Legion Y540 laptop system SKU shows up as Ideapad

Hi, so I got my Y540 motherboard replaced at the warranty service and now the System SKU shows up as LENOVO_MT_81SX_BU_idea_FM_IDEAPAD. This means that the Vantage app doesn't upgrade to the gaming version. I took it back to the warranty service and they said that this is the first time they see such a thing and the only thing they can do is replace the motherboard again and that there's no other way, but then there's a chance that I get another Ideapad BIOS flashed on the motherboard and nothing would change. Has anybody had the same problem? What should I do? Can somebody with a stock motherboard send a screenshot from System Information app and show how their System SKU code looks like?