You need to make sure the LTE card is in there. If you don't, the board will be a dummy rubberized slot and you will be disappointed. All models of the G1 Elite x2 have a cutout for a SIM slot. Have them take the tray out. If it is a white slip, it's not LTE. You can use any charger that supports PD 3.0 or 15w/3A. No Windows Hello.