I set up my iPhone without transferring anything from my other phone. Is there a way to go back and get everything transferred
I skipped the transfer of data from my old phone. Now I want to transfer can I still do this and how
iPhone 11, iOS 15
If you still have your old iPhone with data on it, perform the following procedure on your new iPhone, and re-start from scratch:--> What to do before you sell, give away, or trade in your iPhone, iPad, or iPod touch - Apple Support
Then, see the instructions and choose your preferred (doable) method among the ones listed in the support article that led you here.
Regards
Giulio