x1403za main board r2.1 bios clear my back up pls. serial number NBN0CV10581747C board id X1403ZA MAIN BOARD R2.1 model x1605z file bin https://drive.google.com/file/d/1w_3Mb_ayepOetPr2X6cW5QN3Mk5CODEg/view?usp=sharing