Repair detached pins by resoldering them with a soldering iron. 用烙铁把脱落的引脚焊接起来。

I re-soldered a broken wire in the handset. 我把手机里断了的电线焊接好了。 More examples

I was confident that when the circuit was resoldered, the motor would work again.

To repair the break, either get a new cable or cut into the cable and re-solder it.

I fixed a hole in the petrol tank, put in a new resonator, and had the radiator resoldered.