[Resolved]  Samsung India — samsung m40

It has been 2 months since i have started using my phone. The phones sensor doesn't work at all. Very problematic during phone calls. The camera has already started to detoriate along with the battery. The battery is # even for a phone with 3500 mah of it. It has started to hang without me using it much, the fingerprint sensor has stopped working properly. There is also some problem with the calling properties if the phone as usually i can't hear the person who has called me, i have to call him again, this problem did not exist in my previous phone with the same sim card...