I'm trying to jailbreak an old 3G with redsn0w OS X 0.9.15b3 (and earlier versions as well). The issue I'm running into is that after putting the phone into pwned DFU mode, iTunes will detect it and it will change to WTF mode before I can attempt to restore the custom ipsw. How can I get iTunes to stop waking the phone up from DFU mode?