Mine is finally transferring the data from my iPhone7.
i have tried over 20 times to get this to work.
in the end I managed to upgrade the iOS this morning on the SE to 13.4.1, then reset and start the migration again, and finally it started transferring data, fingers crossed it completes.
the iCloud backup wouldn’t work, as I could see them, but as it was on a later iOS version I got a message saying it couldn’t use it.
For me, it wasn’t a quick or easy process and I have spent over 10 hours trying to get it to work, hopefully there are only a few of us that have issues like this.
UPDATE :- my transfer has finished and all is good. Once the 2 phones were on the same iOS, it was very quick and easy.
In hindsight I should have left my iPhone7 on 13.4, but hey, hi sight is a wonderful thing.
Hope everyone enjoys there new phone.