challenging but easily doable if you take your time

Mon problème

although calls were audible they were not as loud as they should be, had to really concentrate to hear the other person.

Ma solution

pretty good all works perfectly now

Mon conseil

be careful with the delicate ribbon assembly and make sure the sensor etc and lock button are securely seated and connected. Double check the WiFi antenna is clean and the screws are tight enough as i had to removed the back again as the WiFi reception was poor after assembling the phone again.