I want to download iOS 15 but the download and install option is Blair to download

To update over the air from the phone all of these requirements must be met:

• You need at least 6 GB of free storage
• You must be connected to a Wi-Fi network (and not a personal hotspot)
• The phone must be charged to at least 50%, and preferably plugged in so it stays above 50% during the update
• The phone must not be in Low Power Mode
• The phone must not be connected through VPN
• The phone cannot be in Airplane mode
• You cannot still have a beta version installed on the phone

If you can't meet all of them you can still update using your computer.

No, as I explained, you don’t have to if you are installing a newer version.

• Go to Settings/General/Profiles
• Tap on the Beta profile
• Delete it
• Restart your phone
• Go to Settings/General/Software Update and it should show iOS 15.3.1

I said to delete the beta profile. You only have to restore the device if you want to restore an earlier version of 14, but that isn’t what you want to do. Just delete the beta profile and restart your phone. And keep this problem in mind the next time you think about installing a beta.

Start here: Update your iPhone, iPad, or iPod touch - Apple Support

That means that you have an iOS 14 beta version on your phone. You need to remove the beta profile→How to uninstall iOS beta software - Apple Support

Looks like you got help from yourself.

Can you post your screenshot of where you are getting this message? Blair to download doesn't mean anything.

ios 15

 I want to download iOS 15 but the download 

I tried all of those and through the computer on iTunes. When I connect to iTunes and check for updates it shows 14.5.1 and says its the latest version. Update iTunes maybe?

VPN not connected

Gmks wrote:

VPN not connected

What does that have to do with having a beta version of iOS on your phone?

One of the instructions. The other says I have to restore the device and lose my data?

Looks like I have to restore the device and wipe all the data?