I Have no ios 16

Did you participate in the beta program of iOS version 15? If YES, then you may still have the beta profile installed on your iPhone X and that is preventing you from updating to iOS version 16. To check this, open Settings ➡️ General ➡️ VPN & Device Management ➡️ Confirguratoin Profile: Here, if you see a beta profile installed, then tap on it and then choose remove the profile. Once this is done, then restart your iPhone and attempt to update your iPhone again.

Axel F.

Update your iPhone, iPad, or iPod touch

• If you have an iPhone 5S or 6/6plus, the highest you can update to is 12.5.6

• If you have an iPhone 6S through 7, you can update to 15.7

• If you have an iPhone 8 or higher, you can update to 16

Go to Settings > General > Software Update.

Update your iPhone, iPad, or iPod touch using WiFi -

Update your iPhone or iPad - Apple Support

Update using your computer -

Update iOS on iPhone - Apple Support