Many users on Reddit report that iTunes 11.1.5 (specifically the 32-bit version on Windows) is the "sweet spot" for getting p0sixspwn to function.
For iOS 6.1.3 – 6.1.6, an alternative is (latest version) – but it still needs correct iTunes drivers. Another alternative is Old iTunes + Redsn0w + p0sixspwn combination, but that’s more complex. p0sixspwn requires itunes 105 or above
The heart of the issue lies in the evolution of Windows drivers. The 64-bit Shift: Many users on Reddit report that iTunes 11
The most reliable way to bypass this error is to use a specific version of iTunes that contains the necessary legacy drivers. The heart of the issue lies in the
To resolve the "p0sixspwn requires iTunes 10.5 or above" (or sometimes "iTunes 9 or above") error, you must use an older version of iTunes, specifically or 11.4 . Modern versions of iTunes (12.x and above) are incompatible with the p0sixspwn jailbreak tool. Steps to Fix the iTunes Error
: Connect your device and launch p0sixspwn. It should now correctly detect your device and the iTunes environment. Troubleshooting Continued Failures