Included in the parts bag labeled "RVL PMS" is a thermistor. This gets mounted on the Wii motherboard so that if G-Boy overheats due to being enclosed (ex. it's in a backpack and turns on because you forgot to put it in shipping mode) the RVL PMS will power the G-Boy down automatically once it reaches 70°C.

• If you have any batteries in your G-Boy, remove them before proceeding.
• Tin the T+ and T- pads as shown.
• Attach the thermistor between the CPU and GPU as shown. We've held it in place using a few pieces of kapton tape.
• Route the wire down to the T+/T- pads. If the exposed wire is excessively long on the thermistor, trim them a bit.
• Solder the thermistor wires to the T+ and T- pads. Polarity does not matter, so solder any wire to any pad. 

Boot up your G-Boy and ensure the following items work before you proceed to the next step:

• Audio
  • Have the courage to test the headphone jack
• VGA Video
  • If some of your white colors appear purple, turn down the green channel through the LCD's settings menu
• Every button; Boot into the GC+ 2.0 Configurator homebrew app and select "Buttons Test"
  • If the face button pressed are unsatisfactory, return to the "Mounting the Controls" section for more information on how to improve their feel.
• Charging (see the "parts" section of the step for our recommended charger and cable)
• Accessing your microSD through the USB-C port (plug your G-Boy into a computer)
• If you relocated the Bluetooth module and/or MX chip, make sure those work as well.

Take out 6 M2x6 screws from the bag labeled "Hardware". 

• If you plan on relocating the Bluetooth module and/or MX chip, read those sections before completing these last couple of steps!
• Close the G-Boy and insert a screw into one of the screw holes on the back. Using a long phillips head screwdriver, hold the G-Boy closed and fasten the screw. You might need to add pressure for the first couple of rotations to ensure that the screw threads the screw post.
• Repeat this process for the remaining 5 screws

Once your G-Boy is screwed shut there's only one thing left to do - remove the screen protector and start playing some games!