Problems One UI 4

[Courriertv]

Hello. 

I updated my galaxy s21 ultra to One UI 4, 2 days ago. Since I have many problems, apps shutting down, slowlyness, links that do not open in apps or browser. I tried to re install the apps showing problems, restart... but still.

Is there anyway to roll back and uninstall One UI 4, right now this flagship phone is just like a wreck...

Thanks

[xSteveuk]

Hi,
After an update Clear the cache

How do I clear the cache on my device?

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

How to fix apps that keep crashing or freezing

https://www.samsung.com/uk/support/mobile-devices/how-to-fix-apps-that-keep-crashing-or-freezing/

[Blessed4life]

Hi & if all fails backup your device & do a factory reset.

[Courriertv]

Thank you Steve. Did both but still. 

[AndyAvery]

I have the same problems. I don't want the hassle of a factory reset.. but it is looking like that may be my only way out.

[DianDD]

I am sure if you do a factory reset the phone would work better than ever! It is time consuming but is worth it. I have excellent experience with one ui 4 actually I never been that happy on the previous software

[AndyAvery]

I only got the phone 3 weeks ago....

[Robwall]

I've got the same problem but only on WiFi. When I switch over to data all load fine. Very strange.

[Members_dULJLZA]

my wife and I both have an S21, and since the update, the phones are permanently on Do not Disturb. She has reset her phone, but i am still hopeful of a solution. Has anyone else had a similar problem?