My Second Phone “Samsung Galaxy S2 - i9100” now runs with LineageOS Nougat. Thats so strange the first week the Battery drained in hours and now this phone works in Standby (no SIM) for three whole days, and every thing works.
(a friend of mine had the same strange behaviour with the Battery drain. Seems that Android has to learns to use the Battery)
If Android 7 is possible for this Phone from 2011 it should also be possible for the Fairphone.
Thanks for every developer which works in this case.