Introduction
If one or a number of your keys are broken or cracked, causing malfunctions in operation or dangerous sharp edges, use this guide to safely replace them.
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Remove the battery cover.
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Remove the AAA batteries from the calculator.
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Unscrew the six 7.5mm T6 screws on the back case. You will need to use a screwdriver with a long and skinny head.
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Remove the eight (8) 5mm Philips #00 screws on the motherboard.
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To reassemble your device, follow these instructions in reverse order.
To reassemble your device, follow these instructions in reverse order.
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