Wire disconnected from connector to motor controller

Just wanted to post a solution to a problem I encountered the other day:

On cleaning the inside of the board, i accidentally dislodged one of the wires to to the 5 pin connectors to my motor controller. See picture attached.

The wire was snapped off the pin.

To fix this, I used:
-Micro screw driver (or you can use a needle/pin like the Apple iphone sim card insert pusher)
-Soldering iron
-Solder (tin/lead will be fine).
-Knife (or a small gauge wire stripper)
-(Optionally wire holders/clamps/hands to help hold small wires)
-(Not required but highly recommended- safety glasses, wet sponge to wipe excess solder)

Steps i did:
-Used the knife to strip an extra 1.5mm of the casing to expose more wire - all strands need to be exposed. I simply rotated the knife around the wire casing then after scoring around the case, I pulled off the small casing bit to expose more wire.

-I used a micro screw driver (the smallest i had, but you could probably use a needle or pin) to lift the the flap of the connector. The flap is what i refer to as the square opening in the 5 pin white connector and it is the white plastic section that juts out to hold the female pin. I then tilted the connector (whilst holding the flap with my screwdriver) back so that the female pin falls out. The female pin is the metal element that the wire is meant to connect to (sorry don't have pics). The wires are meant to be crimped to this female pin but i didn't have a crimping tool so instead i decided to try to solder the wires to the female pin.

-After securing the female pin and threading the wires through the hole of the female pin above where the wire is meant to be crimped, i soldered the wires to the female pin area ensuring not too much solder is placed on (so it doesnt make putting back the female pin into the connector difficult. First time soldering so i relied on this video to help:

-I then gently using the screwdriver pushed the female pin (soldered to the wire) back into the connector until it clicks and the flap holds the female pin again.

I did notice that you could probably use a bit of electrical adhesive afterwards so the wire casing is better connected to the female connector but i didn't have any on hand.

Tested the board and it works fine.

Again sorry for no pictures, but just letting anyone who has had this issue know that you can fix it with a soldering iron.

Cheers,
Alex

 

Nice thread, I had the same problem and pretty much came up with the same solution, the only thing I would add is that its a good idea to add a little bit of hot glue the help hold the wires to the plug in the future.

 

Nice work, Pity the board is made from such cheap parts.