Ive been working on cellphone repairs for about 5 years. Just last year in the beginning of spring I opened my own repair store in my local town and things exploded! i worked from 7am to 11pm everyday for a year straight to manage the work that was coming in. i just recently ran into a legal matter with apple with a customer tried to screw apple over and they came after me. I am taking a break from everything and soon will be getting everything back up and running.
回答“Earpiece with no audio... Board problem”Hello, First off, does the front camera and/or proximity sensor work? those are also on the same cable at the ear piece. To test the proximity sensor would be to make a call and put your hand over the spot right above the ear piece. If the screen goes black then it works if it doesnt then there is something wrong with that cable. Another thing ive seen if is the phone thinks there are head phones plugged in it wont use the ear piece. That can be checked buy turning the volume up and down. When the pop up for the volume level comes itll say if head phones are plugged in or not. If it does then you would try cleaning the headphone jack, or you might have to replace that cable instead. The ear piece or headphone jack cable are very easy to do. Here is the guide to replace the earpiece... iPhone 5 耳机扬声器替换 Here is the guide to replace the headphone jack iPhone 5 尾插更换 To answer you other questions, yes you could replace the board, but that is close to the same cost as another phone. You would lose all your data...
回答“battery replacement”Assuming you are talking about the ipod touch 5th gen then yes you can replace the battery without replacing the screen. Just pull the screen up, unscrew the metal plate and youll have access to the battery. The battery connections are covered by a black cover. just use a pair of tweezers to pull it off. Then just unsolder the battery and put a new one on! its really a lot easier than it sounds iPod Touch 5th Generation Teardown I linked iFixit's guide to the tear down. they tore the cable in the video because "we needed to pull off the soldered battery connections before we could tilt the logic board up to peek underneath." Since you don't need to get behind the board you wont need to worry about that. Again just take off the black cover, 3 solder points and youre all set to go!
回答“Does the 2nd gen digitizer fits the 3th gen iPad Mini”could you use the mini 3 IC board on an mini 1/2 glass? take off the soldered home button from the 1/2 glass and just use the touch ID from the 3? Or maybe do the same thing without swapping the IC boards. just use the mini 1/2 glass and carry over the touch ID from the mini 3 onto the mini 1/2 screen? only reason i am asking is that the 1 and 2 used the same screen and the 2 and 3 are very close to being the same other than the touch ic and gold option. just seeing if maybe the screens could be just carried over.