Purchased Xiaomi Mi Max 3 with Xiaomi.eu [https://www.xiaomi.eu] ROM
pre-installed (
https://tradingshenzhen.com/en/mi-max-3/1302-mi-max3-6gb-ram-128gb-rom-snapdragon-636.html
)
Tried to get settings/data/apps transferred from old phone to new, but none of
the Google set up prompts appeared on boot.
The following process will get it