FAQ - How should I report my USB-MIDI issue?

To a professional MIDI users, a MIDI setting is rather easy job. However to a MIDI starters, most of them meet very similar issues i.e. MIDI Settings. So we need your help of sending us the following basic information.

1. Operation System (OS) and version number.
2. MIDI App name & version.
3. The connection of your speaker / earphone. (On computer or On Piano Keyboard?)
4. Keyboards power supply method. - Is it an official external power adapter or other USB cable powered?