Pro Tip: Read the chip twice and compare hashes to ensure a "clean" dump.
Cons / Risks
While official support says "replace the board," the hardware manual details a procedure to reset the CMOS. On older laptops, this cleared passwords. On the T470, it work if the password was set in a specific way, but often it only resets the system clock and settings, leaving the password lock intact. lenovo t470 bios password reset verified
