I updated my iPad from JB 8.1 to 8.4 and immediately jailbroke with no problem using Taig 2.2 and iTunes 12.0.1 on Windows 7 in VMWare. I tried to jailbreak 8.4 on my iPhone and kept getting 1101 (iTunes version) and 1005 (turn off Find My iPhone) errors. Upgrading to iTunes 12.2, downgrading to iTunes 12.0.1, and even trying the Apple Driver Fix didn't work. I'm consistently getting stuck at 20%. My iPhone still works fine after about 2 hours of failed jailbreak attempts. Any ideas on a fix? I'm thinking of waiting on Taig for Mac.