Ugreen Bluetooth 50 Usb Adapter Cm390 Driver Install File

Before plugging the adapter into your computer, it is best practice to download the correct driver package to prevent Windows from installing a generic, less stable driver.

Turn on your Bluetooth peripheral and put it into (usually indicated by a blinking LED light). On your PC, go to Settings > Bluetooth & devices . Toggle the main Bluetooth switch to On .

Microsoft has pushed stable Realtek drivers via Windows Update. Here is how to force Windows to find them.

immediately after the installation finishes. Step 4: Verify the Installation in Device Manager ugreen bluetooth 50 usb adapter cm390 driver install

Your device now uses the manufacturer driver instead of Microsoft's generic stack.

Plug the Ugreen CM390 into a vacant (black port). USB 3.0 ports (blue) can sometimes cause wireless interference. Wait 30 to 60 seconds for Windows to detect the hardware.

Elena had been staring at the little silver UGREEN CM390 for an hour. It sat in the USB port like a tiny monolith — plugged in, lights blinking, but her Bluetooth speaker stayed silent. Before plugging the adapter into your computer, it

It is rare, but you may have a defective unit. UGreen has a solid 18-month warranty. Return it, but there is a 99% chance that following the manual registry fixes above will resurrect your dongle.

Open your internet browser and navigate to the official .

Manual driver installation is only necessary in two situations: Toggle the main Bluetooth switch to On

Windows loaded a generic Microsoft driver instead of the Realtek driver. The generic driver recognizes the USB device but cannot turn on the Bluetooth radio.

Before installing any new software, complete these preparatory steps to prevent driver conflicts: