Notice the PCB board is behind the trigger retainers.

Some controllers use size 0 and others use size 1.

0 will work for both

Some controllers the vibration motor can not be freed from the internal frame without desoldering and resoldering. You do not have to remove from the frame to perform this tutorial. The frame can hang freely from the wires or use a Helping hand.

Take note of which number is on the front of the input board paper PCB. Cause 15 vs 16 are different sizes. They will fit differently inside the internal controller frame