FP2 Bottom Module: Repair broken µUSB port and or mic

[anon9989719]

Just a link to a relevant topic on relating microphones but the topic is closed, hence

Howto repair the microphone inside the bottom module

As fairphone angel (in Berlin) I have a lot of support cases with nonfunctional microphones in the bottom modul. A lot of users have minimum the 2nd, often the 3rd bottom module. Mostly easily changed by Fairphone support in warranty. But there is a lot of waste (I collect old faulty modules and send them back for recycling). So my questions: Did anyone successfully repaired the microphone inside the bottom module by soldering a new smd microphone? What’s the reason for the highly rate of f…