07-11-2015, 01:18 PM
I want to add more info related to Bluetooth enabling after applying whitelist BIOS on different card.
Recently I replaced my Intel AC7260 with Broadcom BCM94360HMB (taken from ASUS X99 Deluxe WiFi Go module). This card is the only 3x3:3 802.11ac (1300Mbps) + BT 4.0 Half Size Mini PCI-E I know (Lenovo X230 Tablet can only take half size mini PCI-E on WLAN slot). The WiFi works ok, but no Bluetooth was shown on the Device Manager. I tried #51 pin kapton tape trick twice, but it doesn't work with this card and pressing Fn+F5 only give WLAN and WWAN switches, no Bluetooth.
To troubleshoot the problem, I put the old Lenovo proprietary Bluetooth adapter together with BCM94360HMB card and try the Fn+F5 again, now both Bluetooths shown on Device Manager. My suspicion is the Lenovo X230 Tablet doesn't even know if BCM94360HMB has Bluetooth on it and decide not to switch the Bluetooth on. I took a look at the board contact and checked the voltage status while both card was plugged in. The #51 pin voltage was +3.3V when Bluetooth is on and 0V when it's off. I think it's the opposite with Intel AC7260, I don't really remember.
In attempt to solve the problem, I soldered a short 30AWG wire from pin #51 to pin #48 (the closest pin with always on +3.3V) to enable the Bluetooth all the time. The trick works like a charm
Recently I replaced my Intel AC7260 with Broadcom BCM94360HMB (taken from ASUS X99 Deluxe WiFi Go module). This card is the only 3x3:3 802.11ac (1300Mbps) + BT 4.0 Half Size Mini PCI-E I know (Lenovo X230 Tablet can only take half size mini PCI-E on WLAN slot). The WiFi works ok, but no Bluetooth was shown on the Device Manager. I tried #51 pin kapton tape trick twice, but it doesn't work with this card and pressing Fn+F5 only give WLAN and WWAN switches, no Bluetooth.
To troubleshoot the problem, I put the old Lenovo proprietary Bluetooth adapter together with BCM94360HMB card and try the Fn+F5 again, now both Bluetooths shown on Device Manager. My suspicion is the Lenovo X230 Tablet doesn't even know if BCM94360HMB has Bluetooth on it and decide not to switch the Bluetooth on. I took a look at the board contact and checked the voltage status while both card was plugged in. The #51 pin voltage was +3.3V when Bluetooth is on and 0V when it's off. I think it's the opposite with Intel AC7260, I don't really remember.
In attempt to solve the problem, I soldered a short 30AWG wire from pin #51 to pin #48 (the closest pin with always on +3.3V) to enable the Bluetooth all the time. The trick works like a charm