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2. Installation and charging
2.1 Installing the SIM Card and Battery
Ensure that the golden contact area on the SIM card is facing
downward, and the beveled corner is properly aligned with the SIM
card slot.
2.2 Removing the Battery and SIM Card
Note: Before removing the battery, make sure your phone is
powered off and external power supply is removed. Never
remove the battery when your phone is powered on. Otherwise,
SIM card and your phone may be damaged.
2.3 How to Charge Battery
Press the charger interface and insert the charger into the charging
port of the mobile phone as indicated below: