Uploaded November 2024 | Updated September 2026, 2 days ago
How to Install WIDI Core in H4MIDI WC, U4MIDI WC, and Future CME WC Series
Expand your Bluetooth MIDI capabilities with the WIDI Core module! Follow this simple step-by-step guide to self-install your WIDI Core module into the H4MIDI WC, U4MIDI WC, and other future WC MIDI devices by CME.
Installing WIDI Core in H4MIDI WC & U4MIDI WC
Step 1: Prepare Your Device
- Disconnect all cables and external connections from the H4MIDI WC.
Step 2: Open the Outer Shell
- Use easily removable tape or something similar to keep the two LED indicators in place, as shown in the video.
- Use a screwdriver to remove the two screws located under the label on the bottom.
- Carefully open the shell to expose the mainboard.
Step 3: Handle WIDI Core Safely
- Wash your hands to remove static electricity.
- Take the WIDI Core module out of its packaging.
Step 4: Insert WIDI Core Module
- Align the module with the expansion socket on the mainboard.
- Insert it gently at a 90° angle, ensuring proper alignment.
Step 5: Reassemble the Device
- Place the mainboard back into the case.
- Secure it with the screws.
Now you have installed the WIDI Core module, you should start by updating its firmware via WIDI App. You can follow the instructions of any WIDI device to start this procedure and make your first connection: cme-pro.com/widi-master-start-guide-bluetooth-midi
How to Install WIDI Core in H4MIDI WC, U4MIDI WC, and Future CME WC Series
Expand your Bluetooth MIDI capabilities with the WIDI Core module! Follow this simple step-by-step guide to self-install your WIDI Core module into the H4MIDI WC, U4MIDI WC, and other future WC MIDI devices by CME.
Installing WIDI Core in H4MIDI WC & U4MIDI WC
Step 1: Prepare Your Device
- Disconnect all cables and external connections from the H4MIDI WC.
Step 2: Open the Outer Shell
- Use easily removable tape or something similar to keep the two LED indicators in place, as shown in the video.
- Use a screwdriver to remove the two screws located under the label on the bottom.
- Carefully open the shell to expose the mainboard.
Step 3: Handle WIDI Core Safely
- Wash your hands to remove static electricity.
- Take the WIDI Core module out of its packaging.
Step 4: Insert WIDI Core Module
- Align the module with the expansion socket on the mainboard.
- Insert it gently at a 90° angle, ensuring proper alignment.
Step 5: Reassemble the Device
- Place the mainboard back into the case.
- Secure it with the screws.
Now you have installed the WIDI Core module, you should start by updating its firmware via WIDI App. You can follow the instructions of any WIDI device to start this procedure and make your first connection: cme-pro.com/widi-master-start-guide-bluetooth-midi





![How to connect WIDI Jack with macOS X
How to connect WIDI Jack with macOS X
1. Turn on the power of the MIDI device with the WIDI Jack plugged in, and confirm that the blue LED flashes slowly.
2. Click the [Apple icon] on the upper left corner of the screen, click the [System Preferences] menu, click the [Bluetooth icon], and click [Turn Bluetooth On], then exit the Bluetooth settings window.
3. Click the [Go] menu at the top of the screen, click [Utilities], and click [Audio MIDI Setup]
Note: If you dont see the MIDI Studio window, click the [Window] menu at the top of the screen and click [Show MIDI Studio].
4. Click the [Bluetooth icon] at the upper right of the MIDI studio window, find the WIDI Jack that appears under the device name list, and click [Connect]. The WIDI Jack’s Bluetooth icon will appear in the MIDI studio window, indicating the successful connection. Please note, the MIDI studio can now be minimized to run in the background. If no music software is running, macOS will automatically disconnect the Bluetooth MIDI connection after a period to optimize resource usage. That is why it is recommended to keep MIDI studio running and minimize the view of the window.
Check out our product information and latest updates on http://www.BluetoothMIDI.com How to connect WIDI Jack with macOS X](https://i.ytimg.com/vi/EieinyhPvjs/mqdefault.jpg)




