Sometimes the latest iOS update doesn’t feel like an upgrade. Maybe your battery drains faster, your favorite apps crash, or performance lags unexpectedly. Whatever the reason, going back to a previous iOS version can be a practical solution—if you know the correct steps to do it safely.
Apple doesn’t make downgrading straightforward, especially as it stops signing older iOS versions quickly after releasing a new one. But with proper timing, tools, and preparation, you can still roll back your iPhone to a more stable or compatible version. This guide walks you through the full downgrade process, covering signed and unsigned iOS firmware, backup tips, and critical risks to consider.
Before You Downgrade: Read This First
1. Understand Apple’s Signing Policy
Apple only allows downgrading to iOS versions that are still being “signed.” Typically, this window closes within 1–2 weeks after a new version is released. Once unsigned, downgrading becomes much harder and often requires saved SHSH blobs or third-party tools.
2. Back Up Everything (Twice)
Downgrading erases your device. Back up your data via iCloud or Finder/iTunes. Note: you can’t restore an iOS 18 backup on iOS 17—only backups from the same or older versions are compatible.
3. Confirm Compatibility of IPSW Files
Every iOS device has a specific firmware build. Head to ipsw.me, select your device, and download a currently signed IPSW file for the iOS version you want to install.
4. Check App and Feature Support
Not all apps will function properly on older iOS versions. Also, newer security features, messages, or media may not work or may be removed once you downgrade.
How to Downgrade iOS: Step-by-Step
5. Use Finder or iTunes (For Signed Firmware)
- Download the correct IPSW file for your device from a trusted source (like ipsw.me).
- Connect your iPhone to your Mac or PC via USB.
- Open Finder (macOS Catalina and newer) or iTunes (Windows/macOS Mojave or earlier).
- Put your iPhone in Recovery Mode (or DFU Mode if necessary).
- Hold the Option (Mac) or Shift (Windows) key and click “Restore iPhone.”
- Select the IPSW file and confirm the restore.
6. DFU Mode for Clean Downgrades
If Recovery Mode fails or you want a more thorough downgrade, DFU (Device Firmware Update) mode reloads both firmware and iOS from scratch. Be cautious—this wipes everything.
7. Downgrade Using Third-Party Tools
Apps like iMyFone Fixppo, Tenorshare ReiBoot, and TunesKit iOS System Recovery offer guided downgrade options—even for unsigned versions. Some support downgrades without data loss, but results vary. Always review tool limitations and trial restrictions.
8. Use SHSH Blobs for Unsigned Downgrades
If Apple no longer signs your desired iOS version, you can downgrade with saved SHSH blobs using tools like FutureRestore. However, this is a complex process typically suited for advanced users and requires prior blob backups from when the iOS version was signed.
9. Verify After Downgrade
Once the downgrade completes, set up your iPhone as new or restore from a compatible backup. Verify basic functions like calling, messaging, app behavior, and iCloud sync before fully relying on your device.
10. Turn Off Auto Updates
To prevent automatic re-updates to the latest iOS, go to Settings → General → Software Update → Automatic Updates and disable both toggles.
11. Optional: Install a Profile to Block Updates
You can install a tvOS beta profile to block iOS updates entirely. This is a known workaround used by many testers to stay on older iOS versions. Be sure to remove this profile if you want to update again in the future.
Best Practices and Troubleshooting
Plan Your Downgrade Timing
Act fast after an iOS release. Downgrade while your target version is still signed. Monitor Apple’s signing status via ipsw.me or community trackers.
Don’t Count on Data Recovery
If your backup was made on a newer iOS version than you’re downgrading to, it won’t restore. Always export critical data like photos, notes, contacts, and calendars separately.
Restore Apps Manually When Needed
Some apps tied to the newer iOS SDK may not work properly after a downgrade. Reinstall older versions manually (if available) or use alternative apps until compatibility is resolved.
Use Trusted Tools Only
There are many downgrade tools out there—some legit, some sketchy. Stick with known names or Apple’s official Finder/iTunes method if you’re unsure.
Consider Long-Term iOS Support
If your goal is long-term stability, avoid beta versions entirely and stay on the last signed public release. This reduces the need to downgrade again in the future.
Rolling back your iPhone to a previous iOS version isn’t as easy as clicking a button, but it’s still entirely doable. Whether you’re troubleshooting a buggy update or need compatibility for a critical app, the downgrade path is there for those who plan ahead.
The key is knowing whether your target iOS version is still signed, backing up your data wisely, and choosing the right method—Finder/iTunes, third-party tools, or SHSH blobs. With the right preparation and a bit of patience, you can safely return to a more stable version of iOS that works best for your needs. Just remember: the downgrade window doesn’t stay open long, so don’t wait too long to make your move.
