kenwood dmx7017

Folks have a kenwood DMX7017DABS fited Using android phone Was sort of working and then kept getting An access error of the usb device decected Now get it all the time However phone still charges but no on screen maps Replaced the USB cable Did not help I guess something internal has...

I have the Kenwood Dmx-7017dabs And just bought the steering controls quad lock and interface all original Kenwood parts their part numbers numbers CAW-KIMUN1 and CAW-CKIMVW3 I have connected them all up but I have no function of the steering controls, parking sensor display or MFD...