* To insert a SIM card and a Micro SD card in the Huawei E5770, follow these steps:
* Remove the back cover of the Huawei E5770.
* Insert the Micro SD card into the Micro SD card slot.
* The Micro SD card has been inserted.
* Insert the SIM card into the SIM card slot.
* Replace the back cover.
* The SIM card has been inserted.
* To turn on the Huawei E5770, press and hold the power button on the side of the Huawei E5770.