My Lenovo M715q got back its Bluetooth after the manual BIOS update. Yesterday, it suddenly lost connection. I found Bluetooth was gone from the Device Manager even though the BIOS showed as “Enabled”. I tried updating the relating drivers for the network card (Intel AC 9260), then updating M715q system, and finally updating BIOS made it work. Lenovo Vantage didn’t suggest any update. Usually BIOS update isn’t recommended as it carries great risks. However it worked in my case.
Bluetooth Recovery
