Tablet Cube i9, Ubuntu 15.10. Can't find Bluetooth.

ludvig@ludvig-cube-i9:~$ cd rtl8723bu_bt
ludvig@ludvig-cube-i9:~/rtl8723bu_bt$ make
make -C /lib/modules/4.2.0-35-generic/build M=/home/ludvig/rtl8723bu_bt modules
make[1]: Entering directory '/usr/src/linux-headers-4.2.0-35-generic'
CC [M] /home/ludvig/rtl8723bu_bt/rtk_btusb.o
/home/ludvig/rtl8723bu_bt/rtk_btusb.c:41:2: error: #error "This repo is only for keels older than 4.1.0. For keel 4.1 or later, use the keel branch."
#error "This repo is only for keels older than 4.1.0. For keel 4.1 or later
. ^
/home/ludvig/rtl8723bu_bt/rtk_btusb.c: In function ‘btusb_intr_complete’:
/home/ludvig/rtl8723bu_bt/rtk_btusb.c:168:7: error: implicit declaration of function ‘hci_recv_fragment’ [-Werror=implicit-function-declaration]
if (hci_recv_fragment(hdev, HCI_EVENT_PKT,
. . .^
/home/ludvig/rtl8723bu_bt/rtk_btusb.c: In function ‘btusb_close’:
/home/ludvig/rtl8723bu_bt/rtk_btusb.c:575:18: error: ‘NUM_REASSEMBLY’ undeclared (first use in this function)
for (i = 0; i
. . . . . . . . . . . . ^
/home/ludvig/rtl8723bu_bt/rtk_btusb.c:575:18: note: each undeclared identifier is reported only once for each function it appears in
/home/ludvig/rtl8723bu_bt/rtk_btusb.c:576:10: error: ‘struct hci_dev’ has no member named ‘reassembly’
if(hdev->reassembly[i]) {
. . . . . . . ^
/home/ludvig/rtl8723bu_bt/rtk_btusb.c:577:18: error: ‘struct hci_dev’ has no member named ‘reassembly’
kfree_skb(hdev->reassembly[i]);
. . . . . . . . . . . . . . . ^
/home/ludvig/rtl8723bu_bt/rtk_btusb.c:578:8: error: ‘struct hci_dev’ has no member named ‘reassembly’
hdev->reassembly[i] = NULL;
. . . . . ^
cc1: some waings being treated as errors
scripts/Makefile.build:264: recipe for target '/home/ludvig/rtl8723bu_bt/rtk_btusb.o' failed
make[2]: *** [/home/ludvig/rtl8723bu_bt/rtk_btusb.o] Error 1
Makefile:1398: recipe for target '_module_/home/ludvig/rtl8723bu_bt' failed
make[1]: *** [_module_/home/ludvig/rtl8723bu_bt] Error 2
make[1]: Leaving directory '/usr/src/linux-headers-4.2.0-35-generic'
Makefile:15: recipe for target 'all' failed
make: *** [all] Error 2