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Has anyone experienced any spontaneous reboots on their ZL yet?
Mine has done it twice, both times while doing things related to Google apps or accounts. The first time my phone rebooted, I was actually adding my Google account after a reset to fix the notification LED issue. When I unchecked the option to backup and restore my Google account, my phone blinked the xperia logo, then rebooted (Sony logo, xperia logo, boot animation then done). It was a very quick reboot.
The next time, I was installing apps from the Play Store. A bunch of apps were queued up, downloading and installing over Wi-Fi. I hit the home button, then was about to open up a folder to check my Gmail app settings when again, the phone blinked the xperia logo and proceeded to reboot. When it was done, it continued to install my apps as queued from the Play Store, as if nothing happened. It hasn't done it since (of course, this was only a few hours ago).
My phone is not rooted & I have not messed with the bootloader unlocking or anything. It's 100% stock while I'm evaluating it against my SGS3 for a potential permanent switch. I've got the US C6506 model (black, on AT&T -- LTE is working fine).
I really, really like this phone so far, and I'm just hoping that these two reboots were a random oddity, not to be repeated.
Interestingly, I actually fully set up the phone yesterday evening, but when I discovered I had the notification issue, I reset it this morning and re-did all of it. The phone did NOT reboot at all yesterday in the 4 or 5 hours I spent playing with it, either. It sat in standby overnight without incident as well -- all prior to the reset today & the 2 subsequent reboots.
I guess from here it'll be a waiting game to see if it does it again, but in the meantime, I was curious if anyone else had seen anything like this with their ZL.
Yup, seen it twice myself. First time, I noticed that it had rebooted when I couldn't find any previously running apps. The second time I was in the Settings screen when it randomly rebooted. I was just about to click the Display setting when this happened.
I'm just running the stock ROM on the C6506 model. I'm keeping an eye out on it and will see if there is a pattern.
rajeshr said:
Yup, seen it twice myself. First time, I noticed that it had rebooted when I couldn't find any previously running apps. The second time I was in the Settings screen when it randomly rebooted. I was just about to click the Display setting when this happened.
I'm just running the stock ROM on the C6506 model. I'm keeping an eye out on it and will see if there is a pattern.
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Click to collapse
Thanks ... in some ways it's good to know, and in others, it worries me. I hope it isn't a pattern, though. Thus far, I've used the phone since the two reboots without incident (music playing, bluetooth connections, and phone calls).
EDIT: A third reboot. This time I had just updated a few apps in the Play Store, returned to my home screen and was about to turn my Wi-Fi off when it rebooted. One common thread thus far is that my Wi-Fi has been on each time. I have no idea if that's related or not, though.
I have been using mine for 1 week and have not had any reboots. I am using the hspa version (c6502) and I am a heavy user
Seems to me that the random reboots are isolated to 6506 models. I haven't had one single reboot in the past week I have been extensively using mine (6502). However, while I was on CM10, my phone hung and rebooted like hell.
Yeah I'm c6502 aswell no random reboots.
Sent from my Nexus 4 using xda premium
No reboots on C6502
Same here, have been using my ZL (C6502) for the past 22 days without a single reboot or freeze. Heavy usage for last week or so (wifi on all the time). I too think this and the low call volume issue might be specific to C6506 (LTE) version.
6502 here as well, no reboots so far and I'm rooted. Been about 2 weeks.
I'm starting to think this issue is unique to me and/or my phone -- at least my specific case. Actually, I'm glad for that, because I love this phone.
I realized I may in fact have memory card corruption. I'm going to explore that further, because I had some serious issues with my SGS3 corrupting microSD cards. I thought it hadn't done it on my current card, but I have discovered some corrupted sound files on it, so I think I'm going to do a format of my microSD and see what happens.
Thanks for all the input, folks!
I had some reboots in past one week
using since March 10th
today itself had 2-3 reboots
one more thing is had blank screen during a phone call also
we need Roms for this device I never understood
why there is so much delay in release of custom Roms
Once,
but not sure it was rebooting. Cuz the screen went blank. Then i had to press a tiny yellow button that says off near the sim slot. Then it came back to life. Plus my wake up button is kinda hard to press. Do you guys hv that problem?
Sent from my C6502 using xda app-developers app
safuan7822 said:
Once,
but not sure it was rebooting. Cuz the screen went blank. Then i had to press a tiny yellow button that says off near the sim slot. Then it came back to life. Plus my wake up button is kinda hard to press. Do you guys hv that problem?
Sent from my C6502 using xda app-developers app
Click to expand...
Click to collapse
I wouldn't call that a reboot, at least not in the sense that I was seeing them. That's more like a freeze that would require a battery pull on a phone with a removable battery (I used to have this all the time on the Samsung Captivate).
My ZL was rebooting fully right in front of me (screen goes black, then the xperia logo, followed by the full normal boot sequence, just very rapid -- the boot animation is shorter than a cold boot).
Note -- I have not actually fixed my memory card yet, and I have not seen any more reboots. I'm nearly a full day on my current battery charge, too.
I have the C6506 also, and I get numerous random reboots also. I did get few logcats, but I have not seen any revelant info that causes the random reboots. I replaced my micro-sim, thinking it may caused modem panic reboots, but that wasn't root of the problem. However, I did notice that the reboots occurred less without micro SD card, but I haven't completely made that conclusion yet (I want to listent to my music!).
I also have a 6506 and have been experiencing some kind of reboot. Not a full reboot that the OP has been talking about, but one where my screen just turns off. At first I thought better battery stats was just having issues as my stats would end up all out of whack for no reason. Then today the screen shut off while in use. I only had to push the power button to get back to my lock screen. But again my stays were all out of whack. I'll have to pull the log later but I hope this is is just a software issue.
Qmann05 said:
I also have a 6506 and have been experiencing some kind of reboot. Not a full reboot that the OP has been talking about, but one where my screen just turns off. At first I thought better battery stats was just having issues as my stats would end up all out of whack for no reason. Then today the screen shut off while in use. I only had to push the power button to get back to my lock screen. But again my stays were all out of whack. I'll have to pull the log later but I hope this is is just a software issue.
Click to expand...
Click to collapse
Interesting. I've replaced all my corrupted files on my microSD card as of now, and so far, aside from that first day, I have not had a single reboot of the kind I saw before. Actually, no reboots at all, and my current uptime shows it (111 hours).
What happened to me was I had had a bad microSD card in my SGS3 -- files would become corrupted with time on it. I finally replaced it with a new one, but apparently when I copied my data back to it, I inadvertently copied a few of the corrupted audio files (notification sounds, actually) but never noticed it. I realized this when I was resetting my notification sound for text messages and heard the signs of corruption in the file, and so I began to think my phone had been responsible for the corruption. I know now that that can't be true -- otherwise I'd have some corrupt photos as well, and I don't. Only a few select sound files were bad, and because I keep regular backups of the contents of my microSD cards, I just copied the wrong ones (d'oh!).
Of course, I've had random reboots on android devices before (Asus TF101), so I'm quite wary of them -- if I see anything further, I'll post about it.
I looked at the log and saw nothing conclusive that would be making my screen turn off. I also checked my up time and it hasn't reset, so I know it's not a true reboot. When I put my SD card in I just wiped it from the phone. The only thing I put back was music files. Thinking about that now it wasn't the clean start I usually give my phones. So I just wiped the card again and we will see today if anything happens
C6503 here and I've been getting a couple reboots a day since I bought it. 2 days ago I used PC Companion to solve another issue (random loss of network signal) by reinstalling the phone software and that seems to have fixed it. Unfortunately the random reboots are still present.
I don't use any SD card at the moment.
I've now been using my ZL for a month or so, and since that first day when I made this post, no spontaneous reboots at all. I have no idea how or why, they just stopped on their own.
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....
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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
Hello!
Everything was working fine until my phone started acting up about 6 months ago. The screen began to become unresponsive, apps crashed when switching between them and random reboots occurred frequently. I thought back then it had to be software related, so I completed multiple factory resets, and completely removed everything on my phone. It became slightly more usable, but these crashed and random reboots still occurred.
Last week, my phone continued to reboot, but a new problem occurred-it no longer would turn on after the reboot. I tried plugging it into the wall, pressing the volume down + home + power to force bootloader mode, but it wouldn't turn on at all. The fix was I had to remove the entire case, take out the battery and put it back in the phone. After that it would turn on, but only for a few minutes before another random reboot occurred and I had to remove the entire battery again. My phone is now virtually useless as I cant before even the basic functions, calling and texting without it becoming unresponsive or shutting off and not turning on.
I narrowed it down to the eMMC chip. I am almost certain that is corrupt, because during some of the reboots it would fail and throw me into download mode with the error:
mmc0_read_fail
or something along those lines. My last attempt at recovering the phone was to the stock rom PE2 with a PIT file (I had created before I started flashing custom roms). Each time I would attempt to flash with ODIN it would result in a:
mmc0_write_fail
However, I was finally able to get the PIT and PE2 firmware to flash. Now I have a half-working phone that will randomly reboot still and in order to turn it back on, the battery has to be pulled out for a minimum of 15 seconds.
New Issue I just noticed: When the screen turns off when the phone is inactive, it won't turn on again after pressing the power or home buttons. Only solution to this is once again, pull battery and hope I boot into system again.
I am pretty sure there is no fix to this problem on the software side, but let me know if you have a suggestion! Thanks!
Same situation. This thing is a lemon!
Sounds like hardware failure.
Replaced the battery yet? My original didn't last fifteen months before it started shutting the phone down. It's the first thing I think of when someone reports having to pull the battery.
Are you checking battery capacity before the battery pull by plugging in when it shuts down? Mine showed 0%. Before the shutdown, it may have indicated as high as 30%. It gets worse.
You didn't mention capacity when plugged so I thought I'd ask.
Sent from my SM-N910P using Tapatalk
One of my note 4 had same issue. Its a hardware issue. I was able to get the phone working by using a heatgun on the motherboard to try and reflow the solder on the chips. The phone works like brand new after the heatgun but the phone would only work for like 3 or 4 days before crapping out again. Ultimately ended up buying a used motherboard on ebay with a clean esn and its working perfectly again.
My wife's Note 4 started the random reboot thing and screen being unresponsive thing last week. She said it randomly started after installing Snapchat, so she uninstalled it hoping that would fix it. It didnt. I put a new battery in it thinking the original was bad, but still same issues. Then did a factory reset but that didnt work. After a lot of searching I stumbled on to someone who mentioned downloading an app called Wakelock. I did and phone has been running smoothly for several days now.
I also recently did the most recent update hoping that would fix the issue, it didnt but during the install I did get one error of emmc read failure or something like that. May just order a used/new motherboard just in case.
Just be careful when swapping out the motherboard as it essentially is taking apart the whole phone including the removal of the LCD.
Hi all,
I have a vanilla, unrooted tablet which had Marshmallow installed a few weeks ago. It reboots constantly (like I am lucky to get 2-3 minutes out of it). Sometimes it reboots 7 or 8 times in a row until I give up and hold the power button down.
Have cleared cache and factory reset (multiple times). This hasnt solved the problem. I thought this might be an issue with the Google Play Store, as it generally crashes as soon as I run this (as the first thing I do after the reset) - so after one of the resets I downloaded the latest playstore APK and installed it. Also did not login to the play store in case this was corrupted or something. Have tried this without loading ANY apps other than the stock that comes after the reset - but still the issue persists.
All of the above has been done with the SD card removed - and with full charge
Generally it crashes as soon as I try and run any app or go to settings etc. This is even with the completely factory reset and wiped tablet with no additional apps installed.
Having tried everything, am down to the theory of hardware fault - specifically the battery. After the last update (which failed half way through) I had big problems with battery life and the tablet got (and still gets) quite hot. I am thinking something in the new update might have put extra stress on the battery, which after a few weeks has caused it to fail.
Is this possible, and is there anyway in logs etc to tell if this is hardware or software?
Anyway, other than throwing this away and buying a new one - am not sure what the next step to solve this is. (Maybe revert to previous Android?). Any suggestions or help is welcome, but I am thinking of throwing this away and not throwing good money after bad...
(Have emailed Samsung but of course never heard back - so suffice to say my next tab wont be Samsung)
try download your stock firmware and flash it with odin via your pc.
i had problem with my tab...i had restarts always...whatever i do, every few seconds it restarts by itself... but it works normaly on cable so i went to search for a solution and lol i laughed when i saw what was the solution...i removed the backcover fo the device and then just reatached the battery connector cable and thats it and now my tab works normaly even on battery.not sure if u have similar issue but u can try it it will take u 5 min work and also u have video on Youtube how to dissambly galaxy tab S...cheers mate and wish u good luck
I solved this prob yesterday, itb works fine nw, didnt crash since, just open the tablet remove the basttery vlean its pins then reinstall it
U can find vedios explaining hw to remomve z battery
OK - have updated firmware with ODIN (and tried 3 different versions going back to Android 5)
Have undone the back and removed battery and reset cables. Even replaced the battery with one I bought off Ebay
Cant think of anything else, must be a fault on a board somewhere...
I think she is dead. :crying:
Thanks to those who posted and sent me PM's - really do appreciate it.
By the way, it is definitely something to do with the power. When it reboots and it is attached to a USB, the screen flashes up with the empty battery (ie charging from completely empty) symbol momentarily (maybe a second or 2 tops) before flashing up with 64% or whatever the actual battery level is...
michjfro said:
By the way, it is definitely something to do with the power. When it reboots and it is attached to a USB, the screen flashes up with the empty battery (ie charging from completely empty) symbol momentarily (maybe a second or 2 tops) before flashing up with 64% or whatever the actual battery level is...
Click to expand...
Click to collapse
If your battery can go from 0% to 64% in a few seconds, the battery connector needs to be resoldered due to cracked solder joints.
This rework only takes 5 minutes , ask a repair shop or anyone knows how to solder for assistant.
https://www.youtube.com/watch?v=DaAKjmrMR2s
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...