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
Removed ios26 in install 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!
158 replies
Already answered
Deleted iOS 26 back to iOS 18
Read through this post, there is no reason to write the answer again.
At this point, there's no point in answering at all. They can just wait and install the final release on Monday.
Very true.
Can you please direct me to where the response is?
Thank you
Can you please advise where- there are so many threads i have lost track
thank you 🙏
I installed iOS 26 on my phone, I don't like it at all, my phone is lagging a lot, how can I install it on iOS 18, can I send it?
How do I downgrade my iPhone from iOS 26 to iOS 18.5?
How do I downgrade my iPhone from iOS 26 to iOS 18.5?
Read the section on Performance and Battery Impact: About Apple software updates - Apple Support
Everything from my phone is gone
i really dislike it to be like how it used to be pls make another update and change it back pls
How delete ios 26
How do I downgrade my iPhone from iOS 26 to iOS 18.5?