Ok, got it working... In the manual is a wrong PPA url given:
Here is how to do it: On your desktop computer: $ sudo add-apt-repository ppa:phablet-team/tools $ sudo apt-get update $ sudo apt-get install phablet-tools-citrain Connect your device via USB cable... $ citrain device-upgrade 22 1234 (where 1234 is your mobile PIN) Device reboots multiple times... --> System Settings --> Info --> Ubuntu 15.04 (r116) :-) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bluez in Ubuntu. https://bugs.launchpad.net/bugs/1435040 Title: Ubuntu Phone (BQ E4.5) does not connect to car-bluetooth Status in Canonical System Image: Confirmed Status in bluez package in Ubuntu: Confirmed Status in ubuntu-system-settings package in Ubuntu: Incomplete Bug description: With my FORD Focus Car, pairing does not work. The bluetooth system in the car searches for devices and shows "Aquaris E4.5 Ubuntu Edition" and then prompts me to connect with a 4-digit pin code, but the Ubuntu phone doesn't react at all and after a while the car system says that it failed to connect. image: 20150310-3201c0a KRILIN01A-S15A_BQ_L100EN_2020_150312 OS Build 20 To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1435040/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp