How To Downgrade iOS 10.3 To iOS 10.2.1 Retaining User’s Data?
A lot of iOS users want to downgrade iOS 10.3 to iOS 10.2.1 retaining user's data, but they couldn’t find a way to do that. This tutorial is mainly introducing how to downgrade iOS 10.3 to iOS10.2.1 retaining user's data.
Step1: Download and install the latest 3uTools on PC. Launch 3uTools and connect your iPhone to it. Click Toolbox ->Customized Backup -> Select the items you want to backup.
Step2: After iDevice is backuped successfully, you need to flash your iDevice using 3uTools. Click Flash & JB -> select the firmware 10.2.1-> clcik Flash, and then just wait until this process is completed. Remember to activate your iDevice after flashing.
Step3: When iDevice is activated, please back to Toolbox, click Backup/Restore -> Backups Management -> Open location.
Step4: Find Info.plist file, and open it using notepad.
Step5: Find 14E5260b,and then replace it with 14C92.
Step6: Find 10.3, and then replace it with 10.2.
Step7: After modification, please back to Toolbox -> click Restore Data. Select the backups you just modified and restore it.
- Why Do I Need to Bind Apple ID Using 3uTools? iTunes Flash is Available on 3uTools Now! How to register an Apple ID? What's Anti-Recovery Flash on 3uTools? Downgrade iPhone 4s / iPad 2 to iOS 6.1.3 Using 3uTools How to Downgrade iPhone 4 from iOS7 to iOS6.1.3 without SHSH Blobs Using 3uTools? How to Upgrade 16GB iPhone to 128GB through Replacing Hard Disk? How to Fix Error Unable to Request SHSH on 3uTools or iTunes Error 3503?