S25 screen flickering after update to One UI 8.0

[Kardok]

So, I have updated my S25 last night to one Ui 8.0 and after that I realized that the screen won't stop flickering when I lock the phone, it endlessly turns on and off. I've tried every possible recommendation I've found (wiping cache, disabling adaptive brightness, etc) and nothing works, anyone else having this same issue that could give a hand?

Thanks in advance. 

[Tourbillon De La Vie]

Does it happen in safe mode? 

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

Contact Samsung support via Members app and let them deal with it 

[RobertThunell]

Yes, new Phone out of the box. Have tried with safemode same problem. Any way I can downgrade the OS version.

[Kardok]

Update: problem solved. I had to perform a "factory data reset" and re install all apps one by one (tried making a restore from backup but this ended causing the same problem again). Apparently one of the apps was causing a conflict with the system update (although I never knew which was), But I did realized that there were some old apps that I had installed that didn't even exist anymore, perhaps this was the problem. 

[keydo]

Im having the same problem on my s25 ultra after i updated one ui 8. And im getting the same flashing when locked. Its draining my battery. Its a joke, i dont wamt to wipe my phone, i have loads of stuff i need. How do we revert back????

[Marshy73]

I had this same problem with an 3 month old s25. I'd imported all my apps etc from old to new phone. (Never had an issue with old phone s20). S25 kept flashing on and off and automatically turned to safe mode. No issues in safe mode. Didn't want to do a factory reset due to all the data I had stored. Tried to solve the issue myself but had no luck. Complained to phone provider and they sent me a new phone. This time I didn't transfer apps etc across, I downloaded them individually. No issues with new phone until I received a text from a friend and the phone started flashing on and off again. I deleted the text and the phone reverted back to normal. Another text was received from the same sender and the phone started flashing on and off and into safe mode once again. Deleted the text and the contact this time and the issue has gone away! No idea if it's coincidental or not but the issue has never happened since.