Most time I open an app and the phone screen turns off like I am covering a sensor I have to press power button for it to come back on most times it just restarts what could the problem be?
TRY THESE STEPS........
1. Clear Wipe Cache Partition.
Steps to perform.
a) Turn off the device.
(Connect with type C cable/type C earphone only for Android 11)
b) Press and hold the Volume Up key and the power button.
c) When the Android logo displays, release all keys.
d) Press the Volume down key to navigate and select "Wipe cache partition".
e) Press Power key to select. When the wipe cache partition is complete, Select Reboot System.
f) Press the Power key to restart the device.
2. go to safemode and observe is there same issue in safemode too
if not then problem may due to other downloaded apps
and if same issue in safemode then try to visit service centre
steps to turn safemode;
long press on power button>
long press on power off option>click on safemode >your mobile will restart and turn into safemode.
Keep in mind that in this mode only inbuilt system app will work
Meanwhile send feedback to Samsung by using get help section
GetHelp>>SendFeedback>>ErrorReport/AskQuestion>choose appropriate section....
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Greetings from Samsung Customer Support!
Please register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).
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Samsung Customer Support