Everything fine except WhatsApps- as you predicted.
I had to go round the WhatsApp loop several times, moving it back and fourth between the old and new phones until it stuck...
*Forth
The chats have gone but all the pictures are still in the gallery and it is still doing stuff. Maybe they will come back, but it doesn't matter as they were all just puerile spaz jokes. Which are fine. Beautifully, all my particular swear phrases are copied across. so I don't have to retype "a bunch of utter cuntishness, peddled by the the fuckwittery of absolute mongtards who fail to see ther wankery of their spasticated dead-end ideas".