I've already tried http://forum.xda-developers.com/showthread.php?t=2432476 and several other threads and I've run into different problems for all of them.
I can boot into download mode. The drivers are installed and seem to be working (it says LG D801 in Device Manager). I've tried both methods in the thread above. The first one doesn't work at all because the phone has to be booted in normal mode.
The second one doesn't work either. I get to where the FlashTool says READY, but when I plug the phone in while download mode is on, nothing happens. I thought this might be the COM port, so I went to change it in Device Manager, but the option isn't even available. The tab isn't available in the device properties.
There are several old zips I have on the phone that I've tried flashing, no dice. The LG Mobile Support Tool (that allows you to update the phone) just says that the software is up to date and won't let me do anything.
I'm going in circles now trying to fix this, anyone know what to do?
Thanks!
edit: adb also doesn't recognize the device. I think it might work to install TWRP and use the command in http://forum.xda-developers.com/showthread.php?t=2451696 from the phone, but I don't know how to replace CWM with TWRP.
edit 2: got adb working by installing the pdanet driver! I installed TWRP so I'm on that now. The commands in that thread still don't work though.
if you have adb access you should be able to use the first command from here to boot normally
XxZombiePikachu said:
if you have adb access you should be able to use the first command from here to boot normally
Click to expand...
Click to collapse
Thank you, however adb does not recognize it. adb devices returns nothing.
vvfs said:
Thank you, however adb does not recognize it. adb devices returns nothing.
Click to expand...
Click to collapse
well to install twrp you would just need to flash the zip from inside cwm, but if adb doesn't recognize the device then you cant adb push
XxZombiePikachu said:
well to install twrp you would just need to flash the zip from inside cwm, but if adb doesn't recognize the device then you cant adb push
Click to expand...
Click to collapse
So I'm SOL?
XxZombiePikachu said:
well to install twrp you would just need to flash the zip from inside cwm, but if adb doesn't recognize the device then you cant adb push
Click to expand...
Click to collapse
I got adb working now and installed TWRP, but the commands in the thread you posted didn't fix anything.
I've flashed a couple of ROMs and it still boots to recovery.
okay so you already tried dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota and dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/misc from the terminal inside twrp(one after the other), also since you got adb working did you try the ones through adb dd if=/dev/block/platform/msm_sdcc.1/by-name/fota of=/sdcard/fota-backup.img and dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota
Related
Ok, so rooted (razorclaw) ics 4.0.3 tf-101.
fully charged
when powering on, stalls at the eee pad screen. (sounds like a boot loop, but it doesn't go to recovery)
Cold boots fine, works great, no random reboots (yet)
Will not boot into recovery, has ww_epad-9.2.1.11-20120221 bootloader
stalls at "booting kernel image" I assume there is no recovery installed.. Tried to get cwm onto it but I cant get apx working, it wont recognize the device at all.
I didn't root it, someone else did and I have no idea what recovery is/was on it.
I bought the tablet used, and would like to fix it.
Once recovery is installed would this boot normally.
Ive been searching on here/transformer forums for a couple weeks and have thought I found the answer multiple times. I need a push in the right direction.
Tried to fix this for a while a couple months ago when ics first launched and gave up. (did the same thing when It had honeycomb on it)
edit::
the only solution I can come up with is using NVFLASH to try to restore it. Working on this right now, hopefully this is a sbk1//not working, cant seem to get the computer to recognize the device in apx mode. (win 7)
If your TF is rooted, you may want to give the RecoveryInstaller app a go.
http://forum.xda-developers.com/showthread.php?t=1346180&highlight=recovery
I forgot to add that I have tried that (tried it again just now.. twice, just incase it happened to work but it didnt.)
following these instructions:
"click the button and the Superuser app will ask for permissions. Then the tablet reboots and to enter it you have to keep the Volume - key pressed and when it the TF writes "Booting into recovery" on the screen press Volume + once"
also tried it without holding volume buttons when it reboots.
When I run it, and click the button to install recovery, it grants superuser permissions and then reboots, sticks at the eee pad screen again and it stalls at booting recovery kernal image. Anything Im missing?
Reflash a recovery image .sos and bootloader .ebt if the recovery image doesn't work.
Download any cwm flashable recovery and extract it twice to get the recovery blob out:
put the recoveryblob on your computer somewhere.
adb push C:\Location\Of\Blob\blob.blob /sdcard/
adb devices
adb shell
su
dd if=/sdcard/blob.blob of=/dev/block/mmcblk0p4 -
reboot
--
this should fix recovery.
Thanks for breaking that down! Im going to try this once I can get adb working.
Going to try another computer now. I'm beginning to wonder if the usb cord for my tf has gone bad.
You can do it on your tf too, via terminal emulator app since you can coldboot.
Download blob somewhere on tf, download term em. and run this part:
su
dd if=/Path/to/recoveryblob of=/dev/block/mmcblk0p4 -notice path/to is where you placed on Tf's INTERNAL storage.
reboot
Ok, went through it on the terminal emulator. Everything seemed to go ok, but on rebook, it still wont enter recovery (held the vol button of course) just hangs on "booting recovery kernal image"
Is BusyBox installed?
That it is, just reinstalled 1.20.. should i use a different version perhaps?
Ro.secure set to 0?
see the guide to flashing an insecure boot.img if it isn't, this may be the problem.
if you're on a rom this isn't the issue..
Try a different version of BB I suppose
simplywinter said:
Ok, went through it on the terminal emulator. Everything seemed to go ok, but on rebook, it still wont enter recovery (held the vol button of course) just hangs on "booting recovery kernal image"
Click to expand...
Click to collapse
Suggest you try method 3 in the following post.
http://forum.xda-developers.com/showthread.php?t=1622628
It does not require rooted TF. If you do everything right but still not working, you may have a faulty device.
^^ My peri runs that method, so that didn't work. :/
I think borked hardware, try NvFlash
just did this
ls - l /system/xbin/su
getprop ro.secure
returned: 0
So it is indeed set to 0.
NVflash.. well I would do that if I could get the usb connection to the computer working.. Still trying that.
Also, kokopopz
I went through method 3 on the tf itself, unfortunately it didnt work. Still trying to get adb working to try it that way.
simplywinter said:
I went through method 3 on the tf itself, unfortunately it didnt work. Still trying to get adb working to try it that way.
Click to expand...
Click to collapse
The following guide will be useful for setting up ADB.
http://forum.xda-developers.com/showthread.php?t=1071584
For the USB driver, you can try the naked driver.
http://forum.xda-developers.com/showthread.php?t=1514942&highlight=naked
Note: I am a linux user. I set up ADB on my linux box. I did not try the above myself. I just came across them. They maybe useful to a Windows user.
Windows drivers are finicky, make sure you totally uninstall and reinstall them too. Took forever to get right on my computer.
no go with windows. I still cant seem to make this work... I have ubuntu on my laptop though. Can I even do this on Ubuntu? its 11.04
You can do this with Ubuntu no drivers required, just pick up the Nvflash wheelie for linux and get yourself a reflashed ROM.
Also you can still do this on TF. I had a very similar issue that I was able to fix by using Rayman's Blobtools (you can pickup blobunpack for windows in my bootsplash screen change guide).
Download the latest stock ROM for your device, and extract the 'blob' file out of it.
Put the blob in the same folder as blobunpack.exe, then open a command prompt and cd to the directory, then run:
Code:
blobunpack blob
After that you will see that there are now many blobs, one of them is called blob.EBT, this is your bootloader blob. What you want to do is copy that to /sdcard/ on your tf via mass storage or 'adb push blob /sdcard/' (You Have to remove the .ebt extension, it's just there as an ID, so it should just be 'blob')
Once that's there flash it through the staging partition (In terminal emulator or adb shell):
Code:
su
dd if=/sdcard/blob of=/dev/block/mmcblk0p4
reboot
Then it shouldn't get stuck at the Eeepad screen anymore!
If it still does, you might have that weird problem where nothing flashed through staging partition sticks, so you'll need to run Roach2010's fix.
after trying that.. twice. It doesn't seem to stick. Roaches 2010 fix it is, searching for it right now.
If you can get adb shell access (I'm assuming yes) PERI has the fix bootloop option. Otherwise run roaches fix AFTER flashing a new recovery and EBT partition but BEFORE rebooting.
how do i run roaches fix. i Dont understand that part. I understand the rest though.
I will preface this with stating that this is not my phone. A friend had rooted his LG G2 and installed CWM. After he accepted the OTA, the phone was essentially rendered useless. After this process, the phone will be reverted back to 100% STOCK. It took a while to compile all of this information, and I give all credit to respective owners, but this process I pieced together from multiple threads and was able to make this work.
Symptoms-
Not booting (Hanging at LG screen)
Able to access CWM recovery
Unable to Mount USB
Unable to access Download Mode
#####1#####
Uninstall all previous LG Drivers installed (Add/Remove Programs)
#####2#####
Install PDAnet to get the drivers required installed.
#####3#####
Once PDAnet is installed, ADB should recognize the device when it is in 'Recovery' mode.
(ADB Devices should give the result of: ###DEVICEID### Recovery)
#####4#####
Download aboot.img from: http://downloads.codefi.re/autoprime/LG/LG_G2/D802/Stock_Firmware/10b_EUR_16G_partitions
(The file will need to be renamed to aboot.img)
#####5#####
Download: http://www.androidfilehost.com/?fid=23252070760973106
#####6#####
Extract the files we need:
g2_security
loki_patch
loki_flash
recovery.img
#####7#####
Get into a command prompt and run the following:
adb push g2_security /sdcard/
adb root
adb push loki_patch /data/local/tmp
adb push loki_flash /data/local/tmp
adb push recovery.img /data/local/tmp
adb shell "dd if=/dev/block/platform/msm_sdcc.1/by-name/aboot of=/data/local/tmp/aboot.img"
adb shell "chmod 644 /data/local/tmp/aboot.img"
adb shell "chmod 755 /data/local/tmp/loki_patch"
adb shell "chmod 755 /data/local/tmp/loki_flash"
adb shell "/data/local/tmp/loki_patch recovery /data/local/tmp/aboot.img /data/local/tmp/recovery.img /data/local/tmp/recovery.lok"
adb shell "/data/local/tmp/loki_flash recovery /data/local/tmp/recovery.lok"
adb shell "rm /sdcard/g2_security"
adb shell "dd if=/dev/block/platform/msm_sdcc.1/by-name/fota of=/sdcard/fota-backup.img"
adb shell "dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota"
adb shell sync
adb reboot recovery
Once the above is done, the phone should boot into TWRP. I shut the phone off at this point and held "Volume Up" + "Power" and Download mode now worked!
#####8#####
Uninstalled PDAnet and then followed the instructions on the following page (including installing the drivers)
#####9#####--At this point the following thread finished reverting the phone to stock.
http://forum.xda-developers.com/showthread.php?t=2448960
My only suggestion is that you RUN THE MD5 HASH to ensure the large file downloads correctly. After this was done, the phone was successfully reverted back to stock.
If you found this help, please donate and buy me a beer!
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=ZBZ8G6ZPUEN4C
Hi, your last step, a Verizon link for restoring back to stock.. I have international D802.. can I use some other rom(omni rom) instead of your last step...
Guys, this exactly worked for me.. i used D802... however, i used all verizon files only to flash and finally went to download mode and flashed stock ROM... awesome help guys.. i was about to change the PCB by spending half of mobile cost..... i am definitely getting you a case next week...
still nothing
Still stuck in fast boot mode cannot do anything in cwm
---------- Post added at 09:39 PM ---------- Previous post was at 09:35 PM ----------
Still stuck in fast boot mode cannot do anything in cwm. Please can someone help me ??????
:good:
Me too on D802 and it worked. followed exactly as instructed.
thanks bro!
Thanks so much for the guide, one problem for me.... Im on a mac... I have pdanet, and android sdk set up but i cant get the commands to work. any idea on what to use for the commands?
P.S It does find the phone just fine with ./adb devices
dtuma1980 said:
I will preface this with stating that this is not my phone. A friend had rooted his LG G2 and installed CWM. After he accepted the OTA, the phone was essentially rendered useless. After this process, the phone will be reverted back to 100% STOCK. It took a while to compile all of this information, and I give all credit to respective owners, but this process I pieced together from multiple threads and was able to make this work.
Symptoms-
Not booting (Hanging at LG screen)
Able to access CWM recovery
Unable to Mount USB
Unable to access Download Mode
#####1#####
Uninstall all previous LG Drivers installed (Add/Remove Programs)
#####2#####
Install PDAnet to get the drivers required installed.
#####3#####
Once PDAnet is installed, ADB should recognize the device when it is in 'Recovery' mode.
(ADB Devices should give the result of: ###DEVICEID### Recovery)
#####4#####
Download aboot.img from: http://downloads.codefi.re/autoprime/LG/LG_G2/D802/Stock_Firmware/10b_EUR_16G_partitions
(The file will need to be renamed to aboot.img)
#####5#####
Download: http://www.androidfilehost.com/?fid=23252070760973106
#####6#####
Extract the files we need:
g2_security
loki_patch
loki_flash
recovery.img
#####7#####
Get into a command prompt and run the following:
adb push g2_security /sdcard/
adb root
adb push loki_patch /data/local/tmp
adb push loki_flash /data/local/tmp
adb push recovery.img /data/local/tmp
adb shell "dd if=/dev/block/platform/msm_sdcc.1/by-name/aboot of=/data/local/tmp/aboot.img"
adb shell "chmod 644 /data/local/tmp/aboot.img"
adb shell "chmod 755 /data/local/tmp/loki_patch"
adb shell "chmod 755 /data/local/tmp/loki_flash"
adb shell "/data/local/tmp/loki_patch recovery /data/local/tmp/aboot.img /data/local/tmp/recovery.img /data/local/tmp/recovery.lok"
adb shell "/data/local/tmp/loki_flash recovery /data/local/tmp/recovery.lok"
adb shell "rm /sdcard/g2_security"
adb shell "dd if=/dev/block/platform/msm_sdcc.1/by-name/fota of=/sdcard/fota-backup.img"
adb shell "dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota"
adb shell sync
adb reboot recovery
Once the above is done, the phone should boot into TWRP. I shut the phone off at this point and held "Volume Up" + "Power" and Download mode now worked!
#####8#####
Uninstalled PDAnet and then followed the instructions on the following page (including installing the drivers)
#####9#####--At this point the following thread finished reverting the phone to stock.
http://forum.xda-developers.com/showthread.php?t=2448960
My only suggestion is that you RUN THE MD5 HASH to ensure the large file downloads correctly. After this was done, the phone was successfully reverted back to stock.
If you found this help, please donate and buy me a beer!
https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=ZBZ8G6ZPUEN4C
Click to expand...
Click to collapse
My ADB keeps saying that my phone is unauthorized ;( I can only access .zip. Anyone else have this issue? Have tried multiple drivers, Sideload is the only thing that works.
Joppykid said:
My ADB keeps saying that my phone is unauthorized ;( I can only access .zip. Anyone else have this issue? Have tried multiple drivers, Sideload is the only thing that works.
Click to expand...
Click to collapse
Are you connected via PDAnet?
dtuma1980 said:
Are you connected via PDAnet?
Click to expand...
Click to collapse
I can't because I cannot turn on USB Debugging, I am stuck in the Recovery. Details of my situation are in this thread I posted. http://forum.xda-developers.com/showthread.php?t=2726985
Joppykid said:
I can't because I cannot turn on USB Debugging, I am stuck in the Recovery. Details of my situation are in this thread I posted. http://forum.xda-developers.com/showthread.php?t=2726985
Click to expand...
Click to collapse
Oh boy i got the same issue before. I just go to a local technician to have it fixed.
Joppykid said:
I can't because I cannot turn on USB Debugging, I am stuck in the Recovery. Details of my situation are in this thread I posted. http://forum.xda-developers.com/showthread.php?t=2726985
Click to expand...
Click to collapse
Same issue here. In the command prompt, anything I do returns the unauthorized device error.
EDIT- I'm going to try and sideload a custom ROM, and then flash the stock ROM after setting USB debugging to see if that helps at all. I'll let you know
Joppykid said:
I can't because I cannot turn on USB Debugging, I am stuck in the Recovery. Details of my situation are in this thread I posted. http://forum.xda-developers.com/showthread.php?t=2726985
Click to expand...
Click to collapse
Please refer to the initial post. This will only work if you can access the recovery. If you cannot access recovery, this method isn't going to work. Sorry!
dtuma1980 said:
Please refer to the initial post. This will only work if you can access the recovery. If you cannot access recovery, this method isn't going to work. Sorry!
Click to expand...
Click to collapse
Did you not see what I wrote? Recovery was the only thing I could access. This method didn't work because the RSA Token wasn't authenticated on my computer any longer. My phone was bricked. I now have a new one. Lesson learned. Make sure you have USB debugging on with an RSA token on your computer at all times.
Did you end up wiping the internal SD with the process? I am in a similar situation except I don't have a friend like you to help me out haha.
Joppykid said:
My ADB keeps saying that my phone is unauthorized ;( I can only access .zip. Anyone else have this issue? Have tried multiple drivers, Sideload is the only thing that works.
Click to expand...
Click to collapse
I factory wiped/reset my phone is CWM which got my phone to be recognized as in recovery.
I can't get past the adb shell commands to work. it keeps saying 'dd: can't open '/data/local/tmp/aboot.img' : Not a directory
I tried with the double quotations and without to see if the command would work thinking I was messing up the syntax.
perfect just saved my a$$. ota took for the 24a update. found this and i am back where i was.awesomes
My gf is on the ls980 with sprint and she is rooted on the optimus rom. twrp 2.3.4. lokified. she took the sprint ota and now the phone only boots into recovery no matter what i do. restore or load a new rom wont work. Please help..
umm
you said TWRP 2.3.4 did you mean 2.6.3.4? i know TWRP 2.6.3.4 supports OTG cables. If you have an OTG cable you could put a rom on a flash drive and it and try to flash it.
jarhead0231 said:
My gf is on the ls980 with sprint and she is rooted on the optimus rom. twrp 2.3.4. lokified. she took the sprint ota and now the phone only boots into recovery no matter what i do. restore or load a new rom wont work. Please help..
Click to expand...
Click to collapse
Search and read: http://forum.xda-developers.com/showthread.php?t=2451696
Saving LG G2 after unwanted OTA caused boot loop
doktor buknasty said:
Search and read: http://forum.xda-developers.com/showthread.php?t=2451696
Click to expand...
Click to collapse
This works on International D802. I had stock rooted rom with CWM (6.0.4.4), Xposed ( G2 Xposed, G2 tweakbox, Advanced Power Settings, App Settings), Tasker w/ Secure Settings and whatnot. So I applied OTA. Not good for the phone and the Ingress Ressistance. I was stuck at LG screen for 2 sec, reboot, rinse and repeat. Download mode was no go. Luckily I was able to enter recovery mode. Tried to restore..no luck. And after staying up till 4AM (thanx to the xda forum). I tried G2 back to stock with kdz thread. Couldn't enter download mode. I changed few USB cables, three comps and voila it entered DL mode. Unfortunately that was on Linux box...so no LG flash tool. Arghhhhh.
Next step...Linux needed, no knowledge, just sensible use of copy/paste. Enter recovery, wipe everything you can. Reboot to recovery and yes, root please. Now you should have adb. Do the following (thank you thecube)
Code:
adb shell
dd if=/dev/block/platform/msm_sdcc.1/by-name/fota of=/sdcard/fota-backup.img
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota
If you get any errors...don't worry. I managed to execute only line 2.
Reboot to recovery w/ root and again wipe everything (it worked for me, might not be needed), and copy/paste again.
Code:
adb shell
mount /data (disregard errors)
mkdir -p /data/media/0
exit (do not forget to exit shell)
adb push rom.zip /data/media/0
adb push rom.zip /data/media/0 ( where rom.zip is up to you..i used Black Pearl ROM)
Now watch that coursor. If it is not blinking...you are almost there. When push is completed, install rom. zip as usuall.
Franketo said:
This works on International D802. I had stock rooted rom with CWM (6.0.4.4), Xposed ( G2 Xposed, G2 tweakbox, Advanced Power Settings, App Settings), Tasker w/ Secure Settings and whatnot. So I applied OTA. Not good for the phone and the Ingress Ressistance. I was stuck at LG screen for 2 sec, reboot, rinse and repeat. Download mode was no go. Luckily I was able to enter recovery mode. Tried to restore..no luck. And after staying up till 4AM (thanx to the xda forum). I tried G2 back to stock with kdz thread. Couldn't enter download mode. I changed few USB cables, three comps and voila it entered DL mode. Unfortunately that was on Linux box...so no LG flash tool. Arghhhhh.
Next step...Linux needed, no knowledge, just sensible use of copy/paste. Enter recovery, wipe everything you can. Reboot to recovery and yes, root please. Now you should have adb. Do the following (thank you thecube)
Code:
adb shell
dd if=/dev/block/platform/msm_sdcc.1/by-name/fota of=/sdcard/fota-backup.img
dd if=/dev/zero of=/dev/block/platform/msm_sdcc.1/by-name/fota
If you get any errors...don't worry. I managed to execute only line 2.
Reboot to recovery w/ root and again wipe everything (it worked for me, might not be needed), and copy/paste again.
Code:
adb shell
mount /data (disregard errors)
mkdir -p /data/media/0
exit (do not forget to exit shell)
adb push rom.zip /data/media/0
adb push rom.zip /data/media/0 ( where rom.zip is up to you..i used Black Pearl ROM)
Now watch that coursor. If it is not blinking...you are almost there. When push is completed, install rom. zip as usuall.
Click to expand...
Click to collapse
DOES NOT WORK says adb not found.
jarhead0231 said:
DOES NOT WORK says adb not found.
Click to expand...
Click to collapse
Are you even on Linux? And have adb / Android sdk
Sent from my LG-D802
I'm stuck right here as far as download mode goes.
I installed TWRP on a d800 rooted with stock 4.2.2. The TWRP install went ok but it never booted afterward.
I can get into twrp, but can't sideload anything because the computer does not connect to the device, I hear the connection noise the computer makes but nothing in the device manager.
any ideas?
May I suggest you use "adb push rom.zip /sdcard/rom.zip" instead of sideload (the sideload doesn't have to be enabled)
bender_007 said:
May I suggest you use "adb push rom.zip /sdcard/rom.zip" instead of sideload (the sideload doesn't have to be enabled)
Click to expand...
Click to collapse
Thanks, I get
error: closed
I was wrong about my computer not seeing my device, it's in the device manager under Android and the adb drivers are installed.
I also renamed the rom to "update" to make it simpler
What's up now ?
Sorted it out or still issues there ?
I also tried the adb shell method.
I also tried this method through TWRP terminal and nada.
If I did something wrong here let me know, hopefully I can get it up and going
bender_007 said:
May I suggest you use "adb push rom.zip /sdcard/rom.zip" instead of sideload (the sideload doesn't have to be enabled)
Click to expand...
Click to collapse
This is what I get when I do the above. The CMD prompt in located in the same directory as the adb files
ADB sees my device as this #
Gabriel51 said:
This is what I get when I do the above. The CMD prompt in located in the same directory as the adb files
ADB sees my device as this #
Click to expand...
Click to collapse
ok, let's do it like this
1. copy rom to c:\rom.zip
2. while in adb folder "adb push c:\rom.zip /sdcard/rom.zip"
that should work, you don't need sideload to be enabled.
Please test and report.
bender_007 said:
ok, let's do it like this
1. copy rom to c:\rom.zip
2. while in adb folder "adb push c:\rom.zip /sdcard/rom.zip"
that should work, you don't need sideload to be enabled.
Please test and report.
Click to expand...
Click to collapse
I moved the file to the root of my C drive changed the name to "rom.zip"
Copied the command you supplied and got this result
I know my phone is connected because I can reboot it by using the command " adb reboot"
I used this;
adb push C:\Android\sdk\platform-tools\rom.zip
And it is now ready to install through TWRP!
Hold your breath.......
Edit;
Failed but at least it's in the twrp list
"unable to open zip"
I think I got it, I was able to access the firmware update screen.
Sorry fir these incomplete responses, I don't want you to keep looking for a resolve while I do this.
If your still here?
I'll be back!
Success!
After nothing would work except for loading the rom through adb I decided to wipe the whole thing.
I reloaded the rom and when selected for install it opened instead of preparing for install so I thought I would reboot and when I did I was prompted by su that my device may have lost root and gave me the option to reinstall it, I chose yes and when rebooting it hung (normal) at the LG logo, however this time the charge light was flashing! I attempted to access "download" and was successful in loading the stock rom.
In the end it looks like TWRP was the culprit, it used to be my favorite but not for this device
All is well, thanks for your help...
I've installed TWRP last weekend and installed LineageOS 14.1 for my LG G6 H870.
I was tinkering with Magisk and Magisk Manager to be able to use Netflix, I didn't restart my device after this step.
Last night LineageOS offered an OTA update and afterwards it restarted to recovery mode.
I assumed I had to install the new image manually so that's what I did.
After the installation the phone rebooted back to TWRP Recovery so I wiped cache, data and dalvik.
It still rebooted back to TWRP recovery so I tried to reinstall LineageOS again by following these steps: https://wiki.lineageos.org/devices/h870/install#installing-lineageos-from-recovery
The phone still only boots to recovery so my assumption, after some reading on XDA, is that something is wrong with the bootloader.
This could have happened when I was tinkering with Magisk, I think I've seen a notice that I tried to make changes to the bootloader.
To fix the bootloader the main suggestion is to flash the stock rom so i've started that path.
I've installed Uppercut and LG Up use links from this thread: https://forum.xda-developers.com/lg-g5/development/uppercut-lgup-loader-g5-variants-t3511295/
I found a stock rom at https://lg-firmwares.com/lg-h870-firmwares/#firmwaresList and I assume I need the "NEU/NORTHERN EUROPE" rom.
When I open Uppercut it says "There is no handset connected".
I've got no clue what steps to take at this point.
FYI I'm able to get in to the bootloader mode and the recovery mode but havent been able to get into the download mode.
If you still have twrp just flash stock from there.
basicreece said:
If you still have twrp just flash stock from there.
Click to expand...
Click to collapse
I didn't know it was possible to flash a kdz file using twrp.
According to this reply it isn't possible using kdz files https://forum.xda-developers.com/showthread.php?t=2650569
Do you know for sure that this is possible?
I think I need to flash the bootloader using fastboot but I don't know what source to use, and I hardly found bootloader files on the web.
I don't think Magisk is modifying the bootloader, but I could be wrong.
You can find the H870_v10T and US997_v14A bootloaders here:
https://forum.xda-developers.com/showpost.php?p=73161240&postcount=2
ahk31 said:
I don't think Magisk is modifying the bootloader, but I could be wrong.
You can find the H870_v10T and US997_v14A bootloaders here:
https://forum.xda-developers.com/showpost.php?p=73161240&postcount=2
Click to expand...
Click to collapse
Thanks for pointing out that thread!
I downloaded the bootloader and succesfully installed it using `adb sideload LG-H87010f-Flashable.Bootloader.zip`
But the phone still only boots to TWRP.
So I tried to flash a complete stock rom from https://forum.xda-developers.com/lg-g6/development/rom-eu-lg-h870-10t-rom-t3654134
I did wipe Dalvik/ART, Cache, System and Data and afterwards installed that rom.
Unfortunately these steps didn't make any difference to the boot sequence.
I've been trying again to get into the download mode using key combo's and using `adb reboot download` but it reboots to TWRP instead.
What should I try now?
I finally managed to enter download mode!
In the end I figured that I confused the key combo from my previous phone with this one.
I should only hold the volume up button and then plugin in the usb cable.
What I tried numerous times was a combo of volume up and power button.
for reference and people showing up here later. Doing lineage OTA updates on the G6 forces the device into that endless boot loop into recovery. You get out there by entering the shell in TWRP and dd'ing some zeros somewhere. I had it once but sadly did not write down how I solved it. Google for boot loop and twrp you will find hits here on xda where you see a dd if=/dev/zero line and explaining what todo. It is a bit different for each device, but the article tells you what to look for. As I understood it, writing some zeros at the start of a partition ends the loop, but I am no expert there, it just worked for me.
Oh yes, and stay away from lineage OTAs
Edit: ok, not xda but reddit, anyway here is the link
https://www.reddit.com/r/LineageOS/comments/5riech/how_fix_twrp_recovery_boot_loop_after_lineageos/
The life saving post is a comment further down by muniak
I'm using TWRP 3.1 and still had this issue.
Despite thinking my phone was rooted, I couldn't su, adb as root or anything, so I couldn't /fstab. I ended up looking around and comparing the path I was in with other's. So if you're having this problem just keep going around typing ls and pressing tab like below. Basically you're looking for "by-name/misc" in "/dev/block/platform/".
ls /dev/block ls /dev/block/platform ls /dev/block/platform/[dir or two] ls /dev/block/platform/[dir or two]/by-name ls /dev/block/platform/[dir or two]/by-name/misc
Then the dd if=/dev/zero of=/dev/block/platform/[dir or two]/by-name/misc count=1 bs=32
Good luck and thanks so much for the help!
Click to expand...
Click to collapse
ikbentomas said:
I didn't know it was possible to flash a kdz file using twrp.
According to this reply it isn't possible using kdz files https://forum.xda-developers.com/showthread.php?t=2650569
Do you know for sure that this is possible?
I think I need to flash the bootloader using fastboot but I don't know what source to use, and I hardly found bootloader files on the web.
Click to expand...
Click to collapse
Then flash the stock zip.....
If you had searched the forum you would see the stock zips and bootloaders all complied for twrp.
ikbentomas said:
I've installed TWRP last weekend and installed LineageOS 14.1 for my LG G6 H870.
I was tinkering with Magisk and Magisk Manager to be able to use Netflix, I didn't restart my device after this step.
Last night LineageOS offered an OTA update and afterwards it restarted to recovery mode.
I assumed I had to install the new image manually so that's what I did.
After the installation the phone rebooted back to TWRP Recovery so I wiped cache, data and dalvik.
It still rebooted back to TWRP recovery so I tried to reinstall LineageOS again by following these steps: https://wiki.lineageos.org/devices/h870/install#installing-lineageos-from-recovery
The phone still only boots to recovery so my assumption, after some reading on XDA, is that something is wrong with the bootloader.
This could have happened when I was tinkering with Magisk, I think I've seen a notice that I tried to make changes to the bootloader.
To fix the bootloader the main suggestion is to flash the stock rom so i've started that path.
I've installed Uppercut and LG Up use links from this thread: https://forum.xda-developers.com/lg-g5/development/uppercut-lgup-loader-g5-variants-t3511295/
I found a stock rom at https://lg-firmwares.com/lg-h870-firmwares/#firmwaresList and I assume I need the "NEU/NORTHERN EUROPE" rom.
When I open Uppercut it says "There is no handset connected".
I've got no clue what steps to take at this point.
FYI I'm able to get in to the bootloader mode and the recovery mode but havent been able to get into the download mode.
Click to expand...
Click to collapse
Use adb and type in: adb shell dd if=/dev/zero of=/dev/block/platform/soc/624000.ufshc/by-name/misc count=1 bs=32
Then restart your phone!
worked for me
cheers
Boneface Johnson said:
Use adb and type in: adb shell dd if=/dev/zero of=/dev/block/platform/soc/624000.ufshc/by-name/misc count=1 bs=32
Then restart your phone!
worked for me
cheers
Click to expand...
Click to collapse
I had the same problem, this command worked for me, thanks!
Boneface Johnson said:
Use adb and type in: adb shell dd if=/dev/zero of=/dev/block/platform/soc/624000.ufshc/by-name/misc count=1 bs=32
Then restart your phone!
worked for me
cheers
Click to expand...
Click to collapse
Worked for me too. Many thanks.
Boneface Johnson said:
Use adb and type in: adb shell dd if=/dev/zero of=/dev/block/platform/soc/624000.ufshc/by-name/misc count=1 bs=32
Then restart your phone!
worked for me
cheers
Click to expand...
Click to collapse
Thanks, your solution worked for me too
Same happend to me, there are some post that say you have to boot to bootloader and send bootloader continue command with your PC, however that didn't work for me. To flash with LG UP you have to have your phone off, connect USB cable to PC, press Vol+ on phone and connect the USB cable to the phone, it should start in a mode called download mode, then LG UP should find your device