, or disassemble to unplug battery
---------- Post added at 04:51 PM ---------- Previous post was at 04:47 PM ----------
Shadowsalyer said:
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.
Click to expand...
Click to collapse
This is because after the frp unlock, it needed to see a factory reset, and it usually needs to be done with stock recvery.
So will have to wait till battery is dead and and plug in usb while holding volume button. Should then load to fastboot. Where it is best to flash stock recovery to clear the recovery bootloop. The bootloop is do to the fact yo unlocked frp and now phone needs to wipe/data
Shadowsalyer said:
Sorry, only saw your answer after sending my other reply. In theory I should have access to fastboot mode. However, everytime I start up I get into TWRP, which doesn't work. I tried Volume up, volume down, both, with and without power button, with and without cable, and no dice.
Click to expand...
Click to collapse
it sucks this happened to yu but im glad i am not the only one that dc-unlocker deleted my fastboot after i unlocked the frp and i cant boot fastboot for nothing if you find a solution please contact me. my phone is doing the exact same thing booting straight too twrp no mater what combinations i use
dcraffam said:
it sucks this happened to yu but im glad i am not the only one that dc-unlocker deleted my fastboot after i unlocked the frp and i cant boot fastboot for nothing if you find a solution please contact me. my phone is doing the exact same thing booting straight too twrp no mater what combinations i use
Click to expand...
Click to collapse
i just took mine apart and discconected the battery and still no luck that program deleted my fastboot
Please can you tell me the process to install twrp I have the L24
I waited all the way till the battery drained, stuck in the USB, and it booted to ROM! Sadly it immediately shut off again because the battery is dead (even with keeping the USB in). I'm going to keep trying though.
I can't get into fastboot mode. I can get into the ROM by letting the battery drain completely on the TWRP splashscreen, and then sticking in the USB cable. However, no button combination or "adb reboot bootloader" or rebooting to bootloader from the ROM brings me to the bootloader. I wonder if it's still there. Any ideas?
Shadowsalyer said:
I can't get into fastboot mode. I can get into the ROM by letting the battery drain completely on the TWRP splashscreen, and then sticking in the USB cable. However, no button combination or "adb reboot bootloader" or rebooting to bootloader from the ROM brings me to the bootloader. I wonder if it's still there. Any ideas?
Click to expand...
Click to collapse
Seems to be a f-up situation either way.
You have adb DD available, found out before.
Don't know if maybe flashing stock recovery is good idea at this point.
I think fastboot.img can be flashed with DD too, but don't try till someone can confirm.
If flash stock recovery clears the loops, maybe best to do full-ota manual flashing.
I managed to get an UPDATE.APP file and extract fastboot.img from it, as well as all the other .img files. If someone can tell me what to flash and how (with dd), I think Im set.
Shadowsalyer said:
I managed to get an UPDATE.APP file and extract fastboot.img from it, as well as all the other .img files. If someone can tell me what to flash and how (with dd), I think Im set.
Click to expand...
Click to collapse
Fastboot.img is the large part the bootloader. If flashing it goes bad, might be dead phone after, just rember that.
Will add a list of partition names and command s for you soon.
here is a list of oreo partitions and there /dev/blk/** number
and here is an example of code to save images with dd assuming you put the images on your extrnal-sdcard in folder called oreo-images
Code:
dd if=/dev/block/mmcblk0p5 of=/mnt/ext_sdcard/oreo-images/fastboot.img
Do that save first and compare the md5 of the file from update.app to this file.
or just check the md5 before making the copy
Code:
adb shell md5sum /dev/block/mmcblk0p5
If you are conviced you need to flash the images, here is example of writing the image assuming files are in sdcard folder oreo-update-images
Code:
dd if=/mnt/ext_sdcard/oreoupdate-images/fastboot.img of=/dev/block/mmcblk0p5
As I have said, this might be bad advise , I have not done fastboot.img flashing before. But on other devices it is same as lk.img or uboot.img, There is danger in flashing it incorrectly. That is why my suggestion was to flash no-check-recovery and do manael update with "echo -update_package" commands.
Along with the statement that fastboot.img is similar to lk.img or uboot.img on other phones, Your fastboot cannot be gone. because phone boots.
but do let us know how it goes.
I agree it would be better to flash recovery if possible. I assume I need the NoCheck-Recovery image from this thread? https://forum.xda-developers.com/honor-7x/how-to/manual-update-to-oreo-beta-emui-8-bnd-t3767044
And what partition do I have to flash it to? I'm guessing either /dev/block/mmcblk0p28 (erecovery ramdisk) or /dev/block/mmcblk0p32 (recovery ramdisk)? I'm not sure what the difference is between erecovery and normal recovery.
(didn't flash fastboot yet, wanted to see if recovery was doable).
Shadowsalyer said:
I agree it would be better to flash recovery if possible. I assume I need the NoCheck-Recovery image from this thread? https://forum.xda-developers.com/honor-7x/how-to/manual-update-to-oreo-beta-emui-8-bnd-t3767044
And what partition do I have to flash it to? I'm guessing either /dev/block/mmcblk0p28 (erecovery ramdisk) or /dev/block/mmcblk0p32 (recovery ramdisk)? I'm not sure what the difference is between erecovery and normal recovery.
(didn't flash fastboot yet, wanted to see if recovery was doable).
Click to expand...
Click to collapse
To recovery_ramdisk. 32
What about check md5 of fastboot partition, that will be helpful to know if it did get wiped out.?
Hmm seems like I'm not allowed to use dd after all:
HWBND-H:/ $ dd if=/storage/7C96-7E17/BND-RECOVERY-NoCheck.img of=/dev/block/mmcblk0p32
dd: /dev/block/mmcblk0p32: Permission denied
And here I was thinking I was close to solving it...
Also can't run md5sum on the fastboot partition, since that needs root as well.
Hi and thanks for reading--
I followed this guide for my new LG820UMBK Verizon Unlocked:
Guide LG G8/G8x/v50 Bootloader Unlock and Magisk Root using Firehose
Disclaimer: I am not responsible for any problems from using this guide. Works for G8, G8s, G8x, and v50 Confirmed working on G8 and v50 Requirements: Android 10 QFIL...
forum.xda-developers.com
I flashed the engineer abl_a and abl_b and my first hangup was to enter Fastboot mode I hold Vol+ instead of Vol- as the guide says. But it tooks several reboots and flashing back to the backup abl to figure that out. My device in Fastboot mode isnt recognized by my PC with the fastboot devices command. It is recognized by Device Manager however as Other devices: Android.
Upon boot it gets stuck at VZW splash screen. I can enter EDL mode but when I try to restore my backup abl_a+b it says Data Overflow do you wish to continue. If I select yes it wont flash the backup abl with the size of 32,768 kb. It leaves the abl files at 1,024 kb which was the size of the engineer file.
I can boot to Fastboot but my fastboot devices commands can't see the device. In Device Manager like I said in Fastboot mode it just shows up as Other Devices: Android. On the Verizon spash screen it appears in Device Manager as LGE AndroidNet USB Serial Port (COM3) and in EDL mode it shows up under Ports as: Qualcomm HS-USB QDLoader 9008 (COM11).
I ran the LG Mobile Support Tool and it installed all the proper drivers it says. Maybe I dont have the adb/fastboot drivers? I tried to find them in the SDK but its way more complicated than it used to be. I havent rooted since the LG G2 lol.
Any ideas or help would be so awesome. Its basically bricked cause I cant flash the ABL backups. LGUP program doesn't recognize the device, I did download the correct G820UM20i_00_VZW_US_OP_1124.kdz file so maybe i'll just attempt to restore the stock rom. Can I do that with QFIL??
I cant believe I'm the only person this happened to....
Thanks for any thoughts!!
durrant111 said:
Hi and thanks for reading--
I followed this guide for my new LG820UMBK Verizon Unlocked:
Guide LG G8/G8x/v50 Bootloader Unlock and Magisk Root using Firehose
Disclaimer: I am not responsible for any problems from using this guide. Works for G8, G8s, G8x, and v50 Confirmed working on G8 and v50 Requirements: Android 10 QFIL...
forum.xda-developers.com
I flashed the engineer abl_a and abl_b and my first hangup was to enter Fastboot mode I hold Vol+ instead of Vol- as the guide says. But it tooks several reboots and flashing back to the backup abl to figure that out. My device in Fastboot mode isnt recognized by my PC with the fastboot devices command. It is recognized by Device Manager however as Other devices: Android.
Upon boot it gets stuck at VZW splash screen. I can enter EDL mode but when I try to restore my backup abl_a+b it says Data Overflow do you wish to continue. If I select yes it wont flash the backup abl with the size of 32,768 kb. It leaves the abl files at 1,024 kb which was the size of the engineer file.
I can boot to Fastboot but my fastboot devices commands can't see the device. In Device Manager like I said in Fastboot mode it just shows up as Other Devices: Android. On the Verizon spash screen it appears in Device Manager as LGE AndroidNet USB Serial Port (COM3) and in EDL mode it shows up under Ports as: Qualcomm HS-USB QDLoader 9008 (COM11).
I ran the LG Mobile Support Tool and it installed all the proper drivers it says. Maybe I dont have the adb/fastboot drivers? I tried to find them in the SDK but its way more complicated than it used to be. I havent rooted since the LG G2 lol.
Any ideas or help would be so awesome. Its basically bricked cause I cant flash the ABL backups. LGUP program doesn't recognize the device, I did download the correct G820UM20i_00_VZW_US_OP_1124.kdz file so maybe i'll just attempt to restore the stock rom. Can I do that with QFIL??
I cant believe I'm the only person this happened to....
Thanks for any thoughts!!
Click to expand...
Click to collapse
So I forgot to eject my micro SD card, I know so dumb. I am now able to fastboot. I tried to flash the original abl_a and b with fastboot and it is telling me Error Flashng Partition: Volume Full. Same issue I was having in QFIL basically. How do I restore the abl files ughhhhh.
you can fomat data : - and power before click power
durrant111 said:
So I forgot to eject my micro SD card, I know so dumb. I am now able to fastboot. I tried to flash the original abl_a and b with fastboot and it is telling me Error Flashng Partition: Volume Full. Same issue I was having in QFIL basically. How do I restore the abl files ughhhhh.
Click to expand...
Click to collapse
Boot to EDL mode by holding the vol - and power button while your G8 is plugged in your computer, after you hear a disconnection sound immediately press the vol + until you hear a connection sound from your computer.
Now, open QFIL then look for the abl a and b then flash your backed up abl_a nd abl_b accordingly and reboot. And you're good to go again.
I can help you. Do you fix problem ???
I am having some issues with rooting my g8 at&t I managed to successfully unlock the bootloader but now I am stuck in a bootloop after trying to flash magisk. I can start in edl mode or download mode and that is all. My phone flashes the lg splash screen for a split second over and over it doesn't matter if I flash my backup adl files or boot files it just keeps doing the same thing. What am I missingm
Anybody?
Ratty696 said:
Anybody?
Click to expand...
Click to collapse
.
Ratty696 said:
I am having some issues with rooting my g8 at&t I managed to successfully unlock the bootloader but now I am stuck in a bootloop after trying to flash magisk. I can start in edl mode or download mode and that is all. My phone flashes the lg splash screen for a split second over and over it doesn't matter if I flash my backup adl files or boot files it just keeps doing the same thing. What am I missingm
Click to expand...
Click to collapse
Gonna need more details. What steps did you take to try to flash magisk that resulted in the bootloop?
armodons said:
Gonna need more details. What steps did you take to try to flash magisk that resulted in the bootloop?
Click to expand...
Click to collapse
Used method in beginning of this thread. Tried flashing backup
armodons said:
Gonna need more details. What steps did you take to try to flash magisk that resulted in the bootloop?
Click to expand...
Click to collapse
I used the method in that thread to unlock and try to root. When I flashed majisk is when my problem started. I have tried flashing the backup files I made but that doesn't help either
Ratty696 said:
Used method in beginning of this thread. Tried flashing backup
I used the method in that thread to unlock and try to root. When I flashed majisk is when my problem started. I have tried flashing the backup files I made but that doesn't help either
Click to expand...
Click to collapse
So you are saying you bootloop after you use QFIL to flash Magisk-patched boot_a and boot_b? Do "backup files" mean the original boot_a and boot_b that you flash back using QFIL?
If so, you should double check you are flashing the correct partitions in QFIL because neither of these steps seem like they can result in bootloop. LGUP and start over.
armodons said:
So you are saying you bootloop after you use QFIL to flash Magisk-patched boot_a and boot_b? Do "backup files" mean the original boot_a and boot_b that you flash back using QFIL?
If so, you should double check you are flashing the correct partitions in QFIL because neither of these steps seem like they can result in bootloop. LGUP and start over.
Click to expand...
Click to collapse
Yes when I used QFIL to flash magus isvwgen it started abd flashung original boot_a and boot_b dont fix it. I can't get kdz file for at&t to lg up.
Ratty696 said:
Yes when I used QFIL to flash magus isvwgen it started abd flashung original boot_a and boot_b dont fix it. I can't get kdz file for at&t to lg up.
Click to expand...
Click to collapse
Is there any place to get the KDZ file for the AT&T g8? I got someone claiming to have it but want me to prepay $30 for it
Nobody able to help me?
Ratty696 said:
Nobody able to help me?
Click to expand...
Click to collapse
I'm new to the G8 (not LG), so just now browsing these posts.
First and foremost, this thread shouldn't be in this forum. This forum is for roms, kernels, recoveries and other development.
This thread is a question about a guide (which is in guides forum). This 'question' is not development of a rom, kernel or recovery, it's a question.
I'd suggest, if you want people to respond that can help, ask the question in it's individual guide thread, that's where the people that know the most about it will be. If you get no response in that thread, then maybe think about posting the question in the questions forum.
but here? in dev forum? absolutely the wrong place for a question about a guide.
cheers
Thread moved to Q&A section.
Thanks!
woodman
Senior Moderator
@durrant111
So to the original OP; 2 things; If your device isn't recognized when in fastboot mode, that's because you don't have the right driver installed in WinBlows.
You have to download the LG USB drivers, install them, then in device manager select the "! Android" and install the driver (usually says ADB) and then 'fastboot devices' will see the phone.
Second; if you ever get a message telling you that 'Data Overflow' then you are absolutely making a big mistake. When you did the backup of your abl(s) (and other partitions), you should have renamed then one by one, that way you don't make the mistake of naming the laf_a partition as the abl_a partition (or any name other than what ti should be). If you flash the wrong partition you run the risk of overwriting the nearby partition, which would make the device essentially unusable except only to qfil.
Lastly, yer lucky the device is VZW, as they make their kdz available and you can use use lg up to get back to stock. If it was Sprint or At&t you'd be scrambling to find a qfil or bkerler backup someone luckily made that you come across (a much more unlikely scenario).
Good luck, you've probably already moved on from this, but just in case, thought I'd mention the above.
cheers
Ratty696 said:
Is there any place to get the KDZ file for the AT&T g8? I got someone claiming to have it but want me to prepay $30 for it
Click to expand...
Click to collapse
Unfortunately at&t doesn't make their kdz available. You can be 99.9% positive the only thing this person that wants to charge you 30$ is going to give you is the partitions backed up by qfil or bkerler edl stuff.
With both at&t and sprint, because no kdz, you can only restore (if you didn't back up the files yourself originally), with someone elses backup, and then you have to use qfil or bkerler edl utilities to restore. If you look around in the G8 forums (or the tele group), there's a decent chance someone has already make their backup available.
cheers and good luck.
Ratty696 said:
Nobody able to help me?
Click to expand...
Click to collapse
Could you solve your problem?
I also have an at&t lg g8 and I want to unlock the bootloader
Yarib said:
Could you solve your problem?
I also have an at&t lg g8 and I want to unlock the bootloader
Click to expand...
Click to collapse
Lol no still haven't solved my problem. I need the abl_a and abl_b files for a lg g8 at&t. My phone only goes in fastboot or qfil and Fastboot says its a lmg850um because I tried using the files from my lg g8x and it didn't work. I have also now bricked my lg g8x it only boots into qfil. Any help would be great. My g8x is canada version