Hello.
I wanted to get root on my LG, so I used this thread: https://forum.xda-developers.com/lg-g7-thinq/development/mod-v16-t3808363
Bootloader went fine, its unlocked. But after rooting, my phone went into bootloop, keep launching to fastboot, twice I made it to launch to LG logo, but it didnt went further.
Minimal adb & fastboot didnt see phone, LGUP same @edit: made way into download mode
Still got warranty on my phone, but I bet it wont help.
Please, help
SOLVED
Maybe someone else can use it, so lets go.
After an hour finally entered into download mode. Updated every driver thats could be, installed LG Bridge, launched and go to the update tab. Try to update system, if program return "its updated" press blue text on right down, move along and wait. System will install fresh and fine. If you have problem with LG Bridge, try this: https://forum.xda-developers.com/lg-g7-thinq/how-to/guide-how-to-flash-stock-firmware-lock-t3820888
LGUP see phone in download mode.
So ye, thanks for help anyway ^_^
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I hope someone can help me.
I bought an LG Pro E-988 which is already rooted and have a nightly CM11 installed.
I saw the LG Flex Rom and tried to install. I hit an error (Status 7), so I restored my back up. It booted correctly and decided to install/run the LG Recovery and Freegee apps as I suspected that the error (Status 7) was because I didn't install the apps before the LG Flex ROM.
After I run FreeGee, I restarted in recovery and tried to install the ROM but still same error (Status 7). So I decided to restore my back up again, but this time around, the boot is not pushing through. I'm stuck in the LG Logo.
Has anyone experienced this before and maybe you can help me to fix my phone.
I admit I got a bit excited rooting and flashing custom ROMs again after 1 year of hiatus.
Thanks in advance!!
hd2_droid said:
I hope someone can help me.
I bought an LG Pro E-988 which is already rooted and have a nightly CM11 installed.
I saw the LG Flex Rom and tried to install. I hit an error (Status 7), so I restored my back up. It booted correctly and decided to install/run the LG Recovery and Freegee apps as I suspected that the error (Status 7) was because I didn't install the apps before the LG Flex ROM.
After I run FreeGee, I restarted in recovery and tried to install the ROM but still same error (Status 7). So I decided to restore my back up again, but this time around, the boot is not pushing through. I'm stuck in the LG Logo.
Has anyone experienced this before and maybe you can help me to fix my phone.
I admit I got a bit excited rooting and flashing custom ROMs again after 1 year of hiatus.
Thanks in advance!!
Click to expand...
Click to collapse
Nothing to worry about. Here is a pinned post where you can find all the information you need.
Just download your kdz from here and follow the steps from this post
Download kdz, install lg flashtool, lg drivers, after turning off your phone, press volume up and down together and connect your usb cable to get into download mode, then follow those pictures in that post to flash the kdz. You will be back to stock.
spirallingspiral said:
Nothing to worry about. Here is a pinned post where you can find all the information you need.
Just download your kdz from here and follow the steps from this post
Download kdz, install lg flashtool, lg drivers, after turning off your phone, press volume up and down together and connect your usb cable to get into download mode, then follow those pictures in that post to flash the kdz. You will be back to stock.
Click to expand...
Click to collapse
Thanks a lot man :good:! Although, I'm stuck with 'Connection error' in the FlashTool. Is this normal? I tried again and again more than 20 times but I'm getting the same connection error.
Also, earlier I was still able to go to recovery, but now even if I press the power button it goes straight to the download mode.
Hope you can help again.
You cant get out of download mode? did you try volume down and power button together for 5 secs? And btw what error are u getting on flash tool? its not detecting your phone? Did you install the mobile drivers?
spirallingspiral said:
You cant get out of download mode? did you try volume down and power button together for 5 secs? And btw what error are u getting on flash tool? its not detecting your phone? Did you install the mobile drivers?
Click to expand...
Click to collapse
The error was in the LG Mobile Support Tool (sorry to in the Flash tool). During the upgrading of the phone it always give the error - 'Connection to server failed. Try again in a moment'
Also, if I try to turn on the phone it will not boot but go straight to download mode.
hd2_droid said:
The error was in the LG Mobile Support Tool (sorry to in the Flash tool). During the upgrading of the phone it always give the error - 'Connection to server failed. Try again in a moment'
Also, if I try to turn on the phone it will not boot but go straight to download mode.
Click to expand...
Click to collapse
Did you remove the battery and put it back in? And it still goes to download mode? Try starting the phone pressing Volumedown+power key for sometime or you could try Volumeup+Homekey+Power to boot into recovery and try restoring backup or flashing some other rom and see if you can get out of boot. I really don't know why you are getting that connection problem. I got stuck at boot a couple of times and followed exactly what was given in that post and reverted back to stock. I guess some of the senior members will help you here. Meanwhile ill see if i can search a solution for that connection error, i haven't faced that yet so i really don't know the fix. There is a second TOT method given in that post, that might help.
spirallingspiral said:
Did you remove the battery and put it back in? And it still goes to download mode? Try starting the phone pressing Volumedown+power key for sometime or you could try Volumeup+Homekey+Power to boot into recovery and try restoring backup or flashing some other rom and see if you can get out of boot. I really don't know why you are getting that connection problem. I got stuck at boot a couple of times and followed exactly what was given in that post and reverted back to stock. I guess some of the senior members will help you here. Meanwhile ill see if i can search a solution for that connection error, i haven't faced that yet so i really don't know the fix. There is a second TOT method given in that post, that might help.
Click to expand...
Click to collapse
Yup, i tried removing the battery. Also tried different key combos to boot but it all goes to the download mode, with the small with box in the middle.
I also tried the option of going straight to the LG mobile support tool (not the LG Flash tool). But the same server connectiom error.
Thanks again for the help.
Hope other members can help me too.
Since I'm not able to do recovery using the KDZ file. Can I use the TOT file?
I have E988 Singapore version, but the last ROM installed was with a CM11. And in the Phone details it shows E980.
Will it work or will it just make things worst?
hd2_droid said:
Since I'm not able to do recovery using the KDZ file. Can I use the TOT file?
I have E988 Singapore version, but the last ROM installed was with a CM11. And in the Phone details it shows E980.
Will it work or will it just make things worst?
Click to expand...
Click to collapse
I haven't flashed using TOT method so i cant comment on that. I heard few people had trouble using flashtool on windows 8, are u you using windows 8? maybe try the kdz method again from a windows 7.
spirallingspiral said:
I haven't flashed using TOT method so i cant comment on that. I heard few people had trouble using flashtool on windows 8, are u you using windows 8? maybe try the kdz method again from a windows 7.
Click to expand...
Click to collapse
Yeah, I read that also. I used a windows 8 pc previously, that might be causong the connection error. I will try my old pc and hopefully it will work.
Thank you!
The phone automatically started to download an update (even though it was not set to do so) and upon resetting became stuck on a black screen with the notification lights blinking blue and red. I can restart the phone but once I do so the update automatically begins to start downloading the update again; even when I put the phone into airplane mode and disable wifi. I have tried to do a factory reset but that just makes the screen go black and the blue/red notification lights start to blink
I have no installed any custom roms or the like; I just use Kingroot in an attempt to get rid of as much bloatware as possible.
Is their some way of stopping the update from running whenever I boot up the phone so that I don't need to completely wipe everything and loose all my data?
People love to get update specially in case of D850 we get an update and you want to get rid of it. Why don't you simply, first, unroot it. Then get update and enjoy the new features.
By doing so you will also get the (maybe) final update for LG G3 on your d850 variant...
dksoni411 said:
People love to get update specially in case of D850 we get an update and you want to get rid of it. Why don't you simply, first, unroot it. Then get update and enjoy the new features.
By doing so you will also get the (maybe) final update for LG G3 on your d850 variant...
Click to expand...
Click to collapse
I can't unroot it at this point. I can't even do factory reset. I've tried the method using the LG Flash tool and the LG PC suite but neither works.
Can you explain what actually happens when you try to unroot and go back to stock. Is there any problem with download mode or LG flash tool show some errors while returning back to stock. If yes or no please explain in details
dksoni411 said:
Can you explain what actually happens when you try to unroot and go back to stock. Is there any problem with download mode or LG flash tool show some errors while returning back to stock. If yes or no please explain in details
Click to expand...
Click to collapse
When attempting to use LG Flash too I get "model information check fail" after hitting start and reconnecting the phone
Try doing the process on another PC. Same error also happened to me while unrooting on my windows 10 laptop. Then i tried on other windows 7 pc and it was fixed. You can try for that (if didn't),
The backstory: I have no experience with rooting and or flashing custom ROMs. Prior to today my ze551ml was completely stock, running on the official android M update. I had a need to do a factory reset, but the phone would simply reboot. I assumed this was a problem with the update so I download and attempted to install the downgrade to l. Naturally it crashed mid downgrade and I thought it to be bricked. So, I started Googling and realized I was able to get into fastboot mode, but not recovery. Following a guide I located I attempted to flash the preroot ROM located at the link below:
http://forum.xda-developers.com/zenfone2/development/rom-pre-root-img-t3079590
Well, it appeared to have worked, but now the phone refused to boot at all after being turned off. So, more Googling and I proceeded to follow the full unbricking guide below:
http://forum.xda-developers.com/zenfone2/help/thead-bricked-phone-updating-to-mm-tips-t3452785
Partway through step 1.3 the phone restarted itself and booted right up into Android L! Success I thought to myself, but it was not to be. I proceeded to download the FOTA L update and it downloaded fine, but when I clicked to install it simply rebooted the phone. Tried a couple of other times with the same result. I realized that Supersu was installed so I did the full unroot assuming that was the problem, but to no avail. It appears that the updates can't install because the phone is incapable of entering fastboot or recover mode. Anytime I attempt to enter fastboot via hard key or through adb the phone hangs on the ASUS logo. Adb detects the phone when it's connected via USB, but of course fastboot can't because I can't get it into fastboot mode at all.
Any tips on how to get fastboot operational again so I can start applying updates again? Every guide I've located has started with "boot into fastboot/recovery" which simply isn't an option. Any help is appreciated.
Edit: Well, I think I've reached the end of the internet trying to google for a solution. The phone works, but it looks like it's stuck on build 2.13.40.13 until the end of its life. If anybody has any ideas I'm still hoping for a solution, but I can't find anything describing how to restore fastboot if the OS is intact.
kidnova said:
The backstory: I have no experience with rooting and or flashing custom ROMs. Prior to today my ze551ml was completely stock, running on the official android M update. I had a need to do a factory reset, but the phone would simply reboot. I assumed this was a problem with the update so I download and attempted to install the downgrade to l. Naturally it crashed mid downgrade and I thought it to be bricked. So, I started Googling and realized I was able to get into fastboot mode, but not recovery. Following a guide I located I attempted to flash the preroot ROM located at the link below:
http://forum.xda-developers.com/zenfone2/development/rom-pre-root-img-t3079590
Well, it appeared to have worked, but now the phone refused to boot at all after being turned off. So, more Googling and I proceeded to follow the full unbricking guide below:
http://forum.xda-developers.com/zenfone2/help/thead-bricked-phone-updating-to-mm-tips-t3452785
Partway through step 1.3 the phone restarted itself and booted right up into Android L! Success I thought to myself, but it was not to be. I proceeded to download the FOTA L update and it downloaded fine, but when I clicked to install it simply rebooted the phone. Tried a couple of other times with the same result. I realized that Supersu was installed so I did the full unroot assuming that was the problem, but to no avail. It appears that the updates can't install because the phone is incapable of entering fastboot or recover mode. Anytime I attempt to enter fastboot via hard key or through adb the phone hangs on the ASUS logo. Adb detects the phone when it's connected via USB, but of course fastboot can't because I can't get it into fastboot mode at all.
Any tips on how to get fastboot operational again so I can start applying updates again? Every guide I've located has started with "boot into fastboot/recovery" which simply isn't an option. Any help is appreciated.
Edit: Well, I think I've reached the end of the internet trying to google for a solution. The phone works, but it looks like it's stuck on build 2.13.40.13 until the end of its life. If anybody has any ideas I'm still hoping for a solution, but I can't find anything describing how to restore fastboot if the OS is intact.
Click to expand...
Click to collapse
You have to use full unbrick method(xfstk + raw) to restore ur device fully
xfstk will restore ur fastboot image
yakub234go said:
You have to use full unbrick method(xfstk + raw) to restore ur device fully
xfstk will restore ur fastboot image
Click to expand...
Click to collapse
Thanks for the response. I've tried this a dozen times, but unfortunately (this is going to sound weird) since it's not completely bricked it is only detected as Moorefield for a few seconds when started. This allows the xfstk tool to detect it and begin the download, but not long enough to complete the process so it times out. The only development access I have to the phone now is via adb, but since I don't have root I'm very limited in what I can do via command line. Since I can't access fastboot I can't achieve root. It's just a comedy of errors now.
kidnova said:
The backstory: I have no experience with rooting and or flashing custom ROMs. Prior to today my ze551ml was completely stock, running on the official android M update. I had a need to do a factory reset, but the phone would simply reboot. I assumed this was a problem with the update so I download and attempted to install the downgrade to l. Naturally it crashed mid downgrade and I thought it to be bricked. So, I started Googling and realized I was able to get into fastboot mode, but not recovery. Following a guide I located I attempted to flash the preroot ROM located at the link below:
http://forum.xda-developers.com/zenfone2/development/rom-pre-root-img-t3079590
Well, it appeared to have worked, but now the phone refused to boot at all after being turned off. So, more Googling and I proceeded to follow the full unbricking guide below:
http://forum.xda-developers.com/zenfone2/help/thead-bricked-phone-updating-to-mm-tips-t3452785
Partway through step 1.3 the phone restarted itself and booted right up into Android L! Success I thought to myself, but it was not to be. I proceeded to download the FOTA L update and it downloaded fine, but when I clicked to install it simply rebooted the phone. Tried a couple of other times with the same result. I realized that Supersu was installed so I did the full unroot assuming that was the problem, but to no avail. It appears that the updates can't install because the phone is incapable of entering fastboot or recover mode. Anytime I attempt to enter fastboot via hard key or through adb the phone hangs on the ASUS logo. Adb detects the phone when it's connected via USB, but of course fastboot can't because I can't get it into fastboot mode at all.
Any tips on how to get fastboot operational again so I can start applying updates again? Every guide I've located has started with "boot into fastboot/recovery" which simply isn't an option. Any help is appreciated.
Edit: Well, I think I've reached the end of the internet trying to google for a solution. The phone works, but it looks like it's stuck on build 2.13.40.13 until the end of its life. If anybody has any ideas I'm still hoping for a solution, but I can't find anything describing how to restore fastboot if the OS is intact.
Click to expand...
Click to collapse
seems like you did not install droidboot.bin correctly... only way is use xFSTK again.i have updated the link to latest raw firmware 2.20.40.194 and use the same guide and commands..
sukhwant717 said:
seems like you did not install droidboot.bin correctly... only way is use xFSTK again.i have updated the link to latest raw firmware 2.20.40.194 and use the same guide and commands..
Click to expand...
Click to collapse
The problem is that it's only recognized as Moorefield for a few seconds which isn't enough time for xFSTK to complete the install. Do you know of a way to force the device to stay connected as Moorefield?
kidnova said:
The problem is that it's only recognized as Moorefield for a few seconds which isn't enough time for xFSTK to complete the install. Do you know of a way to force the device to stay connected as Moorefield?
Click to expand...
Click to collapse
Plug the phone to the PC, be sure the phone is completely off and then hold power + vol- for a few seconds. You must see the "Moorefield" driver permanent in the device manager.
Btw... I got the same problem (four lines, not bootloader, not OS; xFSTK FW+OS failed) and I'm stuck in this step :/
mrperalta said:
Plug the phone to the PC, be sure the phone is completely off and then hold power + vol- for a few seconds. You must see the "Moorefield" driver permanent in the device manager.
Btw... I got the same problem (four lines, not bootloader, not OS; xFSTK FW+OS failed) and I'm stuck in this step :/
Click to expand...
Click to collapse
I've tried this many times, but it only shows Moorefield for a few seconds. I'm assuming this is because it has a fully operational OS so it doesn't stay in the generic USB device mode.
EDIT: I misread your original post. Holding power and volume DOWN does keep connect it in Moorefield. Thanks so much for that. The problem now is that once xFSTK gets to downloading the OS it reboots the phone which takes it out of USB mode and disconnects the tool. I'm still stuck where I was before, but that's a little progress. Any other thoughts?
New update. I'm able to get to the point of loading the OS from xFSTK by skipping the FW part, however it continuously fails. My assumption is because it can't overwrite the existing OS. Any other ideas?
kidnova said:
New update. I'm able to get to the point of loading the OS from xFSTK by skipping the FW part, however it continuously fails. My assumption is because it can't overwrite the existing OS. Any other ideas?
Click to expand...
Click to collapse
Kidnova, reading this post I could fixed my problem. The "issue" was in the xFSTK where you put the flag (0x800000807). A guy on the threat said to put "0x80000807" instead of "0x800000807" (note that there is "0" from difference).
"those who are not able to keep device connected. take care of few steps
1. in xFSTK option menu change the flag override value to 0x80000807 not 0x800000807 ( don't forget to click gp value over ride)
2. while connecting to xFSTK attach usb to computer. hold power button for 20 seconds to make sure it power downs completely. then hold the power button down and click power button. wait till device vibrate or computer makes detection sound. leave power button but keep holding the volume button for few seconds"
Click to expand...
Click to collapse
-sukhwant717
mrperalta said:
Kidnova, reading this post I could fixed my problem. The "issue" was in the xFSTK where you put the flag (0x800000807). A guy on the threat said to put "0x80000807" instead of "0x800000807" (note that there is "0" from difference).
-sukhwant717
Click to expand...
Click to collapse
You guys are lifesavers! I've got fast boot again. Now to see if I can continue without screwing it up.
FINAL EDIT: I have a 100% functional stock Zenfone 2. Thanks everybody for your help.
kidnova said:
You guys are lifesavers! I've got fast boot again. Now to see if I can continue without screwing it up.
FINAL EDIT: I have a 100% functional stock Zenfone 2. Thanks everybody for your help.
Click to expand...
Click to collapse
Hi, got the same issues, I've read many posts. Tried all of the million options. What was your final way of doing it, do you remember?
Hello to all of you,
Thanks in advance for any help you can provide.
I bought second hand a LG G4 H815 with CyanogenMod 14 already installed on it.
Everything was fine until I installed my Ebanking apps, that would not function with an unlocked bootloader. I needed to return to a clean factory safe state...
It was the second time I flashed a rom in my whole life, the first one was a Galaxy S plus years ago.
I followed all the instructions for the KDZ flash in this tutorial but I stumbled upon a "Upgrade stopped due to error" in LG flash tool.
I retried 3 or 4 times but with no luck. I verified that the ROM was correct for my model and it was. European and all...
I tried LGUP but my phone is unknown ( at least it's detected)...
I read some posts and told myself "I probably have messed up something, let's try it again with a fresh thing"... I clicked on the factory reset button and carried on.
There the phone booted on TWRP (That i didn't know existed before this). As I explored the menus with a TWRP google search on the computer, I began to realize that the factory reset was maybe a bad thing to do with a custom rom. I tried to reboot but I always end up booting on TWRP.
I re-tried to flash in download mode, but with always the "Upgrade stopped due to error".
I also tried to flash directly from TWRP a stock rom. Didn't work.
I was beginning to lose it and tried to flash the CM14 version I had before, juste to have a working phone again, but even this didn't work... I'm stuck with a TWRP phone
I need some help there...
FamousCarpet said:
Hello to all of you,
Thanks in advance for any help you can provide.
I bought second hand a LG G4 H815 with CyanogenMod 14 already installed on it.
Everything was fine until I installed my Ebanking apps, that would not function with an unlocked bootloader. I needed to return to a clean factory safe state...
It was the second time I flashed a rom in my whole life, the first one was a Galaxy S plus years ago.
I followed all the instructions for the KDZ flash in this tutorial but I stumbled upon a "Upgrade stopped due to error" in LG flash tool.
I retried 3 or 4 times but with no luck. I verified that the ROM was correct for my model and it was. European and all...
I tried LGUP but my phone is unknown ( at least it's detected)...
I read some posts and told myself "I probably have messed up something, let's try it again with a fresh thing"... I clicked on the factory reset button and carried on.
There the phone booted on TWRP (That i didn't know existed before this). As I explored the menus with a TWRP google search on the computer, I began to realize that the factory reset was maybe a bad thing to do with a custom rom. I tried to reboot but I always end up booting on TWRP.
I re-tried to flash in download mode, but with always the "Upgrade stopped due to error".
I also tried to flash directly from TWRP a stock rom. Didn't work.
I was beginning to lose it and tried to flash the CM14 version I had before, juste to have a working phone again, but even this didn't work... I'm stuck with a TWRP phone
I need some help there...
Click to expand...
Click to collapse
uninstall any drive for g4 from pc and reinstall again and lgup. now reboot phone to download mode when lgup is open first check upgrade opsion and when open kdz check refurbish opsion and start. good luck
Thank you for your answer
Still no luck
Uninstalled drivers
Rebooted PC
Reinstalled the drivers
Still unknown device
The best way to flash stock image is to use official LG Bridge app. Download it, turn off your phone, connect it to PC while holding volume up button - phone will go into download mode. Then there is option for software restore in LG Bridge but i won't tell u where exactly. If it won't work i would try on another PC. If it won't work maybe you would be able to flash stock image trough send_command but i won't help you with it.
FamousCarpet said:
Thank you for your answer
Still no luck
Uninstalled drivers
Rebooted PC
Reinstalled the drivers
Still unknown device
Click to expand...
Click to collapse
open lgup torn off the phone press volume up insert usb cable wait to see download mode on phone release up button and see if everything go fine
Thank you a lot Avantu, the LG Bridge did the trick! I now have a factory rom!
Okay, So let me start from the beginning so I'm certain I'm being descriptive enough.
The other night my G3's wifi stopped working. When I went to turn it on in settings it would turn itself back off. Which I thought was strange. So, I assumed it was a software issue so I backed up any important items and factory reset my phone last night. That went over fine. Wifi worked again, all was good. Until, it said it needed an Android Software Update. I hit "update" and allowed it to do its thing. About halfway through the update the phone said "error." With an icon of the Android bot with a hazard triangle sticking out from it. I let it be for a bit and nothing happened. So in my impatience I took the battery out and put it back in and tried to restart the phone. This is where the issue occurs. The phone keeps booting to recovery mode. I'm not savvy at all with Android so I don't know if these mean anything but it says "Android System Recovery <3e> LRX21Y" The phone has had zero modifications done to it. I would really appreciate any help or any tutorials that could save the phone until my g6 preorder comes in.
Thanks!
Kyle
Your phone failed the update for some weird reasons and is now stuck. I'm afraid you'll need to restore stock Android using LG Flash tools and KDZ files to your device. It will get your phone working, but you'll lose your data in the process.
You can try mounting the phone from recovery or download mode and see if you can access your data and backup the data. You can also try the recovery option without downloading wnloaing a KDZ first.
You can fins tutorials around the forum, in the general section usually.