hi guys is there any working method to relock bootloader after return to stock CN rom on my legion tab gen3 TB321FU .i unlocked my bootloader using lenovo unlocker , and now after i finally restore my CN rom i want to relock bootlooder but i didn't find working methodi'm using the latest CN rom TB321FU_ZUX_1.5.10.184 . and the SN for the tab is HA26TBFZi wonder if anyone has the same prob and figured out how to do that correctly