S9 Randomly Rebooting while Idle - Samsung Galaxy S9 Questions & Answers

Hello everyone.
I'm currently with an annoying issue:
My Samsung Galaxy S9 (non-rooted) is randomly rebooting only while idle.
Whenever I'm charging, playing or perform any interactive activity, the phone works as it has been working for the past 2 years.
As soon as I left it idle for a while, it simply reboots. Usually do not take more than an hour for the reboot to happen.
Already performed a facory reset, cleared cache, force shutdown (power + volume down), worked on safe mode and nothing seems to lead me to the root cause.
It started on tuesday (December 29th @2020).
Thanks in advance,
Caio

I have had a similar problem for a long time. Sometimes my Galaxy has given to restart without stopping as far as it wants ... Once it happened to me that for a day it did not stop restarting after installing the Google assistant, only by entering safe mode and deleting it I could solve it .. . And one of the last was that I changed the CSC and the mobile just did not stop restarting, even after downloading and reloading it, I deleted and formatted absolutely everything and I could not use the mobile normally ... After several tests I realized that it restarted after unlocking, so I deactivated the passwords and fingerprint but it did not work, so it occurred to me to install another launcher and problem solved. I have no idea why this is happening to me, maybe is an error in the internal memory due to a bug in the firmware (?)... Anyway, I had read some time ago that there were similar problems caused by a GPU failure in the Snapdragon models, but I no idea.

Renos_Z said:
I have had a similar problem for a long time. Sometimes my Galaxy has given to restart without stopping as far as it wants ... Once it happened to me that for a day it did not stop restarting after installing the Google assistant, only by entering safe mode and deleting it I could solve it .. . And one of the last was that I changed the CSC and the mobile just did not stop restarting, even after downloading and reloading it, I deleted and formatted absolutely everything and I could not use the mobile normally ... After several tests I realized that it restarted after unlocking, so I deactivated the passwords and fingerprint but it did not work, so it occurred to me to install another launcher and problem solved. I have no idea why this is happening to me, maybe is an error in the internal memory due to a bug in the firmware (?)... Anyway, I had read some time ago that there were similar problems caused by a GPU failure in the Snapdragon models, but I no idea.
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I already use Nova Launcher, so I dont think this will fix my problem. Now its taking more time between rebooting cycles buts its still there.
I guess my last attempt will be to flash a stock ROM and see if it works.

CaioBomani said:
Hello everyone.
I'm currently with an annoying issue:
My Samsung Galaxy S9 (non-rooted) is randomly rebooting only while idle.
Whenever I'm charging, playing or perform any interactive activity, the phone works as it has been working for the past 2 years.
As soon as I left it idle for a while, it simply reboots. Usually do not take more than an hour for the reboot to happen.
Already performed a facory reset, cleared cache, force shutdown (power + volume down), worked on safe mode and nothing seems to lead me to the root cause.
It started on tuesday (December 29th @2020).
Thanks in advance,
Caio
Click to expand...
Click to collapse
reflash firmware via Odin. gert FW(firmware) from sammobile.com/firmware and use SamFirm to download, as it downloads 4x faster than from thr site directly. When flashing, use the HOME_CSC vs just the CSC file, as the csc factory resets whereas home_csc keeps your files and settings etc etc. If that doesnt fix it, you have a hardware issue(IMO, at least, and ive been rooting samsungs for a decade). If you have a hardware issue, id get it as good as i could and use the trade-in specials sammy has going

Related

[Q] Sudden death from the newest stock?

I had liquid smooth installed on this phone with cwm before and it crashed and I managed to set my phone back to the newest version but it had no keyboard and it crashed randomly and the bootloader sometimes wouldn't work properly.
Now I finally used kies to recover my phone to stock tmobile rom but the bootloader will sometimes crash during and my phone dies about 15 times a day and sometimes it's when I'm trying to open an application and other times it's simply at lockscreen or in my pocket. What can I do to fix?
Please do a factory reset. After that, observe for few days until you can make sure the issue is not repeating. Do Not Restore any apps or backups.
If it does repeat, Re-Flash Stock firmware using Kies.
Perseus71 said:
Please do a factory reset. After that, observe for few days until you can make sure the issue is not repeating. Do Not Restore any apps or backups.
If it does repeat, Re-Flash Stock firmware using Kies.
Click to expand...
Click to collapse
I tried the factory reset as well as dalvik cache wipe and within a couple hours without installing anything it was still crashing already. After a day I tried reinstalling using kies and it had less frequent crashes but they kept getting more and more frequent so now it is bad once again.
Even the bootloading screen crashes half the time after 6 or so seconds.
At first I thought maybe it's my power button that is a little funky because sometimes I press it and it double presses instead and then lightly tapping it can bring up the option to turn off phone, but I've seen my phone crash just from opening the messaging app and so I'm convinced it's some other issue.
Any other advice? I was thinking of install a custom rom from a 4.2 version of android just because 4.3 seems to be failing with both roms I've tried
Check if your power button is really flasky. Could be hardware issue based on what you have described.

Note 3 keeps on black screening/freezing/random reboots

Hi everyone. I have a sporadic problem with my vanilla note 3 from t mobile. Its a totally random occurrence but sometimes it will freeze(loose all input functionality) sometimes it will just stay black screen(no input taking) and usually (not always) it will reboot itself after this happens(sometimes a battery pull is required). Is this a memory leak issue? Thanks for any help. Sometimes it will run fine for a week or 2 and then all the sudden it will start acting up.
Was it rooted? I had a similar issue before mine was rooted, some of the system load programs that I didn't use would start up and then grab all resources. ..
Mine was doing the same thing while rooted with towelroot. Even after I unrooted it was doing the same thing. I didn't try a factory reset, but T-Mobile is sending me a replacement phone.
JimSmith94 said:
Mine was doing the same thing while rooted with towelroot. Even after I unrooted it was doing the same thing. I didn't try a factory reset, but T-Mobile is sending me a replacement phone.
Click to expand...
Click to collapse
no it was never rooted and I cant get the bloatware off if its not rooted right?
same problem
im running dompop 3.5. about to install .4. but i have not been able to add any lockscreen except swipe. when i try another it unmounts my external sd card. if i reboot my phone it will reboot until it gets ready to stop doing it. some times it loads and says something about system ui not loading and asks me if i want to wait or push ok. freezes and reboots when it wants to. goes blank. i have factory reset it, fised permissions, and re flashed updates and rom clean and dirty. still does it. someone please help. phone is only a year and some months old. also my nandroid backups wont work. they are not all partitons or they just plain fail.
craigo198 said:
Hi everyone. I have a sporadic problem with my vanilla note 3 from t mobile. Its a totally random occurrence but sometimes it will freeze(loose all input functionality) sometimes it will just stay black screen(no input taking) and usually (not always) it will reboot itself after this happens(sometimes a battery pull is required). Is this a memory leak issue? Thanks for any help. Sometimes it will run fine for a week or 2 and then all the sudden it will start acting up.
Click to expand...
Click to collapse
If it was my phone I would do cache wipe first, if still no go then full factory reset and I would then reinstall most important programs first.
Restarting phone every few days is not a bad idea on it's own and BTW when was the last time you cleaned garbage from it?

Random reboot?

So, I've had the premium for almost 3 weeks now. On the second day it crashed whilst I was listening to music +browsing in chrome. Thr screen turned inky and then turned off. Since then I haven't had anything similar happen, but I have had 1 or 2 reboots. Are these signs something could be wrong with my phone? I have like a week to get a replacement. It's rev 2, other than this I have no complaints.
Try to remove cach in recovery mode, maybe that will fix your problem. If not let me know
This has been happening to me as well and actually results in boot loops. Since I have Liveboot, I can see the dmesg output. It says "Failed to start system services. Invalid abi: ABI" or something like that. I'm RomAur so maybe that has something to do with it?
It has happened to me 3 times this week. Also RomAur 1.1. It seems to happen when i am heavy multitasking, definitely related to chrome I think.
I'm completely stock... I use chrome as my main browser. The last time it happened it froze on wake whilst it was charging... The first time I was listening to music and doing something else which I can't recall. The phone has 3gb of ram so I don't really clear my recent apps as often as I did on my S4. It happens once a week on average for me. Cache wipe didn't do anything.
You could've easily gotten a faulty device. A but load of hardware issues can do that and I would advice you to do a factory reset, update to the latest F/W (flash it if not available in ur region), see if it happens again and if it does - get a replacement
Gd luck
If you're totally stock this might not help but I narrowed my problem down to xposed being unstable as crap on mine at least. Hasn't happened since I went back to stock fw (using. 200 generic FR). But I tried to install xposed and I got the three light reboot immediately.
TheImmutable said:
If you're totally stock this might not help but I narrowed my problem down to xposed being unstable as crap on mine at least. Hasn't happened since I went back to stock fw (using. 200 generic FR). But I tried to install xposed and I got the three light reboot immediately.
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Click to collapse
exactly like that on my z5 . when i flash the xposed uninstaller , it doesnt randomly reboot, but when i flash xposed , it does.i was thinking of flashing .200 ftf and then flashing xposed from the beggining (before i install any apps ) to see if it helps , but you said you did it??

Robin randomly rebooting

Anyone have issues with their nextbit Robin randomly rebooting?? I'm on stock 7.1.1 and it reboots on me multiple times a day... Tried a hard reset and clearing Android cache nothing helps!! Even did a factory reset and the problem is still there... It's totally random not app specific I'm not sure what to do...... Thanks for the help!!
Gymguy said:
Anyone have issues with their nextbit Robin randomly rebooting?? I'm on stock 7.1.1 and it reboots on me multiple times a day... Tried a hard reset and clearing Android cache nothing helps!! Even did a factory reset and the problem is still there... It's totally random not app specific I'm not sure what to do...... Thanks for the help!!
Click to expand...
Click to collapse
unlock bootloader and flash last factory image;
good luck:fingers-crossed:
Gymguy said:
Anyone have issues with their nextbit Robin randomly rebooting?? I'm on stock 7.1.1 and it reboots on me multiple times a day... Tried a hard reset and clearing Android cache nothing helps!! Even did a factory reset and the problem is still there... It's totally random not app specific I'm not sure what to do...... Thanks for the help!!
Click to expand...
Click to collapse
I'm not doubting you, but are you actually seeing it reboot? I had another phone do the same thing on Nougat, but it was only "acting" like it was rebooting. I would put it down and after 10 minutes it would say I have to enter my pin after a reboot. I haven't experienced it on the Robin (yet), but the only fixes I found that work were a full wipe & reinstall then installing one piece of software at a time from my Google Library or installing a custom ROM.
Sent from my Robin using XDA Labs
I'm going to definitely try unlocking the bootloader and a reflash maybe even try a different image . Yes it is most definitely rebooting, seems if memory get full having to many apps open it reboots, I've had it reboot multiple times when I was actually using it, during Google maps, chrome and even Facebook.. I've even tried deleting certain apps but it still reboots randomly....
Bumping this, because we have one doing this now. It's been fine up until probably a couple weeks ago. Seems to be under moderate use. Wife's phone. I've seen it happen, too. It locked up, wouldn't respond to any input, then it did a full reboot. She says it happens at least once a day.
Using LOS 14.1.
This could be due to battery degradation.
Happened to me too. Stock rom. Reboots 3-4 times a day. Now all of a sudden it got stuck in an endless reboot cycle. I posted about that in another thread
Now mine is doing it, too. If it was the battery shouldn't it show with the discharge rate? They can show a full charge and still do it. Can even do it while charging. Mine just now did it while charging. Didn't get hot either. Just locked up and rebooted.

Nexus 5x randomly restarting

Hello! I am going to describe my issue with 2 years old nexus 5x which is restarting randomly.
It all started a couple of days ago when my phone started to ask me to enter PIN code. That happened randomly. After entering the code my phone worked completely ok.
But yesterday it started restarting on its own. The restart happened once, than I suddenly got a message before loading screen saying: "Your device is corrupt. It can not be trusted and may not work properly".
Today my Nexus restarted around 10 times. These restarts do not depand on phone usage, since it is restarting randomly (when charging, when not charging, when using it, when screen is off).
I decided to clear cache partition factory reset it and update apps. Unfortunately that did not help, since my phone is restarting even more frequently. Normally it freezes for 5 seconds and than restarts. Sometimes I still get the message: "Your device is corrupt...", but not always.
My Nexus has not been modified (it is not rooted and it is running android 8.1 with november security patch). Also apps have been installed only from play store and not from unknown sources.
I would really need your help. Has anybody experienced any similar issues or does anybody know what could cause the restarting?
Thank you in advance.
@tic_tac7: probably it's a conveniant variant of BLOD. So save everything important on another storage immediately.
This message comes from bootloader. Because the reboots happen also during standby, it's imo useless to flash a kernel which lets the big core sleep, but that's a misty guess. Nevertheless you could try the latest ABC-Oreo (needs TWRP by ADB) without anything more for testing. If reboots are going on > bin.
rp158 said:
@tic_tac7: probably it's a conveniant variant of BLOD. So save everything important on another storage immediately.
This message comes from bootloader. Because the reboots happen also during standby, it's imo useless to flash a kernel which lets the big core sleep, but that's a misty guess. Nevertheless you could try the latest ABC-Oreo (needs TWRP by ADB) without anything more for testing. If reboots are going on > bin.
Click to expand...
Click to collapse
Thank you for your response. Is installing a custom rom the only possible soultion?
No. It's no solution. It's a vague trial.
tic_tac7 said:
Thank you for your response. Is installing a custom rom the only possible soultion?
Click to expand...
Click to collapse
If you are original owner of phone for up to 30 months, go here and let LG fix (or attempt to) the phone. Mine required two repairs. If you are not in the US, check with LG support in your country.

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