Step 1: Gather Materials
Resistors that match your LEDs
Any transparent, colored Gameboy Advance
Tri-Wing Screwdriver OR small flathead screwdriver
Fine Sandpaper (400 - 500 grit)
Two LEDs (any color) (preferably low voltage)
Hot glue gun
Heat shrink tubing
Step 2: Remove Gameboy Case
Step 3: Cut Hole for Switch
With an Xacto Knife:
Start by gently scoring the case of the Gameboy Advance in the spot you wish to place the switch. There tends to be more space on the back, to the left of the battery compartment. Keep cutting until you cut all the way through. This step may take a while, but it's worth it for a clean cut. If your switch needs to be screwed in, drill the holes for the switch after cutting the hole for the switch.
With a Dremel/Rotary tool:
Start by attaching an appropriate cutting wheel to your dremel/rotary tool. As previously mentioned, there tends to be more space on the back, to the left of the battery compartment.Slowly cut an appropriately sized hole in the plastic.
After cutting the hole, you can place the switch into position, and screw it in. You can also just glue the switch into place with epoxy.
*Cut the hole a little smaller than needed. If you need the hole to be bigger, you can remove extra plastic later.*
After cutting the hole for the switch, be sure to clean any extra plastic out of the case before proceeding.
Step 4: Diffuse LEDs
Step 5: Remove PCB
Step 6: Place LEDs Into Position
After soldering the LEDs together, you will have to solder a black (color optional) wire to the negative (-) end of the LED closest to the battery compartment, and a red (color optional) wire to the positive (+) end of the LED closest to the battery compartment. After attaching the wires, you can screw the PCB back in, followed by attaching the ribbon cable from the screen to then PCB. To do this, insert the ribbon cable into its holder, followed by pushing in the gray/brown pegs on either side of the holder.
After placing the LEDs in their desired locations, you can hot glue them in place for added strength.
If you cannot fit the LEDs and/or their wires into the case, use a dremel/rotary tool to remove excess plastic.
Step 7: Solder Switch
the wires coming from the switch to the battery terminal marked BT+. Solder the other wire coming from the switch to the positive end of your LED circuit. You can tell the positive from the negative end on an LED, because the base of the LED is flat on the negative side, and the longer leg is usually positive.
After wiring the switch, take another wire and solder that to the negative end of your LED circuit. Solder the other end of that wire to the battery terminal marked BT-.
Before proceeding to the next step, close the case, but do not screw it together yet. Place the batteries in the battery compartment, and turn on your LEDs. If they light up, then Congratulations! If your LEDs do not light up, then check your connections and polarity.
Step 8: Reassemble the Case
*I am not responsible for any damage that you may have caused to your GBA*