Hi, I have an LG G4 that is boot looping, I have changed firmware in the past using LG UP and factory reset G4's before.
But when I hold volume up and plug in the usb cable, it goes to the 'download mode' screen but never reaches the firmware update screen, anyone had this problem before? This happens every time I try.
And when I try to do a factory reset by holding vol down and power and release and re pressing the power button it goes into the factory reset options, but it freezes on the last screen and won't actually start resetting.
So I can't use LG UP or LG flash tool as it won't go into firmware update mode.
Any Ideas?
Thank you.
mikeyrut said:
Hi, I have an LG G4 that is boot looping, I have changed firmware in the past using LG UP and factory reset G4's before.
But when I hold volume up and plug in the usb cable, it goes to the 'download mode' screen but never reaches the firmware update screen, anyone had this problem before? This happens every time I try.
And when I try to do a factory reset by holding vol down and power and release and re pressing the power button it goes into the factory reset options, but it freezes on the last screen and won't actually start resetting.
So I can't use LG UP or LG flash tool as it won't go into firmware update mode.
Any Ideas?
Thank you.
Click to expand...
Click to collapse
Open "Device Manager" in windows and see if windows is not changing your device driver automatically...
I have got it to go into firmware update mode, and I used LG UP to install 5.1 firmware and used the big core disable tot, it was up and running fine, then suddenly turned off.
Now it's boot looping again and when i go to go into recovery mode, it's on the download mode screen and just goes black and turns itself off again.
Any ideas?
mikeyrut said:
I have got it to go into firmware update mode, and I used LG UP to install 5.1 firmware and used the big core disable tot, it was up and running fine, then suddenly turned off.
Now it's boot looping again and when i go to go into recovery mode, it's on the download mode screen and just goes black and turns itself off again.
Any ideas?
Click to expand...
Click to collapse
Try reflash a kdz file following this method:
http://forum.xda-developers.com/g4/help/lgup-install-kdz-mm-lp-t3249803
Hope it helps
Related
Hello, So i tryed to flash to CM10 rom for LG E970 and my screen went black after reboot. So then I tried t go back to stock with LGNPST and it would get to the logo and stop. So then (lol) I tried using a teenybin instead and now I can't get download mode to show up and all the screen will do it show a gray battery with a lighting bolt and sometimes when trying to power on or get to download mode it'll act like it's about to do something and shows a black screen with google in grey and an unlocked lock at the bottom of the screen. Help is all lost or can i fix this??
Dreadingdawn said:
Hello, So i tryed to flash to CM10 rom for LG E970 and my screen went black after reboot. So then I tried t go back to stock with LGNPST and it would get to the logo and stop. So then (lol) I tried using a teenybin instead and now I can't get download mode to show up and all the screen will do it show a gray battery with a lighting bolt and sometimes when trying to power on or get to download mode it'll act like it's about to do something and shows a black screen with google in grey and an unlocked lock at the bottom of the screen. Help is all lost or can i fix this??
Click to expand...
Click to collapse
Use the KDZ Updater with the latest firmware version of your phone...
First, download and install the latest lg driver. (your phone must be unplugged when installing)
Second, download the LG E970 kdz.
Third, "google" and install the kdz updater.
Fourth, put your phone in "Download mode" by pressing both volume keys and plug into usb port (wait 2-3 seconds, your computer will load the driver)
Fifth, open the kdz updater and select "3GQCT" in type...and "CS_Emergency" in phone mode. Then browse & select the kdz you've just downloaded...and press the Launch button. It should take about 8-10 minutes to complete...your phone will reboot around param.94 then you can unplugged it and let it boot normally.
Finally, make a "factory reset" to erase all previous data and plug your phone to wall charger to gave him some fresh blood.
Give us some feedback & good luck :good:
Sent from my AOSP on geeb_att_us using xda premium
Dreadingdawn said:
Hello, So i tryed to flash to CM10 rom for LG E970 and my screen went black after reboot. So then I tried t go back to stock with LGNPST and it would get to the logo and stop. So then (lol) I tried using a teenybin instead and now I can't get download mode to show up and all the screen will do it show a gray battery with a lighting bolt and sometimes when trying to power on or get to download mode it'll act like it's about to do something and shows a black screen with google in grey and an unlocked lock at the bottom of the screen. Help is all lost or can i fix this??
Click to expand...
Click to collapse
Try to get in donwload mode pushing together volume+ and volume- and then plug in the usb cable (to your pc) do not release the buttons until you see the download mode logo on the screen. The phone has to be off before doing the procedure if it wont turn off , push the power button for something like 15 sec, should go off that way
Good luck and in the event that you can't go in download mode anymore , take it to assistance. It's the only way.
JasonBourne.Qc said:
Use the KDZ Updater with the latest firmware version of your phone...
First, download and install the latest lg driver. (your phone must be unplugged when installing)
Second, download the LG E970 kdz.
Third, "google" and install the kdz updater.
Fourth, put your phone in "Download mode" by pressing both volume keys and plug into usb port (wait 2-3 seconds, your computer will load the driver)
Fifth, open the kdz updater and select "3GQCT" in type...and "CS_Emergency" in phone mode. Then browse & select the kdz you've just downloaded...and press the Launch button. It should take about 8-10 minutes to complete...your phone will reboot around param.94 then you can unplugged it and let it boot normally.
Finally, make a "factory reset" to erase all previous data and plug your phone to wall charger to gave him some fresh blood.
Give us some feedback & good luck :good:
Sent from my AOSP on geeb_att_us using xda premium
Click to expand...
Click to collapse
Rockguy40 said:
Try to get in donwload mode pushing together volume+ and volume- and then plug in the usb cable (to your pc) do not release the buttons until you see the download mode logo on the screen. The phone has to be off before doing the procedure if it wont turn off , push the power button for something like 15 sec, should go off that way
Good luck and in the event that you can't go in download mode anymore , take it to assistance. It's the only way.
Click to expand...
Click to collapse
Hey thanks for the help guys :good: but it's not even charging anymore and has died lol so i'm gonna let the nice folks over at mobiletechvideos.com JTAG it. Again thanks!! :fingers-crossed:
Hi, I messed up my installing a ROM so had to get the tablet back to stock, I used the LG Recovery tool, however after it had finished my tablet is now stuck in a boot loop. I've tried running the utility multiple times but it seems to not work.
My tablet is a UK version and the firmware that the utility has installed is V50020D, I dont know if they are compatible or not, if anyone has any idea what to do please let me know.
chris24680 said:
Hi, I messed up my installing a ROM so had to get the tablet back to stock, I used the LG Recovery tool, however after it had finished my tablet is now stuck in a boot loop. I've tried running the utility multiple times but it seems to not work.
My tablet is a UK version and the firmware that the utility has installed is V50020D, I dont know if they are compatible or not, if anyone has any idea what to do please let me know.
Click to expand...
Click to collapse
Now you have to do a factory reset.
LG G Pad 8.3 Factory Reset Mode:
1. With Device Powered Off And Unplugged
2. Press and hold Power Button + Volume Down
3. When the LG logo shows up, release the power button only
4. Now press and hold the Power and Volume Up button while keeping your hold on the Volume Down button
5. When the factory reset screen appears, release your hold on all buttons
6. Follow On Screen Indications
Hi, I'm trying to find a way to try to recover an LG D680 smartphone. I have a weird problem with it. It used to get stuck on LG's Logo boot. I used Download Mode and LG Mobile Tool to fix it and update it. Everything was ok but 1 month later this happened again, but this time it cannot get fixed.
I tried to reinstall software through KDZ and flash tools (2014) in Normal and CSE mode. I tried Iusacell (AT&T) images (V10A_, V10B_, V20A_ and V20B_) wich are Jelly and Kitkat versions of images. Last I tried to reinstall with V20A_ Factory Free image and still problem, but now there's another problem. It seem that there are not really hardware issues since device is correctly recognized in Windows System, can enter Download Mode, LG Flash Tool can still manipulate hardware (Install, reboot and finish install). The new problem is that even after reinstalling any of the images it keep looped and stuck at the "Android Hard Reset" icon, the one of the Android with the red triangle.
I tried using fastboot and adb but devide is not recognized by fastboot device even after installing drivers.
Is there another way to completely wipe ROM and install System and Boot clean? I already have system.img and boot.img files, but can't find a way to do this nor what I do works.
Zoditu said:
Hi, I'm trying to find a way to try to recover an LG D680 smartphone. I have a weird problem with it. It used to get stuck on LG's Logo boot. I used Download Mode and LG Mobile Tool to fix it and update it. Everything was ok but 1 month later this happened again, but this time it cannot get fixed.
I tried to reinstall software through KDZ and flash tools (2014) in Normal and CSE mode. I tried Iusacell (AT&T) images (V10A_, V10B_, V20A_ and V20B_) wich are Jelly and Kitkat versions of images. Last I tried to reinstall with V20A_ Factory Free image and still problem, but now there's another problem. It seem that there are not really hardware issues since device is correctly recognized in Windows System, can enter Download Mode, LG Flash Tool can still manipulate hardware (Install, reboot and finish install). The new problem is that even after reinstalling any of the images it keep looped and stuck at the "Android Hard Reset" icon, the one of the Android with the red triangle.
I tried using fastboot and adb but devide is not recognized by fastboot device even after installing drivers.
Is there another way to completely wipe ROM and install System and Boot clean? I already have system.img and boot.img files, but can't find a way to do this nor what I do works.
Click to expand...
Click to collapse
If it is looping on LG's boot animation, then you should boot into stock recovery and do a factory reset from there - saved me from sending my E988 to service last time I flashed stock. Try one of these recovery combos: Vol Up + Power, Vol Up + Vol Down + Power, Vol Up + Home + Power, one of those should work. My E988 uses Vol Up+ Power - have to press both while device is powered off, and keep them pressed until capacitive buttons flash twice. Not sure how will that work on D680 though (is that a G Pro Lite?)
ShadySquirrel said:
If it is looping on LG's boot animation, then you should boot into stock recovery and do a factory reset from there - saved me from sending my E988 to service last time I flashed stock. Try one of these recovery combos: Vol Up + Power, Vol Up + Vol Down + Power, Vol Up + Home + Power, one of those should work. My E988 uses Vol Up+ Power - have to press both while device is powered off, and keep them pressed until capacitive buttons flash twice. Not sure how will that work on D680 though (is that a G Pro Lite?)
Click to expand...
Click to collapse
Yep! It's an G Pro Lite. I'm still trying some of th combinations. What is stock recovery? Should it show more options than just hard reset?
Zoditu said:
Yep! It's an G Pro Lite. I'm still trying some of th combinations. What is stock recovery? Should it show more options than just hard reset?
Click to expand...
Click to collapse
If it's anypart similar to ones found on E98x, it will have only hard reset, update install and reboot options. I really don't know much about Lite series, probably there is more info about recovery in their subforum here.
Hi,
I unlocked via LG dev my phone yesterday, it worked fine, then installed TWRP and SuperSU. Then I restarted my phone and now I do net get into any bootloader anymore. I can use the Hardware Button combination to get into IMEI display screen, but nothing more. I always get the screen Bootloader unlocked then get into LG Logo animation and that's it.
Nothing more.
Sometimes I can start over and over again and I can get my phone recognized by adb, but it says "unauthorized" or "offline".
What can I do now?
Or is it bricked and cannot be used anymore?
edit: I got it in that state that I am not authorized with adb.
I put my pub key in /data/misc/adb/adb_keys on the SD Card, but it seems that its not working...
bye LG
I can use LG Flash tool until the screen to flash the image, then it gets stuck on 0% on my phone and the connection is failed.
What else can I try?
lg022 said:
I can use LG Flash tool until the screen to flash the image, then it gets stuck on 0% on my phone and the connection is failed.
What else can I try?
Click to expand...
Click to collapse
Use the button combo to get into the factory reset screen. If twrp installed it will not reset but open twrp when going through the reset.
Sent from my LG-H815 using XDA Labs
steadfasterX said:
Use the button combo to get into the factory reset screen. If twrp installed it will not reset but open twrp when going through the reset.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
I can only use the combo to get into IMEI Display screen. Then I can get into boot animation screen. I cannot get into TWRP.
I can use lg flash tool 2014 and it will get until the screen on phone is at 0% copying, but it will not go further.
And I can get the phone to be regognized from adb, but it is unauthorized. What can I do that it will be authorized?? Is it possible to do that without being into andoir OS?
lg022 said:
I can only use the combo to get into IMEI Display screen. Then I can get into boot animation screen. I cannot get into TWRP.
I can use lg flash tool 2014 and it will get until the screen on phone is at 0% copying, but it will not go further.
And I can get the phone to be regognized from adb, but it is unauthorized. What can I do that it will be authorized?? Is it possible to do that without being into andoir OS?
Click to expand...
Click to collapse
Do you have tried this exactly?
The only valid and always working and supported way on getting with a hardware key combo(!) into twrp is using the factory reset screen.
Any other key combo like vol up + power depends on the kernel of the ROM! So it may work or not. Factory reset will work always.
For this you have to ensure that you have the latest twrp version really installed(!) because if twrp sits in recovery it will ignore the factory reset command when going through it.
Power down and pull out the battery. Do not forget to remove any USB cable.
Press power down and hold it down. Put battery back while keeping vol down pressed. Press power button and keep now both buttons pressed. When you see the LG logo the first time just release the power button for 1 second ( do not release vol down ) and then press power again and keep both pressed until you see the factory reset screen.
Once you see that screen just go through the steps like you would do a factory reset. If twrp is installed you will just open twrp without wiping any data. Again it is mandatory to have twrp installed otherwise it would really reset your device.
Click to expand...
Click to collapse
Sent from my LG-H815 using XDA Labs
Okay i has another hw Key Combo. I cant get into this Menu and Can Reset the Phone. I will get the Android Animation and the Phone restarts but now i am stuck on LG screen without Animation and the bootloader unlocked above.
Now what?
lg022 said:
Okay i has another hw Key Combo. I cant get into this Menu and Can Reset the Phone. I will get the Android Animation and the Phone restarts but now i am stuck on LG screen without Animation and the bootloader unlocked above.
Now what?
Click to expand...
Click to collapse
Go into download mode and use LG up to flash a stock rom seems to be the next step you should try.
Sent from my LG-H815 using XDA Labs
Download Mode?
steadfasterX said:
Go into download mode and use LG up to flash a stock rom seems to be the next step you should try.
Sent from my LG-H815 using XDA Labs
Click to expand...
Click to collapse
It is still the same problem. I can use the LG Flash tool, but it won't start the flash. It is stuck at 0% and the Flashing Tool says that the connection to server is failed.
I can still go into the reset menu, but it will do nothing.
Hi.
I have an LG G3 Verizon.
When I press power button LG logo appear but after 5 seconds it automatically turns off but after it turned off it does not turn on even puting battery out and in then i have to wait couple of mints when i have been able to do this again. I can go into system official recovery .But when i try to go into download mode by connecting with computer,mobile shows that it is going to download mode but it again turns off and same thing happens and i have to wait for couple of mints.Similar thing happens when i try to factory reset or any option in download mode