I had googled this issue a lot and downloaded the attached BCM.hcd file which make it works. however the bluetooth devices get connected, but sometimes the sound is not heard properly.
** Attachment added: "BCM.hcd" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1644823/+attachment/4788759/+files/BCM.hcd -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1644823 Title: Bluetooth not working Status in linux package in Ubuntu: Incomplete Bug description: I have Lenovo thinkpad E531 laptop. The built-in bluetooth not working. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-47-generic 4.4.0-47.68 ProcVersionSignature: Ubuntu 4.4.0-47.68-generic 4.4.24 Uname: Linux 4.4.0-47-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: mfawzy 1927 F.... pulseaudio CRDA: country EG: DFS-ETSI (2402 - 2482 @ 40), (N/A, 20), (N/A) (5170 - 5250 @ 40), (N/A, 20), (N/A) (5250 - 5330 @ 40), (N/A, 20), (0 ms), DFS CurrentDesktop: GNOME-Flashback:Unity Date: Fri Nov 25 14:40:57 2016 HibernationDevice: RESUME=UUID=3d81c46b-d5d8-4809-8b2c-45998d99d0e7 InstallationDate: Installed on 2016-11-15 (9 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) MachineType: LENOVO 6885DZG ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-47-generic root=UUID=5348a48b-8050-4470-98f1-f6b758b76ce1 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-47-generic N/A linux-backports-modules-4.4.0-47-generic N/A linux-firmware 1.157.4 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/30/2014 dmi.bios.vendor: LENOVO dmi.bios.version: HEET44WW (1.25 ) dmi.board.asset.tag: Not Available dmi.board.name: 6885DZG dmi.board.vendor: LENOVO dmi.board.version: Not Available dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Not Available dmi.modalias: dmi:bvnLENOVO:bvrHEET44WW(1.25):bd05/30/2014:svnLENOVO:pn6885DZG:pvrThinkPadEdgeE531:rvnLENOVO:rn6885DZG:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable: dmi.product.name: 6885DZG dmi.product.version: ThinkPad Edge E531 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1644823/+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