Yes, this is what we're confused question, because our QC test this camera use USB cable to connect computers, and then we give engineers a comprehensive testing, it is all OK, then we have adjust the road to the focal length and replace a new battery,Change the heat dissipation silica gel, new USB cable.
Now we know the answer, because 2m power cable only charging power supply(Convenient applied in CAR DVR or monitoring), but it can't transmit data connected to computers.In fact,the failure is so simple
:)
we will refund the 2m power cable cost and the freight to you.of course,pls tell us the freight.