Please solve m21 froze automatic switch of

[kdrana]

Screen frozen suddenly and automatic restart so many time please solve that problem i,ll send so many time logs

[xKiller]

Check this if you're phone is having frame freezing

Free up some space if the device space is full
Clear background application
Use the samsung inbuilt anti-virus to remove unwanted or damaged items in ur phone

[kdrana]

I do reset phone after that no change