Need help updating an iPhone 8 Plus to ios17
I had an iPhone 8 Plus in mint condition and I passed it onto my daughter but last Xmas we got her an Apple Watch SE but it turned out that this watch requires iOS 17 and the iPhone 8 does not support iOS 17, I am trying to install a beta version of iOS 17 but no matter what I do the update does not show up on software update, I signed up for beta updates and added the device, a new iOS 17 version recently came out but the iPhone 8 Plus still does not show it.
any help updating it to iOS 17 would be very much appreciated so my daughter can use her watch.
iPhone 8 Plus, iOS 16