January 20

WIDI Thru6 BT: Start Guide

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Step 1: Understanding the WIDI Thru6 BT's signal path

WIDI Thru6 BT is the world's first MIDI Thru box with wireless Bluetooth MIDI functionality. It accurately transmits MIDI messages received by local wired MIDI IN and Bluetooth MIDI IN to multiple MIDI Thru.

The device is powered via standard USB. The USB port is for power only, not MIDI data. If you're looking for a USB MIDI interface, check out the U6MIDI Pro.

Hybrid MIDI Thru: Wired + Wireless MIDI

WIDI Thru6 BT comes with five (5) standard 5-pin MIDI THRU ports and one (1) standard 5-pin MIDI IN port. In addition, a Bluetooth MIDI module with one (1) input + one (1) output across sixteen (16) MIDI channels is integrated.

Combined, the total number of MIDI connections can reach two (2) inputs, which are merged when working simultaneously, and six (6) outputs, which are exact copies of its input(s).

Wired via standard MIDI I/O

The WIDI Thru6 BT can be connected to all MIDI products with a standard MIDI interface, such as: synthesisers, MIDI controllers, MIDI interfaces, keytars, electronic wind instruments, v-accordions, electronic drums, digital pianos, electronic portable keyboards, audio interfaces, digital mixers, etc.

Multiple WIDI Thru6 BTs can be connected in series to form larger systems. When only wired MIDI connections are used, the WIDI Thru6 BT functions as a simple 1-in-5-thru MIDI splitter. It copies incoming MIDI data to its 5 thru ports with virtually zero latency and jitter.

If you are looking for a strictly wired solution as described above, check out the MIDI Thru5 WC as a solution.

Wireless via Bluetooth MIDI

WIDI Thru6 BT will wirelessly connect to BLE MIDI (Bluetooth MIDI) equipped devices and computers, such as: Bluetooth MIDI controllers, iPhones, iPads, Macs, PCs, Android tablets and mobile phones, etc.

Communication via the integrated Bluetooth MIDI (WIDI) module is bidirectional over 16 MIDI channels. In addition, WIDI technology is able to establish advanced Bluetooth MIDI groups with up to five (5) standard Bluetooth MIDI devices, including other WIDI devices.

Through advanced Bluetooth MIDI groups, you can create an additional 1-on-4 or 4-on-1 wireless MIDI setup in which the WIDI Thru6 BT can function as the central device, as well as a peripheral of another central device of a group, such as your WIDI Master.

Setting up 1-to-1 connections via Bluetooth MIDI with third-party operating systems (Windows, Android, macOS and iOS) requires a simple step-by-step procedure to be followed carefully for a quick and smooth start-up.

Both 1-to-1 and 1-to-multiple wireless MIDI configuration are explained in more detail in this quick-start guide.

Let's get you to that point.

WIDI Thru6 hardware explanation

When you open the WIDI Thru6 BT's packaging you will find the following elements:

  1. WIDI Thru6 BT Interface
  2. USB cable for power (not MIDI data)
  3. Quick Start Guide

1. USB Power

WIDI Thru6 BT includes a standard USB TYPE-C connector. You can plug in the included (or another) universal USB Type-C cable to connect a standard USB power source with a voltage of 5V to power the WIDI Thru6 BT.

As a power source, any standard USB (bus) power supply will work. Such as your charger, power bank, your computer's USB connector, or a USB hub.

2. Button

The button on the WIDI Thru6 BT is rarely used. It is only used for special operations and to manually reset your WIDI Thru6 BT to factory settings.

To perform this factory reset, press and hold the button, then turn on the WIDI Thru6 BT until the LED in the centre of the interface flashes slowly 3 times. Then release it again. The interface will manually reset to its factory default configuration.

The second function of the button is to manually force your WIDI Thru6 BT into Bluetooth peripheral mode. To perform this force peripheral operation, press and hold the button for 3 seconds when your WIDI Thru6 BT is powered on and then release the button. The Bluetooth role of the interface will be manually set to "Force Peripheral" mode.

This mode is used to connect to a computer or mobile phone. If the interface has previously been connected to other Bluetooth MIDI devices, this action will disconnect all connections.

Note the difference in operation when the WIDI Thru6 BT is not powered and when it is powered on. In general, force peripheral mode and factory reset are performed via the WIDI App and not via the hardware button.

3. Standard 5-pin DIN MIDI Sockets

As explained earlier, the standard MIDI jacks provide 1-in-5-out over MIDI I/O to connect other MIDI devices via standard MIDI cables.

4. Bluetooth MIDI (WIDI Core)

As explained earlier, WIDI Thru6 BT has a Bluetooth MIDI module with the same function as CME's WIDI Core. Just like any other WIDI device, it provides sixteen (16 ) MIDI channels of bidirectional wireless Bluetooth MIDI communication.

How to set up the wireless connection to third-party operating systems, other WIDI devices and standard Bluetooth MIDI controllers is explained in the remainder of this quick-start guide.

In general, WIDI's Bluetooth MIDI requires a small learning curve. Once you are able to configure your wireless connection and understand the limitations of your operating system's built-in Bluetooth, you will find that a whole new world of possibilities opens up.

After this initial learning curve, you will also be able to move to advanced mode and start working with advanced Bluetooth MIDI groups too.

Before getting started, it is necessary to update the firmware of your WIDI module via the WIDI App. This is also explained in this quick start guide.

Wired: Connecting external MIDI device(s) to WIDI Thru6 BT

The simplest way to use your WIDI Thru6 BT is as a simple 1-in-5-out MIDI Thru box. Follow these instructions to get started and you'll be up and running in no time.

  1. Power the device via the WIDI Thru6 BT's USB port. There's no power switch, just plug in your USB power supply to get started.
  2. Using a 5-pin MIDI cable, connect the MIDI OUT or MIDI THRU of the MIDI device to the MIDI IN connector of the WIDI Thru6 BT. Then connect at least one of the MIDI THRU 1-5 ports of the WIDI Thru6 BT to the MIDI IN of your external MIDI device(s).
  3. When connected, the MIDI messages received by the WIDI Thru6 BT from the MIDI IN port are fully transmitted to the MIDI devices connected to the THRU 1-5 ports and the BLE MIDI Out.
Daisy-chaining multiple WIDI Thru6 BT devices

If you need more than five (5) MIDI Thru ports, you can easily connect multiple WIDI Thru6 BT devices in series. Simply connect the MIDI Thru port of one WIDI Thru6 BT to the MIDI IN port of the next WIDI Thru6 BT with a standard 5-pin MIDI cable.

Note that each WIDI Thru6 BT must be powered separately, you can use a (powered) USB hub as a power supply in this case.

Wireless: Pairing BLE MIDI device(s) with WIDI Thru6 BT

WIDI Thru6 BT works exactly the same as any other WIDI device. Therefore, when referring to a video in this quick start guide, you will find the videos with other identical WIDI devices.

In general, WIDI devices are designed to connect wirelessly to as many third-party devices as possible. To deliver such broad compatibility, our WIDI technology can work in many different ways.

While this may be a little confusing at first, connecting to, for instance, your Windows PC or iOS device's built-in Bluetooth requires a different firmware architecture and connection procedure. This is all integrated into your WIDI Thru6 BT.

When pairing with other Bluetooth MIDI devices, it is important to understand that your wireless connection is only as strong as your weakest link. Built-in Bluetooth from other devices have all kinds of limitations, and are different for each device.

Therefore, it is advisable to consider a WIDI-to-WIDI connection over all others to take advantage of Bluetooth MIDI's most advanced capabilities and best performance.

To start, first update your WIDI Thru6 BT via WIDI App. Again, this requires connecting to a 3rd party device such as iOS or Android. This comes with some challenges that cannot be solved by CME.

Follow the instructions below to easily get started and learn how best to work with Bluetooth MIDI in your setup.

Step 2: Confirm blue (Bluetooth) LED indicator is flashing slowly

WIDI Thru6 BT has two LED indicators. The green LED light near the side of the USB power supply connector indicates if your WIDI Thru6 BT is powered properly. When the power supply is normal, the green LED light will be lit.

The LED light located in the center of the interface indicated the status of your Bluetooth MIDI operations. After you powered your WIDI Thru6 BT, you will need to confirm that this blue LED is flashing slowly. If yes, then everything is normal and you are ready to establish a connection.

If you have two WIDI devices, they are automatically paired together. One of the LED indicators turns turquoise and the other remains constant blue. When you send a message, both LED indicators respond. This means everything is working properly.

When this is the first time you turn on your WIDI Thru6 BT, please proceed to updating its firmware first. The auto-pairing mentioned earlier occupies your WIDI for this process. To avoid auto-pairing at this stage, simply enable a single WIDI device to get started.

Note the different states of the Bluetooth LED indicator in the center of your WIDI Thru6 BT 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.

As the Bluetooth LED status indicator operate exactly the same on each WIDI device, you can watch the video to visually see the difference between the LED indicator states for understanding your wireless connection.

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. Power on WIDI Thru6 BT and make sure it is not connected to other Bluetooth MIDI devices.
  2. Confirm that the status of your WIDI Thru6 BT's Bluetooth 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 Thru6 BT to WIDI App, the device details page will be opened. Next, WIDI App will automatically detect if you need to update its 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 latest Bluetooth 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 Thru6 BT 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 Thru6 BT is similar.

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.

Auto-connect on iOS 16 (and above)

Apple has introduced auto-connect after first pairing with WIDI devices since iOS 16 (and above). If you only use your iOS device for updating, be sure to turn off Bluetooth after completing the process and/or remove WIDI devices from your general Bluetooth list.

This is to avoid problems or other confusion with your WIDI group configurations and automatic connection procedures between WIDI devices.

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 prioritise 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.
Stuck in firmware mode

If you were stuck in the firmware upgrade process of your WIDI Thru6 BT, after clearing its Bluetooth cache as mentioned above, open WIDI App again and the process should restart automatically.

After deleting the Bluetooth cache and upgrading your WIDI Thru6 BT, you are ready for the next step.

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

Step 5: Configure your Bluetooth MIDI connection

Now that you've updated its firmware, your WIDI Thru6 BT central Bluetooth LED indicator should show a slowly flashing blue LED.

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.

When establishing a wireless connection for the first time, always ensure that your WIDI device(s) are available for connection and not (accidentally) occupied via an automatic connection to another device such as your mobile device or another Bluetooth MIDI device.

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. Power on both WIDI devices.
  2. The two WIDI devices will pair automatically.
  3. The blue LED changes from slowly blinking to constant light. When MIDI data is sent or received, such as a MIDI note or MIDI clock, the LED blinks dynamically.

When working with three (3) or more Bluetooth MIDI and/or WIDI devices, it is advisable to create fixed pairs or advanced groups.

This is to avoid random automatic connections and to control how your wireless connections are established. This procedure is explained at the end of this guide.

Auto-connect on iOS 16 (and above)

Apple has introduced auto-connect after first pairing with WIDI devices since iOS 16 (and above). If you only use your iOS device for updating, be sure to turn off Bluetooth after completing the process and/or remove WIDI devices from your general Bluetooth list.

This is to avoid problems or other confusion with your WIDI group configurations and automatic connection procedures between WIDI devices.

Note that all WIDI devices work identically when setting up the connection via Bluetooth. Watch the video below as a guide to connecting your WIDI Thru6 BT in the same way.

Connect WIDI Thru6 BT with another Bluetooth MIDI controller via auto-pairing
  1. Power on the MIDI device with built-in Bluetooth MIDI and your WIDI Thru6 BT.
  2. WIDI Thru6 BT will automatically pair with the other Bluetooth MIDI device.
  3. The blue LED changes from slowly blinking to constant light. When MIDI data is sent or received, such as a MIDI note or MIDI clock, the LED blinks dynamically.
  4. If your WIDI Thru6 BT does not automatically pair with another Bluetooth MIDI device, it may be caused by a compatibility issue. In that case, please check the open source compatibility list first. If not listed contact CME for technical support.

When working with three (3) or more Bluetooth MIDI and/or WIDI devices, it is advisable to create fixed pairs or advanced groups.

This is to avoid random automatic connections and to control how your wireless connections are established. This procedure is explained at the end of this guide.

Auto-connect on iOS 16 (and above)

Apple has introduced auto-connect after first pairing with WIDI devices since iOS 16 (and above). If you only use your iOS device for updating, be sure to turn off Bluetooth after completing the process and/or remove WIDI devices from your general Bluetooth list.

This is to avoid problems or other confusion with your WIDI group configurations and automatic connection procedures between WIDI devices.

Note that all WIDI devices work identically when setting up the connection via Bluetooth. Watch the video below as a guide to connecting your WIDI Thru6 BT in the same way.

Connect WIDI Thru6 BT with macOS via Bluetooth

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 Thru6 BT, 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 via USB. 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. Power on the WIDI Thru6 BT and confirm that the blue LED is blinking 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 Thru6 BT that will appear under the device name list, and click [Connect].
  5. WIDI Thru6 BT'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.

When using multiple WIDI devices to connect to your operating system's built-in Bluetooth, make sure each WIDI device is set to "force peripheral" via the "BLE Role" section of WIDI App.

This 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.

Note that all WIDI devices work identically when setting up the connection via Bluetooth. Watch the video below as a guide to connecting your WIDI Thru6 BT in the same way.

Clear Bluetooth cache on macOS

If you are having problems or if the time to establish a wireless connection takes 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 Thru6 BT with iOS via Bluetooth

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.

Apple has introduced auto-connect after first pairing with WIDI devices since iOS 16 (and above). If you only use your iOS device for updating, be sure to turn off Bluetooth after completing the process and/or remove WIDI devices from your general Bluetooth list.

This is to avoid problems or other confusion with your WIDI group configurations and automatic connection procedures between WIDI devices.

The only way to get around this limitation is to add WIDI Uhost or WIDI Bud Pro to your operating system via USB. 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 Thru6 BT on the MIDI setting page in your app.
  2. Power on the WIDI Thru6 BT and confirm that the blue LED is blinking 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 Thru6 BT 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 Thru6 BT 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 Thru6 BT as the MIDI input device on the settings page, you can start using it.

When using multiple WIDI devices to connect to your operating system's built-in Bluetooth, make sure each WIDI device is set to "force peripheral" via the "BLE Role" section of WIDI App.

This 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.

Note that all WIDI devices work identically when setting up the connection via Bluetooth. Watch the video below as a guide to connecting your WIDI Thru6 BT in the same way.

Clear Bluetooth cache on iOS

If you are having problems or if the time to establish a wireless connection takes 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 Thru6 BT with Windows 10/11 via Bluetooth

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. 

Microsoft has introduced auto-connect after first pairing with WIDI devices since Windows 11. This means that Windows 11 can remember your WIDI device and will automatically connect to your WIDI device after the first pairing is established.

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 Thru6 BT 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 Thru6 BT 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 via USB. This provides you with automatic pairing between two WIDI devices as described earlier.

Follow this exact procedure to wirelessly pair your WIDI Thru6 BT with Windows 10/11 via Korg's BLE MIDI driver:

  1. Please visit Korg's 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. 
    Note: Force peripheral mode 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. Power on the WIDI Thru6 BT to start. 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. If you do not open your music software after this process, the status of your WIDI changes from "connected" to "paired" in the general list of Bluetooth settings. The LED indicator stays on for about 2 seconds and then starts blinking slowly again.

Note that all WIDI devices work identically when setting up the connection via Bluetooth. Watch the video below as a guide to connecting your WIDI Thru6 BT in the same way.

Clear Bluetooth cache on Windows 10/11

If you are having problems or if the time to establish a wireless connection takes longer than 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 Thru6 BT with Android via Bluetooth

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 Thru6 BT, 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 Thru6 BT.

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 via USB. 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].
    Note: If your music app integrates Bluetooth MIDI, you can connect your WIDI device directly in this app. In this case, there is no need to download MIDI BLE Connect.
  2. Power on the WIDI Thru6 BT and confirm that the blue LED is blinking slowly.
  3. Turn on the Bluetooth function of the Android device.
  4. Open the MIDI BLE Connect App, click [Bluetooth Scan], find the WIDI Thru6 BT that appears in the list, and click [WIDI Thru6 BT], 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 Thru6 BT as the MIDI input device on the settings page, then you can start using it.

When using multiple WIDI devices to connect to your operating system's built-in Bluetooth, make sure each WIDI device is set to "force peripheral" via the "BLE Role" section of WIDI App.

This 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.

Note that all WIDI devices work identically when setting up the connection via Bluetooth. Watch the video below as a guide to connecting your WIDI Thru6 BT in the same way.

Clear Bluetooth cache on Android

If you are having problems or if the time to establish a wireless connection takes longer than 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 Thru6 BT 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 a fairly advanced procedure. Before diving into the group setting, a basic understanding of WIDI devices and WIDI App is required. Harnessing its full potential starts with reading this blog and understanding the difference between central and peripheral.

It is highly recommended to work with one or two WIDI devices first and only then dive into the group settings. Also, renaming your WIDI devices via WIDI App is an essential function to easily distinguish your WIDI devices from each other when working with more complex wireless setups.

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.

Auto-connect on iOS 16 (and above)

Apple has introduced auto-connect after first pairing with WIDI devices since iOS 16 (and above). If you only use your iOS device for updating, be sure to turn off Bluetooth after completing the process and/or remove WIDI devices from your general Bluetooth list.

This is to avoid problems or other confusion with your WIDI group configurations and automatic connection procedures between WIDI devices.

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 Thru6 BT to the latest Bluetooth firmware. Then keep only one WIDI device powered on.
    Note: Please remember to avoid having multiple WIDI devices 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 Thru6 BT you want to connect to as it is already occupied.
  3. Set your WIDI Thru6 BT 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 Thru6 BT.
    Note 2: Click the WIDI Thru6 BT 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 devices 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 devices 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 device.
  10. From now on, these WIDI devices will restart and automatically connect as the same group by default.

This group setting allows you to communicate wirelessly between the central unit and its peripherals. You cannot send MIDI messages between peripherals.

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 via USB.

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 Thru6 BT's Bluetooth LED indicator will flash blue slowly.
  5. Turn on up to four (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.

This group setting allows you to communicate wirelessly between the central unit and its peripherals. You cannot send MIDI messages between peripherals.

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, MIDI Tools, start guide, WIDI


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