Align the notch of 3G module with the notch on Mini Card slot. Then insert the 3G module into the Mini Card slot at 20 degree angle.
Gently push down the rear side of the 3G module until the two screw holes on the module have been aligned and seated on the mounting holes of the board. Then secure the 3G module with two 6mm screws.
The onboard SIM card slot is automatically enabled when the 3G module (without built-in SIM card slot) has been installed in the Mini Card expansion slot.
Push back firmly the SIM card slot to unlock and open. Pull up the slot and place the 3G SIM card.
Note
Ensure the angled corner of the SIM card is placed in the correct way before closing the slot.
Gently close the slot by pulling down the slot containing the 3G SIM card, and then carefully lock the SIM slot.