I installed a used AVIC Z130BT on my car. Everything worked great. I attemted to update firmware and maps and I had a problem. Now I do not have any video output on the LCD, or out the rear output video jack. The HU is functioning. I can play iPod, DVD, audio CD etc. I can load SD and VC works. But I have no video at all out any jack or port. I checked the cables to the LCD, and I have checked everything I can think of. Can anyone help - Please?

Chris

Are you talking about the headunit's touchscreen or an external screen? Also, does "I had a problem" mean there are a failure of some sort during the upgrade?

Both the touch screen and the external monitor are black. The touch screen does respond to touch, but has no video, it's totally dark. Any ideas?

First thing I'd try is a cold reboot - disconnecting the battery. Nothing wierd happened during the upgrade?