Hey all,
The other day I used my G Pad as normal, went out came back a few hours later and found all my apps to be crashing. I figured something was just acting up and a reboot would help. Rebooted, got stuck in a boot loop. Tried to factory reset, no luck. Tried using the LG Mobile Support tool, then factory resetting again, still boot looping.
It still charges, turns on, can get into download mode as well as the factory reset screen, but none of those things are getting me through this boot loop.
Prior to all this, I was running stock with root. That's it. Never flashed any ROMs or ran any crazy apps. I'm gutted this is happening after I've used numerous Android devices in the past that I rooted, ROM'd, etc. and never bricked.
Is there anything else I can try? It's out of warranty and I imagine LG repairs would cost nearly as much as a new unit caught on sale.
Appreciate any help. Thanks.
Try using smartflash tool. Not sure if it will work on the GPad but can't hurt if nothing else works
Sent from my LG-V500 using XDA Free mobile app
Symptoms are exactly what I experienced a couple of weeks ago. Like you, I tried factory resets and all options in the LG mobile support tool - no luck, it continued to boot loop. Mine was rooted but stock, like yours.
Sorry to tell you, I sent mine to LG (it was still under warranty), and they had to "replace flash RAM", according to the ticket. Very quick turnaround,and it's working perfectly now. I don't know what the process would cost you.
Hope you find a solution...this is a perfect tablet for my uses,and I'm glad to have it working again.
There is an offline LG flash tool which allow you to set up a http server and cheat the LG support tool to flash a local kdz ROM file. Since you can enter the download mode. This way definitely works. Just search the offline kdz tool in the forum.
Related
I have an LG P903, the Optimus 4G LTE from Bell in Canada.
I wanted to see if there were any good custom ROMs for it so I installed CWM using this thread:
http://forum.xda-developers.com/showthread.php?t=1410454
Which worked like a charm.
Then I went on to install Kernelpan1c's 0.3 ROm form here:
http://forum.xda-developers.com/showthread.php?t=1459610
My device proceeded to bootloop. So I intially jsut restored my nandroid backup that I had made, it continued to bootloop so naturally I read through that thread and pretty much all the other threads in the Nitro HD forums to no avail.
I came across this thread:
http://forum.xda-developers.com/showthread.php?t=1412367
So I decided to do that. I tried various ways of working through that thread and read and searched and read and searched, I worked it out trying download mode, flashing various version trying to even be able to go into CWM but I just get the same LG logo boot loop. Ive tried and tried and tried but I can't get past it.
So I've done everything the video says to not be a noob, yet I guess I still am. I desperatley need some help if anyone can help me.
The big thing was flashing SU640 with kdz_fw_upd_en or with uptestex_mod2_marwin.exe wouldnt work no matter what I tried.
Can you try formatting /data manually:
http://forum.xda-developers.com/showpost.php?p=22533342&postcount=235
Then re-install my ROM and see if it boots
If you need more detail than kernelpan1c's post, I put this together for someone else.
http://forum.xda-developers.com/showpost.php?p=22535632&postcount=100
Yeah, neither of those work because I'm unable to boot into CWM or have the phone detected and be able to use adb shell.
I just went into the Bell store and told the guys exactly what I did, step by step I even told them it was rooted/screwed around with and they said thats fine, apparently the plan I have actually covers that. So they're sending off to LG to get repaired, they said that if LG refuses to repair it because it's rooted that they'll replace it for me.
However just as a fail safe, I still wanna investigate what happened.
So adb shell wouldn't work for some reason, saying it wouldn't recognize it, however the other two programs and the mobile support tool did. When i botted into recovery (tapped the power button twice and so on) it wouldn't do stock recovery or boot into CWM.
Thanks for the help anyway, but any other ideas?
I'm posting this just because it might be helpful for others, as well as providing some warning for anyone else who might one day get into the same situation.
I was rooted and had installed TWRP on my new Gpad 7.0 V410 and everything was running just fine. I've been modding Android devices for years and thought I knew what I was doing. I didn't like the AT&T boot animation and thought I'd replace it. I found the stock animation in system/media, and replaced it (with a Nexus 7 ani) just like I'd done on previous devices.
When I rebooted, the animation started and ran. But then it hung, and rebooted. It was now stuck in a bootloop. Well, no problem, I thought, I'll just get back into recovery and restore the stock ani.
That was when I discovered how locked down the firmware is on this device. No fastboot. No standard Android bootloader. Not even, as far as I could tell, anyway of rebooting into recovery using the hardware buttons.
I could get to the factory reset screen and download mode, but neither have any way to get to recovery. ADB could not connect. The LG support tool found it, but did nothing but tell me the firmware was up to date. Lots of searching and reading turned up similar tales of woe. I began to worry that there was no way out.
Having no other ideas, I tried doing a factory reset. It ran, and lo and behold, kicked me into TWRP. From here, I confirmed that the device was wiped.
However! I had had the foresight to create a TWRP backup on my external sdcard, and that was still there. Restoring it got everything back in working order.
The moral: If you're up and running now, make an external backup. It could save your butt just as it did mine.
Amen
I'd just like to add that you can enable fastboot on this tablet for anyone who might read this thread. If you follow the method described here you'll lose download mode, but the tablet will fall back to fastboot when download mode fails. :good:
Without a kdz file released for the V410 the download mode isn't really good for anything, but fastboot gives you a fighting chance of being able to flash your way out of trouble if you brick your V410. Probably advisable to keep a backup of the laf partition just in case you need it someday.
Aha, thanks, I had seen that referenced several times, but wasn't sure where to go with it, and wanted to try less extreme methods before attempting something like that.
I've been spoiled by modding HTC and Nexus devices up to now, so this is a bit of a culture shock over here.
Edit: Decided to bite the bullet in case of future problems and nuked laf. Ah, sweet fastboot. :highfive:
So everything was working well no issues. The other night I am playing a game and everything seemed a bit wonky the touch screen was erratic and the graphics were stuttering so I figured I hadn't rebooted in a long time may as well. Well now the tablet just boot loops and won't come up. I tried doing a factory reset in recovery that hasn't helped. I hadn't gotten the time to try out the custom recovery so I have no backup is there any way to reload this thing from a computer or do I have a brick?
Little back ground I was rooted but no new software was installed in over 2 weeks prior and even upgrades had been at least a couple of days and then just Google stuff. No issues up till this point it was working very well. I was on Lollipop but would be happy to boot either KitKat or Lollipop at this point.
Little bit ticked off the tablet was only 6 months old never abused/dropped at all. I kept it in a sleeve when I wasn't using it and have a case as well. I don't install suspect programs at all. I use the tablet everyday for both work and personal use so I really need to get it going again if possible.
So I found this program called B2CAppSetup.exe in a post for the lg tablet 8.3 I installed it and put my tablet in download mode. It said that my tablet was up to date and that nothing needed to be done but there was an option to "update recovery" which downloaded a 1gb plus file so I assume it was the whole OS and not just the recovery. Took a while to do the reinstall but it did work, first boot took a few minutes but my tablet is running again. I will have to reset everything up again the way I had it but that is OK I had made a backup of my apps and data about 4 or 5 days before this happened so anything lost will be minimal. Hope this is helpful if this happens to someone else.
jpisini said:
So I found this program called B2CAppSetup.exe in a post for the lg tablet 8.3 I installed it and put my tablet in download mode. It said that my tablet was up to date and that nothing needed to be done but there was an option to "update recovery" which downloaded a 1gb plus file so I assume it was the whole OS and not just the recovery. Took a while to do the reinstall but it did work, first boot took a few minutes but my tablet is running again. I will have to reset everything up again the way I had it but that is OK I had made a backup of my apps and data about 4 or 5 days before this happened so anything lost will be minimal. Hope this is helpful if this happens to someone else.
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Well if I can just find out exactly what I need installed on the computer and how to enter the commands and where to enter them I'd be alright. Its been a long time since I use a computer and I'm stuck in a boot loop for no reason at all except for I rebooted and it is stuck. Can't go past fastboot or recovery or that screen with the big barcode. I did nothing that could affect the operating system and only had some very simple route adjustments made so I don't understand why it is so messed up. But hopefully someone can explain the computer part of this and I'll be straight
Sent from my VS986 using Tapatalk
I have been having issues with my phone random restarting and sometimes it would go through the app optimization process. So I decided to do a full wipe and install CM13. Everything has been great for the past week but, today it did a random restart and went through the optimization process. However, this time it didn't come out of it but, instead looped back to the boot animation and then optimized again and continued to do this. I tried opening recovery to wipe and reinstall but TWRP gets stuck at the splash screen. I have tried reverting to stock but for some reason the LG Flash Tool gets stuck at "Waiting for Connection". I have tried different computers and USB ports to get the Flash Tool to work but have not had any luck. I'm looking for any help or suggestions that people can give. I am willing to try pretty much anything right now.
Resolved! Used LG Sync to Restore Upgrade and revert to stock.
Try the official LG pc suite.
Once connected, just find something like "restore". The program will automatically rewrite the complete storage chip on your phone.
I just got the official update to Marshmallow and I decided to just do it since it is official. It downloaded and then installed. Then it rebooted and showed that "apps are being optimized" screen and after that a bootloop of the lg logo. Rebooting doesnt work only if I take the battery out but afterwards there's still a bootloop. I also didn't do root or anything else to my device. I can not enter download mode or recovery either, but honestly idk if it has worked before.
Can anyone with probably similar experiences help me? Thanks in Advance from Germany
LG G3 D855 16Gb Europe unlocked Marshmallow update boot loop.
PCSE said:
I just got the official update to Marshmallow and I decided to just do it since it is official. It downloaded and then installed. Then it rebooted and showed that "apps are being optimized" screen and after that a bootloop of the lg logo. Rebooting doesnt work only if I take the battery out but afterwards there's still a bootloop. I also didn't do root or anything else to my device. I can not enter download mode or recovery either, but honestly idk if it has worked before.
Can anyone with probably similar experiences help me? Thanks in Advance from Germany
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I have exactly the same issue. I have a German-bought LG G3 d855 updating this morning to Marshmallow. It is now caught in exactly the same boot loop. I get the LG logo, for a few minutes (the brightness changes during this time) followed by the "Android is updating..." app optimization screen which optimizes my 44 apps before going back to the logo in a constant cycle. Then my 44 apps get optimized yet again, and on it goes. I can't enter recovery, none of the button combinations has any effect. Phone has no mods, and was working fine before this.
Does anyone have any ideas?
Hi,
Similar issue here, my phone updated today (also no root, no mods) and for a couple of hours everything worked fine (just some missing apps after the process, but ok), then I went to flight mode and back and then it started with the reboot loops.
The reboots on my phone happen after some seconds in the home screen, so I have time to try to set it in flight mode again, and in some cases, after this it stops rebooting, but in flight mode, with no connections at all.
I'm trying to remove things to avoid doing a factory reset by now, removing cache didn't help...
Is your phone rebooting also after loading the home screen? or it just loops in the LG screen or in the apps update screen?
Hello,
I had the same problem. Just hardware reset the device and the device will continue from optimizing the apps
Instructions on how to hard reset see the video find on youtube "How to Enter into Recovery Mode on LG G3!"
pbasiros said:
Hello,
I had the same problem. Just hardware reset the device and the device will continue from optimizing the apps
Instructions on how to hard reset see the video find on youtube "How to Enter into Recovery Mode on LG G3!"
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Hello,
I got exactly the same problem (LG logo, brithness + and -, and then optimizing apps, then reboot)
I have a G3 european stock version, recently update to marshmallow (3 weeks ago). The pb occur when trying to connect to a open wifi network : suddenly reboot, then stucked in bootloop.
Is there any possbility of doing something using the "download mode" ? I really would like to recover photos in internal memory...
thanks
PCSE said:
I just got the official update to Marshmallow and I decided to just do it since it is official. It downloaded and then installed. Then it rebooted and showed that "apps are being optimized" screen and after that a bootloop of the lg logo. Rebooting doesnt work only if I take the battery out but afterwards there's still a bootloop. I also didn't do root or anything else to my device. I can not enter download mode or recovery either, but honestly idk if it has worked before.
Can anyone with probably similar experiences help me? Thanks in Advance from Germany
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Click to collapse
Hi
I managed to recover my phone, BUT I didn't manage to recover my personnal data... I had to reset everything...
My method : with this tool https://www.google.fr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwi9oJnC66bMAhWHDsAKHY_cBVQQFggdMAA&url=http%3A%2F%2Fforum.xda-developers.com%2Fshowthread.php%3Ft%3D2683691&usg=AFQjCNGG5q9UKA6oKXlahEEOksUo8faGrw&sig2=cTz4bAtdqp4BEut2S4B2GA enter your imei, and download KDZ file, latest directly from LG server.
Then follow this method (in french sorry)
http://www.phonandroid.com/forum/installation-propre-flasher-facilement-un-firmware-officiel-fichier-kdz-lg-g3-t97193.html#p1452621
You can try "normal flash" at the first time, but if it doesn't work (for me it doesn't work) you will have to choose "CSE Flash" and it should work. But you will loose your personnal data. So be strong.
nikoscotch said:
Hi
I managed to recover my phone, BUT I didn't manage to recover my personnal data... I had to reset everything...
My method : with this tool https://www.google.fr/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwi9oJnC66bMAhWHDsAKHY_cBVQQFggdMAA&url=http%3A%2F%2Fforum.xda-developers.com%2Fshowthread.php%3Ft%3D2683691&usg=AFQjCNGG5q9UKA6oKXlahEEOksUo8faGrw&sig2=cTz4bAtdqp4BEut2S4B2GA enter your imei, and download KDZ file, latest directly from LG server.
Then follow this method (in french sorry)
http://www.phonandroid.com/forum/installation-propre-flasher-facilement-un-firmware-officiel-fichier-kdz-lg-g3-t97193.html#p1452621
You can try "normal flash" at the first time, but if it doesn't work (for me it doesn't work) you will have to choose "CSE Flash" and it should work. But you will loose your personnal data. So be strong.
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Click to collapse
Bro Thank You so much ive been searching for solution the last 2 days and you finally saved my life Thank you Man !
i have the same problem....after the stock firmware has been restored,what method is used to get the proper working marshmallow upgrade?
I went from 5.0 to 6.0 using the LG PC Suite.
0 problems, 0 reboots, quick and fast. Did you update through OTA?
yes i did but still boot lop............is it the battery?
so ?
Same problem here, did you find a solution ?
New G3 from LG but back in bootloop after 24h of use.
Thank you.
I got the exact same issue, neither hard reset or flashing firmware works. Is there any other solution or should i start looking for a new phone?
Edit: Somehow it works just fine now lol. Tried flashing it like 3 times and hard reset twice and now after an hour of constant optimizing apps bootlopping i pulled out the battery for like the 100th time and now it works, what the hell. Looks like my G3 will die soon tho haha