Introduction
This guide will require a new solar panel part, as well as some soldering. If you're not sure how to solder, see iFixit's soldering guide.
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Using the #00 screwdriver, unscrew the six, 6mm Phillips screws.
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Use the spudger to pry into the space between the blue back cover and the white body to take off the back cover.
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Using the #00 Phillips screwdriver unscrew the two, 3mm Phillips screws located near the top of the calculator.
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Lift the metal plate from the battery and set it to the side.
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Put the new CR2032 battery in. Never insert a different type of battery!
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Reverse the steps 2 and 1.
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Use the #00 Phillips screwdriver to remove the one 3mm Phillips screw holding the solar panel in place.
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Carefully pull the solar panel away from the calculator, as shown to the left.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.