We have released system updater that provides iOS13/iPadOS13 support
for the BLE-MIDI (Bluetooth LE) connection functionality of KORG controller products.
A firmware update is required if any of the following occur.
・Cannot connect to an iOS13 device
・Cannot play, even after successfully connecting to an iOS13 device
・ Connection to an iOS13 device is immediately cut off
* To perform the update, connect the controller to your Mac or Windows PC via a USB connection.
* Once the firmware has been updated, restart the iOS device that you want to connect to your BLE-MIDI device : "How to restart your iOS device"
Please see more information：https://www.korg.com/us/news/2019/112903/
Thank you for your continued use of KORG controller products.