I have an iPhone 5 which I jailbroke with Evasi0n so that I could install BTNotificationEnabler. Something has gone wrong and bluetooth is no longer functioning correctly so I need to restore. I am on 6.1 (10B143) according to general>about. I have downloaded both the GSM and GSM+CDMA files and am using iPhone5,2_6.1_10B143_Restore.ipsw to restore. I have tried all the various guides such as: http://www.greenwavetech.co.za/fix-...utm_campaign=fix-ios-6-eligible-update-errors http://osxdaily.com/2011/11/03/fix-...sted-build-error-in-itunes-when-updating-ios/ and there is no gs.apple.com in my hosts file. I have downloaded TinyUmbrella and the "Set hosts to Cydia on exit" is greyed out (unchecked) so I can't select that. I've searched for a few hours and can't see any solutions - any ideas how I can restore this to a stock factory 6.1 install, getting around the "Device isn't eligible for the requested build" message?