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I don’t like to configure BT viathe command line but if I really have to I follow this HowTo that I wrote. Good luck! 🙂

| – Bluetooth – |
At the time of writing (dec. 2013) Bluetooth in Linux is a mess. Bluez 5.5 seems to have solved the probs, but Debian Stable (7.0, Wheezy) still uses version 4.

List bluetooth dongles:

hcitool dev

Example of output:

hci0 AA:BB:CC:00:11:22

Get MAC address of bluetooth keyboard or other device. Set device in pairing mode!:

hcitool scan

Example of output:

Scanning …
AA:BB:CC:00:11:22 Wireless Keyboard

Pair said device:

bluez-simple-agent hci0 AA:BB:CC:00:11:22

It will ask for a confirmation code to be made up by you (I’d choose 0000). Then you must type it in on the on the BT-keyboard and press Enter. Sometimes the standard code used is 0000.

If the following error code is returned then you’ve already successfully paired said device:

Connecting device failed: org.bluez.Error.AlreadyExists: Already Exists

Trust device:

bluez-test-device trusted AA:BB:CC:00:11:22 yes

Connect device (this is where it always goes wrong!!!):

bluez-test-input connect AA:BB:CC:00:11:22 yes

Example of connect errors:

org.bluez.Error.Failed Connection refused (111)
org.bluez.Error.ConnectionAttemptFailed: Host is down (112)

And then what???

| – Trouble shooting – |
Restart bluetooth (choose the one that fits you system):

su -c “service bluetooth restart” (Debian 7 Wheezy)
sudo /etc/init.d/bluetooth restart (Ubuntu 10.04)

Remove a paired device?

bluez-simple-agent hci0 AA:BB:CC:00:11:22 remove

In Ubuntu 10.04 the bluez Python scripts called ‘simple-agent’, ‘test-device’ etc. reside in (!!):


Error: “Creating device failed: org.bluez.Error.AlreadyExists: Bonding already exists”. Solve by: ??

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