Phone keeps restarting since update.

[BeckBee86]

I have a samsung Galaxy S21 5G and since the last update it just resets itself. There is no consistency to which app and the apps I've been using I have cleared the cache and the data. 

Any help would be hugely appreciated as it is so frustrating when my phone keeps just crashing when I am using it!

[JAMES4578]

Hi @BeckBee86 

Sometimes 3rd party apps can cause a conflict and should try the device in Safe Mode https://www.samsung.com/uk/support/mobile-devices/how-to-start-my-galaxy-device-in-safe-mode/  If ok there would pinpoint recent third party apps which may be a problem  (if applicable)

If not the issue you may need to clear the cache partition , this deletes temporary cache files (sometimes some can become corrupted)  but keeps your Data intact and is recommended after updates.  

Follow these steps:

1. Turn off the device.
2.  Connect To Computer ,TV USB or other Device, Press and hold the Volume Up key and then press and hold the Power key
3. When the Android logo displays, release both keys.
4. Wait until the Android system recovery menu options appear.
5. Press the Volume down key several times to highlight wipe cache partition.
6. Press Power key to select.
7. Press the Volume down key to highlight yes, them and press the Power key to select.
8. When the wipe cache partition is complete, Reboot system now is highlighted.
9. Press the Power key to restart the device.

If able can also use the Galaxy Apps Booster from the Good Guardians suite, The Repair Apps option in Recovery no longer seems to be available.    https://www.sammyfans.com/2023/07/23/download-the-latest-samsung-good-guardians-galaxy-labs-app/  

[pissedoff88]

My s21 does the same but it only happens after an update. I dont know anything about 3rd party apps etc but my phone only does the restarts after an update so I think it must be a fault with the updates. I wont be buying any more samsung phones.

[ger775]

Today, I had the exact problem. I also have a S21 FE 5G and now my phone is inoperable after an update. Ive already factory reset also. Idk what to do anymore. I blame Samsung fully and now I have to buy a new one.

[rach6297]

My phone keeps restarting, I've bought a new battery, done a soft reset, cleared cache and partition cache and still does it in safe mode. Last resort seems factory reset and doubt it will work

[bsnapples]

This is some BS.  My s**t has froze and restarted multiple times these last few days.  All I read is how horrible Samsung is treating this situation.  You should be ashamed of yourselves Samsung. FK off!!!

[pissedoff88]

My phone still does it and I've been on Important calls and its just restarted the phone during the calls. I've switched off the auto restart settings and it still does it.

[ChrisB_]

I'm sorry to see that people are having a rebooting problem with their S21 phones. If you believe the fault is software-related then I would recommend sending us an Error report.  

By sending us an Error report, our software engineers will be able to receive data logs relating to the problem you are experiencing. This data is anonymised and only held for the duration of the investigation of the report. 

To do this, please click here for a handy online guide that takes you through the process.