For battery health use recommended charger, otherwise if you use charger other than provided charger may work if supports (if your mobile does not support specific charger, you will receive message " Does not support charger") But this may cause batt...

Samsung ma officialy call recorder nai. May be it was in some devices but after update, call recorder is no more available.

Apki baki devices(laptop ya kisi aur ka phone) esa behaviour nai show kr raha!

Try format the phone.This may caused by some installing unknown applications.

Is Option turned ON?