September 19

WIDI Jack: Start Guide

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Step 1: Plug your WIDI Jack into your MIDI device

WIDI Jack has two 2.5mm mini TRS MIDI sockets to transmit and receive MIDI data wirelessly. In addition, it provides a USB-C power socket.

The USB-C port is for power only. Not for data. You can use this when your MIDI device does not power your WIDI Jack via the MIDI Out port.

To start, make sure you have the correct MIDI cables. A variety of optional accessory cables is sold separately to expand usage scenarios.

First, connect the mini TRS socket marked with 🔼 at the bottom of your WIDI Jack to the MIDI OUT port of your MIDI device with the optional accessory cable.

Next, connect the mini TRS socket marked with đź”˝ at the bottom of your WIDI Jack to the MIDI IN of your MIDI device.

USB power and polarity switch

If needed, you can use any standard 5 volt USB power source to power your WIDI jack. For example your USB charger, power bank, USB hub or the USB connection of your computer.

The slide switch on the back of the WIDI jack can be used to switch the input polarity of the mini TRS jack to suit two different TRS MIDI cable specifications. Namely Type-A or Type-B.

CME's optional TRS cables are Type-B. To determine whether your MIDI device is Type-A or Type-B, refer to your MIDI device's manual or consult the manufacturer.

If you find that no MIDI messages can be sent or received between your WIDI jack and the connected MIDI device, try toggling this switch.

For your convenience, a magnet on the back of the WIDI socket allows you to easily place it on any surface via the supplied magnetic sticker.

Watch the video below explaining this process.

Step 2: Confirm blue LED indicator is flashing slowly

Now that you have connected your WIDI Jack, all you need to do is confirm that the blue LED is flashing slowly. If yes, then everything is normal and you are ready to establish a connection.

Note the different states of the LED indicator for your reference:

  • Blue LED flashes slowly: the device starts normally and waits for connection.
  • Blue LED light stays on constantly: the device has been successfully connected.
  • Blue LED flashes quickly: the device is connected and is receiving or sending MIDI messages.
  • Light blue (turquoise) LED: the device has (automatically) taken on the central role and is connected to one or more peripherals.
  • Green LED: The device is in firmware upgrade mode. Use the iOS or Android WIDI App to connect and upgrade the firmware.

Watch the video to visually see the difference between the LED indicator states.

Step 3: Update firmware via WIDI App

WIDI App is a free tool for iOS and Android and runs on your mobile device. It is not available on Windows or macOS computers.

Basically it is used for three main operations:

  1. Upgrade firmware
  2. Personalise settings
  3. Set up groups
Download WIDI App

In this step you just follow the procedure for updating your WIDI firmware. For all other operations, feel welcome to refer to the WIDI App manual.

To get started, first download the WIDI app for iOS or Android.

Connect with WIDI App

After installing WIDI App, turn on the Bluetooth and location information switches in your mobile device's system settings.

After that, make sure that the distance between the device and the WIDI product is no more than 10 meters (33 feet).

Keep in mind that there are many different mobile devices that all work in a slightly different way. Make sure to follow the exact steps as described here to make the process easier.

  1. Connect your WIDI Jack as described in the previous step and make sure it is not connected to other Bluetooth MIDI devices.
  2. Confirm that the status of your WIDI Jack's LED is blue and blinking slowly.
  3. Connect your mobile device to the internet and launch WIDI App
  4. WIDI App will automatically scan for all nearby WIDI devices available for connection and display them in the list.
    Note: If you have multiple WIDI devices active and they are not listed, they have automatically paired to each other and will no longer be advertising to pair with WIDI App. Make sure to enable only one WIDI device at this stage.
  5. Click the name of the WIDI device for which you want to update the firmware.
  6. WIDI App will pop up a [Bluetooth Pairing Request] prompt window. Please click [Pair] to connect and enter the details page of the WIDI device.

If it is the first time to run WIDI App, it may pop up [Allow WIDI to use wireless data?] and [Allow WIDI to access this device’s location?] prompt windows.

In this case please click [Wireless LAN and cellular network] or [Wireless LAN only], and [Always Allow] location information (this item is necessary for connecting Bluetooth MIDI devices for setting and upgrading permissions).

Update firmware

After connecting your WIDI Jack to WIDI App, the device details page will be opened. Next, WIDI App will automatically detect if you need to update the Bluetooth firmware.

  1. In the pop-up window you can select [Update Bluetooth Firmware]. If there is no pop-up, scroll down and click [Update Bluetooth Firmware] at the bottom of the device details page.
  2. The previous operation will open the firmware details page. Now you can select the firmware version and click [Start].
  3. The update process starts automatically and lasts for 2 minutes with a steady progress.
  4. The progress bar will show the firmware download and writing progress in real time. You can confirm, the LED light of your WIDI device will turn green during the process and flash quickly.
  5. After the Bluetooth firmware is updated, click [OK]. Your WIDI Jack will automatically restart with the new firmware, and WIDI App will automatically return to the device list page.
    Note: As an optional extra step, do a factory reset to ensure all settings are back to default. This can be the solution if you have encountered problems before.

Please take your time to watch the full process via the videos below. They show the firmware process with WIDI Master. The process for WIDI Jack is identical.

If you find yourself stuck in firmware mode or experiencing abnormal connection times, you probably need to clear your mobile device's Bluetooth cache as described in step 4.

Update firmware via iOS
Update firmware via Android

Step 4: Clear Bluetooth cache of your mobile device

Your mobile device is a perfect device for Bluetooth. That said, Bluetooth MIDI is a pretty special way to use Bluetooth technology. Both Android and iOS devices prioritize basic consumer-level operations over your niche music production operations with Bluetooth MIDI.

It is important to understand that if you are having trouble connecting to your WIDI device, for instance after updating the WIDI firmware, it is highly recommended that you follow a simple procedure to reset your device's Bluetooth cache.

  1. Open your mobile device's general Bluetooth settings.
  2. Remove all existing WIDI devices from this general list.
  3. Turn Bluetooth off and on again to reset the Bluetooth cache..
    Note: In some cases, you may even need to reboot your mobile device.
  4. Your mobile device is now ready to establish a new connection.

Watch the videos below with a detailed description on how to clear Bluetooth cache for iOS or Android.

Clear Bluetooth cache for iOS
Clear Bluetooth cache for Android
Stuck in firmware mode

If you were stuck in the firmware upgrade process of your WIDI Jack, now just open the WIDI app again and the process should restart automatically.

After deleting the Bluetooth cache and upgrading your WIDI Jack, you are ready for the next step. Let's set up your first Bluetooth MIDI connection.

Step 5: Configure your Bluetooth MIDI connection

Now that you've plugged in your WIDI Jack, made sure it's powered on properly, and updated the Bluetooth firmware, your WIDI Jack should flash its blue LED slowly.

This means it is ready to use and available to connect wirelessly via Bluetooth. As you may understand, there are many ways to implement WIDI in your MIDI setup.

In summary, there are the following scenarios:

It is strongly recommended that you follow the procedure exactly to set up your preferred scenario. After you understand the difference between automatic pairing and manual pairing with computers and mobile devices, you're ready to move into advanced mode to create groups and personalize settings.

Let's start at the beginning and go through each scenario as mentioned above.

Connect two WIDI devices via auto-pairing
  1. Turn on both MIDI devices that have WIDI Jack or other WIDI devices plugged in.
  2. The two WIDI devices will pair automatically.
  3. The blue LED will change from slow flashing to constant light (when there is MIDI data sending, the LED light will flash dynamically).
Connect WIDI Jack with another Bluetooth MIDI controller via auto-pairing
  1. Turn on both the MIDI device with your WIDI Jack plugged in and the other Bluetooth MIDI device.
  2. WIDI Jack will automatically pair with the other Bluetooth MIDI device.
  3. The blue LED will change from slow flashing to constant light (when there is MIDI data sending, the LED light will flash dynamically)
  4. If WIDI Jack cannot automatically pair with another Bluetooth MIDI device, it may be caused by a compatibility issue. In that case, please contact CME for technical support.
Connect WIDI Jack with macOS

Please note that pairing with macOS's built-in Bluetooth MIDI cannot be done via automatic pairing. This is in the design of the operating system. This means that every time you restart your computer or WIDI Jack, you have to manually establish a new connection.

The only way to get around this limitation is to add WIDI Uhost or WIDI Bud Pro to your operating system. This provides you with automatic pairing between two WIDI devices as described earlier.

If you want to connect to macOS via its integrated Bluetooth MIDI, follow the instructions below carefully.

  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 the [Audio MIDI Setup].
    Note: If you don't 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, locate WIDI Jack that will appear under the device name list, and click [Connect]. 
  5. WIDI Jack’s Bluetooth icon will appear in the MIDI studio window, indicating the connection has been successfully established. 
  6. You can exit all setting windows now and open up your music software application and wirelessly transmit MIDI.
Clear Bluetooth cache on macOS

If you are having problems or if the connection time is longer than 1 minute, you most likely need to clear the Bluetooth cache of macOS. In that case, follow the exact instructions as shown in this video.

Connect WIDI Jack with iOS

Please note that pairing with iOS's built-in Bluetooth MIDI cannot be done via automatic pairing. This is in the design of the operating system. This means that every time you restart your computer or WIDI Jack, you have to manually establish a new connection.

The only way to get around this limitation is to add WIDI Uhost or WIDI Bud Pro to your operating system. This provides you with automatic pairing between two WIDI devices as described earlier.

If you want to connect to iOS via its integrated Bluetooth MIDI, follow the instructions below carefully.

  1. Go to the Apple AppStore to search and download the free application [midimittr].
    Note: If the app you are using already has a Bluetooth MIDI connection function, please directly connect to the WIDI Jack on the MIDI setting page in your app.
  2. Turn on the power of the MIDI device with the WIDI Jack plugged in and confirm that the blue LED flashes slowly.
  3. Click the [Settings] icon to open the settings page, click [Bluetooth] to enter the Bluetooth setting page, and slide the Bluetooth switch to turn on the Bluetooth functionality.
  4. Open the [midimittr] app, click the [Device] menu at the bottom right of the screen, locate WIDI Jack that will appear in the list, click [Not Connected], and click [Pair] on the Bluetooth pairing request pop-up window.
  5. The status of WIDI Jack in the list will be updated to [Connected], indicating that the connection has been successfully established. 
  6. Press the home button of your iOS device to minimize the [midimittr] app and keep it running in the background.
  7. Open the music app that can accept external MIDI input and select WIDI Jack as the MIDI input device on the settings page, you can start using it.
Clear Bluetooth cache on iOS

If you are having problems or if the connection time is longer than 1 minute, you most likely need to clear the Bluetooth cache of iOS. In that case, follow the exact instructions as shown in this video.

Connect WIDI Jack with Windows 10/11

Please note that pairing with Windows 10/11's built-in Bluetooth MIDI cannot be done via automatic pairing. This is in the design of the operating system. This means that every time you restart your computer or WIDI Jack, you have to manually establish a new connection.

Before you start pairing, make sure your music software is compatible with Microsoft's latest UWP API. This makes it possible to use the Bluetooth class compliant MIDI driver that comes standard with Windows 10/11.

Most software developers have not yet integrated this compatibility for various reasons. At the time of writing, only Bandlab's Cakewalk and Steinberg's latest Cubase and Nuendo have natively integrated this compatibility.

This means that when you use these specific software tools, you can pair WIDI Jack or other standard Bluetooth MIDI devices without the need for drivers.

The alternative is to install a virtual MIDI port driver such as Korg's BLE MIDI driver.

If your WIDI Jack is updated to the latest firmware version, the Korg BLE MIDI driver for Windows 10/11 is fully supported and even multiple WIDI devices can be connected simultaneously with two-way MIDI data transfer.

For older Windows operating systems and to bypass the limitations of Windows 10/11 onboard Bluetooth MIDI ecosystem, you can add WIDI Uhost or WIDI Bud Pro to your operating system. This provides you with automatic pairing between two WIDI devices as described earlier.

Follow this exact procedure to wirelessly pair your WIDI Jack with Windows 10/11 via Korg's BLE MIDI driver:

  1. Please visit Korg official website to download the BLE MIDI Windows driver.
  2. After unpacking the driver files with the decompression software, click the .exe file to install the driver Note: You can check whether the installation was successful in the sound, video, and game controller list of the device manager.
  3. Please use WIDI App to upgrade the Bluetooth firmware of the WIDI device to v0.1.3.7 or later. At the same time, please set the upgraded WIDI device to "Force Peripheral" in the "BLE role" section. 
    NoteThis will avoid automatic pairing when multiple WIDI devices are used at the same time. If necessary, you can rename each WIDI device after the upgrade is completed. This way you will be able to distinguish each WIDI device when you use them at the same time.
  4. Make sure that Windows 10/11 and your computer's Bluetooth driver are updated to the latest version (the computer must be equipped with Bluetooth 4.0/5.0 functionality).
  5. Plug your WIDI Jack into the MIDI device, turn on the power to start your WIDI. In Windows, click "Start" - "Settings" - "Devices", open the "Bluetooth and other devices" window, turn on the Bluetooth switch, and click "Add Bluetooth or other devices".
  6. After entering the "Add Device" window, click "Bluetooth", click the WIDI device name listed in the device list, and then click "Connect".
  7. If you see "Your device is ready to go", please click "Done" to close the window (after connecting, you can see your WIDI device in the Bluetooth list of the device manager).
  8. Please follow steps 5 to 7 to connect other WIDI devices to Windows 10/11
  9. Open the music software. In the MIDI settings window, you should be able to see the WIDI device name appearing in the list (Korg BLE MIDI driver will automatically detect the WIDI Bluetooth connection and associate it with the music software). 
  10. Now select the desired WIDI as the MIDI input and output device and you are good to go.

Since this procedure can be quite challenging, see the video below for the full step-by-step explanation.

Clear Bluetooth cache on Windows 10/11

If you experience issues or the connection time exceeds 1 minute, it is most likely you will need to clear the Bluetooth cache of your Windows operating system. In that case, follow the exact instructions as shown in this video.

Troubleshooting: WIDI and Korg BLE MIDI drivers on Windows 10/11

In some cases, Korg's BLE MIDI driver causes problems connecting to your WIDI device. If you can't solve your problem by clearing the Bluetooth connection cache mentioned above, there are a few things you can do.

First of all, make sure that both your Windows 10/11 and your computer's Bluetooth driver are upgraded to the latest version.

In addition, your PC, laptop or computer with WIndows 10/11 must be equipped with Bluetooth 4.0/5.0 functionality.

Besides this, it is known that when working with Korg's BLE MIDI driver, it must be in the first ten slots of your Windows non-system MIDI device list.

Otherwise, you will see your WIDI device in the Bluetooth list of Windows and you will be able to pair it, but you will not be able to access it from any software.

Follow these exact instructions to resolve this issue:

  1. Install Korg USB MIDI driver and utilities
  2. Run the Uninstall KORG USB MIDI program
  3. Click the "Option" button
  4. Deselect the "Delete KORG MIDI Device Only" checkbox and click "OK"
  5. Select checkbox for KORG BLE-MIDI
  6. Select checkboxes for other NON-SYSTEM MIDI devices until only 10 MIDI devices are left
    Note: You may need to reinstall MIDI drivers for your devices after doing this.
  7. Click "Next"
  8. Click "Finish"
  9. Right-click Start >> Click "Apps and Features"
  10. Uninstall KORG BLE-MIDI Driver for Windows
  11. Reinstall KORG BLE-MIDI Driver for Windows
  12. Restart (may not be necessary, but just do it)
  13. Connect your WIDI device via Bluetooth

The above mentioned should fix the majority of the known issues. If you are still experiencing problems, please do not hesitate to reach out via support.

Connect WIDI Jack with Android

Please note that pairing with the built-in Bluetooth MIDI of Android devices cannot be done via automatic pairing. This is in the design of the mobile operating system. This means that every time you restart your mobile device or WIDI Jack, you have to manually reconnect.

As with Windows, the Android music app you use must integrate the Android operating system's universal Bluetooth MIDI driver in order to communicate directly with your WIDI Jack.

Most music apps have not integrated this functionality for various reasons. Therefore, you need to use an additional app designed to act as a bridge for connecting Bluetooth MIDI devices.

To bypass the limitations of Android's onboard Bluetooth , you can add WIDI Uhost or WIDI Bud Pro to your operating system. This provides you with automatic pairing between two WIDI devices as described earlier.

If you decide to work directly with your Android device's built-in Bluetooth, follow these exact instructions to set it up.

  1. Go to the PlayStore to search and download the free application [MIDI BLE Connect].
  2. Turn on the power of the MIDI device with the WIDI Jack plugged in and confirm that the blue LED flashes slowly.
  3. Turn on the Bluetooth function of the Android device.
  4. Open the MIDI BLE Connect App, click [Bluetooth Scan], find the WIDI Jack that appears in the list, and click [WIDI Jack], it will show that the connection is created successfully. 
  5. At the same time, the Android system will send a Bluetooth pairing request notification. Please click on the notification and accept the pairing request.
  6. After this you can press the home button on the Android device to minimize the MIDI BLE Connect App and keep it running in the background.
  7. Open the music app that accepts an external MIDI input and select WIDI Jack as the MIDI input device on the settings page, then you can start using it.

As this procedure can be quite challenging, please refer to the video below for visual support.

Clear Bluetooth cache on Android

If you experience issues or the connection time exceeds 1 minute, it is most likely you will need to clear the Bluetooth cache of your Android device. In that case, follow the exact instructions as shown in this video.

Step 6: Go into advanced mode with Bluetooth MIDI groups

With the latest firmware, your WIDI Jack supports WIDI groups. Also called Bluetooth MIDI groups. Group connections enable two-way data transfer from 1-to-4 (MIDI Thru) and 4-to-1 (MIDI Merge). And it supports simultaneous use of multiple groups.

In addition, the group mode is often used to create fixed pairs. This is especially useful if you have multiple WIDI devices and want to make sure that the connection is fully established as you preset. This is to prevent arbitrary automatic linking between WIDI devices.

Keep in mind that this is quite an advanced procedure. Before diving into group setting, a basic understanding of WIDI devices and the WIDI app is required to take full advantage of this feature.

It is strongly recommended to work with one or two WIDI devices first and only then dive into the group settings.

In short, there are two ways to set up your group(s).

Before you start, make sure the following is set up correctly for each WIDI device that will be part of the group.

  1. Update each WIDI device to the latest firmware
  2. Delete existing group settings via WIDI app
  3. Set your WIDI device to "Force Peripheral" via WIDI app

Remember that "Force Peripheral" is intended to avoid pairing issues when working with multiple WIDI devices at the same time. If this has not been set up before, WIDI App will not be able to detect the WIDI devices you want to add to your group as they will be occupied already as a result of auto-pairing.

When working in group mode, always make sure that all group members are connected. If a device is missing from the group, the central device will continue to scan for it, negatively impacting your latency performance.

WIDI groups via WIDI App for WIDI devices

Please note this simplified step by step guide and associated video. If you want to go into more detail, please visit this blog or check the manual of WIDI App.

  1. Open the WIDI App (Version 1.4.0 or higher)
  2. Upgrade WIDI Jack to the latest Bluetooth firmware. Then keep only one WIDI Jack powered on.
    Note: Please remember to avoid having multiple WIDI Jacks powered on at the same time. Otherwise, they will automatically pair one to one. This will cause the WIDI App to fail in finding the WIDI Jack you want to connect to as it is already occupied.
  3. Set your WIDI Jack as “Force Peripheral” role and rename it.
    Note 1: After the BLE role is set as “Force Peripheral”, the setting will be automatically saved in the WIDI Jack.
    Note 2: Click the WIDI Jack device name to be renamed. The new name will be effective once restarted.
  4. Repeat the above steps to set all WIDI devices to be added to the group.
  5. After all WIDI Jacks are set to the “Force Peripheral” role, they can be powered on at the same time.
  6. Click the "Group" menu, and then click "Create New Group".
  7. Enter the name of the group.
  8. Drag and drop the WIDI Jack to the central and peripheral positions. Each group has always one central WIDI device. The number of peripherals can vary from 1 to 4.
  9. Click "Download Group". The setting will be saved in the central WIDI Jack.
  10. From now on, these WIDI devices will restart and automatically connect as the same group by default.
Delete group settings

If you want to forget the group connection settings, please use the WIDI App to connect to the WIDI device with "Central" role and click "Remove Group Settings". Again, only power on this central device to allow the pairing with WIDI App. If you power on multiple group devices, they will automatically connect as a group. This will make it impossible for the WIDI App to make to connection as they will already be occupied.

Delete Bluetooth cache

Please note that if you experience issues after updating your WIDI devices or during the set up process with WIDI app, it might be you will need to clear the Bluetooth cache of your mobile device.

Especially when setting up a WIDI group for the first time, this can be a bit challenging. That is why it is called advanced mode. For your convenience a video guide is provided underneath.

Group auto-learn

Please note this simplified step by step guide and associated video. If you want to go into more detail, please also check the manual of WIDI App.

Group auto-learn is an additional feature to set up your WIDI group in an automated process. Also, the group auto-learn mode allows you to add third-party Bluetooth MIDI devices to your WIDI group.

Therefore, this mode is also called Bluetooth MIDI groups.

Please note that all group data must be stored in the central WIDI device. This can only be a WIDI device. Bluetooth MIDI devices from other brands can only function as peripherals of the main WIDI device.

Please note that iOS, Windows 10 and Android are not eligible for Bluetooth MIDI groups. They can only be part of the group for as long as the session lasts. That is because their Bluetooth address changes after restart or even every 15 minutes and cannot be saved in the group settings.

This is in the design of those operating systems and can only be circumvented by adding WIDI Uhost or WIDI Bud Pro to those operating systems.

The only exception is macOS. Just click "Advertise" in MIDI Studio's Bluetooth configuration and it will be able to be scanned in the process.

For more detailed information on group auto-learn and working with iOS, macOS, Android or Windows in group mode, please refer to this blog for a better understanding.

To benefit from group auto-learn, please follow the exact instruction as shared below.

  1. Update each WIDI device to the latest firmware version.
  2. Set all WIDI devices to “Force Peripheral” to avoid auto-pairing between WIDI devices.
  3. Enable “Group Auto Learn” for the central WIDI device.
  4. Close WIDI app. Your WIDI Jack LED indicator will flash blue slowly.
  5. Turn on up to 4 BLE MIDI peripherals (including WIDI) for automatic pairing with the WIDI central device.
  6. When everything is connected, press the button on the WIDI central device to store the group in its memory. The LED indicator of your WIDI is green when pressed and turns turquoise when released.
Delete group settings

If you want to forget the group connection settings, please use the WIDI App to connect to the WIDI device with "central" role and click "Remove Group Settings".

Only power on this central device to allow the pairing with WIDI App. If you power on multiple group devices, they will automatically connect as a group. This will make it impossible for the WIDI App to make to connection as they will already be occupied.

For your convenience a video guide is provided underneath.


Tags

Bluetooth MIDI, customer care, WIDI, Wireless MIDI


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