How to install Ms4r-X Rapid Fire Mod.

1. Scratch carbon pads.
2. Apply solder.
3. Put the mod.
4. Solder the mod.

1. Scratch carbon pads.

Video

Scratch only places marked in the Red color. See pictures below.
scratch abxy image

scratch left dpad image

Scratch carbon pads image

2. Apply solder.

Video

Picture
Apply solder image

3. Put the mod.

Video

Picture
Put the mod image

4. Solder the mod.

Video

Pictures
Solder the mod image

Solder the mod - close view abxy image

Solder the mod - close view dpad image