I recently updated my s7 to oreo after that update the heart rate sensor is not working. I also tested the heart rate sensor through Samsung members test hardware option it is showing heart rate status is normal but heart rate is not workingdoes anyo...

it just occured today when i was using my phone after that i restarted my mobile but nothing happened what the issue? what are those black lines

New Update in s7/s7 edge s7:- 67.17mbs7 edge :- 97.11mbIt is march security patch

Dunno how but the battery life is bumped up

Can someone tell me which is the best screen guard for samsung galaxy s7 edge??