How I update IOS17 version

An iPhone X, as shown in your device line, is not compatible with iOS 17.

iPhone XR, XS and later only.

click here ➜ iPhone models compatible with iOS 17 - Apple Support

shanaya290 wrote:

I am not unable to install iOS 7 version when I trying to open my UPI app they are asking for iOS 17 version

You would need a compatible iphone to update to ios 17, don't think an iphone X is.

Get a new phone so you can access your app.