How to mount android phone in linux via bluetooth?

Question

linux

I try with the command:
obexfs -b XX:XX:XX:XX:XX:XX bluetooth
It thinks for a while, it ends, it does not give errors, but the directory is empty.
Phone Xiaomi Mi4i. Moreover, Nokia N9 is mounted properly.
Where can I find connection logs? Where to dig?
Ubuntu 15.10 system