Now on to the main event. Start by connecting your 3.8mm Gamebit to your Modular Screwdriver. Use the Screwdriver to undo the two Gamebit screws that hold the cartridge together. Once undone, carefully remove the back cover of the cartridge to expose the inner metal shielding.

Now take your Philips-head Screwdriver and undo the two Philips-head screws at the bottom corners of the metal shielding. Remove this metal shielding to expose the cartridge circuit board.

You can now see the Cartridge PCB with the attached Coin Battery, the source of the problem which we will soon fix.

From here, carefully remove the PCB from the cartridge casing. Remove the black plastic shield on the cartridge pins and place the PCB on your workspace.