iPhone transfer from old iPhone 11 to iPhone 15 is stuck
I was trying to move to my newly purchased iPhone 15 from my old phone which is iPhone 11. However, it forced me to upgrade to iOS 18. The upgrade got stuck for several hours (sometimes more than 5 hours). Shutdown, Rest and retry the transfer did not work. It got stuck exactly at the iOS 18 "Software Update" step. Please help.
iPhone 11, iOS 18