Home / Chia sẻ / downgrade iphone 4s ios 9 Downgrade iphone 4s ios 9 22/09/2021 iOS 9 is a revolution in iOS releases, with intelligent features that make your iPhone or máy tính bảng iPad more proactive sầu than ever before, as well as more secure, with the introduction of a number of new security features.Bạn đang xem: Downgrade iphone 4s ios 9Interested? Keep reading for more details.Update: Apple is now urging users of iPhone 4s, ipad Mini 1st, iPad 2nd và iPad 3rd generation lớn be updated lớn iOS 9.3.6, by Nov 3rd, 2019 to continue using their services. You can find the tải về links for the firmware below.iOS 9 Active sầu Firmware:Apple will only be signing two iOS versions at once – the lakiểm tra one và the previous one. With the previous firmware, they stop signing after a week và, right now the below-listed version is the only ( active sầu firmware ).iOS 9.3.6Expired Firmware:The following iOS 9 versions are no longer being signed:iOS 9iOS 9.0.1iOS 9.0.2iOS 9.1iOS 9.2iOS 9.2.1iOS 9.3iOS 9.3.1iOS 9.3.2iOS 9.3.3iOS 9.3.4iOS 9.3.5If you try lớn put one of the expired versions on your iOS device, you will get a Requested Build Error 3194; it will tell you that your device isn’t eligible for the requested build. Keep reading because we will be telling you how you can safely downgrade your iOS version.Xem thêm: Cách Chơi Aoe Trên Win 10 Và Hướng Dẫn Cài Đặt Bản Chuẩn, Chơi Đế Chế Win 10 ProAnd now we’ll dig deeperContent Summary1 How lớn Install iOS 9 Firmware:How to Install iOS 9 Firmware:Before we get busy, there’s a couple of things you need lớn do:First, make sure that iTunes is up to lớn date; you will need it for two methods:Launch iTunes and click Help>Chechồng For Updates If iTunes requires updating, instructions will appear on the screen – follow themSecond, make sure your data is backed up – if anything goes wrong, you will đại bại everything.Third, disable Find My iPhone/ipad tablet and Passcode (Touch ID if it is enabled). These can be switched baông xã on later.All done?Then let’s get inkhổng lồ it:Method 1: Over the Air (OTA)While this is the smallest update, it is not compatible with any jailbreak; if you intkết thúc khổng lồ install Cydia, vị not use this method:Launch Settings > General on your deviceChoose Software UpdateWhen iOS 9 update is found tap Download Tap on Install và leave your device khổng lồ update; when it reboots, it will be on the Hello screen.Method 2: iTunesPlug your device into your computer & open iTunesIf you have sầu two or more devise registered, cliông xã the Summary for the device connectedClichồng on Update>Install Wait; your iPhone or máy tính bảng iPad will reboot when the update is finishedThe Hello screen appears, and you can begin setting your device upLast but not leastMethod 3: iTunes with IPSWCliông xã the IPSW links below that corresponds lớn your deviceConnect your device khổng lồ your C/Mac & open iTunesChoose the Summary for the connected device (only if you have sầu more than one registered)Press either the SHIFT (Windows) or ALT (Mac) key and click Restore at the same time Find your IPSW file và click on it Cliông chồng on Install & iTunes will update your iPhone or iPadWhen its all done, your device will reboot into the Hello screenDownload iOS 9.3.6 IPSW Links:Download iOS 9.3.5 IPSW Links:We’re almost thereHow lớn Downgrade iOS:Looking to downgrade to an earlier version? It isn’t quite as simple as it is khổng lồ update, but it still isn’t difficult lớn do; check out the guide below on how lớn vì chưng it:How to Jailbreak iOS 9:Full step by step instructions lớn install & iOS 9 jailbreak is given in the linked tutorial below.That’s allDo let us know how you get on updating to latest iOS 9 firmware & for more tutorials like this, you can follow us on Facebook.