03:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 0a)
    Subsystem: Lenovo RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [17aa:3830]
    Kernel driver in use: r8169
    Kernel modules: r8169
04:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter [10ec:b723]
    Subsystem: XAVi Technologies Corp. RTL8723BE PCIe Wireless Network Adapter [1b9a:2485]
    Kernel driver in use: rtl8723be
    Kernel modules: rtl8723be, wl



Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 04f2:b49f Chicony Electronics Co., Ltd
Bus 001 Device 003: ID 174f:1169 Syntek
Bus 001 Device 002: ID 062a:4102 Creative Labs
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub



0: ideapad_wlan: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: ideapad_bluetooth: Bluetooth
    Soft blocked: no
    Hard blocked: no
2: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
4: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

    [    0.160519] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[    0.364113] acpi PNP0A08:00: [Firmware Info]: MMCONFIG for domain 0000 [bus 00-3f] only partially covers this bridge
[    1.466117] [Firmware Bug]: No valid trip found
[    2.610072] usb 1-4: Product: Bluetooth Radio
[   10.398181] rtl8723be: Using firmware rtlwifi/rtl8723befw.bin
[   11.842460] Bluetooth: Core ver 2.21
[   11.842487] Bluetooth: HCI device and connection manager initialized
[   11.842493] Bluetooth: HCI socket layer initialized
[   11.842498] Bluetooth: L2CAP socket layer initialized
[   11.842508] Bluetooth: SCO socket layer initialized
[   12.626712] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[   12.626719] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_fw.bin
[   12.698802] Bluetooth: hci0: rom_version status=0 version=1
[   17.016934] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   17.016940] Bluetooth: BNEP filters: protocol multicast
[   17.016947] Bluetooth: BNEP socket layer initialized
[   19.079058] Bluetooth: hci0 command 0x0c56 tx timeout
[   38.328458] Bluetooth: RFCOMM TTY layer initialized
[   38.328470] Bluetooth: RFCOMM socket layer initialized
[   38.328483] Bluetooth: RFCOMM ver 1.11
[ 1171.588454] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[ 1171.588462] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_fw.bin
[ 1171.589660] Bluetooth: hci0: rom_version status=0 version=1
[ 3599.475358] Bluetooth: hci0: rtl: examining hci_ver=06 hci_rev=000b lmp_ver=06 lmp_subver=8723
[ 3599.475364] Bluetooth: hci0: rtl: loading rtl_bt/rtl8723b_fw.bin
[ 3599.476353] Bluetooth: hci0: rom_version status=0 version=1

[ 2.432072] usb 1-4: new full-speed USB device number 4 using xhci_hcd
[ 2.561475] usb 1-4: New USB device found, idVendor=04f2, idProduct=b49f
[ 2.561481] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 2.561484] usb 1-4: Product: Bluetooth Radio
[ 2.561487] usb 1-4: Manufacturer: Realtek
[ 2.561489] usb 1-4: SerialNumber: 00e04c000001
[16443.840076] usb 1-4: reset full-speed USB device number 4 using xhci_hcd
[41178.579274] usb 1-4: reset full-speed USB device number 4 using xhci_hcd

sudo rfkill list

sudo rfkill unblock bluetooth

sudo apt-get install linux-headers-generic git build-essential
git clone https://github.com/jeremyb31/bluetooth-4.4.git
cd bluetooth-4.4
cp /usr/src/linux-headers-$(uname -r)/.config ./
cp /usr/src/linux-headers-$(uname -r)/Module.symvers Module.symvers
make -C /lib/modules/$(uname -r)/build M=$(pwd) modules
sudo cp btusb.ko /lib/modules/$(uname -r)/kernel/drivers/bluetooth/
sudo modprobe -r btusb
sudo modprobe btusb

cd bluetooth-4.4
make -C /lib/modules/$(uname -r)/build M=$(pwd) clean
cp /usr/src/linux-headers-$(uname -r)/.config ./
cp /usr/src/linux-headers-$(uname -r)/Module.symvers Module.symvers
make -C /lib/modules/$(uname -r)/build M=$(pwd) modules
sudo cp btusb.ko /lib/modules/$(uname -r)/kernel/drivers/bluetooth/
sudo modprobe -r btusb
sudo modprobe btusb