Nokia 6021 User Manual page 21

3. To remove the SIM card, press the SIM card release
(1), and slide the SIM card towards the top of the
phone (2).
4. Position the battery with the contacts aligned to
the golden contacts of the phone. Insert the
battery into the battery slot.
5. Align the back cover on the back of the phone (1)
with a gap above the top of the back cover of
approximately 3 mm. Push the back cover up to
the top of the phone to lock it (2).
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