Introdução
If the keys on your keyboard are unresponsive or damaged, remove the keyboard for cleaning or replacement.
O que você precisa
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Flip the 4520s upside-down with the front toward you.
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Push the two latches below the battery inwards at the same time.
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Use a Phillips #1 screwdriver to remove three 2mm screws where the battery was located.
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Use a Phillips #1 screwdriver to remove the two 7mm screws located on either side of the keyboard panel.
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To reassemble your device, follow these steps in reverse order.
To reassemble your device, follow these steps in reverse order.
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