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Original topic:

Random restarts

(Topic created on: 01-10-2021 08:02 PM)
A_Google_user
Journeyman
Options
Galaxy S21 Series
Hi all, I recently got the s21 ultra.. what a great phone 👍  However, about 2 weeks ago it started to restart itself at random times of the day/night which is annoying, especially if I'm on a call or filling in an online form for something!  Is anyone else having this issue and do you know how to stop it from doing this?
8 REPLIES 8
DaveyxG
Explorer
Options
Galaxy S21 Series
Go to device care click the 3 dots top right of the screen then click automotion to check if auto restart at set times is turned on if it is turn it off
BandOfBrothers
Superuser II
Superuser II
Options
Galaxy S21 Series

Thats not good @A_Google_user 

 

As a process of elimination can you put your phone in Safe Mode.

https://www.samsung.com/uk/support/mobile-devices/how-to-start-my-galaxy-device-in-safe-mode/ 

This will help to determine if an app is causing this.

If it continues in safe mode then clear the phones system cache files.

Clear your System File Cache vai the instructions in the Samsung Link. You may need to hook upto a computer or insert your headphones to get to the recovery menu. https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ 

As a last resort back up and factory reset.

A Samsung Experience Store  / Samsung Service Centre can take a look at your phone.


Current Phone > Samsung Z Fold³ 5G.

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A_Google_user
Journeyman
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Galaxy S21 Series
Cheers, tried that a few days ago but it was off.
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A_Google_user
Journeyman
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Galaxy S21 Series
Thanks.. I put it in safe mode yesterday and it seems to have sorted it out, no restarts for about 16 hours now!! When I came out of safe mode it had removed my theme, I think maybe it was that causing the issue 🤔
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BandOfBrothers
Superuser II
Superuser II
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Galaxy S21 Series

Yes that's sounds like the culprit.

Safe Mode is such a good troubleshooting tool.


Current Phone > Samsung Z Fold³ 5G.

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A_Google_user
Journeyman
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Galaxy S21 Series
Update: nope that hasn't fixed it, its still resetting several times day and night!
nico81arg
Explorer
Options
Galaxy S21 Series
Same problem here... dealing with customer service it doesn't help... the options so far are send the phone for 2+ weeks to repair (who needs a phone in 2021 anyway) or call a store(who never answer the phone) to have the phone repaired in store... BTW the website to book the repair doesn't work either... 🙃
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A_Google_user
Journeyman
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Galaxy S21 Series

I was lucky enough to still be within the 30 day purchase period so have now changed my handset for a new one.. fingers crossed this ones ok (so far so good)🤞 I tried absolutely everything with the other 1 and nothing worked. It started resetting all my ringtones and other settings back to default everytime it restarted which was really p*ssing me off!
I even messaged Samsung on twitter and they wouldn't acknowledge the issue, even though its well documented in all the forums I've looked in! (Just wish I'd looked in them 1st before buying it!)