We have made some major improvements in the bluetooth connection in the most recent GOFAR software updates.
The most important thing would be to make sure that all of the GOFAR App and Adapter is up to date. Also, we have published a brand new article on connectivity that should solve your problems.
Try this: http://support.gofar.co/support/solutions/articles/13000042705-gofar-not-connecting-to-phone-s-bluetooth
Let me know this solves the problem for you.