crwdns2915892:0crwdne2915892:0
If you have a faulty battery, replace it.
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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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Remove the battery by holding the latches and sliding the battery away from you.
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crwdns2935219:0crwdne2935219:0
To reassemble your device, follow these instructions in reverse order.
crwdns2915888:0crwdne2915888:0
To reassemble your device, follow these instructions in reverse order.