Sorry for the awful sound quality!!
I repaired my mom’s hearing aid and saved her a lot of $$$.
She complained about intermittent fails, until it stopped working completely.
I found that the wire was torn, so I took it apart and soldered the cable back (with a short extension to make it more comfortable).
You need somewhat steady hands and be delicate on the cables. the wires are so thin that this aid is bound to break (and be fixed) again..