Chosen Solution

the phone has developed a behavior whereby it does not ring at all, you can hear nothing whether attending to both incoming and outgoing calls, furthermore the normal sounds made when the phone power off and on no longer exists.

Ok if its just the earpiece that isn’t functioning you can find a replacement on eBay. If the phone’s speaker and the earpiece are both non-functional there may be an issue with the logic board. Please give us more details about you phone, any damages or encounters with water will help us answer you problem as best we can. -Varsity