Well, actually it's a some kind of fork from
viewtopic.php?f=67&t=14244#p63076
but its title is not good enough for one in search how to make bluetooth to work: something about faulty bluetooth highly likely doesn't interesting person who just has such problems, isn't it?
So, I made a slight change in btuart.sh and added PKGBUILD to make things easier. You need git package installed to make all things below.
1. Move to Your home directory
$this->bbcode_second_pass_code('', '$ cd~')
2. Clone repository, go into the cloned folder and install all stuff on its place
$this->bbcode_second_pass_code('', '$ git clone https://github.com/WTFThatPerson/bluetooth-rbp.git
$ cd bluetooth-rbp
$ makepkg -si
$ sudo reboot
$ sudo start hciuart
$ sudo enable hciuart
')
3. Enjoy