1.4 You should open the battery cover for fixing SIM card and T card.
(corressponding screws and screw drivers are included in the package), and try not to
unfix the battery to avoid difficult assembly when the package is disassembled. Please
power off to operate when SIM card and TF memory card is fixed. If the battery is
unfixed, please buckle the battery connector into battery holder by something
nonconductive like plactic forceps, and it may cause battery short and damage if use
metals.
2.Product Overview
2.1.
Basic introduction