1 Use H2, inner corner disassembly knob
![](https://support.gamo2.com/wp-content/uploads/2024/01/0100.png)
2 Note that there is a transparent gasket on the encoder, be careful to remove it.
![](https://support.gamo2.com/wp-content/uploads/2024/01/0800.png)
3 Remove the 3 screws on the bottom.
![](https://support.gamo2.com/wp-content/uploads/2024/01/0300.png)
![](https://support.gamo2.com/wp-content/uploads/2024/01/0400.png)
4 Use pliers to loosen the screws
![](https://support.gamo2.com/wp-content/uploads/2024/01/0500.png)
5 Remove the 3PIN cable and replace it with a new encode
![](https://support.gamo2.com/wp-content/uploads/2024/01/0600.png)
6 When reinstalling, be sure to press the wires under the circuit board
![](https://support.gamo2.com/wp-content/uploads/2024/01/0700.png)
![](https://support.gamo2.com/wp-content/uploads/2024/01/0701.png)
7 Use the metal gasket and nut to reinstall the encoder, placing the transparent gasket at the top
![](https://support.gamo2.com/wp-content/uploads/2024/01/0800.png)
8 There is a top screw that can be seen inside the knob, which corresponds to the D-head of the encoder shaft for ease of installation.
![](https://support.gamo2.com/wp-content/uploads/2024/01/0900.png)
The most important thing:
When tightening the knob screw, if you feel it being pushed, just tighten it 1/4 turn. Otherwise, the plastic shaft of the encoder will be damaged.