Important: This device is designed to be used with a mini SIM card only. Use of incompatible SIM cards may damage the card or the device and may corrupt data stored on the card.
Note: Switch the device off and disconnect the charger and any other device before removing any covers. Avoid touching electronic components while changing any covers. Always store and use the device with any covers attached.
If you have a second SIM, slide it into the SIM2 slot. Both SIM cards are available at the same time if neither of them is being used, but while one SIM card is active, for example, making a call, the other may be unavailable.
Press and hold the power key.