@bilen, I dont think 1 beep is 'coz of me region. rather its about corrupt bios. So try this bios extracted from lenovo update merged with your bios dump.Post result.
Provide the full machine model number, serial number (or Service tag, SNID) and the board model number (see https://www.badcaps.net/forum/showthread.php?t=88758 ) ,The serial number, make, full model number, motherboard model and revision (except QR codes) must be written/typed at your request as per the rules. Not as a picture, part of the file name and so on.
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