My Galaxy a21s proximity sensor doesn't work while on call what to do

[kartikjain30]

Whenever I m on call my screen doesnt turn off what to do ??

[visheshthehacker]

Try factory reset your device,If work pls accept as solution

[kartikjain30]

No I never and my phone is in warranty

[kartikjain30]

Sometime it auto restart while playing free fire while my auto restart is off

[Samsung_Support2]

Dear Samsung Member,

Greetings from Samsung Customer Support!

We would request you to register your concern in Samsung Members Application. So, that our concern team gets back to you as soon as possible.

Please follow this path to register your concern in Samsung Members Application (Open Samsung Members Application > Get help > Send Feedback > Error report/Ask questions).

Note. please attach the error log file within 15 minutes of the error occurred.  

Thank you for writing to Samsung.

Warm Regards,
Samsung Customer Support