This is a backup of the internal SD card that stores the AVIC-5000NEX firmware; it may or may not work on the 6000NEX, 7000NEX and 8000NEX.

Use this to fix the white-on-black "System Error" message by bunzip2'ing and dd'ing this to an 8GB SDHC card, disassembling the unit, and replacing the internal SD card.