A:AnswerFrom what I know, there isn't a Windows Hello Facial thing on this model, as mine doesn't have it. It only has a fingerprint sensor for biometric unlockings. Go into settings and disable and reenable fingerprint. Or just restart your computer first. I've had the fingerprint sensor just not want to work sometimes and it's just temporary for me.
A:AnswerL93119-001 is the part number for the keyboard for this HP ENVY X360 LAPTOP - 15M-EE0013DX. You can see if the Geek Squad at Best Buy can order the keyboard replacement for you.