Excuse my English too. It sounds that the firmware to this TV has been corrupted by any way. A firmware update might be necessary. There is booting problem. If you wish to know more abut firmware update, check the site linked below. It has details to firmware update procedure to many brand TVs with illustrations. Beware, you must be sound in electronics to follow. http://electronicshelponline.blogspot.com/
up previous posts there, either by its left side bar, or view it in Timslide
option. The site is in English language, but have translation option, which can be pulled out from the right side of the display window.