Apple 10 Things to Know About the iPhone 4s iOS 9.1 Update Published 5 years ago on 11/03/2015 By Adam Mills <>8 / 10You Can't Downgrade to iOS 9.0.2The iOS 9.0.2 downgrade is no more. Apple's plugged up the loophole and you're now stuck with iOS 9.1 if you move to it. You can also drop back down to iOS 8 but you have to be jailbroken to do it. If you're interested in moving off iOS 9, head here.<>8 / 10 Related Topics:AppleiOSiOS 9iOS 9.1iphoneiPhone 4S 3 Comments 3 Comments boss 11/03/2015 at 6:15 pm cheap iphone 4s https://www.kijiji.ca/v-view-details.html?adId=1115512355&edited=true&posted=true&adActivated=true&uuid=44d40634-5102-4cc4-9a2a-061fbfcfe95b Reply Habeebulla Khan 11/24/2015 at 9:05 pm After upgrading to 9.1 there is no sound only phone rings Reply Dr kalpana 02/01/2016 at 4:11 pm Battery life is verrrrryyyyyy less…..even without using anythng bettery is pouring down….net is verrryyyy slow…..scrolling of pages is not smoooth…..typing is not smooth….iam frustated vth my phn bcoz of latest update… Reply Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. This article may contain affiliate links. Click here for more details.