How to Downgrade iOS 26: Step-by-Step Tips & Advice

Downgrade iOS 26 to 18 Without iTunes – Try ReiBoot Now

Downgrade iOS 26 with ReiBoot [Best Choice]

Connect your device and click "iOS Upgrade/Downgrade" on the interface.
Choose "Downgrade" Option.
Once the firmware is downloaded, you can begin the downgrade.
Congratulations! You will see the completed page after successfully downgrading.

Notices

ReiBoot simplifies iOS downgrade—no IPSW files & no iTunes.
Make Sure that you have made a backup before downgrading.
Unsigned version cannot currently be downgraded.

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Downgrade iOS 26 with iTunes

Go to ipsw.me and download the firmware that matches your iOS device.
Launch iTunes or Finder on your computer.
Hold Option (Mac) or Shift (Windows) and click Restore iPhone.
Select the IPSW file you downloaded and wait until iTunes finishes downgrading to iOS 18.

Notices

Ensure you download the correct IPSW file that matches your exact device model to avoid errors.
Downgrade iOS 26 via iTunes will casuse all your data loss.
it is recommended to use a third-party backup tool like Tenorshare iCareFone to back up.

Back Up Your iOS Device Before Downgrade

To avoid data loss when downgrading iOS 26, make sure to back up your device first. Apple’s iTunes and iCloud work well, and Tenorshare iCareFone offers a simple alternative. Just follow the three easy steps below.