TI-36X Pro Button Replacement

Remove the calculator's protective cover.

Place the calculator face down.

Using a Phillips #1 screwdriver, remove the six 6mm screws from the back of the case and place them to the side.

Start from the notches on the top edge and use your fingers or a prying tool to carefully pry the back cover from the calculator.

Use a Phillips #00 screwdriver to remove the two 7.5 mm screws holding the battery cover to the case.

Use your finger to move the battery cover to the side.

Use the flat side of a spudger to remove the battery by lifting the bottom edge.

After removing the battery, use a Phillips #00 screwdriver to take out the 4.5mm screw directly to the right of the solar panel.

Next, use a Phillips #00 screwdriver to remove the two screws located on each side of the striped ribbon between the two green circuit boards.

Carefully chisel off the 11 circular pieces that connect the lower circuit board to the calculator.

Lift the top edge of the solar panel with a finger and slide it away from the circuit board to disconnect it from the calculator.

Carefully pry the screen out of the calculator with a prying tool or spudger.

Pry the lower circuit board from the calculator by inserting a prying tool between the base of the calculator and the circuit board.

Grab one of the top corners of the gray rubber button pad and peel it off of the buttons.

Locate the button that needs replacement and lift it out of the calculator with tweezers.