Comment 9 for bug 1576986

I could not get Logitech MX anywhere 2 mouse or Belkin Slim style keyboard to work with UT even via the CLI commands.

[NEW] Controller B4:9D:0B:50:1B:36 ubuntu-phablet [default]
[NEW] Device 70:81:EB:5F:90:44 T-iPhone
[NEW] Device 14:99:E2:01:1D:CC 14-99-E2-01-1D-CC
[NEW] Device 54:60:09:04:13:AB 54-60-09-04-13-AB
[NEW] Device D0:4F:7E:1E:BF:53 D0-4F-7E-1E-BF-53
[NEW] Device F4:61:3E:46:04:27 Belkin Slim Style Keyboard
[NEW] Device FE:A3:C1:14:51:2E Belkin Slim Style Keyboard
[NEW] Device FD:F9:5F:4F:3B:D8 Belkin Slim Style Keyboard
[NEW] Device D7:BE:EE:3E:8C:4B Belkin Slim Style Keyboard
[NEW] Device EF:EE:62:D3:E4:7F Belkin Slim Style Keyboard
[NEW] Device C0:C2:B4:3A:54:81 MX Anywhere 2
[NEW] Device 00:07:61:13:2E:D1 Logitech MX900 Mouse
[NEW] Device 60:FB:42:01:28:F6 t-m10 keyboard
[NEW] Device 7C:1E:52:09:57:A9 Microsoft Wedge Mobile Keyboard
[CHG] Device F4:61:3E:46:04:27 Connected: no
[bluetooth]# agent on
Agent registered
[bluetooth]# default-agent
Default agent request successful
[bluetooth]# pairable on
Changing pairable on succeeded
[bluetooth]# pair C0:C2:B4:3A:54:81
Attempting to pair with C0:C2:B4:3A:54:81
Failed to pair: org.bluez.Error.AuthenticationFailed

Both the keyboard and the mouse end up in the same error, org.bluez.Error.AuthenticationFailed
Keyboard never asks for a pin.

Any further hints I can look on pairing these?