If not, then search for a Windows 8.1 driver (that should exist).
#LENOVO T420 BLUETOOTH DRIVER DOWNLOAD INSTALL#
If there's an available Windows 10 driver, download and install it. Since the driver isn't available (yet) from Windows Update, go to Levovo's drivers download section and find your laptop. It's only to check if your device is actually detected. Open your Device Manager: your Bluetooth device should logically show with a yellow exclamation mark indicating a missing driver. The problem just comes from the fact the manufacturer hasn't provided a Windows 10 driver yet, at least from Windows Update. This article shows other ways to update the BIOS: Only update if if your problem isn't solved. And your USB issue should be solved automatically after updating the BIOS. You will be able to find the missing Bluetooth option in the device manager. After that, restart your system, and you are done. You have to find the suitable menu option to update the BIOS for your system.
Usually, the BIOS update option is in the advanced tab, but just like "x", every BIOS is different.
#LENOVO T420 BLUETOOTH DRIVER DOWNLOAD HOW TO#
If you don't know how to update BIOS drivers, you can follow the following steps. Just find the latest drivers for the BIOS of your motherboard from the manufacturer's site and install it. You don't have to update Windows or install fresh one.
After researching for 4 days, I finally found the solution. The problem is not due to drivers, fast boot or USB problems.
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