Screen lock zflip4

[mimms]

Since updating my z flip 4 my screen often won't unlock, making the phone difficult to use. I rely on my phone for work and have only had this issue since updating. 

I've tried diagnostics, this uncovered no issues. Any help?

[Fiona26]

You could try wiping the phones cache partition. Look up a video on how to do this on the Z flip4. You can also go to support in the members app. Send error or feedback in case it's a bug in the update that needs a fix.

[BandOfBrothers]

Hello @mimms 

May I welcome you to the Samsung Community Forum Section for Uk and Eu Members 👋 

Try a forced reboot by holding down the volume down key and power button simultaneously for more than 7 seconds to restart it. When your phone resets, you will feel it vibrate.

Safe Mode  > https://www.samsung.com/uk/support/mobile-devices/how-to-start-my-galaxy-device-in-safe-mode/ turns off downloaded apps and themes etc which may highlight an app or theme that's causing conflict. Alternatively long press the power off button and then long hold on Turn Off to get to Safe Mode. 

If all else fails then last resort is a back up and factory reset. 

After that a Samsung Service Centre or Samsung Experience Store will need to look at your phone. 

https://www.samsung.com/uk/support/repair/