Remove the remaining wires and discard the connector.

Retrieve the connector head you salvaged from the ROG Ally and place it with the row of small white tabs facing up.

Attach the red wires first and glue them in place with an adhesive of your choice (I used this).

Attach the orange/green and blue wires, followed by the three black wires as shown in the picture. Glue them all in place.

Make sure you place the wires in the correct order otherwise your ROG Ally won't power on! Starting with the first red wire in the far right socket, proceed to insert each wire in the same order they extrude from the battery.