1. Press the small hole next to the card slot with the card fetching needle. Turn off your cell phone.

2. Take out the card slot after separating the rear shell.

3. Insert the mobile phone card into the memory card slot according to the icon style, align the metal contacts on the mobile phone battery with the metal shrapnel in the battery slot, and push the battery in parallel.

4. Press down the back cover according to the shape of the phone body or slide the protrusion into the phone body by hand, and press and hold the power button for a long time to turn it on.