If you are to use mBlock 5 on a PC that runs Windows and is equipped with a non-Bluetooth 4.0 protocol, you need to use a Bluetooth 4.0 dongle to connect a device to mBlock 5. Check the Bluetooth version of your PC before performing other operations.

:::info Note:
Installing the Bluetooth 4.0 driver will automatically disable the system Bluetooth of your PC; you have to uninstall it to restore the system Bluetooth, referring to the section “Uninstall the Bluetooth 4.0 driver to restore the system Bluetooth.” :::

Check the Bluetooth version of a PC that runs Windows

To check the Bluetooth version, perform the following steps:

  1. Press Win+X to open the Start Menu and select Device Manager.

Windows Bluetooth 4.0 User Guide - 图1

  1. Click Bluetooth. You can see multiple Bluetooth devices.

Windows Bluetooth 4.0 User Guide - 图2

  1. Select your Bluetooth brand, right-click it, and choose Properties.

Windows Bluetooth 4.0 User Guide - 图3

  1. Click the Advanced tab and check the firmware version. The LMP number shows the version of Bluetooth your PC is using.

Windows Bluetooth 4.0 User Guide - 图4

The following table describes the LMP versions:

LMP No. Bluetooth Version
LMP 9.x Bluetooth 5.0
LMP 8.x Bluetooth 4.2
LMP 7.x Bluetooth 4.1
LMP 6.x Bluetooth 4.0
LMP 5.x Bluetooth 3.0 + HS
LMP 4.x Bluetooth 2.1 + EDR
LMP 3.x Bluetooth 2.0 + EDR
LMP 2.x Bluetooth 1.2
LMP 1.x Bluetooth 1.1
LMP 0.x Bluetooth 1.0b

Install the Bluetooth 4.0 driver on a PC that runs Windows

To install the Bluetooth 4.0 driver, perform the following steps:

  1. Download Zadig tool.

  2. Run Zadig tool, choose Options and click List All Devices.

Windows Bluetooth 4.0 User Guide - 图5

  1. Choose your device from the drop-down list and click Replace Driver.

Windows Bluetooth 4.0 User Guide - 图6**

Follow the following instructions to check Hardware information:

  1. Press Win+X to open the Start Menu and choose Device Manager.

Windows Bluetooth 4.0 User Guide - 图7

  1. Under Universal Serial Bus devices, find Bluetooth Radio.

Windows Bluetooth 4.0 User Guide - 图8

  1. Right-click Bluetooth Radio, and choose Properties.

Windows Bluetooth 4.0 User Guide - 图9

  1. Select Details, and choose Hardware Ids from the Property drop-down list.

image.png

Uninstall the Bluetooth 4.0 driver to restore the system Bluetooth

  1. Press Win+X to open the Start Menu and choose Device Manager.
    **
    Windows Bluetooth 4.0 User Guide - 图11

  2. Under Universal Serial Bus devices, find Bluetooth Radio.

Windows Bluetooth 4.0 User Guide - 图12

  1. Right-click Bluetooth Radio, and choose Properties.

Windows Bluetooth 4.0 User Guide - 图13

  1. Choose Driver and then click Uninstall Device.

Windows Bluetooth 4.0 User Guide - 图14

  1. Check the box of Delete the driver software for this device, and then click Uninstall.

Windows Bluetooth 4.0 User Guide - 图15

  1. After the uninstallation is complete, restart your computer.