Build Instructions

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• 1

  Step 1

  Take off the faceplate, remove all the batteries (especially the backup coin cell), unscrew the case, and pry it open. You're going to need a torx screwdriver for the case screws. Theres also clips holding the case together. Don't be too worried if you screw them up because they're redundant.

• 2

  Step 2

  Unscrew the circuit board and pull off the RF shield. Be carefull because once you take the board out there will be nothing holding the buttons in.

• 3

  Step 3

  As you can see in the picture, the screen is glued onto the PCB with a thick piece of aluminium between them. Now we have to remove the LCD screen and plate from the motherboard. This is tricky. You must be extremely careful, because the LCD is made from very fragile glass. It will chip or crack very easily. Also be careful not to cut or dislodge the ribbon cable. If either the screen or ribbon cable is broken, it cannot be fixed. There is no hope. You're calculator is dead. The end.

  Begin by using a knife to pry the aluminium plate off of the motherboard. Be patient and take your time.

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