I am in the process of trying to repair two bottom modules. One with the USB problem and one with the microphone problem.
I started with the one with the USB problem. Since I have the module apart anyway, I figure I will be proactive and try fixing the microphone before it breaks.
Due to your experience, I had a few questions regarding the fix. I would appreciate it if you could be of assistance.
Question 1: How did you get the PCB out of the shell? I attempted to pry it out from the top, but I get the feeling it will break or get damaged if I pry too hard. I was thinking of heating it up to loosen the glue and then trying to pry it out.
I was going to put some solder on the three golden contacts as you describe above. However, in your last post you say this fix does not last.
Question 2: Would it make sense to just put a very small amount of solder on the golden contacts? From your picture and description it looks like the balls are large and push out the shield. If you just add a very thin layer of fairly flat solder (not a ball) to the contact, could this maybe make the solution last?
Question 3: You said you used some spring contacts from an old bottom module. Which ones do you mean here? Could you post a photograph of them?
Thanks!