LG G3 freezing and restarting, staying in boot loop sometimes - G3 Q&A, Help & Troubleshooting

Hello,
Since 2 weeks ago my phone has been started acting all weird. It started with my Phone freezing and restarting itself one morning. It showed the LG logo for a few seconds, then went black and the same thing repeated. LED did not start blinking at first but after a few loops the LED came on, the animation played and phone turned on nicely. No more such problems during the rest of the day.
Fast forward 2 days. It got worse. The freezing and restarting happened more often and at one point it was in the LG logo -> black screen -> LG logo loop for a good 10 minutes before it booted. It also drains my battery about 10% every single time.
So I decided to do a Hard Reset when I managed to keep the phone running long enough. The hard reset process itself worked flawlessly, no issues during the reset what so ever. I though the problem was over until a few minutes after the hard reset when I was reinstalling my apps, it froze and restarted again.
I started googling about the issue and found a few matches. Some people suggested replacing the battery and some suggested putting a piece of paper between the battery and the SIM card slot from which I did the latter. That actually worked for a few days until the reboots came back and it got worse by the day when it finally was completely unusable since it kept restarting after booting up (usually it didn't even get to that point). Then I decided to try a new battery because it was the cheapest option available at that moment.
At first all looked good on a new battery but still, just a few minutes after rebooting the phone from a new battery it froze yet again and restarted itself. So 25€ wasted on nothing.
At this point I'm starting to run out of options and really would not like to buy a new phone since my G3 is only two years old (warranty just ended in October 2016).
Any suggestions are more than welcome at this point.
Best regards,
Taavi

Yesterday I tried flashing the stock V30B marshmallow ROM onto the phone using LG flash tool 2014. It lasted without restarts for about an hour and then it all started again.
So in conclusion:
A) It's not the battery.
B) It's not the software.
C) Thus it must be the hardware.
Since my warranty is void already, the repair costs would probably be quite large.
I think the only chance left for me is to suck it up and buy a new phone.
It was fun while it lasted though. RIP.

Funny thing is that after I removed my SIM card, the issues have stopped for ~24 hours. Yesterday I was able to browse reddit and watch videos for almost 2 hours straight with no issue when I had no SIM card in the phone. I will try inserting the SIM card again after I have fully recharged it to see if maybe it has something to do with the SIM card connection.

Put in the SIM card and it didn't even last 24 hours before restarting. Took it out again. Unfortunately it now restarted even without the SIM card so it still must be some hardware failure.

Same issue here. Changed battery, factory reset, rooted and TWRP+CyanogenMod 14.1 flashed and SU granted.
Constant reboots. Sometimes bootlooped until I remove battery

Having the same problem. Tried new battery but it turned out to be a cheap clone that was worse than old battery. Got another from mbuynow which last longer but still restarts but not that often. Tried the paper trick to to avail. Also tried the LG suite to see if it helped but no luck. Running marshmallow 6.0 and have done a full reinstall. Is this likely to be hardware problem?

Eggstones said:
Having the same problem. Tried new battery but it turned out to be a cheap clone that was worse than old battery. Got another from mbuynow which last longer but still restarts but not that often. Tried the paper trick to to avail. Also tried the LG suite to see if it helped but no luck. Running marshmallow 6.0 and have done a full reinstall. Is this likely to be hardware problem?
Click to expand...
Click to collapse
Cannot tell for sure but seems it is a hardware problem which is really sad since besides the restarts the phone is still in very good shape. I would take it to repairs but as my warranty is already void it would make sense to simply buy a new phone and sell the current one to parts.

I have the same problem... I flashed CRDroid or something with Android 7.0, it booted normally, but then, restart after few minutes... It can boot normally with the usb to computer, but not with charger. It can also boot to twrp, wipe, install and fix the system works, installing other roms works too, and they can boot normally, but it shut down, as soon I remove the cable... I thought it was nougat rom, it change some in system files or drivers like battery options... I'm out of options...

beeduq said:
I have the same problem... I flashed CRDroid or something with Android 7.0, it booted normally, but then, restart after few minutes... It can boot normally with the usb to computer, but not with charger. It can also boot to twrp, wipe, install and fix the system works, installing other roms works too, and they can boot normally, but it shut down, as soon I remove the cable... I thought it was nougat rom, it change some in system files or drivers like battery options... I'm out of options...
Click to expand...
Click to collapse
Seems like a battery issue I think you need a new battery if it's working without the wire plugged in
Sent from my LG-D852 using Tapatalk

I have 2 phones. This thing seems to puff exactly after 2 years coz they were bought in difrent times and both of them emerge this issue after 2 years for each. boootlops were after few minutes from start. In case of first one new battery was a bingo but i did not investigate second - im going maybe for new phone. Funny thing. Maybe product life time was to planned to good(for producer)?

I was a great phone, longest I have and most customised... Very agile, never had bricked, bootlooped or failed to flash... Thank you for your great support, LG G3.... Rest in Peace... If someone can bring it back to life, I'll be back to that.

I'm counting on someone stumbling on a fix as well. It's still an awesome phone expect for this stupid thing.

I had similar issues but I realized that different SIMs seemed to work with the phone. Went to my carrier and requested a new one. Since then, no issues. Maybe something with the sim card slot?

amd-dude said:
I had similar issues but I realized that different SIMs seemed to work with the phone. Went to my carrier and requested a new one. Since then, no issues. Maybe something with the sim card slot?
Click to expand...
Click to collapse
It happens even when my SIM card is not in the phone. It could easily be the SIM card tray but cannot confirm without taking it to repairs.

Did you try disabling Location?
(I had random reboots when the battery went to 25% and when i disabled Location services,it got fixed)

Sotiris02 said:
Did you try disabling Location?
(I had random reboots when the battery went to 25% and when i disabled Location services,it got fixed)
Click to expand...
Click to collapse
One of the hard resets I did was from full charge and I didn't enable anything, including location. It still went into the reboot loop.

xenover said:
One of the hard resets I did was from full charge and I didn't enable anything, including location. It still went into the reboot loop.
Click to expand...
Click to collapse
It might be a hardware problem in some LG G3 phones.
It began rebooting and bootlooping after 2 days,that i had disabled the location services.
Now i'm thinking of getting a new battery but i don't really think it will do any effect..
So i might buy a new phone..

beeduq said:
I was a great phone, longest I have and most customised... Very agile, never had bricked, bootlooped or failed to flash... Thank you for your great support, LG G3.... Rest in Peace... If someone can bring it back to life, I'll be back to that.
Click to expand...
Click to collapse
hi men i think i have the same probleme i flash my phone with nougat rom after same probleme in battery im back in 6.0.1 ROM and after 3 day the phone turn off and star reboot same time he boot normaly for 5 min and rebooot again wath is the solution please ?? i flash it with differnet rom no news ...( sorry for my broken english )

noussair78125 said:
hi men i think i have the same probleme i flash my phone with nougat rom after same probleme in battery im back in 6.0.1 ROM and after 3 day the phone turn off and star reboot same time he boot normaly for 5 min and rebooot again wath is the solution please ?? i flash it with differnet rom no news ...( sorry for my broken english )
Click to expand...
Click to collapse
I had the same problem as you,i bought a new battery and everything got fixed.(you need exact the same Model of battery so when you go to a store note the model of the battery)

Temporary Fix
1- Remove the SIM, turn on the phone, put it in Airplane Mode.
2-Insert the SIM turn on the phone.(Don't change Air mode).
3- Turn off auto backup/restore in settings.
4-Go to network setting>Preferred network Type.
5-Turn Off the Airplane Mode and immediately SELECT THE 3G only(Before it catches the signals), in some phones WCDMA only.(Do not Select 4G/LTE/2G).
6-Done
7-Restart the phone.(Now it will not reboot)
Drawbacks:
In 2G signal zone, There will be no signals.
Its a hardware problem,But its a way to trick it.
-

Related

Artemis crashes - battery problem?

Hi,
My Artemis is running Meschle's Touch 4.02 WWE for a long time now.
A couple of months ago it started to crash, apparently randomly. It started after I installed auto-hibernate, but this could be a coincidence.
What happens most of the time is that the screen is turning black (fades away), starting from the bottom. Sometimes it just gets stuck on the home or other window or it soft resets automatically. I also got twice a white screen that said: 'reset due to sudden power loss'. Soft resets sometimes work, sometimes it gets stuck on the boot screen. I did several hard-resets with no luck.
I am trying for a long time to figure out a pattern. Maybe it has to do with the radio consuming too much power? Upgraded to 03.21.90: same problem.
Last two crashes happened while trying to start Opera mini.
After a crash the clock is wrong (the time of the crash the clock stopped).
It seems to happen more often while charging.
I've changed the battery: it seemed to be better for a while (two weeks) but then it started again.
I've disabled everything, leaving only the phone (no data, no HTC home, ....) but still the phone crashes from time to time (sometimes every hour, sometimes every 5 mins, .....).
Battery status indicates some weird things too: after charging up to i.e. 35% then soft reset batt status indicated 58%...or batt status is 30% then 2 mins later status is 2%. The OMAP function is turned off, because sometimes while booting the cpu is stuck on a very low frequency (screen flickering, very slow boot, ...).
I've tried to flash with another rom (original HTC) but I get: 'update utility not for this device' or something similar. I've tried several RUU's en always USPL.
Does any of this make sense to anyone? Any suggestions? Thanks in advance.
I have exactly the same problem. Think solved from 2 days. Changed the SD card i have 2 one 2 gigs and one 1 gigs the problem was with the 2 gigs card. Try to backup your data and format the card.
bobybravo said:
I have exactly the same problem. Think solved from 2 days. Changed the SD card i have 2 one 2 gigs and one 1 gigs the problem was with the 2 gigs card. Try to backup your data and format the card.
Click to expand...
Click to collapse
Thx, I'll try that. However, even when the sd card is removed the crashes occur.
Just had another crash....connected via usb to my pc: after 5 secs screen faded to black. I had to soft reset. After that some 'invisible window' was blocking the start menu. Closed it (via the close button top right) and got the start menu again. Re-connected to usb and is ok until now....
I also see 173mA of drain.
I had the same problem.............and i change back to the original swedish wm6 rom and it was better for a couple of days, then got worse started to freze fade out until one day it "died" now i can only get into bootloader but cant boot any roms not the original swedish rom (wm6) or any other rom, in boot loader it only says IPL 3.13.0001 SPL 3.13.0001 no gsm or other stuff but when conected to USB it says usb, I tried the SD flash to but no good so my sugestion it that u see to that ur device is "open spl" if it take the same route that mine did.
(i change to a brand new battery when the problem where starting but taht didnt help.....)
I guess now as i understand it my only hope is to find the original shiped rom wm 5 swedish rom?! and try if that will flash onto my device.
i hope u dont get the same problem as me.
Only problems, no solutions...
Mine (p3300; Black&Blue v5) got a new Battery, new SD-Card. Did´nt help. I removed the SD, removed SIM, loaded the battery, then turned it on again and from now on it´s sometimes booting, sometimes not. If it´s booted up (after long time lying with removed battery) it doesn´t live long enough to flash it with another (old) rom.
Now it´s lying next to me, with all this expensive accesoires, doesn´t talk to me and say what the problem is. My Provider called me and asked if I want a new one.
Again HTC? I love the functions of WM...
I have the same problem with my Dopod M700 (Love)
But mine doesn't freeze it just auto soft reset itself... i don't know whats going on... somebody please help.
Changing to different ROM doesn't solve the problems... put back the original factory ROM also doesn't help.
Here still the same problem.
I've upgraded the radio to 03.21.90: now WIFI isn't working anymore and the phone still 'crashes'. I'll change it to 03.18.90 and see what happens.
I've emptied the battery several times (until bootloader switches off) and recharged with the original AC adapter. Did a hard reset on battery 100%: problem remains.
There are several threads with the same problem. I didn't find an answer, exept maybe to replace the motherboard.
I really wonder if there's anyone who knows what is causing the problem.
It could be the graphics card (screen fading) or the battery/charge chip...no idea.
I've also noticed that when a crash occurs, it often takes some time until it boots again, as if the Artemis needs to 'cool down'.
System Crash
PeteNewt said:
Hi,
My Artemis is running Meschle's Touch 4.02 WWE for a long time now.
A couple of months ago it started to crash, apparently randomly. It started after I installed auto-hibernate, but this could be a coincidence.
What happens most of the time is that the screen is turning black (fades away), starting from the bottom. Sometimes it just gets stuck on the home or other window or it soft resets automatically. I also got twice a white screen that said: 'reset due to sudden power loss'. Soft resets sometimes work, sometimes it gets stuck on the boot screen. I did several hard-resets with no luck.
I am trying for a long time to figure out a pattern. Maybe it has to do with the radio consuming too much power? Upgraded to 03.21.90: same problem.
Last two crashes happened while trying to start Opera mini.
After a crash the clock is wrong (the time of the crash the clock stopped).
It seems to happen more often while charging.
I've changed the battery: it seemed to be better for a while (two weeks) but then it started again.
I've disabled everything, leaving only the phone (no data, no HTC home, ....) but still the phone crashes from time to time (sometimes every hour, sometimes every 5 mins, .....).
Battery status indicates some weird things too: after charging up to i.e. 35% then soft reset batt status indicated 58%...or batt status is 30% then 2 mins later status is 2%. The OMAP function is turned off, because sometimes while booting the cpu is stuck on a very low frequency (screen flickering, very slow boot, ...).
I've tried to flash with another rom (original HTC) but I get: 'update utility not for this device' or something similar. I've tried several RUU's en always USPL.
Does any of this make sense to anyone? Any suggestions? Thanks in advance.
Click to expand...
Click to collapse
I'm having exactly the same problem which happened after I upgrade from Artemis love 32 to 33.
I have tried everything mentioned here, changed th Rom 5 times, went back to the Ship Rom, but the system keep on crashing.This is the second time this is happening to my Artemis. The solution at the first time was replacing the motherboard and nothing else, as it has worked fine after that.
I posted my problem in another thread here but no solution yet. Four days back and after I got enough with it, I took my Artemis to the HTC work shop and they told me that they couldn't find the reason for the crash, and the only way to solve the problem is to replace the motherboard which will cost me too much.
Strange it happens to several phones, and more or less in the same way.
I've changed my Rom to B&B 5.0 now. Still same problem.
Wifi isn't working at all anymore: tried several radio versions, none brings back the wifi. Is this the end of my Artemis?
Me 2
Jup it happened to mine too, I returned it to the shop and when they returned it they said that they had replaced something but they couldn't tell me what It worked for a couple of months but now the same problem so it's back at the shop again... (luckily i had 2 years of warranty) So i guess it's not really a software problem.
Maart84 said:
Jup it happened to mine too, I returned it to the shop and when they returned it they said that they had replaced something but they couldn't tell me what It worked for a couple of months but now the same problem so it's back at the shop again... (luckily i had 2 years of warranty) So i guess it's not really a software problem.
Click to expand...
Click to collapse
I hope u really try to get them to awnser what they change this time and then u can tell us? who knows it might help to know that.
So...installed B&B 5.0 (thx Tom ).
I did several complete 'battery charging cycles'.
I formatted my SDHC card.
It seems to me that it crashes less now (only once yesterday, not yet today).
Wifi seems to be definitly gone.
It probably isn't SW-related, but why would it crash less now than before?
I think that the most probable cause would be the chip that handles the battery status.
Let's hope that the chip somehow got resetted with the charging cycles.
No luck....it crashed all the time yesterday.
It seems that it happens more often when it is in my pocket (temperature related?).
When it lies on the cupboard it seems that it stays ok...again very strange.
Also while charging the battery status was 48%. I removed the charger and the status jumped to 100% :s.
Does anyone know how much it costs to have the MB replaced?
MDA Compact III
Hi!
I had the same promlem with my MDA Compact III!
I think it's a hardware problem. I tried so many roms, original, and cooked too... change the battery, clean the motherboard, but didn't help.
I was nervous, take out the battery for 5sec then reinstall it and took it in the refrigerator (NOT IN THE FREEZER!!!) for about 10minutes!
The result: don't crash about 1 hour!
So i took it back for 1day. And now, it works 2weeks continously, with no crash.
But unfortunately the battery (also the new one) holds the charge only 1day.
ElVikin said:
I hope u really try to get them to awnser what they change this time and then u can tell us? who knows it might help to know that.
Click to expand...
Click to collapse
Same problem here. I called HTC, they picked up my device, replaced the inside (motherboard) I guess because my device has a different IMEI number now. Very quick service, within one week my device was at my desk again.
I had similar problems.
had my HTC repaired (new MB)
problems remained the same.
after two repairs I received a new device and even that did not solve my problems.
Up till I bought a new battery
now he is working perfect again!
Hi i have the same problem as all of you. But is there really no solution to this problem except for sending it up to HTC and let the **** be replaced?
I also have the exprience that when its in my pocket is crashes also directly. but when it's just lying on the table nothing happens.
It is now lying there for 2 days without crashing.
i flashed it back to the original ROM. but still crashes after i put it in my pocket.
when i reset it (i cannot turn it normal on with the on button) it turns back on and starts normaly. i can use it now aslong as i don't put it in my pocket.
Please will some-one help find a solution for fixen it what causes these problems.
Many thanks in Advanced Fill
Fill said:
Hi i have the same problem as all of you. But is there really no solution to this problem except for sending it up to HTC and let the **** be replaced?
I also have the exprience that when its in my pocket is crashes also directly. but when it's just lying on the table nothing happens.
It is now lying there for 2 days without crashing.
i flashed it back to the original ROM. but still crashes after i put it in my pocket.
when i reset it (i cannot turn it normal on with the on button) it turns back on and starts normaly. i can use it now aslong as i don't put it in my pocket.
Please will some-one help find a solution for fixen it what causes these problems.
Many thanks in Advanced Fill
Click to expand...
Click to collapse
just get a new battery and it hopefully will do...it solved my problems...first time i hat the issue....right now i'm having it again...and it seems like the battery
you say it stays like that or 2 days...try running some heavy apps like igo or something other which is memory and battery consuming..it will probably crash..if it does...i'm 95% sure it's the battery
Fill said:
Hi i have the same problem as all of you. But is there really no solution to this problem except for sending it up to HTC and let the **** be replaced?
I also have the exprience that when its in my pocket is crashes also directly. but when it's just lying on the table nothing happens.
It is now lying there for 2 days without crashing.
i flashed it back to the original ROM. but still crashes after i put it in my pocket.
when i reset it (i cannot turn it normal on with the on button) it turns back on and starts normaly. i can use it now aslong as i don't put it in my pocket.
Please will some-one help find a solution for fixen it what causes these problems.
Many thanks in Advanced Fill
Click to expand...
Click to collapse
Exactly my case!!!
I am fed up of being consistently taking my battery out or soft reseting. If it stays over the table quiet, it's ok. The moment it goes into my pocket...
Just ordered Hero...
velhote said:
Exactly my case!!!
I am fed up of being consistently taking my battery out or soft reseting. If it stays over the table quiet, it's ok. The moment it goes into my pocket...
Just ordered Hero...
Click to expand...
Click to collapse
Thanks for replying, it seems that the problem has fixed itself. i put it in the original charger for about 3 or 4 days. it still crashed a couple times just reset with the charger connected put it back. i now just disconnect it from changer (2 days) (after 3 or 4 days in the charger) without any crash. runned tomtom for couple or houres?
i also turned the phone function off and removed the simcard.
hopefully it will keep running and then i gonna try to put my simcard back in.
Thanks
Fill
-----
Ok it crashed already again

G4 Bootloop

Hi Guys,
i am really confused and a little bit angry. The Following happened to me today:
My Phone (Unrooted, Locked BL) was behaving weird this morning.
It just randomly crashed and wouldn't boot up.
Eventually i got it to boot once or twice, but still it crashed, shut down and Bootloop.
A Reqular Factory Reset did nothing. now i'm trying to install the Regular KDZ-File for the H815, but things are just not working as expected.
Has anyone else had this problem before?
Is it normal that the LG Flash Tool is on 1% for over 5 Minutes and nothing changes on the Phone screen?
I want to know what has broken my phone so bad, cause this time, I just used it the way it was supposed to be used, no hard drops, no rooting, no changing of software in any means.
First LG Phone and it broke with no warning and no explenation. I'm a little disappointed right now.
Greetz
Esok
Same
The same happened to mine. Are you able to get to download mode by powering off your phone and plugging it into your computer? Im able to flash stock ROMs but nothing helps. The phone reboots by itself at random times and makes it into the operating system a few times but is never usable.
martinsavvy said:
The same happened to mine. Are you able to get to download mode by powering off your phone and plugging it into your computer? Im able to flash stock ROMs but nothing helps. The phone reboots by itself at random times and makes it into the operating system a few times but is never usable.
Click to expand...
Click to collapse
Hey,
yes i can get into download mode.
I am able to flash files, but the phone wont boot up anymore.
I just want to save my data, but i guess i wont be able to do so.
So i have to get to the store and get a new g4
Luckily i made a backup of my two weeks ago, so not much will be lost.
I also send an email to the LG customer Service, will post their reply here too.
I am really disappointed by LG at this point, i usually had motorola phones and they didn't have random errors like this one.
I switched to LG, cause G4 sounded awesome, but this error is making me sad.
I am really thinking that i won't buy another LG Product, which is making me sad too, cause usually most things made by them are great.
Greetz Esok
//==============First Request by me:======================
Hello dear LG-Service Team,
i just bought the premium product LG-G4.
Since some days, the Phone is beginning to hang and reboot, resulting in a bootloop.
Sometimes the phone boots, than optimizing Android for about 30 minutes (100+ Apps installed). After this happened, i kann use it again, but not fully.
To shortcut eventual questions:
The Phone is in factory State, no Custom Rom installed. The bootloader is locked and the Phone has not been rooted.
The mistake seems to come from your firmware.
I am really disappointed, because i paid a lot of money and no have a product which is barely usable.
I switched to LG because of the G4 and i don't want to regret this decision.
Kind regards
<<Esok>>
//=========================Reply======================
Dear Mr. <<Esok>>
thanks for Contacting LG-Electronics Germany
We regret the problems you have with your smartphone.
Probably the reason is a Update-Error in the Google Play Services.
To check this, start your device and activate ariplane mode.
in Settings ->Apps->All-> Google Play Services coose Uninstall Updates.
Afterwards turn airplane mode off.
Android will update the Google Play Services with a working Version.
If this is not working and your Phone is in Warranty, you got the possibility to send in the Phone, for a free Hard- and Software Check-up.
To trigger this process, please send us the following data via Email:
Phone Number, name, Adress, Buy date, Imei-Number, Serial Number, Modell, Color and a detailled Description of the Error.
After getting your data, we will send you an reply formular via email, with which you can send in the phone for free.
Please print the Coupon and go to you next mail station.
Please pack the device secure and put the Battery, a copy of the bill and a description of the error in the package too.
You can also bring the Phone to the retailer.
The average time for a repair is 5 Days.
You can also call us on 01806115411 to get contact and boost the process.
I hope i answered all your quetions.
kind regards
<<Lg-Customer Service>>
//===================================================================
Email and response, translated by me, so there might be some mistakes...
I don't like the response, it feels like not being taken seriously.
Well, nevertheless, i will go to the retailer and will see what happens.
I will keep you updated.
What do you think of this response?
Greetz Esok
That response is terrible lol. I called in and they said they do not support my phone because it is an international version. So there was nothing they could do for me.
I have a similiar issue, but mine was due to a OTA update, and I didn't know about the download mode until now.
Thanks.
Any tips when I can get into the download mode? I just wanna recover my personal data (images, and texts)? Flashing STOCK image would preserve the personal data right?
While your phone is off, plug it into your computer while holding volume up. If you are using LG flash tool to flash a .KDZ firmware file, you will come across an option that says Normal flash or CSE Flash. Normal flash will not wipe data, while CSE Flash will. I have flashed stock images and it didn't work. Hopefully it works for you though.
martinsavvy said:
That response is terrible lol. I called in and they said they do not support my phone because it is an international version. So there was nothing they could do for me.
Click to expand...
Click to collapse
+1 I'm in same boat and exact same issue with my H815. I love the device but this is unacceptable.
I'm having the same problem, it just happened to me all of a sudden and now I can't even get to the boot animation. I've been able to get into recovery 2 or 3 times but usually it just restarts before it even gets there. I recently updated to the newest xposed framework (though I've restarted just fine a few times after I installed it), did anyone else here do the same?
When I get home from work I'm going to keep attempting to fix it, I've flashed my current TOT but it failed after rebooting. I don't know if I'm having the same problem as everyone else but I'll update if I can find a solution.
same issue here on the at&t 810. Starting about 3 days ago I started getting random reboots + bootloops. Sometimes it would boot to the LG logo and stick, sometimes to the AT&T logo and stick, sometimes to the OS and freeze after the lock screen appeared. I can get into the OS and use it for awhile, then it will restart and it all begins again. 2 factory resets so far and no dice. I am rooted on 10e but have a warranty device on the way which undoubtedly will be on a higher firmware and will likely miss out on the potential coming bootloader unlock. At this point I am probably going to sell on craigslist and get a 6p. The phone is great when it works and I love the size, the looks, and the screen, but the lag and these reboots are unacceptable.
Just a short update by me:
I gave it to the retailer, they said it would take about 10 Days.
I hope this stuff won't happen again or this was the last time i am buying a LG Product.
I think i would have been better off by sending it directly to LG but nevertheless, maybe giving it to the retailer will make my warranty stay longer
I will keep you updated, including firmware Version the phone has after sending it in and so on.
All of the sudden my phone today just froze leaving me with a black background and no animations, the phone is very hot if I try to use it on that moment. Even when I reboot the phone stays very very slow and says system it's no responding.
What can I do? Even when a Reboot it some times works normal then suddenly does it again.
atrix_noob said:
All of the sudden my phone today just froze leaving me with a black background and no animations, the phone is very hot if I try to use it on that moment. Even when I reboot the phone stays very very slow and says system it's no responding.
What can I do? Even when a Reboot it some times works normal then suddenly does it again.
Click to expand...
Click to collapse
Sounds like a heat problem in your case.
What happens if you pull out the battery, wait 10 minutes to let the phone get cold and than reboot?
Well, no luck on my end. I could only even get into recovery one out of every 50 times or so that I tried, and when I managed to I wasn't able to sideload any system software because it wouldn't initialize the driver (my computer recognized the phone just fine, except the ADB portion). Clearing the data did nothing either. Luckily I'm on Sprint and the phone's being recalled anyway, so I just walked in and they swapped it no questions asked. At least after flashing a TOT and clearing the data they shouldn't have an easy way to tell I was rooted or anything.
esok44 said:
Sounds like a heat problem in your case.
What happens if you pull out the battery, wait 10 minutes to let the phone get cold and than reboot?
Click to expand...
Click to collapse
Thanks for replying, I completely restored phone today and was a success. No more black background.
same random rebooting issue here as well. and I just bought this phone brand new from a 3rd party :/
Update: I seem to have gotten past the problems after updating to 10n. Now running stock debloated 10n rom with no reboot issues (so far)
Update 2: Had 1 - 2 cycle bootloop on 10n
esok44 said:
Just a short update by me:
I gave it to the retailer, they said it would take about 10 Days.
I hope this stuff won't happen again or this was the last time i am buying a LG Product.
I think i would have been better off by sending it directly to LG but nevertheless, maybe giving it to the retailer will make my warranty stay longer
I will keep you updated, including firmware Version the phone has after sending it in and so on.
Click to expand...
Click to collapse
I don't see how you giving your phone to your retailer will extend your warranty. That makes absolutely no sense, since your warranty begins from your date of purchase.
My phone also ended up with the bootloop and having to exchange with a new unit. I'm on the TMO Variant H811.
Sfkn2 said:
I don't see how you giving your phone to your retailer will extend your warranty. That makes absolutely no sense, since your warranty begins from your date of purchase.
My phone also ended up with the bootloop and having to exchange with a new unit. I'm on the TMO Variant H811.
Click to expand...
Click to collapse
Actually German Law is a little bit different.
Regular warranty is not what i meant in my post, i meant the "Gewährleistung" its an additional kind of warranty given out by the retailer.
There are some cases in which this "Gewährleistung", which usually lasts for about 2 Years is made longer. Mostly this happens when the retailer would have to send in a product for the third time, they basically give out a new one, which will be treated like a NEW device. So new Warranty, new "Gewährleistung".
I hope this somehow made sense
Today i got my phone back.
They repaired it.
Everything is like it was before, so i am pretty sure they didn't change it.
Firmware Version is 10d.
The Phone is working so far.
Will keep you updated if anything changes.
Greetz Esok
same issues unlocked ... rooted ... android 6.0 hard reset doesnt work ... kdz method stay at 5% and nothing happend .. etc etc

[Q] Device reboots after SIM unlock

Hi all,
recently my D855 with v20T (root/xposed) started to sort of randomly reboot. It seems like once the device gets too hot, it's gone.
Happens rarely during general usage, often while playing a game, and especially often when starting the camera.
But it behaves strangely in general: if I do *not* unlock the SIM (and thus can't use the phone), the device runs forever, without a reboot, no matter what the device temperature is. Same for recovery (TWRP), it can stay there for hours and heat up however it likes, no reboot.
Removing the SIM and/or microSD does not make a difference, battery level does not matter.
I pulled a backup of the stock ROM, wiped everything (system, data, cache, dalvik) and flashed Fulmics 5.
Unlocking worked once or twice, the next time I entered my SIM pin, the lock screen showed, then reboot. This behaviour (unlock SIM, reboot) repeats endlessly. If I leave it turned off for 10-15 minutes - or sitting at the SIM unlock screen - it most of the time works fine after unlocking.
Wiped again, flashed robalm's v30F ROM.
Guess what, exactly the same.
On both variants, the phone got rather hot during the "optimizing app x of 190" screen, but never rebooted, only after I unlocked the SIM.
Let it sit overnight on the unlock screen, no reboot at all. Unlocked this morning, added my google account, rebooted - same thing again.
It's starting to drive me crazy, now it froze right in the middle of setting up the google account after another clean flash.
Is the phone prone for repair, or can anyone think of another solution to this weird issue?
Edit: Fun fact: if I manage to do the lock screen swipe before the SIM lock screen comes up, the phone reboots instantly as well.
Edit2: Followed the instructions from this thread to go back to completely stock v20T. Rebooted after optimizing apps before I could even choose a language, ran seemingly fine after this, started bootlooping after the first manual reboot. A full wipe later (volDn+Power) it at least boots. What the hell?
Thank you and best regards,
Sub
I have similar problem. Cant connect issue with exact cause, but it restarts almost every few minutes of use. Camera launch causes restart almost immediately. Phone is unusable. My VolDn button is not working so I'm currently a bit afraid to try anything new... I updated from Fulmics4.1 (i havent got reboot problems since last 1,5week ago) to 5.1 but issue persists even after full wipe. Seriously dont know what to think about it.
At first I thought that reboots are caused by low power (much more frequent with battery under 30%), then maybe big cpu load or high brightness.... now basically everything causes reboots. Im really annoyed this phone been crap since day one...
I havent tried your sim unclocking method as my doesnt have pin security etc. Let me know if you will find out solution.
foxracer89 said:
I have similar problem. Cant connect issue with exact cause, but it restarts almost every few minutes of use. Camera launch causes restart almost immediately. Phone is unusable. My VolDn button is not working so I'm currently a bit afraid to try anything new... I updated from Fulmics4.1 (i havent got reboot problems since last 1,5week ago) to 5.1 but issue persists even after full wipe. Seriously dont know what to think about it.
At first I thought that reboots are caused by low power (much more frequent with battery under 30%), then maybe big cpu load or high brightness.... now basically everything causes reboots. Im really annoyed this phone been crap since day one...
I havent tried your sim unclocking method as my doesnt have pin security etc. Let me know if you will find out solution.
Click to expand...
Click to collapse
Try a new battery
Anik49 said:
Try a new battery
Click to expand...
Click to collapse
Just received the device back from LG, they replaced the mainboard, even got a new IMEI and v30c preinstalled.
It is the same case, with the protective glass on top and a dent on the left plus the 2-3 micro-cracks around the frame.
Not sure if they swapped the battery. The problem showed up again with anywhere between 50 and 15 percent battery left.
Unfortunately I only tested it after leaving the shop, after a long walk to the bus which I caught just in time.
Setup assistant completed -> reboot.
Google setup nearly completed -> reboot.
Removed SIM and MicroSD, started phone, started camera, made a movie -> reboot.
Wiped again (strange enough, v30c only has 61 applications to optimize while v20* has 190+?), tried again, same thing.
Next, after letting the back camera take a movie for 2-3 minutes, I wanted to adjust display brightness to the max.
Result: see screenshot. This also happened with the cable plugged in.
I will return it for repair once more tomorrow...
Anyway, thank you for your answers
Regards,
sub
subworx said:
Just received the device back from LG, they replaced the mainboard, even got a new IMEI and v30c preinstalled.
It is the same case, with the protective glass on top and a dent on the left plus the 2-3 micro-cracks around the frame.
Not sure if they swapped the battery. The problem showed up again with anywhere between 50 and 15 percent battery left.
Unfortunately I only tested it after leaving the shop, after a long walk to the bus which I caught just in time.
Setup assistant completed -> reboot.
Google setup nearly completed -> reboot.
Removed SIM and MicroSD, started phone, started camera, made a movie -> reboot.
Wiped again (strange enough, v30c only has 61 applications to optimize while v20* has 190+?), tried again, same thing.
Next, after letting the back camera take a movie for 2-3 minutes, I wanted to adjust display brightness to the max.
Result: see screenshot. This also happened with the cable plugged in.
I will return it for repair once more tomorrow...
Anyway, thank you for your answers
Regards,
sub
Click to expand...
Click to collapse
It's a common thing if you use camera specially if you take video in 4k mode your phone heat up and you can't use full brightness in stock rom it's a feature try moded thermal config...also try new battery if battery percentage suddenly dropped it seems battery issue because i face the same problem....
Anik49 said:
It's a common thing if you use camera specially if you take video in 4k mode your phone heat up and you can't use full brightness in stock rom it's a feature try moded thermal config...also try new battery if battery percentage suddenly dropped it seems battery issue because i face the same problem....
Click to expand...
Click to collapse
I used to have thermals installed, the 75 dregrees Celsius variant, iirc.
Everything else was at stock, except for one short excursion to CM12 and one to ... some custom ROM.
Think I never actually took 4k videos, and the first 1,5 years the phone got a bit warmer but never really hot. Only recently it started to get really hot especially when using the camera, this also consistently was what could cause the reboot loops for sure. Other candidates were a few games which use more processing power like Alto's Adventure.
The battery drops by 2-3% after a reboot, because of the load the phone has (and the heat it develops during boot).
Anyway, I added the screenshot to the next repair request, and the woman at the counter said they'd look into the battery specifically (it seems to give out too much voltage, she said), but also check everything else once more.
I'll let them repair up to three times, then ask for a replacement, should be legal within 2 years after purchase in Germany.
Also, next time I'll take the 15 minutes (before doing a 1h/direction trip) to factory reset the phone, set it up and start the camera. If it reboots during any of this -> return, repeat.
Regards,
sub
Received my phone back from LG, finally.
Battery's broken - it outputs too much power.
Ordered a new battery and just put it in, so far no reboots during setup.
At least this got me a new mainboard and new IMEI
Regards,
sub
Hahahahahahahahaha
I just wondered why the phone shows 25 GB free everywhere, even without SD.
Turns out, during repair instead of replacing the 16GB/2GB board with an identical one, they installed the 32GB/3GB board
\o/ for LG

HELP!!! Is this bootloop hardware related or software or is this phone dead??

Ok, first time poster, so I hope I can explain this all the right way.
So I bought an ATT branded note4 outright, refurbished and unlocked so I could use it here in Australia.
It was working fine for about 8mths and until last month started to drop all signal and reboot, but when it would reboot it would still show no signal
and reboot again after about 2 minutes.
This process would take at times an hour or two to come right and return to normal with full signal. (This would happen daily)
While it was in this rebooting loop it would seem hotter in the top half of the screen, thinking it was a battery issue I bought another battery
and also tried my partners battery but was having the same issues regardless.
Thinking it might have been the firmware, I updated to the ATT 5.1.1 ROM, but now that 2minute window that I had before is now taken up by "Optimizing app # of 23"
and it gets to between app# 12/18 and then freezes and reboots into this crappy bootloop.
I have tried safe mode/recovery mode/removed sd card/factory reset/clear cahe.. EVERY combination you could think of,
but one thing I have noticed is that when in recovery mode it doesn't turn off after a couple of minutes, I can leave it on that menu for 20 minutes and it wont have an issue.
I've been told it could be anything from the motherboard packing it in, to a "virus"(?), to a corrupted EFS file.
Does anybody here have any clue or could point me in the right direction.
Thanks in advance
Anyone???
Boots1 said:
Anyone???
Click to expand...
Click to collapse
Try removing the sim and flashing with odin

Note 2 keeps restarting everytime!

Hi guys. A relative asked me if i can repair his note 2. I think his network was locked and the phone keeps restarting everytime. I flashed a new firmware on the phone. The one I use on mine..XXUFNG1, and also I went into recovery and clear data and cache after flashing. But still the phone keeps rebooting everytime. Why is that and how can I fix this?
Note : It's not bootloop or anything. You can switch on the phone, use it for like 5mins and then it freezes and restarts itself. And it goes on like that. Sometimes it doesn't restart also and you can use for more. But most of the time after 5mins, it restarts.
naeem86 said:
Hi guys. A relative asked me if i can repair his note 2. I think his network was locked and the phone keeps restarting everytime. I flashed a new firmware on the phone. The one I use on mine..XXUFNG1, and also I went into recovery and clear data and cache after flashing. But still the phone keeps rebooting everytime. Why is that and how can I fix this?
Note : It's not bootloop or anything. You can switch on the phone, use it for like 5mins and then it freezes and restarts itself. And it goes on like that. Sometimes it doesn't restart also and you can use for more. But most of the time after 5mins, it restarts.
Click to expand...
Click to collapse
ROM?kernel?
hishamnoobie said:
ROM?kernel?
Click to expand...
Click to collapse
Everything stock..like I said! Before flashing to the newest rom too, everything was stock.
Was the phone dropped or exposed to moisture? Possible battery problem? Reboots even when connected to a charger?
audit13 said:
Was the phone dropped or exposed to moisture? Possible battery problem? Reboots even when connected to a charger?
Click to expand...
Click to collapse
Hi..thanks for reply. I tried another battery in it. The one I use myself. But it still restarts. I don't know if the phone was dropped or anything though. The relative just told me that it needs to be unlocked. Do you think it's software related? Or something is damaged in the phone?
Since it is running a stock ROM and still behaves this way after a factory reset, I think there is a hardware problem.
I might have a similar problem. I copy from another thread:
Hey guys,
I like this rom so far. But since 2 weeks I got an issue.
My phone randomly turns off, atleast I guess that's what happens. Sometimes the "notify" LED is on permanently but the display won't go on. To start the phone again I have to put out the battery and put it back in.
My battery is randomly empty pretty fast even if I just let the phone turned off. This happens like every 5 minutes.
I already bought a new battery but the problem hasn't changed.
What to do now? :>
Click to expand...
Click to collapse
I like the phone. It's over 5 years old and runs like the first day. Except it DOESN'T wake up anymore after a short time when the screen is off. I can press the power/home button as many times as I want and wait for 5 minutes, screen will still be off. Only way to "wake" it up again is to put the battery out and in again.
Currently I don't have enough money to buy a new phone and I can get a new motherboard for 25$. But I'm not sure if this will fix my problem.
I'm not even sure if this is the ROMs problem since it worked with all earlier versions of this rom perfectly and even the latest release worked for weeks/months.
Click to expand...
Click to collapse
As long as I leave the screen turned on the display/phone won't go off and I can use it as always. Even the battery don't drop drastically then.
It might be exposed to moisture tho. When I take a hot shower I'll leave it on the window sill and the room gets steamy.
ROM: [7.1.2 r24] LineageOS for N7100 [Unofficial] - Version from 08.10.2017
GAPPS: Open Gapps ARM 7.1 Aroma - 03.05.2017
Baseband: N7100XXUFND3
Ril and other stuff I don't know where to check.
Some years ago I had the SDS and the motherboard was changed without the EMMC bug.
Sometimes my phone only charges in slow mode too.
I try a clean install and newer pico gapps now. Maybe it will solve the problem. I'll reply then if it worked or not.
[EDIT]
Since my phone was low on battery I turned it off completly and put it on the charger. After an hour or so I wanted to look after it.
The green charging light stays on and if I want to turn the phone on nothing happens. The light stays on even after removing the charger.
Seems like a hardware, not a rom problem? Will changing the motherboard fix this?
[EDIT 2]
Quick update. I fully wiped/factory resetted and clean installed newest version of this ROM + newest mini pico GApps. Still the same problem. Gonna try it with another ROM/kernel now and if the problem persists it's a hardware fault.
[EDIT 3]
Fully wiped again and changed ROM+Kernel. Still the same problem.

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