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 and replace it if it has become damaged.
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.