How do I downgrade my iPhone from iOS 26 to iOS 18.5?
Ios 26 update downgrade to ios 18.5 ios 26 is not satisfactory
[Re-Titled by Moderator]
Original Title: ios 26 downgrade to 18.5
I want to change my phone to iOS 18
Question marked as
Unfortunately, you can’t downgrade an iPhone to iOS 18.5 once it’s been updated to iOS 26.
Apple only allows installing versions of iOS that are still being signed — and older versions like iOS 18.5 are no longer signed by Apple’s servers. That means even if you have an IPSW file, the installation will fail because the signature check won’t pass.
If iOS 26 feels unsatisfactory, the best thing you can do is:
- Submit feedback to Apple here: https://apple.com/feedback/ – this helps improve future releases.
- Check for upcoming updates under Settings › General › Software Update – Apple often fixes issues quickly with minor updates.
- Restore your iPhone via Finder or iTunes if you think something went wrong during the update. This can sometimes improve performance.
Once Apple stops signing iOS 26 and releases a new version (like iOS 26.1), you can only move forward, not back.
If you just want your phone to feel faster or more stable again, a clean restore from backup usually helps a lot!
103 replies
There are 6 pages of answers, try reading some of them instead of posting a me too answer
Want to downgrade my iOS to 18.
First time i have ever needed to downgrade.. 26.01 is horrendously slow on my iPhone 13 pro.
and basically i cant downgrade cause i lose all my data. Wow.
I want to downgrade my IOS to 18
Did you read any of the replies in this thread for answers?
iPhone from iOS 26 to iOS 18.5?
Read through the 7 pages of answers, no need to post it again.
Because they keep on messing up my phone so I want the iOS 18
Iphone13pro max dawangred
No
Vreau iOS 18
ios 26 is such a mess😡 my phone is shutting down without any reason in 80% charge
How do I downgrade my iPhone from iOS 26 to iOS 18.5?