I have bought M31 on 27th May n it's getting problematic. The phone gets over heated, takes reallly long time to charge completely. it gets restarted automatically n most of the time while using the phone gets switched off n gets hanged then n there. even wen the phone is not in use any app gets strt on it's own ... most of the time camera gets on of it's own. can anyone please suggest me what should I do?