Chosen Solution
I replaced my iphone 4s screen by my self. When I was finished and checked the phone I found out that there was no sound coming out of it at all. No sound from either speaker. (both cameras worked , bluetooth and wifi worked and celural antena worked) I tested it by making and receiving a call and I found out that neither my microphone nor my vibrator was working. I tried rebooting and hard reseting it but it didn’t work. That let me to believe it is a hardware problem. I reopened the phone and made sure all the connectors where connected properly , and they were. (still all those things I mentioned didn’t work) I probably damaged something during the repair. What can I do ? Do I need to replace anything ? By the way I filmed everything with another phone (quality is bad) , so any expert can briefly watch it and maybe tell me where I did wrong. (https://www.youtube.com/watch?v=M7MqRjCG… ) Any answer is welcomed.
First thing I would swap is the charge port. As this controls all the functions you mentioned (minus the vibrate issue)
