If the phone microphone cable is broken, weld it. The steps of welding are:
1. First of all, you need to carefully remove the outer cover of the wire and gently burn the metal wire with a lighter.
2. Then clean up the burning residue.
3. Solder the wire, that is, apply a little solder on the wire.
4. Continue the wire, weld the wire together, and pay attention to insulation treatment after welding.
If this kind of wire is broken, it can only be replaced, because the wire can not be repaired, only replacement maintenance can be stable use, can be replaced, and normal use is no problem