I installed iOS 9 to do some testing for my employer. I set up two step verification during my initial setup of iOS 9. After testing, I reverted to my 8.4 backup to find that I could not log into my icloud account without the verification code, which no longer sends to my phone because it is not iOS 9. I have tried: Reverting to my iOS 9 backup ( It wants find my iphone to be turned off, which I dont have access to because I cannot log in to icloud to access settings). Downloading and installing an ios 9 ipsw, Fails. Trying iForgot to remove or recover, (The verification code/call never comes) Any ideas would be helpful. Thanks!