4).Please insert the SIM card correctly. Cancel the PIN code
5).Do not assembly and disassembly device at will.
Insert in SIM card
3.1 Open the back cover, Put the SIM card into the as picture shows.
1).open the back cover screws
2).Open on the left side of the USB plug
3). Open the back cover
4). Open the PCBA board screw
,Open the back board
5). open the SIM card slot and inserted SIM card
6) refixed PCBA, fixed screw, Fixed back cover and USB plug, Then tighten the
screws
Quick using
3.1 Put the SIM card into the as picture shows.
4