How do I remove update on my iPhone?

Hi! You can remove a download of an update, if you haven't already installed it, to free up space:

1. Open Settings
2. Tap 'General' > iPhone Storage
3. Scroll down to find the iOS update you downloaded

If you're unable to find one, it's probably already been installed or not downloaded in the first place.

I hope this answers your question!

You can't remove or downgrade main iOS updates.

You can however uninstall the smaller Rapid Security Response updates from Settings ➜ General ➜ About ➜ iOS Version if the last thing you installed was one of those updates.

Apple does not allow users to go backwards with updates. So be, you cannot remove the update. Once you update your iPhone, it stays at that version until you update to a newer version.

If you mean an iOS update, you can’t

Apple does not provide a “roll back” mechanism like some other platforms.

“Always Advance !!!”

Apple does not support this.