How to downgrade from iOS 17.11 to 16?

Prodution level iOS' can't be downgraded. Only betas can.

No, it is not possible to downgrade the iOS version on an iPhone.

Once you update to a newer version of iOS, Apple stops signing the older versions, which means that it is no longer possible to install them on your device.

This is done for security reasons, as older versions of iOS may contain vulnerabilities that have been fixed in more recent versions.

It is generally recommended to stay up-to-date with the latest version of iOS, as it often includes important security updates and new features.

Hello~ You can’t as downgrading is not supported.

~Katana-San~

roslynbowral wrote:

Can I delete ios17

No, you can't delete it in favor of an earlier version. Once you've upgraded iOS, there's no going back.

17Scarlet02 wrote:

How to delete 17.1.1

it has messed up lots on my phone

You can't. Once you upgrade from one production version of iOS to another, you can't go back. The most you can hope for is that Apple will change some things again, going forwards.

ely147 wrote:

I WANT TO DELETE THE NEW UPDATE SO BAD “iPhone may be too close” STFUUUU HOW CAN I DELETE IT ITS TRASH

You can't.

Apple designed iPhone updates to work in one direction: forward only. So you can't delete it by downgrading – and you can't delete it by upgrading to something newer (as there is nothing newer yet). You've got to live with the new update, for better or worse.

Gammyjackie wrote:

I totally dislike the 17.1.1 update!!! How can I revert to previous update

You can't. Which you would have known if you had read the thread, before adding another reply to it.

Apple does not support "going back". Never has.

Think twice before you jump on the next update.

You can't.

So I installed the 17.1.2 last night, which is the update Apple released to fix the bugs from 17.1.1. While my contacts still look funky, some of the other issues seem to be fixed. Make sure you install it when you get a chance. Definitely helps! But I sure wish I could go to the previous version.

I totally dislike the 17.1.1 update!!! How can I revert to previous update

I haven’t got a back up, it even overrides that and I don’t have another PC to try and change back, it cost me everything I had stored, there’s nothing in my iCloud and it’s not excepting any of my I’d passcodes or passwords? It keeps saying there failed? Mind you I have them written down in front of me, so I don’t forget! Can anyone please help me in a situation like this? I don’t like this 17 version at all

I absolutely agree with you this update is trash, I hate the way my Contacts looks now is horrible and regarding other people that had replied to this some are WRONG cause when you go and check what the update was about it only mentions certain security concerns about the Contacts app, but they never mentioned ANYTHING about changing they way that each contact sheet looks. What I decided to do is to schedule a call from an Apple customer service representative later today and will request to go back to my prior IOS version, so after that call happens, I will come back here and update this post to see if I can help someone with the same issue.