I have tried to update my DNX7210BT car multimedia (radio, tv, navigation) system fom Kenwood. I followed all the instructions from Kenwood's website, as the update is done via USB stick. The updated started as expected, but after 20 minutes reported "Update error, remove USB stick". I complied and the screen now read "Updating software, insert USB stick", and this continued a couple of times, before I gave up. The device does not work anymore, whenever I turn it on I get the message "Updating software, insert USB stick", and I just can't get it out of this mode.
My question is, does anybody know how to reset this device, to some sort of known state, from where I can perform a controlled repair action, and how to get it back to working condition?
I have tried via the Kenwood website, via the distributor who sold me the device, and I don't seem to get any usable answers.
I know I can drive my car to the dealer, and just ask him to fix it, but how long will that take, and I will be without a car for an unknown period of time.