code is currently out of tree
Please try to reproduce this bug with latest kernel image.
Created attachment 255219 [details]
With this patch I was able to see and get the bluetooth device to pair with my phone. Trying to copy anything instantly disconnected and I got no further.
I'm using the rtk_hciattach from the above git tree (it uploads the firmware to the device from userspace.) It seems kindof similar to the in kernel driver at /drivers/bluetooth/btrtl.c
Please check if rtl8723bs works for you with Linux 4.13.
Whops, at first I didn't notice your report is about Bluetooth part, which is certainly unsupported yet. Sorry for noise.