x220 Intel Dual Band 7260 with working Fn+F5

[blck7t]

1. uninstall all of the BT drivers
2. in Device manager click on Scan for hardware changes and disable Generic Bluetooth Adapter (not sure what it was called before uninstalling drivers)
3. turn off this fabulous machine, install 7260 module, turn it on
4. install BT drivers (BT_21.10.1_64_Win7.exe)

Fn+F5 and LED indicator works as before.