HHKB stopped working

[Mr.Bean]

My beloved HHKB just stopped working The keyboard is still visible to my pc and i can flash the firmware (using hasu controller) but no input is registered. Any ideas?

[scottc]

Stupid question but good to rule out first: have you made sure the ribbon cable is connected to the controller correctly? Tried removing and re-seating it?

[Mr.Bean]

Tried swapping controllers and the original works fine. I wonder if there is a way to do hard reset on hasu's controller.

[Mr.Bean]

Got some help from hasu

Plug with holding Space and Backspace key to clear BootMagic configuration.

This fixed my issue.