Introduction
The DC input of the Nokia 3100b is where the cell phone's charger plugs in to. This guide shows you how to access the input.
Tools
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Press the button on the back of the phone and slide the back panel off.
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Remove the battery by pulling it from the phone.
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Gently pull back the small metal frame holding the SIM card into place, and lift open the frame.
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Conclusion
To reassemble your device, follow these instructions in reverse order.