Struggling with iOS 26? Here’s how to downgrade to iOS 18.6.2 for a smoother iPhone

Apple users facing bugs or slow speed on iOS 26 can switch back to iOS 18.6.2 for better performance. The downgrade process is possible but requires backups, downloading the correct IPSW file, and ...
MacRumors

How to Downgrade From iOS 26 Beta to iOS 18

If you installed iOS 26 Beta or iPadOS 26 Beta through Apple's Developer Program or Software Beta Program, you may decide you want to downgrade because of usability or stability issues. Keep reading ...

Apple Has Made It Impossible to Downgrade From iOS 26

If you installed iOS 26 on your iPhone, it is now officially impossible to downgrade. Apple has stopped "signing" iOS 18.6.2, which means you cannot install iOS 18 on your iPhone. If you're currently ...

iOS 26 Issues? Apple No Longer Lets You Downgrade To iOS 18

The iOS 26 update is impressive, but there's bad news if you didn't like it. Apple doesn't allow users to downgrade to iOS 18 once they install the new update.
PCMag

Make Sure You Really Want iOS 26. There's No Going Back to iOS 18

As it usually does after a new iOS release, Apple has stopped validating its older mobile OS. So, if you upgraded to iOS 26, ...