Introduction
Go to step 1 ↓This guide will show you how to take apart the back panel to replace the keypad contacts.
What you need
Tools
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Remove the cartridge and the yellow tape cutter.
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Unscrew the two 9 mm Phillips #1 screws from the top and bottom.
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First: To separate the top cover from the body, insert a spudger between the two halves.
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Gently twist the spudger until the two halves separate. Do this in multiple spots around the perimeter of the cover to distribute the pressure.
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A small flat screwdriver works for this step. Use on the left and right sides.
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To reassemble your device, follow these instructions in reverse order.