Hi, I am about to use HBL2360, though after I connected a power and connected a USB cable to windows PC. The controller did not show up on Roborun plus also on a device manager. A USB status light did not lit. When I connected an RS-232C cable, it did not respond at all. What can I do? Only power light lit in orange. Other LEDs did not lit. This controller worked yesterday but it was unstable, so I tried to update a firmware. During update process, there was some error and has not respond at all since then. Is there any way to access the controller and reinstall the firmware again?