I tried to a root script and it while it said it was successful I ended up bricking the phone. Now my computer says that the mtp device has failed to start and i cant use any adb commands since i cant authorize it since it wont finish booting. i tried using a lg flash tool but when i click get phone information the program crashes. all i can do with the phone is put in firmware update mode. is there anything i can do?
Yes, you can. Use LG flashtool 2014 and download a rom from a proper site (I don't remember the address) and boot your phone in download mode. If you don't choose the option to erase all data, it most likely won't be lost, but there is a chance it will get restored to factory settings and all your data will be lost.
Related
Alright here is my situation. I ran the latest OTA update on the stock rom and the phone started going into
a boot loop. My problem is that I havent performed a recent backup and need to access some files on the
phone. Developer mode is enabled, however I disabled USB debugging prior to running the update. When my
phone reboots, I remove the battery and restart the phone but every once in a while my phone successfully
loads and I am able to punch in my pin to unlock the phone. However, a few seconds later the phone reboots.
I tried to access the phone using ADB but because I dont have USB debugging enabled I dont see any devices
when I run the "adb devices" command. I also tried to acquire a smartphone image using encase forensic, but
yet again, because USB debuggin is not enabled, I am not able to pull data.
I am able to go into recovery mode and I tried to wipe my cache partition, but that did not help.
My questions are:
1. Is there a way for me to access my data files while the phone is stuck in a boot loop and USB debugging is
disabled?
2. Is it possible for me to download the latest update, copy it over to my sdcard and rerun the update from
my sdcard from recovery mode? Could this possibly solve my problem?
3. In a worst case scenario, if I do a factory wipe/reset, will this solve my problem and what is the
likelyhood of recovering my files from the data partition?
Any tips, tricks, advice is greatly appreciated.
tparnet said:
Alright here is my situation. I ran the latest OTA update on the stock rom and the phone started going into
a boot loop. My problem is that I havent performed a recent backup and need to access some files on the
phone. Developer mode is enabled, however I disabled USB debugging prior to running the update. When my
phone reboots, I remove the battery and restart the phone but every once in a while my phone successfully
loads and I am able to punch in my pin to unlock the phone. However, a few seconds later the phone reboots.
I tried to access the phone using ADB but because I dont have USB debugging enabled I dont see any devices
when I run the "adb devices" command. I also tried to acquire a smartphone image using encase forensic, but
yet again, because USB debuggin is not enabled, I am not able to pull data.
I am able to go into recovery mode and I tried to wipe my cache partition, but that did not help.
My questions are:
1. Is there a way for me to access my data files while the phone is stuck in a boot loop and USB debugging is
disabled?
2. Is it possible for me to download the latest update, copy it over to my sdcard and rerun the update from
my sdcard from recovery mode? Could this possibly solve my problem?
3. In a worst case scenario, if I do a factory wipe/reset, will this solve my problem and what is the
likelyhood of recovering my files from the data partition?
Any tips, tricks, advice is greatly appreciated.
Click to expand...
Click to collapse
Boot phone into recovery mode. You can access phone now and make backup or download need files to PC.
svs57 said:
Boot phone into recovery mode. You can access phone now and make backup or download need files to PC.
Click to expand...
Click to collapse
Thanks svs57 for the quick reply.
Would you mind elaborating a bit more? I am an IT guy but by no means a developer. When I boot into recovery is the phone supposed to show up in My Computer via MTP or PTP? The phone is not showing up as a device. Or am I supposed to use adb commands to pull the files down?
When I go into recovery and run the "adb devices" command now I get what appears to be a serial number followed by the word "unauthorized". I rebooted and went into recovery mode again this time tried "apply update from ADB". When I try using either the adb push or adb pull I get "error: closed"
Thanks again for the help.
You have to use latest version of adb. Then you can login to phone via adb and find file you want to backup. Then use "adb pull" to get file to PC.
If you have custom recovery you also can make backup you data using recovery.
Also you can flash the same ROM you have without wipe data.
Get rid of shutting down after "device corrupt" message - so possibility to gain root
Some of you might face the problem that whatever you do anything you change on your device in order to gain root even if your bootloader is unlocked your device is turning off after promting "device corrupt, etc..." message.
Sometimes you can't even unbrick with lg bridge cos' it can't see that your firmware has any problems.
Typical symptom of this problem that very interestingly your phone is not showing any corrupt messages during normal boot up even if your bootloader is unlocked (it should write some warnig message at every boot up).
Also when you "fastboot boot yourstockbootimage.img" it's booting up but writing some network related error then shuts down saying corrupt battery.
In order to root your phone you must be able to change the firmware a bit (tweak the boot image).
First of all you need to unlock your bootloader if you didn't do it yet: http://forum.xda-developers.com/lg-k10/how-to/unlock-bootloader-lg-k10-mtk-devices-t3486302
All you have to do is allow modifications in TWRP step 2.1 here: https://forum.xda-developers.com/lg-k10/how-to/friendly-root-method-lg-k8-k10-t3531223
It means the rest written under is fully unnecessary but i keep it just in case the above mentioned method would not work for someone:
Other requirements:
- lg up working with your device: http://forum.xda-developers.com/lg-k10/how-to/flashing-firmware-using-lg-t3517839
- kdz firmware
- twrp recovery of your device (usually you can find it in your favorite root thread or somewhere on xda)
Extract boot image from your firmware with lg firmware extractor (http://viid.me/qe7ufH). First you have to extract the ".dz" file and then the boot image form that ".dz" file.
Once you have your boot image (eg. boot_157696.bin) rename it to "boot.img"!
Put this "boot.img" on your sd card!
Flash this firmware (that you taken your boot image form!!!) on your phone with LG UP.
Boot up and see if it works also tick all the necessary options (oem unlock in developer options, usb debug,...)
Reboot to fastboot, check if your bootloader is still unlocked ("fastboot getvar all"). If it's locked unlock it!
Boot into your TWRP (fastboot boot twrp.img), you can allow it to read system.
Go to "install" (tick install image) and flash your "boot.img" form your sd card (naturally onto your boot partition).
Now before you reboot make a full wipe (fastory reset) in TWRP (wipe menu) then you can reboot to system.
After the "device corrupt" message it must be booting on and boot up normally and during every boot up there should be that message.
Now you can go and root your phone - always use that boot image you just flashed during the first step of the root process (recompress this boot image to gzip and ... read a rooting guide: http://forum.xda-developers.com/lg-k10/how-to/twrp-root-lg-k8-k350n-t3475807 there this should be "bootlz4_0.img")
There is no explanation why it works... wierd.
Hi.
I have this problem, corrupt device screen and continuous bootloops, I only have access to the download mode, but LG UP does not allow me to flash the .kdz even though I have the boot.img file on the sd card. It shows me the typical error at 9% of the process 'Error code = 0x81000304, CBasicFlash :: _func_LoadGptF - ErrorCode: 8222'. Would someone tell me what it is and how can I fix it?
I have tried to revive the cell phone in myriad ways and it is not possible for me.
I appreciate any suggestions.
Thank you very much.
Llony said:
I appreciate any suggestions.
Thank you very much.
Click to expand...
Click to collapse
This thread is not about bootloops but shutting down. Different subject. You should start a new thread about it.
However i looked at it, check out this comment:
http://forum.xda-developers.com/showpost.php?p=66135219&postcount=74
anyways if i were you i'd do a hard reset (http://www.hardreset.info/devices/lg/lg-k10/) and then i'd use lg bridge's update error recovery function (or you can change the order - first lg bridge, then hard reset).
Also make sure you chose "refurbish" when you use lg up and also make sure you are using the right kdz file (i recommend using lg mobile support tool to download your kdz - there is a possibility under options and upgrade recovery that using your imei it downloads the kdz to a hidden folder: http://forum.xda-developers.com/showthread.php?t=2395323)
I have bootloop with usb connected, without usb powered off
Llony said:
I have bootloop with usb connected, without usb powered off
Click to expand...
Click to collapse
I see... okay. However check out what i wrote above and one more thing: make sure you use usb 2.0 not any 3.0 ports.
I still do not find the solution, LG Up detects that it has installed the version k43010y, this version does not even exist! And I still give the error to 9% of the process. I do not know what to do to recover it
Llony said:
I still do not find the solution, LG Up detects that it has installed the version k43010y, this version does not even exist! And I still give the error to 9% of the process. I do not know what to do to recover it
Click to expand...
Click to collapse
Did you try lg bridge - update error recovery?
LG Bridge It does not give me the option to recover update error. And the LG flash tool before starting the process shows me 'contact the system administrator'. He does not let me get him back in any way.
Would it be possible to enter the fastboot mode through the download mode? So I guess I could try to flash an unmodified boot.
Thanks.
Llony said:
LG Bridge It does not give me the option to recover update error. And the LG flash tool before starting the process shows me 'contact the system administrator'. He does not let me get him back in any way.
Would it be possible to enter the fastboot mode through the download mode? So I guess I could try to flash an unmodified boot.
Thanks.
Click to expand...
Click to collapse
What do you mean it doesn't give you the option? I mean LG bridge, there is no update error recovery on the software update page? As in this video:
https://www.youtube.com/watch?v=b_GqAG02OXU
Ok, I'm going to start by explaining everything I did up to this point to eliminate any troubleshooting sugggestions i may have already done.
I rooted and installed recovery the same way everyone else did. After a couple of days, I tried to install a ROM but im assuming i was encrypted because i was stuck in a loop that would only boot me into TWRP. Did my research and took the necessary steps to get around that and decrypt and boot into the new ROM.. FINALLY!!! Only one problem, this rom doesn't have Super SU installed, Alright... so i download the proper Super SU build and put it on my Micro SD card and try to boot into TWRP to flash....
This is where the problem begins. I never get the prompt to authorize my PC from my phone to allow anything, and i never did each time i reset. I'm almost certain the adb on this rom is messed up, i've wiped about 4-5 times to re-enable usb debugging from scratch in order to adb or fastboot into recovery via command prompt, however when i try adb, i get that unauthorized error an there's no option on the LG V20 to revoke under developer settings. Fastboot i just get the same "waiting for device" message. Also keep in mind that i set it to photo mode, every mode that was available and nothing. Tried different USB Cords and did this on both my laptop and my PC at work
I've tried uninstalling and reinstalling all of the drivers, re-installed the latest version of adb and fastboot to my PC, that didn't work either. Tried deleting the adbkeys file in the .android folder and still nothing.
When i try to boot in recovery manually, i just get the wipe data option and when i click yes to everything, it actually wipes my data. I'm unable to reflash TWRP because I can't access ADB or Fastboot due to the unauthorized error.
Someone, PLEASE HELP!!!!
any luck?
ahq1216 said:
Ok, I'm going to start by explaining everything I did up to this point to eliminate any troubleshooting sugggestions i may have already done.
I rooted and installed recovery the same way everyone else did. After a couple of days, I tried to install a ROM but im assuming i was encrypted because i was stuck in a loop that would only boot me into TWRP. Did my research and took the necessary steps to get around that and decrypt and boot into the new ROM.. FINALLY!!! Only one problem, this rom doesn't have Super SU installed, Alright... so i download the proper Super SU build and put it on my Micro SD card and try to boot into TWRP to flash....
This is where the problem begins. I never get the prompt to authorize my PC from my phone to allow anything, and i never did each time i reset. I'm almost certain the adb on this rom is messed up, i've wiped about 4-5 times to re-enable usb debugging from scratch in order to adb or fastboot into recovery via command prompt, however when i try adb, i get that unauthorized error an there's no option on the LG V20 to revoke under developer settings. Fastboot i just get the same "waiting for device" message. Also keep in mind that i set it to photo mode, every mode that was available and nothing. Tried different USB Cords and did this on both my laptop and my PC at work
I've tried uninstalling and reinstalling all of the drivers, re-installed the latest version of adb and fastboot to my PC, that didn't work either. Tried deleting the adbkeys file in the .android folder and still nothing.
When i try to boot in recovery manually, i just get the wipe data option and when i click yes to everything, it actually wipes my data. I'm unable to reflash TWRP because I can't access ADB or Fastboot due to the unauthorized error.
Someone, PLEASE HELP!!!!
Click to expand...
Click to collapse
different route but im in the same boat. any luck?
I fixed this shortly after. Wanted to avoid returning to stock as. The only option was you and I was on 10d. I had to go back to stock but luckily the recovery method still works.
So firstly, eff this phone. First phone I have had real problems with.
We rooted following methods on this forum. Once TWRP was installed I flashed a custom rom and once it rebooted it was telling me an error beyond the google your device is unlocked message and gave me only one option to factory reset.
I went with that option after 4th reboot and now it only reboots to the google unable to verify corruption. I have tried fastboot and pushing TWRP, but it fails.
Since I am on Mac i decided to install windows 10 and use Uppercut. I followed all of the steps, but the device isn't being recognized. Verified drivers installed, but I have very limited windows experience.
Any ideas would be appreciated. This is a 1 day old v20 and I would like to not have to buy another phone for the wife
jivy26 said:
So firstly, eff this phone. First phone I have had real problems with.
We rooted following methods on this forum. Once TWRP was installed I flashed a custom rom and once it rebooted it was telling me an error beyond the google your device is unlocked message and gave me only one option to factory reset.
I went with that option after 4th reboot and now it only reboots to the google unable to verify corruption. I have tried fastboot and pushing TWRP, but it fails.
Since I am on Mac i decided to install windows 10 and use Uppercut. I followed all of the steps, but the device isn't being recognized. Verified drivers installed, but I have very limited windows experience.
Any ideas would be appreciated. This is a 1 day old v20 and I would like to not have to buy another phone for the wife
Click to expand...
Click to collapse
Did you accept to give authorization to your computer prior to do all this? if you didnt then it will never recognize your device in fastboot mode. But ... If you cant do anything beyond going into fastboot mode, then i suggest you use LG up and use the kdz for your phone and then... voila! problem solved. Assuming that your variant has released a kdz. (when you download the kdz, use LG UP refurbish function while your phone is on download mode (not on fastboot mode). To enter into download mode follow this link: http://www.hardreset.info/devices/lg/lg-v20/download-mode/ .). If you do all this, then you should be back into stock and can try once again to get root.
So, it is basically:
1) download LG UP & your kdz file
2) go into Download mode on the phone
3)use refurbish function on lg up and use the kdz file
You have to formatt data with twrp!!!!
Format data
It requires you to type yes.
Then flash stock rom.
This is part of the unlock procedure.
Device needs formatted not just wiped to remove the encryption that was on it.. Once done then you can flash a rom and boot.
---------- Post added at 10:45 PM ---------- Previous post was at 10:41 PM ----------
Team DevDigitel said:
You have to formatt data with twrp!!!!
Format data
It requires you to type yes.
Then flash stock rom.
This is part of the unlock procedure.
Device needs formatted not just wiped to remove the encryption that was on it.. Once done then you can flash a rom and boot.
Click to expand...
Click to collapse
2nd.. If you have fastboot and the above was done and your still not booting
Fastboot erase system
Fasbtoot erase data
Fastboot erase misc
Fastboot erase fota
Fastboot erase cache
Fastboot erase etc
Then pull battery and reboot to twrp. Install rom and reboot and wait 15min. Most take atleast that long 1st flash.
Hello to all of you taking your time reading this. I have got into some problems with my LG G2 D802 recently. More precisely: I have bricked it and installed a broken recovery. HELP!
It all started with me wanting to upgrade my LG G2 to android Pie 9.0 with a custom rom. So I found an all in one tool to root and install TWRP on the phone (I probably never should have done that). I quickly realized that inside TWRP only the upper half of the screen was working somewhat close to normal, and the lower part was completely messed up. That made me unable to install the custom rom I had downloaded.
- - -
ADB and Fastboot
I tried to get rid of TWRP by using ADB and Fastboot to install the stock recovery back on my device. I wanted to use the command: “fastboot flash recovery recovery.img”. Though, before I even came that far, I had troubles getting my phone into fastboot mode. Whenever I executed the command: “adb reboot bootloader”, the phone just restarted and went back into TWRP. How can I enter fastboot?
This had been tried on multiple systems including Linux, Windows 7 and 10, with different USB drivers all removed completely between testing.
- - -
LG FlashTool (v. 1.8.6.527)
Then I went to try install a stock rom on my phone (which I had done once before with LG FlashTool). So I started the tool and put my phone into download mode. It got detected on COM41 and the flashing could start. I used the following files: LGD802_20130912_LGFLASHv160.dll and BIN_LGD802AT-00-V10b-SEA-XX-SEP-04-2013-32G+0.tot.
When LG FlashTool then reports: “CUST”, “Skip BackupGPT Partition.” and then “Waiting for reset 120 sec”, the phone reboots. . . - into TWRP. . . Sighs*. . .
I tried to shut it back down and enter download mode again while LG FlashTool was running. But after a while LG FlashTool just says: “FBOOT Check….“, then “FBOOT FAIL!!” and “Fail to get BOOT Complete Status. 00000064”
So is FBOOT = fastboot? If so, have I then messed something up with my fastboot then?
- - -
LG Flash Tool 2014
I also tried flashing with the kdz file called: Europe Open D80230b.kdz. But here my device didn’t even got detected by the tool. So I started searched for something else on the web, found nothing, and here I am.
I honestly don’t know what to do next. I know that one quick solution is to go and get a new phone. But that solution is expensive and what I really want, is to get my LG functioning again.
As I see it, the options for getting the phone back, is to fix either fastboot, TWRP(screen not working), LG Flash Tool 2014(if it not uses fastboot) or use this tool; SRK Tool 2.1. I just don't know how to proceed with any of this.
Any kind of help is highly appreciated. Thank you.