Develop Bugs

[Q] Moto 360 keep rebooting

Hi,
(Sorry for my english, I'm French)
I have a problem with my moto 360. I boot it this morning with no problem, the battery was 100%.
After 2 hours, I couldn't turn on the screen, and couldn't do anything, there were no reaction. I waited 5 minutes and the watch has rebooted. Since that moment : the "M" logo stays for some seconds and it keeps rebooting. The only way to stop it is to press the button for 20 seconds.
Any solution ?
Thank's for your help.

I've had a few random reboots today. I think it has something to do with the 5.0 update, although I've seen some strange bugs over the past few days (synced apps disappearing until I re-pair the watch in the Android wear app, etc.
Have you tried popping it back on the charger? The state change may be enough to stop the boot loop...

Same thing is happening to me and it just wont charge, it rebooted a few times and then it just displays the battery icon gets really hot and doesn't charge!

rickjimenez said:
Same thing is happening to me and it just wont charge, it rebooted a few times and then it just displays the battery icon gets really hot and doesn't charge!
Click to expand...
Click to collapse
I called Motorola and I couldn't do nothing about this problem ! I had to send back my Moto 360, and they promessed me it would take a 7 days to be repaired. I had to call several times and wait for a month to finnaly have a new one. (I'm in France btw)

Boot Looped

Hello,
Today, while I was using my phone, it restarted itself and has been stuck at a boot loop almost entirely since then. It has successfully booted up 2-3 times but will usually restart itself within 30-45 seconds of booting and then will be stuck in a boot loop again. When it has started up its usually after it has been bootlooping for a while. I have an H811 , I'm rooted and using xTreme Rom v2.0. I have had occasional random reboots here and there before but the phone always booted right up again without any issues. I haven't done anything with root/recovery since early September.
I've tried doing a factory hard reset without any luck. My phone booted up after I tried the hard reset and it was like the reset didn't happen. I can't boot into TWRP. I can boot into download mode and I tried to reset using kdz. It got to 100% but the the phone restarts and is back in the boot loop (then the lg flash tool gets an error and force quits). I've tried removing my sd and sim cards, I've tried swapping to a different battery, I've tried leaving the battyer out and letting the phone cool down. Nothing is working. I have noticed that when the phone is going to boot up correctly the full LG animation plays. When the phone is going to boot loop I only get a static LG Powered by android image.
Since I tried and failed to reset to stock using kdz, the phone no longer boots up past the LG screen. I've redownloaded the kdz file and tried to reset again with the same results. When I have it in download mode Windows recognizes the phone but it says there's an issue with the MTP driver. I've reinstalled the drivers and I still get that the MTP function isn't working correctly.
Any suggestions?

Hey man u r just having my problem. There is a thread already for this http://forum.xda-developers.com/showthread.php?t=3233160
Did u do CSE flash? If not, try to connect via adb.
Sent from my LG-H815 using Tapatalk

I am having the same issue. I have T-Mobile G4 that is NOT rooted. I bought it on release day. I too would get random reboots, particularly after the recent security update. I also noticed that the operating temperature was really high, a lot lately. I thought it was a rogue app (clean master). Anyway, I updated a few apps and installed a few watch faces. Suddenly, my phone was drained prematurely. Plugged it into a quick charge charger when all the fun begins. Early on it would boot to the home screen but would reboot a minute or two later. Then it stopped booting to home. On two occasions that I caught, it was starting up like a firmware update just installed with the "Android is starting 1 of 143 apps" type of line. After seeing that and still not getting to home, I figured I might as well factory reset it. Well I was amazed to discover that a factory reset yields the same boot loop. All I get is the LG logo.
Defeated. I go to my local TMo retailer where I bought the phone only to find out that I have to wait for delivery of a replacement. I'm in Jump btw. I did notice that when the phone will boot to home screen for whatever length of time, the LED would work. The LED does not work during a boot loop. My research on this issue uncovered an alarming trend on the Internet. No solution other than replacement. No cause has been identified either. Without proof, these are my top suspicions: Quick charge, 128G SD, apps moved to SD. My hunch is quick charge. All of my chargers are Qualcomm certified quick chargers. and I use them 95% of the time. I would hate to add LG to my list of boycotted Android vendors under Samsung.

IrieBro said:
I am having the same issue. I have T-Mobile G4 that is NOT rooted. I bought it on release day. I too would get random reboots, particularly after the recent security update. I also noticed that the operating temperature was really high, a lot lately. I thought it was a rogue app (clean master). Anyway, I updated a few apps and installed a few watch faces. Suddenly, my phone was drained prematurely. Plugged it into a quick charge charger when all the fun begins. Early on it would boot to the home screen but would reboot a minute or two later. Then it stopped booting to home. On two occasions that I caught, it was starting up like a firmware update just installed with the "Android is starting 1 of 143 apps" type of line. After seeing that and still not getting to home, I figured I might as well factory reset it. Well I was amazed to discover that a factory reset yields the same boot loop. All I get is the LG logo.
Defeated. I go to my local TMo retailer where I bought the phone only to find out that I have to wait for delivery of a replacement. I'm in Jump btw. I did notice that when the phone will boot to home screen for whatever length of time, the LED would work. The LED does not work during a boot loop. My research on this issue uncovered an alarming trend on the Internet. No solution other than replacement. No cause has been identified either. Without proof, these are my top suspicions: Quick charge, 128G SD, apps moved to SD. My hunch is quick charge. All of my chargers are Qualcomm certified quick chargers. and I use them 95% of the time. I would hate to add LG to my list of boycotted Android vendors under Samsung.
Click to expand...
Click to collapse
Yah mine was also on charge while it happened. But it was on LG provided charger.

nipun1110 said:
Hey man u r just having my problem. There is a thread already for this http://forum.xda-developers.com/showthread.php?t=3233160
Did u do CSE flash? If not, try to connect via adb.
Sent from my LG-H815 using Tapatalk
Click to expand...
Click to collapse
Thanks. I'll try reposting this there. I did use CSE flash. Oddly enough it booted up once this morning for about a minute then got stuck and rebooted. Now its back in the boot loop.

IrieBro said:
I am having the same issue. I have T-Mobile G4 that is NOT rooted. I bought it on release day. I too would get random reboots, particularly after the recent security update. I also noticed that the operating temperature was really high, a lot lately. I thought it was a rogue app (clean master). Anyway, I updated a few apps and installed a few watch faces. Suddenly, my phone was drained prematurely. Plugged it into a quick charge charger when all the fun begins. Early on it would boot to the home screen but would reboot a minute or two later. Then it stopped booting to home. On two occasions that I caught, it was starting up like a firmware update just installed with the "Android is starting 1 of 143 apps" type of line. After seeing that and still not getting to home, I figured I might as well factory reset it. Well I was amazed to discover that a factory reset yields the same boot loop. All I get is the LG logo.
Defeated. I go to my local TMo retailer where I bought the phone only to find out that I have to wait for delivery of a replacement. I'm in Jump btw. I did notice that when the phone will boot to home screen for whatever length of time, the LED would work. The LED does not work during a boot loop. My research on this issue uncovered an alarming trend on the Internet. No solution other than replacement. No cause has been identified either. Without proof, these are my top suspicions: Quick charge, 128G SD, apps moved to SD. My hunch is quick charge. All of my chargers are Qualcomm certified quick chargers. and I use them 95% of the time. I would hate to add LG to my list of boycotted Android vendors under Samsung.
Click to expand...
Click to collapse
Sounds like the boot loop issue is a decent sized one- quite a few others, from different variants, having all having a similar issue. For me I was walking with my phone checking facebook when it restarted and got stuck. I definitely notice the LED issue too. I'm not on jump but will likely go into T-Mobile today and see what they tell me.

HappyPessimist said:
Sounds like the boot loop issue is a decent sized one- quite a few others, from different variants, having all having a similar issue. For me I was walking with my phone checking facebook when it restarted and got stuck. I definitely notice the LED issue too. I'm not on jump but will likely go into T-Mobile today and see what they tell me.
Click to expand...
Click to collapse
They will give u a replacement. that's all. but noone will say what's causing it.
Sent from my LG-H815 using Tapatalk

HappyPessimist said:
Thanks. I'll try reposting this there. I did use CSE flash. Oddly enough it booted up once this morning for about a minute then got stuck and rebooted. Now its back in the boot loop.
Click to expand...
Click to collapse
Exactly what happened to me. now after CSE flash of KDZ, it won't start at all. just boot looping. also after hard reset.

[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

G4 bricked, possibility of resurrection?

This is embarrassing, but I was trying to install Pokemon Go on my G4 and the phone got really hot and rebooted. It never came back. Just went into a boot loop. I found instructions online on how to do a master reset with the power button and volume down letting it up briefly when seeing the logo and then pressing it again and letting it boot. I answered the question about deleting all user data and then answered it again. It said it was erasing data, then froze for a few hours at "optimizing apps" on one of the steps while I left it plugged in. I eventually pulled the battery to get it to respond again and now it just shows the LG logo and then goes dark. While dark it doesn't respond to button presses or let me try again to power it on, etc.
Any chance of me getting this phone working again? Is there anything else I can try aside from the master reset that I've already tried?

Hello if you look under the battery and your serial number starts with 505 or close its dead.
Sent from my LG-H815 using XDA-Developers mobile app

Eudmin said:
This is embarrassing, but I was trying to install Pokemon Go on my G4 and the phone got really hot and rebooted. It never came back. Just went into a boot loop. I found instructions online on how to do a master reset with the power button and volume down letting it up briefly when seeing the logo and then pressing it again and letting it boot. I answered the question about deleting all user data and then answered it again. It said it was erasing data, then froze for a few hours at "optimizing apps" on one of the steps while I left it plugged in. I eventually pulled the battery to get it to respond again and now it just shows the LG logo and then goes dark. While dark it doesn't respond to button presses or let me try again to power it on, etc.
Any chance of me getting this phone working again? Is there anything else I can try aside from the master reset that I've already tried?
Click to expand...
Click to collapse
send it back for reapir.

hi, mine was 509. It died 2 weeks ago, showing only "LG life is good" if trying to boot it. No way into recovery. (did boot one time very slowly to lockscreen before the definitive death)
This seems to be the same for you.... dead CPU I suppose. I'm still waiting for the repair.
(curious about the 505 asserted here, since mine was higher)

Hello the first 3 digits of serial number indicate date of manufacture, and the early ones have a manufacturing defect.
Sent from my LG-H815 using XDA-Developers mobile app

Hello,
mine was 510 and died on me 4 weeks ago, (boot loop with only LG logo) as it died from overheating (or at least was very hot when die occured), I tried to cool it and it was "succesful"
It put it in the freezer for some time and then could boot it on TWRP and make a full backup (I left it in the freezer the whole time)!
boot at normal temp lead to black screen in 10-15secs. I sent it back for repair (motherboard replacement was made in less than 1 week by Lg France), I am now waiting the answer from Lg developer to unlock the bootloader again.
I guess you can at least try and see if you can have the same result as me.
Marc

G4 bricked, possibility of resurrection?
Click to expand...
Click to collapse
No.

LG G3 Keeps shutting down - is it hardware?

Few days ago my phone began to shutdown either immediately or after a short freeze of the system. This happens in many situations, although mostly outside/when I'm on the move (I tried disabling GPS but it didn't help). Usually when I switch it on again it either shutdowns just as the lockscreen appears or doesn't work at all until I remove the battery for at least 10 seconds. The latter sometimes helps and the phone works properly for a couple of hours and the whole thing start over. I tried clearing cache, restoring factory defaults, changing the software completely (Fullmics, LineageOS) but nothing helps. I made sure that this is NOT battery related - I have a spare one and it's all the same.
I'm not sure whether the issue is hardware or software related. Here are my suspicions:
Why it might be a software issue:
- Just before the phone shut down for the first time I noticed that the upper part of the display stopped working - I simply could not pull down the notification bar. I rotated the screen and noticed that the same thing happens to the menu buttons which obviously replaced notification bar in the upper part of the screen. Eventually it turned out that this is not a defect of the screen and that part of the screen simply froze. After reboot it worked normally for a while and then froze again. After changing the software the problem seems to be gone.
- When I'm in recovery mode (TWRP) the phone usually is stable, it shut down only once or twice
Reasons for hardware:
- For a couple of months now the Wi-Fi is not working properly. It disconnects and whenever I try to reestablish the connection it goes into "Saved->Connecting->Saved". Maybe this is just the next step towards the graveyard?
- It's about 6 months since the warranty has expired
Have you experienced this and/or have any idea what's going on?
EDIT: With time it was more and more difficult to turn the phone on and keep it running and right now it's not turning on at all.
EDIT 2: I made it run again. TWRP works perfectly but once I reboot to System it shuts down almost immediately.

Nobody has any idea?

I'd guess it's the battery.
When I bought my G3 in Oct 2015, I had random reboots aswell, nothing helped (turning off mediascan, restore kdz via LGFlashtool 2014 etc.).
So I went ahead and bought another battery (7000mha) from ebay.
Never again suffered from those annoying random reboots
(Inserting the old battery, makes the reboots reappear, so that is postivie proof for the battery thesis).

-Rye- said:
I'd guess it's the battery.
When I bought my G3 in Oct 2015, I had random reboots aswell, nothing helped (turning off mediascan, restore kdz via LGFlashtool 2014 etc.).
So I went ahead and bought another battery (7000mha) from ebay.
Never again suffered from those annoying random reboots
(Inserting the old battery, makes the reboots reappear, so that is postivie proof for the battery thesis).
Click to expand...
Click to collapse
As I wrote above, I have two batteries and the problems exists with both of them.

In that case try this:
https://forum.xda-developers.com/lg-g3/general/g3-hardware-problems-solved-bsod-screen-t3597086
Regarding your battery: You didn't only get "original" batteries ? I have a third party one... All original ones I had so far failed me...