try this:
https://github.com/ubports/wiki.ubports.com/blob/master/Installation-of-ubuntu-touch-on-fairphone.md
but SIM Cards are not working and this "fix" also not working 
https://bugs.launchpad.net/ubuntu/+source/urfkill/+bug/1321627
sorry for my bad english
greetings
Hi,
i think you forget the "--bootstrap"
ok i got it, i have to flash a second time without "--bootstrap" in the recovery. But there is the next problem. UT boots but without sim card(s) AND only the stable version boots up.
sorry for my bad english and thanks for your help 
which recovery version do i need to install U-Touch? I always get this error message "Can't boot recovery image" (stable and rc-proposed)
At the moment my FP2 is running with the FP-OS 16.06.
Thanks