Bluetooth dongle with rtl8761a or 8761b not working

I have a Bluetooth Dongle with a rtl8761a or 8761b chip in it.
CE gives this while it tries to load the fw:

[1411484.759424@4] DI: DI: tasklet schedule cost 12ms.
[1412620.721732@0] usb 1-1.4: new full-speed USB device number 44 using xhci-hcd
[1412620.846607@0] usb 1-1.4: New USB device found, idVendor=0bda, idProduct=8771
[1412620.846614@0] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[1412620.846616@0] usb 1-1.4: Product: Bluetooth Radio
[1412620.846619@0] usb 1-1.4: Manufacturer: Realtek
[1412620.846622@0] usb 1-1.4: SerialNumber: 00E04C239987
[1412620.856161@0] usb 1-1.4: Unsupported device
[1412620.856846@0] usb 1-1.4: Unsupported device
[1412620.911808@0] Bluetooth: Core ver 2.22
[1412620.911880@0] NET: Registered protocol family 31
[1412620.911882@0] Bluetooth: HCI device and connection manager initialized
[1412620.911894@0] Bluetooth: HCI socket layer initialized
[1412620.911901@0] Bluetooth: L2CAP socket layer initialized
[1412620.911921@0] Bluetooth: SCO socket layer initialized
[1412620.933107@3] usbcore: registered new interface driver btusb
[1412620.935023@4] Bluetooth: hci0: rtl: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
[1412620.935031@4] Bluetooth: hci0: rtl: loading rtl_bt/rtl8761a_config.bin
[1412620.935328@4] bluetooth hci0: Direct firmware load for rtl_bt/rtl8761a_config.bin failed with error -2
[1412620.935334@4] Bluetooth: hci0: Failed to load rtl_bt/rtl8761a_config.bin
[1412620.935337@4] Bluetooth: hci0: rtl: loading rtl_bt/rtl8761a_fw.bin
[1412620.959013@4] Bluetooth: hci0: rom_version status=0 version=1
[1412620.959035@4] Bluetooth: cfg_sz 0, total size 20204
[1412623.057657@3] Bluetooth: hci0 command 0xfc20 tx timeout
[1412631.185271@0] Bluetooth: hci0: download fw command failed (-110)

Can I add the fw files for 8761a/b anywhere?
Here is the DL: https://mpow.s3-us-west-1.amazonaws.com/mpow_MPBH456AB_driver+for+Linux.tgz

The BT dongle is recognized by kernel 5.8.
Here are details for Ubuntu 20.04:


Thx

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