S21 issues after installing update One UI 4

[jnaelle]

》Apps keep crashing like Outlook, Yahoo, Facebook, etc.

》Facebook suddenly closes while browsing and I can't open a few posts.

》Yahoo crashes the first time and you need to open it for the second time.

》Outlook won't open at all as it crashes the moment you open it.

》The entire system also runs very slow and stutters alot.

》Battery seems to drain faster, it was fully charged 100% but after a few seconds it became 98%.

》Tried uninstall and reinstall the app from Play Store and Galaxy Store but didn't solve the issue.

》Rebooted my S21 a few times, didn't help at all.

》I read a few posts and factory reset is not really a good solution for this issue. It is not advisable to do this as it is a bit of a hassle and Samsung needs to fix this bug ASAP on their software update.

[xSteveuk]

After an update
Clear the cache

https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/

[sharon0211]

I've had quite a few issues too. Facebook and notes just stop working and can't open news stories etc. Only started after the software update today......

[maverick22]

Do not update.

[jnaelle]

I've already cleared the app cache and cache partition and issue still there. I believe the only thing that can fix the issue is for Samsung to fix the bugs on this update.

[Blessed4life]

Hi this method might be time consuming but definitely works back up your device & do a factory reset.

[siemd74]

You are facing the same problem which I faced some months ago btu you can click here to learn how you can fix this update problem.