I bought a new iphone because the olf one had not enough storage. I tried to transfer from the old iphone to the new one but nothing happened for hours. I did not want to update the IOS 16 as well.
iPhone SE, iOS 15
Read the support article Transfer data from your previous iOS or iPadOS device to your new iPhone or iPad - Apple Support to learn how to transfer data from your previous iOS device to your new iPhone, iPad, or iPod touch. Select one of the three options: Quickstart, iCloud, or iTunes/Finder.
Try another method if one does not work.
How to transfer from my old iphone to the new one
