Hello! I have a problem with C20 pico projector. The menu is frozen and there are no reactions to pressing the buttons. Did anyone have this problem? Could anyone share the firmware upgrade software C20_FW_MSTUPUP.BIN and C20_FW_AMAMUPUP.BIN. I found the names in the service manual. The reason for searching those files because I think it is an operation software problem. Please Help!