something wrong with alcatel mmk keybroad

[twc233]

Once i got an alcatel mmk keybroads(wiki/Alcatel_MMK_Keyboard) with usb plug built in 2011. A few mounthes ago, it can used on windows system. But today when i connect it to my computer, the computer seems have no action, and the numlock,capslock,scroll lock leds on the keybroad are on, and no action when press any keys. It seems like it is 'locked'. Does anyone know what's the problem? Looking for reply.

[Muirium]

Controller sounds broken. Maybe a leaking capacitor?