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iOS 9 marked the first major version of the iPhone và máy tính bảng ipad software that Apple opened up for public beta testing after a similar trial run with iOS 8.3 last year. As many users have sầu noticed, Apple’s public beta program is continuing with the upcoming iOS 9.1 release available as an OTA (over-the-air) update for non-developer testers, but many users will surely want lớn hop off the beta train và onkhổng lồ the stable release cycle with today’s iOS 9.0 release.

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Quý khách hàng vẫn xem: Ios 9

Several readers have already asked about downgrading from the iOS 9.1 public beta khổng lồ today’s iOS 9.0 release, và while it’s possible it does come at a cost: potentially losing some important data. If moving from iOS 9.1 public or even dev beta khổng lồ today’s official iOS 9.0 release is worth it for you, read on for a detailed guide for doing just that.

Step 1: Ensure iCloud Is Backing Up & Syncing

While there doesn’t seem to be an official path from iOS 9.1 public beta to today’s iOS 9.0 release that keeps all of your data intact, iCloud is mostly version-agnostic in that it usually syncs và backs up important data like contacts & notes for use on older versions of iOS. Using the iOS device that you plan lớn downgrade, go lớn the Settings phầm mềm then iCloud pane to ensure important information like Contacts, Reminders, & Notes are all toggled on if you plan on keeping this information.



Likely due to privacy concerns, Apple has not enabled syncing data from the Health & Activity apps through iCloud so expect lớn thảm bại this information if downgrading. Backing up khổng lồ iCloud does preserve Health và Activity, but you won’t be able lớn restore to iOS 9.0 using your iOS 9.1 backup unfortunately. Still, I recommkết thúc creating a full iCloud backup just in case you have second thoughts after moving down lớn iOS 9.0 and want to recover your data with iOS 9.1. While connected khổng lồ power & on a Wi-Fi Internet connection, go to Settings > iCloud > Backup and ensure iCloud Backup is toggled on. Then tap Baông xã Up Now lớn begin a full backup to iCloud.

Step 2: Disable Find My iPhone/iPad/iPod touch

While you’re in Settings > iCloud, you’ll want khổng lồ disable Activation Loông chồng in iOS 9.1 to lớn save some time when restoring to lớn iOS 9.0. Do this by going to Settings > iCloud > Find My iPhone/iPad/iPod touch (depending on which device you’re using) và toggling off Find My iPhone/iPad/iPod touch which should prompt you for your Apple ID & password used for iCloud.

Note: this may differ from your App Store password if you use a separate tài khoản for iCloud & purchases.

Step 3: Backup Purchases và Data lớn iTunes

Now that we have sầu a few safety nets in place, it’s time to connect your iOS device khổng lồ iTunes on your Mac or PC using your charging cable và put up a few more before downgrading from iOS 9.1 khổng lồ iOS 9.0. After plugging in your iOS device, you may have to lớn give your computer & device permission lớn “trust” each other, then cliông chồng the inhỏ in the top left corner of iTunes for managing your device.

From here you can create a local backup to iTunes & transfer any purchases not already saved lớn your computer. Even if your device is mix lớn backup to lớn iCloud, you can still choose to lớn vì a manual backup here. If you opt to lớn encrypt your backup and protect that file with a password, most passwords from iOS will remain intact if you decide lớn restore to lớn your iOS 9.1 backup in the future.

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This process may take several minutes, especially if you opt to lớn transfer any purchases from your iOS device to your Mac or PC using iTunes. cảnh báo that iTunes will need khổng lồ be authorized with the same trương mục used on your iOS device before transferring purchases.

Step 4: Put iOS Device in Recovery Mode

Now that you have sầu a couple backups in place in case anything goes wrong, it’s time to downgrade from iOS 9.1 to iOS 9.0. iTunes doesn’t allow devices lớn easily rollbaông xã from a higher version of iOS to a previous release, so you’ll need khổng lồ first put your device into lớn recovery mode. Apple offers a guide for putting a device into recovery mode, but it boils down khổng lồ four steps:

Turn off your device và leave sầu it off.Plug in your device’s USB cable to a computer with iTunes.Hold down the trang chủ button on your device as you connect the USB cable. Keep holding down the Home button until you see the Connect to lớn iTunes screen.When you see , release the Home button. If you don’t see this screen, try steps 1 through 3 again.

Step 5: Restore iOS Device to lớn Factory Settings

Once your device is in Recovery Mode and connected to lớn iTunes, you should see a prompt to Restore and Update. Following this prompt will show you the lachạy thử official version of iOS, specifically iOS 9.0 in this case, then begin downloading the full operating system after you follow the on-screen prompts.

You can follow the tải về progress in the upper right hand corner for an estimated time before the install begins.

Once iOS has finished downloading, your iOS device will begin installing the operating system. You’ll notice a progress bar beneath the Apple hình ảnh on your device’s display while iTunes says Restoring iPhone/iPad/iPod touch Software/Firmware.

Next you’ll notice iTunes no longer displays your device as it completes one more cycle of fulfilling a progress bar after a restart. Upon rebooting, iTunes may still prompt you lớn activate your device

Step 6: Restore iOS Device From Non-iOS 9.1 Backup or Set Up As New

Once your iOS device is wiped clean & restored to lớn iOS 9.0, you can either choose to lớn thiết lập your device as new or restore content and settings from an iTunes or iCloud backup saved from iOS 9.0 or earlier. Welcome baông xã lớn iOS 9.0.

Backups from iOS 9.1 will not be compatible và are only used for returning lớn iOS 9.1. Using your computer, iTunes will offer the option lớn restore to a previous backup, or you can start the thiết lập process on your device to lớn choose restoring through iCloud if you have a compatible backup.

Whichever route you take, restoring or starting clean, you can still sign in with iCloud lớn bring bachồng the information it syncs including contacts and notes. The downside here is that not restoring will erase any Health và Activity data not present in an older backup or completely if you start fresh. Note also that many apps including some games will thua thảm data when setting up as new or using an older backup.

Alternatively: Await Official iOS 9.1 Release Later This Fall

If you’ve sầu already updated to iOS 9.1 public beta và decide that losing data isn’t worth the hassle, Apple’s official path for public beta testers seems to lớn be this: continue lớn kiểm tra future iOS 9.1 releases on your device, then update lớn iOS 9.1’s official release when it comes later this fall. There’s no exact date for when iOS 9.1 will be available, but it’s likely it will arrive sầu with the máy tính bảng iPad Pro which is shipping sometime in November. Have anything lớn add lớn this tutorial? Let us know below in the comments!