I have an iPhone 6 on 8.1 and am having some technical isssues which is preventing me from backing up via iCloud. I can back up via iTunes (which I have done) but want to erase all and restore to see if I can get rid of any corruption that would prevent me from using iCloud backup. Should I just restore and let 8.1.2 install and then JB using TaiG? Doesnt OS version matter when restoring? Little help...thanks.