![]() Check the make and model information on the card and use that information to find suppliers of a replacement card. If you are not offered Realtek Bluetooth drivers, you will need to manually update the drivers. Select Check for Updates again, it should be offered and install as expected. Go to p.69 to view the necessary pre-requisite steps and then the procedure to remove/replace the WLAN card. If you are offered Realtek Bluetooth drivers and they install successfully, then you should now be able to update to Windows 10, version 1909 or Windows 10, version 1903. Here's the hardware maintenance manual for the laptop. If it was already enabled in BIOS but it wasn't showing in Device Manager (did you check "Other Devices" category and also View > Show Hidden Devices in DM as well?) then perhaps it is a faulty WLAN/BT card. ![]() ![]() On p.72-73 it shows all the different hardware components that can be disabled in BIOS under the I/O Port Access sub menu It should now show in Device Manager etc. If it is disabled, enable it, save the changes and restart the laptop. When in BIOS go to Security > I/O Port Access > Bluetooth. Start the laptop and press F1 when the Lenovo logo is displayed on the screen, before it boots into the OS.
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