My wife uses Huawei Mate 10, I installed Hibymusic on it and paired with Idap-6 on FIRST attempt, but wifi is off, I am using wired network.
However, the bluetooth of Idap-6 have problem detecting the generic bluetooth media remote (cheaper one, look almost identical to Fiio RM1), my surface pro 4 have no problem to pair with this bluetooth remote.
Not sure why it like that, but both my smartphone able to paired with Idap-6 only when pairing is done on smartphone, ie Idap-6 won't be able to 'see' the available devices but smartphone can see it and able to pair with it. But the little bluetooth remote don't have option/display to see Idap-6 and hence unable to pair it. Problem may be Idap-6 unable to list out available bluetooth devices.