How do I downgrade my iPhone from iOS 26 to iOS 18.5?

If you are referring to the official version that was just released (NOT the beta version), then the answer is this - once you update, you cannot revert back to an older version. Apple does not support that.

Perhaps this link will help you better understand iOS 26. If you have specific questions about the features, please post them in a new thread so we may try to help.

What’s new in iPadOS 26 - Apple Support

khloey290 wrote:

I don’t like the iOS 26 update

Too bad. There are currently 139 messages in the 10 pages of this thread that you didn’t bother to read before posting, but if you had you would know everything there is to know about why you can’t downgrade. Or even if you read the Top Ranking reply at the top of every one of the 10 pages.

How to remove beta -

Apple Beta — Unenroll Your Devices

leshetzjacob wrote:

It’s not work

If you mean downgrading didn't work, you're right. You can't downgrade.

Hello~ You cannot. Read back through the other pages of this thread as this has been explained many times already.

~Katana-San~

covenant290 wrote:

how do I downgrade my iPhone from iOS 26 to iOS 18.5

You don't. It takes very little reading on this page to learn that.

kora225 wrote:

i really dislike it to be like how it used to be pls make another update and change it back pls

This is a user-to-user forum. No one here can change anything back. Apple doesn't read here for feedback or suggestions. You can, however, let them know your thoughts here:

Product Feedback - Apple

Read the answer already given in this thread.

You don't as already explained in several posts here.

Please read the following article then post back with your question –

Writing an effective Apple Support Commun… - Apple Community

It’s not work

What you want.....you cannot have, no matter how many times you ask.

You can send Apple your feedback here https://www.apple.com/feedback/

You could be willing to pay a million, but the answer won't change.

I dislike the iOS 26 update and I really want to delete it so can you figure out or help me show steps or tutorials of how to delete the iOS update because it looks nasty to me and I want the 18 back that is 18 back the iOS 18 back?

[Edited by Moderator]