can't get itunes 12.9 and iphone 8 with ios 16 to work together
I am using an older iMac with Mojave installed (10.14.6) so device backups and syncs must be done using iTunes.
I recently installed ios16 on my iphone 8 plus. Something went wonky during the process and I had to restore from a backup, which worked.
The problem now is that when I plug it in via USB, iTunes will not recognize my phone—it thinks it's a new device—and the only options it will offer are to either restore from my January backup (which I already did) or set it up as a new phone. It does not offer me the opportunity to backup or sync or even see what is on my device. This means I can't access music that's in my iTunes library but was originally from CDs rather than downloads from the Apple Store.
I've already done a restore and I have no idea if setting it up as a new iPhone will help with my basic problem. Setting everything up from scratch again would be a lot of work, so I'm reluctant to do it without knowing whether the problem is in my system or is a basic incompatibility between Mojave and ios 16.
Does anyone know one way or the other, or have any suggestions?
iPhone 8 Plus