Chapter 3 Insert SIM card
1.
Power off the phone and remove other external power.
2.
Take off the back cover and remove the battery of the phone.
3.
Insert SIM card into the SIM card slot in the phone.
Chapter 4 Install and Remove the battery
The attached Li-ion battery along with the phone can be used after unpacking.
For the first three times, please use up the power and charger it fully for new
battery to perform well.