work for the Supervisor Password on a T470. It only resets the "Power-on Password" and time/date. Official Lenovo Policy
Recommendation: For a single laptop, the $10 CH341A kit is the verified best value. For a repair shop, buy the Vertyanov. lenovo t470 bios password reset verified
You must physically clip onto the BIOS/Security chip on the motherboard, dump the data to another computer, use a patcher tool (like the "Autopatcher" found on specialized forums like BadCaps), and flash the modified data back. work for the Supervisor Password on a T470