I've ad this a few time.
A few steps to try.
1. pull the negative off the battery for 30mins.
if that fails
2. unplug all plugs from radio sd port and usb and replug them in.
if that fails
it's a new SD port.
A few steps to try.
1. pull the negative off the battery for 30mins.
if that fails
2. unplug all plugs from radio sd port and usb and replug them in.
if that fails
it's a new SD port.
Astra-J 2.0 CDTI S/S
Retrofitted AFL, TPMS, Navi950, BT, DAB, Rear Camera, Infinity sound system, Towbar, Flexfloor & more.
I can do programming and retrofits using genuine GM MDI and Dealer software.