Thanks CBRK
Mate I have had the thing apart, checked the SD card , still held in place. removed and replaced . no go. Checked the Pixhawk was still held firm, yes it was but removed and replaced , no go.
I have done a factory reset on the Solo and controller, re-paired as well. The controller seams to pair up OK, but the Solo will not respond, Only have the four green lights constant , not changing to 2 x red & 2 x white.
The tablet and solo app can not connect to vehicle.