OS and can jailbreak using BlackRa1n ~ BlackRa1n Windows only so far. did you using Windows seven please run Windows XP Compatibility mode. The long-awaited BlackRa1n jailbreak by GeoHot is now available If you're using Windows 7, run BlackRa1n as an admin with “Windows XP. Blackra1n is currently compatible with Windows only — or “all Windows that matter,” in GeoHot's words. I am supposing that means Windows XP, Windows Vista. The software runs on Windows XP, Vista, 7 (32 or 64 bit). At this time BlackRa1n is still recommended for Windows users with firmware and RedSn0w for. blackra1n free download. Get new version of blackra1n. Supported Operating Systems: Windows XP, Windows Vista, Windows 98, Windows 8, Windows 7. Step 4: Start blackra1n app. If you are on Windows 7 or Vista, run the app with “ Windows XP Compatibility” mode by enabling it from the. with a Mac or Windows version of blackra1n. blackra1n is a program that Mac OS X/ Intel, Windows XP/Vista/7 Version RC3 Full Specs. I have tried on a mac book and also on windows xp. Same thing. I am running 3,1 ,2 (7D11) and modem fw The screen on blackra1n. blackra1n blacksn0w geohot's iPhone jailbreak solution.