The microphone on these seem to die easily.

Ok so for those struggling with this issue, i took the little rubber cover off what i found out to be a surface mount condenser mic 6c03 1w22. I then put the 2 boards together with the push on pin connector but didnt screw anything up. I then went through the sync process and held the circuitry to the homebase... Successfully added!! It is the mics that are faulty here and it may well be that you would still have audio issues trying to hear outside, or maybe not.. 🙂 Ill keep it posted. Ive pressed on the pads of the mic incase they're loose, not going to try resoldering, only if i was replacing it and i only found similar mics online, not the exact one.