Uploaded January 2026 | Updated September 2026, 5 hours ago
Check out our product information and latest updates on cme-pro.com
00:00 Bluetooth MIDI roles
⦁ Bluetooth MIDI has two roles: Central and Peripheral.
⦁ The Central scans, finds, and connects to the Peripheral.
⦁ Two Centrals can’t connect to each other. Two Peripherals can’t connect to each other either.
⦁ Most devices have fixed roles, but iOS and MacOS can choose.
⦁ After connection, communication is two-way.
00:25 One-to-One Rule for Peripherals
⦁ Most Bluetooth MIDI Peripherals can only connect to one Central at a time.
⦁ So if you want to connect it to something else, first you must disconnect the original connection.
00:38 WIDI Roles
⦁ WIDI has two role modes: Auto and Force Peripheral.
⦁ In Auto mode, WIDI switches between Central and Peripheral.
⦁ If it finds a Peripheral, it will connect automatically.
⦁ If a Central detects WIDI, WIDI waits for the Central to make the connection.
⦁ In Force Peripheral mode, WIDI only waits for a Central — it never initiates the connection.
01:02 WIDI Auto-Role Selection
⦁ When WIDI connects to WIDI: one becomes Central, and the other becomes Peripheral.
⦁ When WIDI connects to a computer: the computer is usually Central, and WIDI is automatically Peripheral.
⦁ When WIDI connects to other BLE MIDI devices: WIDI automatically chooses Central.
01:21 Multiple WIDIs to your phone or tablet
⦁ Please power on only one WIDI at a time.
⦁ Use the WIDI App to set it as Force Peripheral.
⦁ Repeat this process for every WIDI device.
⦁ After this, you can power them all on simultaneously and connect them to your phone or tablet.
01:39 WIDI Multi-Connection
⦁ One WIDI Central can connect up to 4 Peripherals.
⦁ When connecting only WIDI Peripherals, please use the “Group” function.
⦁ When connecting WIDI and other brands, please use the “Group Auto-learn” function.
⦁ Note: Peripherals can’t communicate with each other directly. All data goes through the Central first. If the Central supports routing, you will be able to pass messages between the peripherals.
02:05 LED Status
⦁ Slow dark blue blinking means waiting for connection.
⦁ Fast dark blue blinking or solid means connected as a Peripheral.
⦁ Fast turquoise blue blinking or solid means connected as a Central.
⦁ A solid green light is Bootloader mode, which means the firmware needs to be reinstalled.
02:26 Troubleshooting: Firmware upgrade
⦁ Use the WIDI App to upgrade your device to the latest firmware version.
⦁ A factory reset via the app is recommended after the update.
02:38 Troubleshooting: OS connection Issues
⦁ Remove WIDI devices from the Bluetooth menu and toggle Bluetooth off and on to clear your Bluetooth cache.
⦁ Boot WIDIs one at a time to avoid unwanted auto-pairing
02:53 Troubleshooting: Direct connection issues
⦁ If your operating system is occupying the WIDI's Bluetooth connection, please remove the WIDI pairing from the General Bluetooth Settings page.
⦁ This will release the connection, allowing devices to build a direct connection.
03:09 Troubleshooting: No Power or LED not lighting up
⦁ Please check if you are connected to the correct port.
⦁ Ensure the WIDI Master's main adapter is always plugged into the MIDI OUT or THRU port.
⦁ No power is often due to a missing ground on the instrument's MIDI port.
⦁ Please check if the MIDI device provides the required 3.3v or 5v power.
03:31 Troubleshooting: Windows connection issues
⦁ Please upgrade the Windows OS and mainboard Bluetooth driver to the latest version.
⦁ The Korg BLE MIDI driver may need to be in one of the first 10 MIDI device slots, so you might need to uninstall other non-system MIDI devices.
⦁ Removing the WIDI pairing and reconnecting may also resolve the issue.
Check out our product information and latest updates on cme-pro.com
00:00 Bluetooth MIDI roles
⦁ Bluetooth MIDI has two roles: Central and Peripheral.
⦁ The Central scans, finds, and connects to the Peripheral.
⦁ Two Centrals can’t connect to each other. Two Peripherals can’t connect to each other either.
⦁ Most devices have fixed roles, but iOS and MacOS can choose.
⦁ After connection, communication is two-way.
00:25 One-to-One Rule for Peripherals
⦁ Most Bluetooth MIDI Peripherals can only connect to one Central at a time.
⦁ So if you want to connect it to something else, first you must disconnect the original connection.
00:38 WIDI Roles
⦁ WIDI has two role modes: Auto and Force Peripheral.
⦁ In Auto mode, WIDI switches between Central and Peripheral.
⦁ If it finds a Peripheral, it will connect automatically.
⦁ If a Central detects WIDI, WIDI waits for the Central to make the connection.
⦁ In Force Peripheral mode, WIDI only waits for a Central — it never initiates the connection.
01:02 WIDI Auto-Role Selection
⦁ When WIDI connects to WIDI: one becomes Central, and the other becomes Peripheral.
⦁ When WIDI connects to a computer: the computer is usually Central, and WIDI is automatically Peripheral.
⦁ When WIDI connects to other BLE MIDI devices: WIDI automatically chooses Central.
01:21 Multiple WIDIs to your phone or tablet
⦁ Please power on only one WIDI at a time.
⦁ Use the WIDI App to set it as Force Peripheral.
⦁ Repeat this process for every WIDI device.
⦁ After this, you can power them all on simultaneously and connect them to your phone or tablet.
01:39 WIDI Multi-Connection
⦁ One WIDI Central can connect up to 4 Peripherals.
⦁ When connecting only WIDI Peripherals, please use the “Group” function.
⦁ When connecting WIDI and other brands, please use the “Group Auto-learn” function.
⦁ Note: Peripherals can’t communicate with each other directly. All data goes through the Central first. If the Central supports routing, you will be able to pass messages between the peripherals.
02:05 LED Status
⦁ Slow dark blue blinking means waiting for connection.
⦁ Fast dark blue blinking or solid means connected as a Peripheral.
⦁ Fast turquoise blue blinking or solid means connected as a Central.
⦁ A solid green light is Bootloader mode, which means the firmware needs to be reinstalled.
02:26 Troubleshooting: Firmware upgrade
⦁ Use the WIDI App to upgrade your device to the latest firmware version.
⦁ A factory reset via the app is recommended after the update.
02:38 Troubleshooting: OS connection Issues
⦁ Remove WIDI devices from the Bluetooth menu and toggle Bluetooth off and on to clear your Bluetooth cache.
⦁ Boot WIDIs one at a time to avoid unwanted auto-pairing
02:53 Troubleshooting: Direct connection issues
⦁ If your operating system is occupying the WIDI's Bluetooth connection, please remove the WIDI pairing from the General Bluetooth Settings page.
⦁ This will release the connection, allowing devices to build a direct connection.
03:09 Troubleshooting: No Power or LED not lighting up
⦁ Please check if you are connected to the correct port.
⦁ Ensure the WIDI Master's main adapter is always plugged into the MIDI OUT or THRU port.
⦁ No power is often due to a missing ground on the instrument's MIDI port.
⦁ Please check if the MIDI device provides the required 3.3v or 5v power.
03:31 Troubleshooting: Windows connection issues
⦁ Please upgrade the Windows OS and mainboard Bluetooth driver to the latest version.
⦁ The Korg BLE MIDI driver may need to be in one of the first 10 MIDI device slots, so you might need to uninstall other non-system MIDI devices.
⦁ Removing the WIDI pairing and reconnecting may also resolve the issue.
