Make sure your iPhone's software is up to date, currently iOS 11.4. Check it yourself, don't rely on a replacement phone being fully updated when you receive it. Then make sure your phone's Bluetooth is active and you have a working WiFi connection
Make sure your iPhone's software is up to date, currently iOS 11.4. Check it yourself, don't rely on a replacement phone being fully updated when you receive it. Then make sure your phone's Bluetooth is active and you have a working WiFi connection
Apple Watch stuck on update, won’t update to pair with new phone