15
After charging, disconnect the power, then unplug the charger, so
that the charger no-load.
2.4 How to install & remove the SIM card
The Phone supports two SIM cards. Before doing the following, make
sure the phone is turned off and no charging.
Open the back cover, remove the battery.
Make the golden contacts of the SIM card face down, Card
gap facing the slot gap, and then put into it.
Install the battery and close the battery cover.
SIM card's removal and installation steps are in reverse.