I set system menu to English languge. I can see in the " Root " that show the name song to be Thai languge when I play file Thai song MP3 by USB. But the main display cannot show Thai languge. It show the unread languge. If I chang the system menu to Thai , I can see the Thai languge on Root and display. So, the display should show the languge same as the " Root " songs whatever the system menu in Thai or English.