After a reboot it seems to work. awe_ mentioned there might be a race condition which he will test.
Now bluetoothctl gives uuids for audio sink etc. OS build details: build number: r331 image part: 20160105 build decription: Ubuntu 15.04 - armhf (20160105-020304) -- 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/1531515 Title: Bluetooth cannot be enabled on Ubuntu Touch rc-proposed Nexus 4 Status in bluez package in Ubuntu: New Bug description: After switching from OTA8.5 to rc-proposed (to test if my BT keyboard would work with that) BT cannot be turned on any more. I can flip the switch, but after 30s it is switched off again (probably never turned on). I am unable to discover any BT devices. Running bluetoothctl on the devices from the terminal and then entering "show" results in: "No default controller available" I switched to rc-proposed for the Nexus 4 like this: ubuntu-device-flash touch --channel=ubuntu-touch/rc-proposed/ubuntu To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bluez/+bug/1531515/+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