G4 bootloop oř different problem - G4 Q&A, Help & Troubleshooting

I am on holiday in carribean, I turned my G4 off to insert local SIM card,but it doesnt start since then...It shows LG logo for some time, then white screen with android logo appears with text Android is starting, percentage goes very slowly to 100% and then it reboots again...
I can start TWRP, So I tried to download No big cores kernel (from Kesseras for v29a rom) and install it, but the problem still persists. ..
Do you have any idea what could I do to have my phone at least in partly usable state? I am a bit lost without it while traveling..
I have v29a stock ROM installed with Kesseras 1.7 no big cores kernel now and I dont have access to any PC here....

lapist said:
I am on holiday in carribean, I turned my G4 off to insert local SIM card,but it doesnt start since then...It shows LG logo for some time, then white screen with android logo appears with text Android is starting, percentage goes very slowly to 100% and then it reboots again...
I can start TWRP, So I tried to download No big cores kernel (from Kesseras for v29a rom) and install it, but the problem still persists. ..
Do you have any idea what could I do to have my phone at least in partly usable state? I am a bit lost without it while traveling..
I have v29a stock ROM installed with Kesseras 1.7 no big cores kernel now and I dont have access to any PC here....
Click to expand...
Click to collapse
Well I would make a TWRP backup and than try to wipe the data in recovery. If it does not help you can try to flash freedomrom and see if it works.

Related

Help!!! Can't boot into recovery

Help, i installed the twrp recovery and went about installing a rom but when i went to wipe the phone i wiped everything. So now when i try to boot into recovery it just shows the lg logo with the l.e.d cycling. No idea what to do please help.
Can you get into download mode, If so you can flash the stock .kdz for your device with the lg flash tool and you will a stock functioning phone agin. Then you can root and install TWRP again if you would like just like you did the first time. But make SURE that you use CORRECT kdz for your device model remove the batteries and under you should she something like this eith the X being numbers or letters: LG-XXXXX find the .kdz for the XXXXX value and flash it with the lg flash tool
Thanks alot, its working but its taking its time still only at 14%
Your welcome if you still need help just ask
G3 boots into firmware update only
I recently updated my lg G3 ( Google patch update named Aug-18-2015 etc) and it started to malfunction with resets, crashing and eventually got it stuck in boot loop. Then it booted into a green screen that said "demigod crash handler/tz crash" thrice. Instead of a hard reset I decided to using the lg mobile support tool to fix it. During the upgrade recovery my phone went into download mode/firmware update. I could see the progress bar moving and then get stuck and my mobile would switch off. Took out the battery, disconnected and reconnected the phone and tried the process all over again but in vain. I repeated this at least 8 times and eventually gave up. Now my phone is basically useless and only boots into firmware update. Hard reset doesn't work either. Can somebody please help me fix this?
Android version : 5.0
Kernel: 3.4.0
Firmware : v20t-ame-xx
Go to the site: http://lgg3root.com/lg-g3-root/how-to-unrootunbrick-lg-g3/ and search for your device and message me back if it works
red bleud led flash
after i installed twrp latest edition it won't boot into it and it gives me the red and blue led flash even trough the steps by suing the download mode it won't work
HELP PLEASE
Best regards
Exray_NL

DemiGod Crash Handler: Kernel Crash

I recently discovered the possibility of flashing custom rome to my LG G3. I flashed Resurrection Remix(5.1.1), and was told that Liquid smooth(5.0.1) has better battery life. I proceeded to download the rom (I didn't download Gapps because i already had Gapps from resurrection remix) to my SD card. I charged my phone up to 100%, booted to custom recovery( TWRP), backed up every thing, wiped(factory reset), and flashed the rom. Up until here everything went fine. When I was going to flash the Gapps I saw that they are for android 5.1 and decided I would skip that and continue to install them after I boot and download the correct files.
I proceeded to boot into system, I saw the LG boot logo, the liquid smooth boot animation started, and then I got this screen:
--------------------------------------------------------------------
Kernel Crash
--------------------------------------------------------------------
DemiGod Crash Handler : Kernel Crash
Press Key to chose Dload or Reboot.
1) Volume Up : Dload Mode.
2) Volume Down : Reboot.
If you choose Dload Mode,
Please do the following action,
1) Dload mode, Please connect USB
2) Got the ram dump image using QPST Configuration.
--------------------------------------------------------------------
Board Info
rev. : 1.0 speed,pvs : 3.0 serial 0d3823132d08e09a
--------------------------------------------------------------------
Kernel Panic - not syncing: Out of memory and no killable processes...
When I try to reboot by pressing volume down it reboots in the same way back to this screen, when I try download mode(although i have no idea what I can do with it) it says "Volume Up: Jumping to Dload mode.
Please help me, I have no idea what to do and am not familiar with logs and .kdz and such...
I appreciate all the help I can get, thanks
I have a LG G3 D855 16Gb|2Gb
bmyonatan said:
I recently discovered the possibility of flashing custom rome to my LG G3. I flashed Resurrection Remix(5.1.1), and was told that Liquid smooth(5.0.1) has better battery life. I proceeded to download the rom (I didn't download Gapps because i already had Gapps from resurrection remix) to my SD card. I charged my phone up to 100%, booted to custom recovery( TWRP), backed up every thing, wiped(factory reset), and flashed the rom. Up until here everything went fine. When I was going to flash the Gapps I saw that they are for android 5.1 and decided I would skip that and continue to install them after I boot and download the correct files.
I proceeded to boot into system, I saw the LG boot logo, the liquid smooth boot animation started, and then I got this screen:
--------------------------------------------------------------------
Kernel Crash
--------------------------------------------------------------------
DemiGod Crash Handler : Kernel Crash
Press Key to chose Dload or Reboot.
1) Volume Up : Dload Mode.
2) Volume Down : Reboot.
If you choose Dload Mode,
Please do the following action,
1) Dload mode, Please connect USB
2) Got the ram dump image using QPST Configuration.
--------------------------------------------------------------------
Board Info
rev. : 1.0 speed,pvs : 3.0 serial 0d3823132d08e09a
--------------------------------------------------------------------
Kernel Panic - not syncing: Out of memory and no killable processes...
When I try to reboot by pressing volume down it reboots in the same way back to this screen, when I try download mode(although i have no idea what I can do with it) it says "Volume Up: Jumping to Dload mode.
Please help me, I have no idea what to do and am not familiar with logs and .kdz and such...
I appreciate all the help I can get, thanks
I have a LG G3 D855 16Gb|2Gb
Click to expand...
Click to collapse
On this page(http://forum.xda-developers.com/lg-g3/development/rom-liquidsmooth-v4-0-t2955089) the OP states:"Some users Report that the normal variant also give kernel crash to 2GB RAM models. So make sure to make backup before flashing, i try to fix, but i can just blind fix because i own the 3GB RAM model." Since you have the 2gb model you seem to have this issue. I guess read through the thread and see if there is a fix available...or maybe try a different d855 kernel? (I have a vs985 so I can't give any info/advice on that)
Or just use a different ROM. LS hasn't been updated in a while...unfortunately...I kinda miss it.
startswithPendswithOOH said:
On this page(http://forum.xda-developers.com/lg-g3/development/rom-liquidsmooth-v4-0-t2955089) the OP states:"Some users Report that the normal variant also give kernel crash to 2GB RAM models. So make sure to make backup before flashing, i try to fix, but i can just blind fix because i own the 3GB RAM model." Since you have the 2gb model you seem to have this issue. I guess read through the thread and see if there is a fix available...or maybe try a different d855 kernel? (I have a vs985 so I can't give any info/advice on that)
Or just use a different ROM. LS hasn't been updated in a while...unfortunately...I kinda miss it.
Click to expand...
Click to collapse
After a full day of reading tutorials on the internet and playing with the buttons on my Phone (to enter any mode).. I was finally able to enter recovery.
I pressed volume down to reboot, and then while the screen was black I pressed the power button and the volume down together, and as soon as I saw the LG logo I released the buttons and immediately pressed them again. After that I got into an LG screen (might be download mode?), that asked if I want to restore back to stock, I said no and then it rebooted into recovery, from there I flashed resurrection remix again and my phone booted normally.
Hi! I had the same problem with my LG G3 (Sprint LS990/3GB). I took it in to Sprint repair because it would not boot and when I came back they showed me this error on the screen then told me that it is rooted I would have to call a third party repair place. I could have swron I unrooted the thing but anyways. Problem is when I tryed to reboot it to go into dl mode the phone will not stay on for more than 20 secs, making it impossible to recover it. Has anyone else had this problem?
When i was on blisspop i had same problem so i flashed cm12 but the problem was not fixed but after flashing cloudyg3 everything works fine also on blisspop, now its 7-8month never had kernel crash again, So basically flash any stock based rom. But it will be more better if u flash kdz or tot from lg flash tool.
Kashif Hashmi said:
When i was on blisspop i had same problem so i flashed cm12 but the problem was not fixed but after flashing cloudyg3 everything works fine also on blisspop, now its 7-8month never had kernel crash again, So basically flash any stock based rom. But it will be more better if u flash kdz or tot from lg flash tool.
Click to expand...
Click to collapse
When this kernel crash occurs, it can not boot to Download Mode or recovery mode. How can you flash to Cloudyg3 without recovery mode??
Tekone said:
When this kernel crash occurs, it can not boot to Download Mode or recovery mode. How can you flash to Cloudyg3 without recovery mode??
Click to expand...
Click to collapse
Just remove the battery & then put it back then goto recovery mode or download mode.
Kashif Hashmi said:
Just remove the battery & then put it back then goto recovery mode or download mode.
Click to expand...
Click to collapse
It didn't apply on me.. I have remove the battery million time and left the battery off over night. It keep boot in Kernel Crash mode. On the Kernel Crash mode, it has a option to enter the Dload mode by press the up volume key. It keep hang in Kernel Crash mode, after i pressed. Any another suggestion or anyone ?
Maybe I should consider hard bricked and using qhusb 9008 fix
Fix for me: Remove battery and put back, power on (several times) --> then the green screen gone away - now i can use the phone normally.
My situation:
- LG G3 D855 (international)
- Error: restart constantly
- Then I install another stock os wih Europe version
- Then it run well (4-5 hours) before getting the green screen
- ... (search in forum and google)
- Finally I foud that way to fix it.
That's all for the end
bskienhvqy said:
Fix for me: Remove battery and put back, power on (several times) --> then the green screen gone away - now i can use the phone normally.
My situation:
- LG G3 D855 (international)
- Error: restart constantly
- Then I install another stock os wih Europe version
- Then it run well (4-5 hours) before getting the green screen
- ... (search in forum and google)
- Finally I foud that way to fix it.
That's all for the end
Click to expand...
Click to collapse
which way???
antaramir79 said:
which way???
Click to expand...
Click to collapse
Repeating this and get a lucky chance
I need you Help My Message is:
-------------------------------------------------------------------
TZ Crash!
--------------------------------------------------------------------
DemiGod Crash Handler : Kernel Crash
If you choose Dload Mode,
Please do the following action,
1) Dload mode, Please connect USB
2) Get the ram dump image using QPST Configuration.
--------------------------------------------------------------------
Board Info
rev. : 1.0 speed,pvs : 3,8 serial 0d192149a51aa0b5
--------------------------------------------------------------------
Jump to Dload Mode.
Don´t show me:
"Press Key to chose Dload or Reboot.
1) Volume Up : Dload Mode.
2) Volume Down : Reboot."
sometimes not appear the screen green only appear LG screen and power down. Please tell me what is the combinations keys.
Regards
I really think this is a hardware related problem. Some success with all of these various methods, but even if it boots to a workable android, eventually it freezes. There are no real solutions, but to open the phone, and find the offending parts. Maybe some heatsink grease( there was always a lot of heat by the buttons, and camera module). Best thing that's happened, is it stayed on, til I turned it off, then it was back to the demigod when I turned it back on again. Seems like it's a problem with all LG phones.
tz crash in my lg g3 d855
r.moral said:
Hi! I had the same problem with my LG G3 (Sprint LS990/3GB). I took it in to Sprint repair because it would not boot and when I came back they showed me this error on the screen then told me that it is rooted I would have to call a third party repair place. I could have swron I unrooted the thing but anyways. Problem is when I tryed to reboot it to go into dl mode the phone will not stay on for more than 20 secs, making it impossible to recover it. Has anyone else had this problem?
Click to expand...
Click to collapse
I had this problem today morning wen i was watching video . Suddenly got tz crash n i cant do anything . Same like you r.moral ...u got any solution for this ? I own lg g3 d855 32gb
Lg g3 Demigood crash , kernel crash SOLVED
I had this problem two months ago , it was began with memory card default , randomly ejecting the memory card then i bought a new sd card slot and did repair in a local shop . it was on Marshalmow 6 custom rom . After two days of the sim card reparation i got demigood crash default screen and phone was rebooting and freezing very often .Phone was getting very hot at back side and top of on the screen . I have searched every forums on the internet about this problem but no way .
Then one morning i decided to flash it with lg flash tool a stock rom kit kat 4.4.2 EU10o .kdz .
At first sight every thing was working good i tought that it is now ok but i was wrong because every time that i turn the wifi on and sycronising is running the phone begins to reboot or frezee and crash .
I realised that something wrong with wifi . After a succesfuly boot when configuration is fnished
# i turned off wifi
# i turned off gps location
# i turned off nfc
# i turned offf sync
# i disabled all automatic update
# i disapled google play automatic update
# i used a new orginal lg battery
# i used orginal usb charge cable
Thanks to god since this morning no crash no problem all working like a charm ; 0) except all type off update or sync or google play sync are disabled
Lg g3 D855 europe 16gb kit kat 4.4.2 v10o.kdz
if the phone doenst boot or crash live it over night without battery or 5 minutes in the refrigerator then it boots or go to download mod succesfuly.
Stay away from marshalmow 6.0 custom brick all devices
bskienhvqy said:
Fix for me: Remove battery and put back, power on (several times) --> then the green screen gone away - now i can use the phone normally.
My situation:
- LG G3 D855 (international)
- Error: restart constantly
- Then I install another stock os wih Europe version
- Then it run well (4-5 hours) before getting the green screen
- ... (search in forum and google)
- Finally I foud that way to fix it.
That's all for the end
Click to expand...
Click to collapse
hi... can you pls tell how you fix it?
r.moral said:
Hi! I had the same problem with my LG G3 (Sprint LS990/3GB). I took it in to Sprint repair because it would not boot and when I came back they showed me this error on the screen then told me that it is rooted I would have to call a third party repair place. I could have swron I unrooted the thing but anyways. Problem is when I tryed to reboot it to go into dl mode the phone will not stay on for more than 20 secs, making it impossible to recover it. Has anyone else had this problem?
Click to expand...
Click to collapse
Yes I have this problem with my LG G3 now. Looking for a fix. Wont stay in download mode long enough to do anything.
I had this too (with AT&T D850). I tried a lot of stuff. Putting the phone in the freezer for a few min and directly afterwards flashing actually allowed me to successfully flash stock via download mode but it would go back to crashing shortly after that. Ultimately I could not solve it, apparently it was a hardware issue.

My G3 is close to death ?

Hi
First of all, sorry for my english, it's not my native language
So, I have a problem since yesterday. I was on Fulmics 5.0 since one month but now my phone shutdown by himself and won't reboot or bootloop, i must try a lot of time and it reboot
I thought it was due to my ROM so i updated it from 5.0 to 5.1 with a clean installation (full wipe) but the problem is here, again ...
Furthermore, my SIM card isn't detected everytime. Sometimes, I need to reboot my phone because on first boot, it doesn't ask me for my PIN code
What can i do ?
I have a save of an old rom (made in octobre 2015) but it was on 5.0 (and now my phone is on 6.0), can i restore it to try ?
Thanks
Instead of flashing your backup, I would suggest you to flash the official .kdz ( L or MM )
And for bootloops, It can be your battery ( the same was happennig on my old Nexus 5 )
To be sure that's it your battery fault, try to get the phone down to 10%
If it bootloops, try to boot with charge plugged and if it boots, it means it's battery fault
It's not my battery, it's the software
I've just restored my backup (october 2015) and my phone is working well (for the moment)
I will download the .kdz for MM and i'll stay on official i think because i always have some problems with non-stock ROM
Problem is here again i think ...
SIM isn't always detected
But it's not the battery because i have the problem of shutdown/bootloop even when my phone is plugged
EDIT: problem is still here with a backup ... I don't know what to do...
Well maybe the battery is a problem too ... Now the phone bootloop and i need to plug it then it's ok (but sometimes it will boot without being plugged so ...)
But my battery is full ...
The phone is still in warranty, i will use it on tuesday (in france, tomorrow is "holidays" ), I hope they will repair it, if they can't ... I'll go to an other phone, S7 looks great

bootloop stuck d855

hello everyone ,
i need your help
i use Fulmics rom from last year but few days ago i texting from the phone . my phone sudden of then i start the phone again but it stuck on the bootloop then i try to reinstall the fulmics rom again but the problem was same. then i flash my phone with kdz method by using flash tools the phone flash show 100% but on pc its stuck on 99% then it shows error of stop working. in these all processes i also lost recovery mode when i try to go in recovery it never shows to me . pls tell me what should i do ?
one more thing i flash with another version of kdz it install and bootloop vanished but the version not supported with my device many things not working what the main reason ?
anyone?
I did not get what you said.
Explain it again with more details.
Erfan_rv said:
I did not get what you said.
Explain it again with more details.
Click to expand...
Click to collapse
i use Fulmics ROM 6.9 from last year but few days ago while texting my phone shutdown automatically then i restart the phone again but it stuck with boot-loop i try to reinstall the rom from recovery after installation the result was same. then i flash my phone with kdz global file my phone still on boot loop then i try to get back on recovery mode TWRP was automatically removed when i flashed the phone.
when i install another version of kdz file it work fine but not supported to my device but there m not facing any bootloop so what can i do now?
What do you mean not supported by my device?
Erfan_rv said:
What do you mean not supported by my device?
Click to expand...
Click to collapse
another version of kdz file which i was installed

H815, stuck on logo LG, after Hard reset Green screen...

Hi
I have a problem with my H815. In one moment i recognized that my LG G4 shows only LG boot logo.
I will make a hard reset. I have unlocked bootloader and imperium rom and kernel. After hard reset it
shows twrp recovery for a while and then stuck and then only green screen with text (on top - unknown reset)
And now it shows this green screen after a hardreset or during the second half of the hard reset.
Is there any way to try to repair it by myself?
Thanks Ondrej
gropa said:
Hi
I have a problem with my H815. In one moment i recognized that my LG G4 shows only LG boot logo.
I will make a hard reset. I have unlocked bootloader and imperium rom and kernel. After hard reset it
shows twrp recovery for a while and then stuck and then only green screen with text (on top - unknown reset)
And now it shows this green screen after a hardreset or during the second half of the hard reset.
Is there any way to try to repair it by myself?
Thanks Ondrej
Click to expand...
Click to collapse
Best bet would be to start over fresh reinstall firmware with lgup or flashtool and go from there
i cant instal firmware with lgup or flashtool. They didnt recognized the phone. The G4 didnt connect to the PC. Any other suggestions? O
Did you find the solution for this?
I have similar problem now.
I can get into fastboot mode, sometimes into download mode (but can't flash kdz) and TWRP. The problem in TWRP manifests when I try to flash new ROM (or whatever .zip file). I put it in freezer for couple of hours and successfully installed ROM while the phone was cold but didn't manage to boot into it.
Any suggestions?
Bullet92 said:
Did you find the solution for this?
I have similar problem now.
I can get into fastboot mode, sometimes into download mode (but can't flash kdz) and TWRP. The problem in TWRP manifests when I try to flash new ROM (or whatever .zip file). I put it in freezer for couple of hours and successfully installed ROM while the phone was cold but didn't manage to boot into it.
Any suggestions?
Click to expand...
Click to collapse
Check my signature for the bootloop fixit list.
Sent from my LG-H815 using XDA Labs

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