GCC Snapback Flex PCB | Install Guide
This is our install guide for our Gamecube Controller Snapback reduction flex pcb. This is the easiest way to reduce snapback on your original Gamecube controller. No trimming or wires are required!
- Soldering iron and supplies (See our soldering guide for complete list)
- Y1 Tri-point screwdriver
Disassemble your controller to the point where the rumble bracket is removed. Further disassembly is not required. See our full controller disassembly guide linked here.
Line up the board
Optionally apply double sided adhesive to the PCB where the flex cable will reside. Carefully line up the flex PCB with the rear connections for the main joystick and press it into place.
Solder the connections
Apply solder to each of the 4 gold contact points. Ensure that the joints are not bridged. If you add too much solder, you can remove solder with solder braid and some solder flux. See our soldering guide for more details.
Configuring the module
You may see a yellow film covering the 8-pole dip switch. This peels off without any issues. Use a plastic tool or a toothpick to adjust the switch positions.
There are 4 values per axes, ranging from 150, 220, 330 and 680 nanofarads.
We recommend starting with a base value of 150 for older controllers. If you have one of the newer Smash Ultimate controllers, you might try 220 or 330. On our module, this would mean enabling switches 1 and 5 for 150 nanofarads.
Switch value chart
As you play with and wear down your controller sticks, you may find the need to adjust the capacitance required to maintain the same level of snapback reduction. If you are experiencing stick drift or other issues, it might be time to replace the stick potentiometers altogether. Stay tuned for a guide on that process!
Test and adjust
Install the rumble bracket and rear shell. Do not install the screws at this time. Take this opportunity to plug in your controller and test. Games like Super Smash Bros Melee are often used to test snapback. This can be done in the main menu or on the character select screen. At the main menu where you can select the game mode, try flicking the stick up or down. If the menu option moves up, then down when you flick the stick up, you still have snapback. At this point, as an example, you may try enabling the switch for 220 nanofarads and disabling the 150 nanofarads. Of course, these values can be combined in any manner to allow for some fine tuning.
Once you are fully satisfied with the feel of the stick, install the 6 rear Y1 screws and you're finished!