how to know about mobile's warranty period.

how to transfer all secure folder's data to my new galaxy device ?plzz tell me..#galaxy#securefolder #datatransfer

My A51 start restarting automatically and facing many problem related to software since last 3-4 days

my mobile suddenly start freezing and restarting automatically.i don't know what i do, it's very irritatingEarlier it work fine, but now it is happening for 2-3 days.And this happens once in a every 5 minutessomebody please help me

No knox and secure folder for galaxy M30. Is their any probability of its coming in Samsung M30?