No space for latest iOS download
running ios 18 on my iPhone 18 Have a red 1 on the Settings app to download ios 25. haven't got room, and can't afford to upgrade phone. how do I get rid of the 1
iPhone 11, iOS 18
is your System Data more than 5GB?
Backup and restore to reduce it.
Resources…
Back Up: How to back up your iPhone, iPad, and iPod touch - Apple Support
Erase & Restore: Restore your iPhone, iPad, or iPod touch from a backup - Apple Support