I have installed many SmartXX Ver 2 mod chips in the past. I am now trying to install a SmartXX Ver 3 on a 1.0 Xbox. I can't find any instructions. So I broke off the little D0 tab, installed a pin header and connected the D0 line per the Ver 2 instructions. It won't work. It just frags. As soon as I disconnect the D0 line the Xbox works as normal. I have double and triple checked my soldering. I have soldierd the D0 line directly to SmartXX, by passing the connector. I have used the connector and soldiered the black ground connection to the board and connecte the blue D0 wire
. Nothing seems to matter. I am not a newbee. I have been doing this for 3 or 4 years. I must be missing something in the installition procedure, that I do not have.