Brand new G4 S/N 602 shutting down by itself. - G4 Q&A, Help & Troubleshooting

Just after i got it it started shutting down few times a day, then i unlocked bootloader and flashed Genisys ROM 3.8 and it was working fine without shutting down for two days and now it started again, just went to pick it up and it's OFF. Where did LG go wrong with G4?
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Related

phone reboots when charger unplugged

hi guys
i had been running a custom rom on my d855 16gb lg g3 and running perfectly until i tried
to install a custom kernel ive done this a million times but the phone went into a bootloop i restarted it it eventually
but when it restarts it stays on for about 1 minute then reboots again
any ideas
thanks in advance
nick

LG G4 stuck in a different kind of boot loop.

So I have an, I beleive korean h815, I have been rooted for a couple weeks now, nothing else done to the phone. Today all of the sudden it stays on the LG splash screen. Very occasionally it'll start up and say "android is updating" but then it reboots the splash again. Is there a way I can just wipe everything and start like from factory again? I've tried the factory reset from the power+volume screen, I got to that screen, but it didn't do anything.
correction, it says twn on the box, so i'm guessing it's taiwan.
I found the thread on using LGUP to install kdz's. Went with the 20c kdz. Phone went to restart and it's just sitting on the screen that says LG. No animation or anything. Someone please help.
I had to buy am LG g stylo to get me by. I really want to fix my g4 and return this thing.
Sent from my LG-H631 using Tapatalk
Nickdroid86 said:
So I have an, I beleive korean h815, I have been rooted for a couple weeks now, nothing else done to the phone. Today all of the sudden it stays on the LG splash screen. Very occasionally it'll start up and say "android is updating" but then it reboots the splash again. Is there a way I can just wipe everything and start like from factory again? I've tried the factory reset from the power+volume screen, I got to that screen, but it didn't do anything.
Click to expand...
Click to collapse
Can you tell us your android version? I think i have exactly the same issue which is quite annoying.
Each night i put my phone in the power plug with flight mode ON. In the morning, when i remove the flight mode , the phone restarts and falls into bootloop. Happened 3 times exactly the same way. I went for PCB replacement the previous week and i got a PCB starting with ser. No 601xxx. Today morning when i removed the flight mode i got a bootloop again. I am sure that this is caused by the V20D version that i installed the last days.... LG messed up again...i have a bootloop each week..
Not sure. But this is staying on this screen, it doesn't restart and stay on.
Sent from my LG-H631 using Tapatalk

D855 keeps rebooting even after rom change and LG Flashtool procedure

Hello,
my phone is stuck in reboot loop since yesterday.
I have this phone since 2 years. It was rooted and on fulmics 5.3. Since few weeks i had random reboots, more and more often, since yesterday when it became unusable because of the reboots.
It wasn't in bootloop, but the phone starts, the rom loads, and after some seconds it reboots.
So i changed rom, went on exodus, but the problem remanins. The rom boots, and after 1 or 2 mins it reboots, go in bootloop, then starts and reboots again.
Today i've made the Flashtool procedure to go back on stock, but the problem still remain. The rom booted, changed the language then rebooted again.
Wad can i do now?
Thanks
perhaps to be hardware problems, there are some parts of poor contact caused by repeatedly reboot
its not the problem of rom . its a battery issue
replace battery
Maybe this ^
I'm using phone connected to power and it seems to works!
Thanks!
Buy a new battery

LG G4 H811, crashed and bricked?

Hello to all of you who's reading, I ask for help from all of the skillful and knowledgeable folk in this wonderful community, I have a LG G4 phone that ran on CM.13, everything was running fine up until two days ago, phone just froze for a minute, nothing was responding, it crashed and LG logo came on, attempting to power on, but 10-15 seconds later it goes blank and lights up LG logo again... Now I've tried getting into TWRP but factory data reset msg comes up, after hitting yes and yes screen lingers frozen for another half a minute until LG logo shows up. I can get into download mode and tried flashing a stock image with LG Flash Tool 2014, it looked like it went through successfully but ends up doing the same thing... loops without ceasing. Do any of you have any idea what is going on and how can I get it fixed? Thanks for reading!!

Need Help Bootloop on LG G7

Hello, I have the LG G7 thinq. The Device is on Bootloop but I don’t know why!! It starts again and again. It comes to the Red LG Logo and than It boots again. Please Help
zzman31 said:
Hello, I have the LG G7 thinq. The Device is on Bootloop but I don’t know why!! It starts again and again. It comes to the Red LG Logo and than It boots again. Please Help
Click to expand...
Click to collapse
Please describe what happened prior to this before you start a whole big riot again.
Hello, I have this problem well. It started 8 hours ago. I was using it normally, no root or anything. And suddenly when I take it out of the pocket, it just keeps restarting.
I'd like to recover all my data before hard reset. Any help please?
Couldn't even turn it off, I had to wait until battery died.
Hello, same problem here. 2 hours ago I received a WhatsApp message and suddenly it restarts again and again.
Me too! But after two factory restarts I found the problem I guess.
For me, it occured twice when I started Airplane mode and after that everything went to...
Now I am affraid to start airplane mode again
What ROM and version are you guys??
V10f-EUR-XX
My version is V10k-EUR-XX.
After 2 factory resets it looks like my SIM card is the problem.
Without card the phone starts... But in my old LG G6 the SIM card works well.
I tried it with and without SIM as well, but it behaved the same. Sometimes I got into the system, but it just got stuck right away and bootlooped again.
But weird, because for me its airplane mode, which disables/enables celular, so SIM again.
I got T-Mobile, you?
I got t-mobile, too.
So lets wait for stormeye25, I wonder if he also has t-mob
Airplane mode is working well. Without a SIM ...
I am working with SIM. Only when I switch airplane on it stucks again. First time it was me turning airplane off, second time turning it on. Always with SIM and working celular
I tried without sim. Same problem. Also sometimes it boots up, but freezes after 2 seconds. I have the Europe version
I have same problem and i dont know what to do. Problem start about 5 hours ago (what i know last working time was 2:00AM CET). Itself reboot in boot screen or immediately on screen lock after start. I did factory reset, it work for few minutes and again. Version G710EM DEC (germany open market) last FW
It's something from lg ?
Update gone wrong maybe
Exact same problem on my G7 Thinq. Started about 8 hours ago. Boot loop, managed to get it in factory reset mode. Did nothing. Managed to reset it again (without the SIM in) then it booted. After reset it does not recognize (any) SIM. Called Tmobile to ask some questions about repair-process, they told me I was the 3th today with this problem. At this point I wish I wrote down my Google's 2FA recover keys :'). Can't access anything at the moment.
Same bootloop here, g7 thinq bought in Hungary Unlocked, but it downloaded the local t-mobile branding.
It was untouched on charger. When I wanted to pick it up it was already bootlooping and hot.
Put it into freezer, it booted, wallpaper lockscreen arrived, but nothing more.. it was stuck and started bootlooping again after like 30 secs.
Any info / resolution you have?
Okay so it happened again for me with not changing airplane mode or anything. Now I will try without SIM card. I will try to get into touch with our corporate t-mobile associate... Can we pinpoint if its t-mob (SIM) or something to do with LG?
Same here, G7 bought through TMobile Netherlands. I had turned it on airplane mode before going to bed, and when I tried to put airplane mode off it got stuck.
I'm waiting for the battery to die so I can try to wipe the cache...
Flash back to V10F did not help. More accurately until I insert sim (T-mobile) it looks like it works, after inserting sim freezes and resumes bootloop
Okay, out of the blue when in my pocket I noticed my phone was very hot and appeared, also without warning, stuck in a boot loop. Also on T-mobile...I had no problems before.
***Edit*** For the record I run a stock phone/firmware that I have never tempered with...

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