How to Downgrade iOS 16 to iOS 15 without Losing Data

Way 1: Backup Your iPhone through iCloud

Here are the easy to follow steps to back up your iPhone through iCloud.

• Open your iPhone's Settings. To back up your iPhone via iCloud, tap your profile. It's at the top of the screen.
• Scroll down and tap iCloud. After that, click on iCloud Backup to proceed.

  

• Slide the switch to the right, ensuring it's in the "On" position. Tap Back Up Now. It's at the bottom of the screen.

  

• Once you tap Back Up Now, your iPhone will automatically begin backing up. The backup process can take a while (anywhere from 5 to 45 minutes), so be prepared to wait. This is an automatic process and does not require any additional action on your part other than initially starting it up.

Way 2: Backup iPhone by Using iTunes

Backing up your iPhone to your computer or iCloud is a good idea because it's a fast and easy way to get your iOS version reverted to the old one.

• Connect your iOS device to the computer, then launch iTunes on PC/Mac.
• Click on "Summary" (for iPhone 6s/6s Plus/7/7 Plus users) or "Devices" (for other iPhone models), then click on "Back Up Now".
• iTunes will begin backing up your device immediately.

  

Solution 1: Use UltFone iOS System Repair to Downgrade from iOS 16 without Losing Data

UltFone iOS System Repair is an application tool which allows users to fix various issues on their devices, such as system crashes, virus infections, lock screen passcode and more. It also helps users with upgrading/downgrading their iPhone/iPad on any version of iOS firmware without losing data files or apps installed on their device before the upgrading/downgrading process.

• Step 1Download the software from your computer. Install and run it. After that, use an USB cable to connect your iPhone to the computer. Once the iPhone is detected, click “Start”.

  

• Step 2Now, you should tap on "Deep Repair". Take notice of the appearing instruction before proceeding. Then choose the “Deep Repair” option.

  

• Step 3With device detected, you click the “Download” button to get the newest firmware file. At first, you should back up your data, then you can tap "Repair" button. Wait for a while and Deep Repair will remove all iOS 16 components. And you can see that we are now in iOS 15 version.

  

Here is the video guide about downgrading iOS 16 to iOS 15 without losing data.

Solution 2: Download iOS 15 IPSW File and Downgrade from iOS 16

Step 1: Open iTunes on your computer, then plug in your device via USB cable into your computer. Make sure you have backed up all of your data before proceeding to this step.

Step 2: Select the IPSW file for your device model and version number, then click the Open button. Your selected IPSW file should appear in the iTunes window automatically after searching for it in its directories. Click Restore again if it doesn't appear automatically after searching for it in its directories.

Step 3: Hold down the Option key (Mac) or Shift Key (Windows) while clicking the Restore iPhone/iPad in the iTunes window. Click the Restore button when prompted on the screen.

When you get your device restored, there will be a clean copy of the iOS 15 version. To recover your old texts, apps, and other data on the device, you need to restore from a backup you archived earlier.