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Hi
I'm helping out a friend, which O2X I have rooted and flashed WIUI on to (I previously owned one myself too)
For some reason the phone started to get hot after a while and used up the battery fast, until one day where he couldn't even turn it on again.
Now, he has been trying to fix it himself with NVflash, but no luck, so now its up to me and you guys.
I have used the smartflash tool and flashed the EURO OPEN stock ROM and everything went succesfull, but when the phone reboots, the LG logo appears, and it bootloops.
I tried both with battery and no battery in, but still no cigar.
Any suggestions what I should try next?
PS: If I try to turn on the phone normally, nothing happens. not even a blink from the screen, but I can get into S/W mode and APX
Try lg update tool, choose recover as option, then choose imei as entrance
SuperSkill said:
Try lg update tool, choose recover as option, then choose imei as entrance
Click to expand...
Click to collapse
EDIT: The software says the update is not compatible (dunno if translation is correct, but you get the point)
Update is aborted :/
No more suggestions on what to do?
Tried:
NVflash
Smartflash (Flashed EURO OPEN rom)
LG Update tool (recover function)
The phone still won't boot.
Smartflash is the only solution like you said that the phone can boot in s/w mode try to dig some answer in smartflash thread or search in google i know you can find some answer there
Sent from my Optimus 2X using xda premium
Assuming you have carried out the procedures correctly, looks like this device is actually defective. Probably not what you want to hear, I know, but...
Before giving up completely, you can NVFlash it again (using the original 10C NVFlash from Modaco) and post the log here. Wouldn't get my hopes up though.
My LG Optimus Black P970 is bricked, its stuck at LG boot logo n I have already tried the following methods to unbrick:
1.Smartflash (flashing fls & bin files- flashes successfully but still stuck at LG logo)
2.LG Update tool - Recovery mode- flashes successfully but still stuck at LG logo)
3.KDZ (fails, coz phn not booting in emergency mode)
The guy at service center said the circuit may have been damaged coz he was unable to find the COM port (but I still get a COM port automatically in Smartflash tool) for his official LG upgrade tool. Do u have any idea if its possible to unbrick this device?
I have had such bootloops earlier, but I solved it using CWM recovery when I had it installed, while I used the recovery mode of LG Update tool (B2C) when I didnt have CWM recovery installed. This time nothing's working!!!
niraj87 said:
My LG Optimus Black P970 is bricked, its stuck at LG boot logo n I have already tried the following methods to unbrick:
1.Smartflash (flashing fls & bin files- flashes successfully but still stuck at LG logo)
2.LG Update tool - Recovery mode- flashes successfully but still stuck at LG logo)
3.KDZ (fails, coz phn not booting in emergency mode)
The guy at service center said the circuit may have been damaged coz he was unable to find the COM port (but I still get a COM port automatically in Smartflash tool) for his official LG upgrade tool. Do u have any idea if its possible to unbrick this device?
I have had such bootloops earlier, but I solved it using CWM recovery when I had it installed, while I used the recovery mode of LG Update tool (B2C) when I didnt have CWM recovery installed. This time nothing's working!!!
Click to expand...
Click to collapse
No.1 POST IN THE Q&A SECTION
No.2 Could be hardbrick
Sent from my LG-P970 using Tapatalk 2
niraj87 said:
My LG Optimus Black P970 is bricked, its stuck at LG boot logo n I have already tried the following methods to unbrick:
1.Smartflash (flashing fls & bin files- flashes successfully but still stuck at LG logo)
2.LG Update tool - Recovery mode- flashes successfully but still stuck at LG logo)
3.KDZ (fails, coz phn not booting in emergency mode)
The guy at service center said the circuit may have been damaged coz he was unable to find the COM port (but I still get a COM port automatically in Smartflash tool) for his official LG upgrade tool. Do u have any idea if its possible to unbrick this device?
I have had such bootloops earlier, but I solved it using CWM recovery when I had it installed, while I used the recovery mode of LG Update tool (B2C) when I didnt have CWM recovery installed. This time nothing's working!!!
Click to expand...
Click to collapse
Did you already try to boot to recovery via adb? If not, do it abd restore a nandroid then. What ROM did you have on your phone before it bricked and why did it brick?
And please someone report this thread, so it gets moved to Q&A, I cant, because I am on the phone...
Sent from my LG-P970 using xda app-developers app
Unfortunately, adb is not recognizing the device after bricking, but LG Update tool and Smartflash both are.
I had flashed 4-5 unofficial Jellybean and ICS ROMs in a span of a week before bricking. The latest OS I had flashed was LG official Gingerbread (which is when I lost root and CWM) n everything was working great, then I again badly wanted Jellybean, so I flashed a patched 2.3 OS using ROM converter (only to bring root again, coz this time unlockroot could not root it) n since then I have flashed using all the above mentioned methods countlessly, to ultimately brick it badly.
Left battery out of phone hole night, then put it in, try to start phone.This helped me. Is good to have battery charged.
Good luck.
Sent from my LG-P970 using xda app-developers app
I m sry I didnt understand this part "Is good to have battery charged" as well as the logic behind the pulling out of battery, could u plz explain?
Hi I had the same yesterday flash v30b official and than it will be ok
Wysyłane z mojego LG-P970 za pomocą Tapatalk 2
remove battery, enter in recovery mode : vol + and plug usb , flash with SFT with a good rom
Thread moved as questions do not belong in Development however urgent you feel your question is. Please post in the correct section going forward.
Thanks
AvRS
Pirmin81 said:
Hi I had the same yesterday flash v30b official and than it will be ok
Wysyłane z mojego LG-P970 za pomocą Tapatalk 2
Click to expand...
Click to collapse
I just installed the official ICS using Smartflash like u said, but my phone could not unbrick . I guess it might me a hardware failure. Any ideas?
I have a similar question: my friend wanted me to upgrade his FroYo software to ICS on her P970, and it kept failing the upgrade and it now cannot boot, having "Software upgrade" sign on the screen all the time...
Any ideas? Thanks in advance!
To niraj87:
To have battery charged at least 90%.
Sent from my LG-P970 using xda app-developers app
Calmdown
Try another USB port and different Rom. I spend a lot of time trying unbriked phone. I 've started from v28c next 30b
Good luck
Wysyłane z mojego LG-P970 za pomocą Tapatalk 2
Maybe you already done this but did you md5 checked the files you are downloading?
You maight be trying to flash a corrupted download.
Just a thought.
Hope you can unbrick your phone.
agtpirrone said:
Maybe you already done this but did you md5 checked the files you are downloading?
You maight be trying to flash a corrupted download.
Just a thought.
Hope you can unbrick your phone.
Click to expand...
Click to collapse
I dont know how to check md5, but I'm no downloaded ROM was corrupt.
niraj87 said:
I dont know how to check md5, but I'm no downloaded ROM was corrupt.
Click to expand...
Click to collapse
Just to make sure, download md5.exe (if you are on windows) and run the command from the folder (exe and the downloader file in same folder)
md5 Name_of_downloaded_rom.zip (or anything)
You will have to have the original md5 hashes (if you download from dev host you can have it from the download page)
I have been using zeus v7.6 perfectly untill today. While i was texting someone the screen started wobbling arround. (behaving a bit like the windows xp error message when you move it arround and it leaves a trail behind it). i tried restarting in recovery mode but freezed on the lg logo, having a small faint wite line at the bottom of the screen. I have tried smartflash tool with no succes, and i have also tried the script from the cotkey, but it gets stuck at the first step. Also, i cannot interact with the KDZ updater ... I could really use some help, as i cannot afford a new phone :-/
HeinekenAmstel said:
I have been using zeus v7.6 perfectly untill today. While i was texting someone the screen started wobbling arround. (behaving a bit like the windows xp error message when you move it arround and it leaves a trail behind it). i tried restarting in recovery mode but freezed on the lg logo, having a small faint wite line at the bottom of the screen. I have tried smartflash tool with no succes, and i have also tried the script from the cotkey, but it gets stuck at the first step. Also, i cannot interact with the KDZ updater ... I could really use some help, as i cannot afford a new phone :-/
Click to expand...
Click to collapse
Have you tried to remove battery and connect the phone by usb to pc, pressing vol + button?
danielr18 said:
Have you tried to remove battery and connect the phone by usb to pc, pressing vol + button?
Click to expand...
Click to collapse
Yes, i have entered S/W mode. Smartflash tool finds my phone, i set the CP and AP bin, it tells me it finished with the ""TADA"" noise and my phone restarts... well, it doesnt start, it just stays on the lg logo with the lights flashing :-/. I have tried many different versions but none starts :-/ Thank you for replying btw
AW: [Q] Bootlooping on LG optimus Black
HeinekenAmstel said:
Yes, i have entered S/W mode. Smartflash tool finds my phone, i set the CP and AP bin, it tells me it finished with the ""TADA"" noise and my phone restarts... well, it doesnt start, it just stays on the lg logo with the lights flashing :-/. I have tried many different versions but none starts :-/ Thank you for replying btw
Click to expand...
Click to collapse
B2C app and emergency recovery? The lg update tool...
Sent from my LG-P970 using xda app-developers app
N00BY0815 said:
B2C app and emergency recovery? The lg update tool...
Sent from my LG-P970 using xda app-developers app
Click to expand...
Click to collapse
I have tried it allready in the past with no succes :-/ idk why, but last time i managed to unbrick it it had quite a bit of luck involved... my basic problem is that im from a laptop and its in greek. theres something wrong with the language and i can only see symbols ... ill try again in the evening and ill let you know
Ran the KDZ updater but phone stiil stays on the lg logo...
Still unsuccessfull... Here is the log file:
AW: [Q] Bootlooping on LG optimus Black
HeinekenAmstel said:
Still unsuccessfull... Here is the log file:
Click to expand...
Click to collapse
Looks strange... do you also have a log of sft? And do you run those programs as admin? You re on XP right? Did you already disable your antivirus? Try another usb port/pc? Are you sure yourr files are good? Maybe dl the v20s from my noob how to and compare md5 sums afterwards.
Sent from my LG-P970 using xda app-developers app
no, i have not tried disabling antivirus and i am using windows 7. i will disable antivirus now and send you the SfT Log
Smart Flash Log
Here is the Smart Flash log
AW: [Q] Bootlooping on LG optimus Black
HeinekenAmstel said:
no, i have not tried disabling antivirus and i am using windows 7. i will disable antivirus now and send you the SfT Log
Click to expand...
Click to collapse
Did you run sft as admin? And follow the readme? You have to disable something in the device manager.
Sent from my LG-P970 using xda app-developers app
great, lg emergency recovery tool tells me this model is not supported for upgrading =.=
Similar problem, I was on Huexs´s 6.4, was rooted, recovery was working, then I flashed v30d by tantrums, was using it without problems, then some problems with sd card, from that point I am not able to run recovery, so I tried to flash patched v20 with Smartflash, but when it goes to rebooting, it always stay in bootloop. Only way for me is flash v30b, then root it with Unlockroot, but thats all, I can normaly use phone rooted, but I am not able to push to phone recovery image, so I can not flash any zip file ( like new kernels. etc.).
Managed to flash V30b
i managd to flash the v30b by the kdz updater but... Everything was working normally. I shut off the phone so i can go to sleep and i put it to charge. the picture i got is the lg logo with a white faint line down the bottom of the screen again. I unplug the charger and remove the battery. The next morning it worked perfectly again for aprox. 9 hours, that i was at school. Then i try texting my gf and the pictures below show what happened... WTH? Any help would be deeply appreciated :-/
OMG are you getting the same problem as redy ? O.O That crazy screen looks like his. :/
Sent from my LG-P970 using Tapatalk 2
what prob has redy got?
I got some news about this prob. When it starts, if i lock the device am continue after a while it works ok again for a bit
Sent from my half working LG-P970 using xda app-developers app
@robusto try flashing v30B. then root your OB and flash TWRP recovery. You can do it like this:
1. Install goomanager
2. Open goomanager and provide root permision
3. Hit menu and choose 'Install OpenRecovery'.
Now you have TWRP Recovery and you should be able to flash any .zip file.
It worked for me.
(or you can get twrp recovery just by pushing the twrp recovery image file using terminal emulator).
Good luck!
(sorry for my bad english x_x).
Sent from my LG-P970 using xda premium
AW: [Q] Bootlooping on LG optimus Black
GPaul said:
@robusto try flashing v30B. then root your OB and flash TWRP recovery. You can do it like this:
1. Install goomanager
2. Open goomanager and provide root permision
3. Hit menu and choose 'Install OpenRecovery'.
Now you have TWRP Recovery and you should be able to flash any .zip file.
It worked for me.
(or you can get twrp recovery just by pushing the twrp recovery image file using terminal emulator).
Good luck!
(sorry for my bad english x_x).
Sent from my LG-P970 using xda premium
Click to expand...
Click to collapse
I am quite sure this wont work... security error...
Sent from my LG-P970 using xda app-developers app
any idea on how can i restore my imei from the S/W upgrade screen?
the lg united tool reads wrong imei and does not even start upgrading.
I am now on stock V30B Europe, rooted by unlockroot, uninstalled garbage and apps, whitch I dont need, using Holo launcher and LMT and am satisfied, bechmark with antutu 3100. Only I am not able change kernel, what could be phone speed up, but nevermid. I can live with it. Only can be good to convert some kernel.zip to same file, whitch can be flashed with kdz flasher or smartflashtool. Anyway thanks for ideas.
---------- Post added at 06:07 PM ---------- Previous post was at 05:53 PM ----------
HeinekenAmstel, try to left out of phone the battery for one day, then try to flash kdz v30b for your country from here http://lg-phone-firmware.com/index.php?id_mod=1, but connect phone to PC without battery in. And may be is good to do it on PC with WIN XP. For me this is working better then on PC with WIN7. Good luck.
İ help to flash kdz my phone . I want to tell my troubleshooting. Fırst I rooted phone next I unlocked the bootloader and Installed cwm recovery
But I did wrong thing I touched to reboot into Fınally My phone restarting but it is staying in starting lg icon dont open please helpppppp !!!!:crying::crying::crying::crying::crying::crying:
life4lg said:
İ help to flash kdz my phone . I want to tell my troubleshooting. Fırst I rooted phone next I unlocked the bootloader and Installed cwm recovery
But I did wrong thing I touched to reboot into Fınally My phone restarting but it is staying in starting lg icon dont open please helpppppp !!!!:crying::crying::crying::crying::crying::crying:
Click to expand...
Click to collapse
Once you have the cwm power+volume down press together and wait till cwm shows up. Then you can use as you probably planned to do with onlocking and flashing cwm.
On your pc you can download rom and transfer via usb /mount usb or smth like that
Then follow instructions of rom devs to install.
If that doesn't seem to work, you should force an update through the LGMobile Support Tool. Then start over again. You probably didn't unlock your bootloader properly (you can check it in the hidden menu or in S/W Upgrade mode), or you flashed a wrong recovery.. Good luck
Sent from my Nexus 7 using xda app-developers app
Good morning,
I recently decided to attempt to root my LG G4 and install a custom ROM. I was able to unlock the bootloader and boot TWRP, but at this point I received an error when I tried to install the Cyanogenmod ROM that I had downloaded.
At this point, my phone is a brick. If I turn it on normally, the LG screen comes up and stays. There is a message in the upper lefthand corner saying that the bootloader is unlocked.
I am able to boot into download mode. I have tried using LGUP and the LG Flash Tool 2014 to flash the original kdz but I get connection errors with both approaches.
Any ideas what my next course of action should be?
Thanks in advance!
Mine is doing the same thing and I am getting errors on 9% on both versions of tools version 2014 and 2016. No one has an idea why? I have done this unit before what out any problems!
Use lg up and the newest kdz (20o). Manually enter download mode and then start lg up. Also you might have to download and install lg drivers onto your PC.
Sent from my LG-H811 using Tapatalk
dtomlin said:
Use lg up and the newest kdz (20o). Manually enter download mode and then start lg up. Also you might have to download and install lg drivers onto your PC.
Sent from my LG-H811 using Tapatalk
Click to expand...
Click to collapse
This is what solved the issue for me. I simply had the wrong KDZ. The 20o is the one I needed.
My lg g4 got the fault in the system where it stuck in the bootloader and all I did was us lg up and kdz 10n and the phone didn't boot but I was able to return it and get a phone because when you do that your deleted everything off it and making it to where it was when it came out of the box
dtomlin said:
Use lg up and the newest kdz (20o). Manually enter download mode and then start lg up. Also you might have to download and install lg drivers onto your PC.
Sent from my LG-H811 using Tapatalk
Click to expand...
Click to collapse
Well I tried using the 20o but it is still stuck on logo. Followed your steps but unfortunately it didn't work for me.
Sent from my iPhone using Tapatalk
otto68 said:
Well I tried using the 20o but it is still stuck on logo. Followed your steps but unfortunately it didn't work for me.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
you may have the infamous bootloop if you dont know do a search lg g4 bootloop... if so you must sent it to LG theres no way to fix it only LG.
mikespan said:
Good morning,
I recently decided to attempt to root my LG G4 and install a custom ROM. I was able to unlock the bootloader and boot TWRP, but at this point I received an error when I tried to install the Cyanogenmod ROM that I had downloaded.
At this point, my phone is a brick. If I turn it on normally, the LG screen comes up and stays. There is a message in the upper lefthand corner saying that the bootloader is unlocked.
I am able to boot into download mode. I have tried using LGUP and the LG Flash Tool 2014 to flash the original kdz but I get connection errors with both approaches.
Any ideas what my next course of action should be?
Thanks in advance!
Click to expand...
Click to collapse
Message tungkick. He fix ANYTHING. He did mine. Mine was just like yours. He fixd it in ten minutes(from his computer)
Hit thnx if this helpd
otto68 said:
Well I tried using the 20o but it is still stuck on logo. Followed your steps but unfortunately it didn't work for me.
Sent from my iPhone using Tapatalk
Click to expand...
Click to collapse
One small thing you might want to try first. Open LGUP with your phone connected in download mode. Choose the kdz file you want to use, then CLOSE LGUP (leaving the phone connected). Then reopen LGUP and the kdz file should still be selected. Then click Start.
mikespan said:
Good morning,
I recently decided to attempt to root my LG G4 and install a custom ROM. I was able to unlock the bootloader and boot TWRP, but at this point I received an error when I tried to install the Cyanogenmod ROM that I had downloaded.
At this point, my phone is a brick. If I turn it on normally, the LG screen comes up and stays. There is a message in the upper lefthand corner saying that the bootloader is unlocked.
I am able to boot into download mode. I have tried using LGUP and the LG Flash Tool 2014 to flash the original kdz but I get connection errors with both approaches.
Any ideas what my next course of action should be?
Thanks in advance!
Click to expand...
Click to collapse
Have you try booting into download and open LG Bridge, software update and follow the steps it tells you?
Mine randomly restarted and entered a boot loop on the way into work today. I couldn't enter recovery. I just let it loop. When I checked it when I got to work about 30 minutes later, the screen was dark and I figured it had died. It was booted to my lock screen. The weird part is that all of my "recent apps" were still open. I'd taken the battery out several times. It now reboots without issue. Perhaps I slipped into an alternate universe where my phone didn't die on the way to work. #mandellaeffect
dtomlin said:
Use lg up and the newest kdz (20o). Manually enter download mode and then start lg up. Also you might have to download and install lg drivers onto your PC.
Sent from my LG-H811 using Tapatalk
Click to expand...
Click to collapse
Hello,I got trouble connecting the LGUP. It tells me the device model is unknown so I can't choose it.I guess it's because I edited the build.prop:crying: Could you tell me how to rescue my phone?