Unable to search for an update
I tried everything on every blog or forum. Nothing solves the problem. I am running ios 16 on iphone 8 and want to pair apple watch series 3
Update your iPhone, iPad, or iPod touch
• If you have an iPhone 5S or 6/6plus, the highest you can update to is 12.5.7
• If you have an iPhone 6S through 7, or SE 1st generation, you can update to 15.7.7
• If you have an iPhone 8 or higher, or SE 2nd or 3rd generation,you can update to 16.6
Go to Settings > General > Software Update.
This link will show you how to update your iPhone, iPad, or iPod touch using WiFi -
Update your iPhone or iPad - Apple Support
This link will show you how to update using your computer -