Can’t use mobile data after update to iOS 26
Do you have any idea to revert back to iOS 18?
iPhone 15, iOS 26
Question marked as
If you're on the beta, you can downgrade, see this link on how to do that
How to uninstall iOS or iPadOS beta software - Apple Support
If you're not on the beta for as far as I know you cannot downgrade, you might want to see if you need to install a carrier settings update
- Make sure that your device is connected to Wi-Fi or a cellular network.
- Tap Settings > General > About.
- Follow the onscreen instructions to install your carrier update.