what the hell am i doing wrong, I flashed my 360 about 6 months ago, no problem, doing it again with Iprep. got a benq drive, firmware 1.5` and put it on iprep to boot with usb and it comes up with no valid firmware, did I forget a step in the past 6 months.
if you downloaded the latest version of iprep then it should be included.
Remember way back when the Textbook Tutorial was using Iprep 6.06 or something and it said to "update the definitions file"??? Same thing. There is a definitions file associated with iprep. You could just use jungle flasher if you want. I don't use iprep any more but I will download the latest right now and see if it has the right definiton file.