A key chip copier is a device that reads the chip information of the original key in order to copy the same chip information and produce a similar key that can open the door lock. For the BMW key, if its chip information can be read, then the key chip copier can copy it, thus producing a key identical to the original key. Please note, however, that copying keys requires legal authorization, as copies of keys that violate legal and ethical principles may raise some risks and security issues.
Impossible, BMW car keys have a unique identification chip and engine match, the key is lost need to go to the manufacturer to re-match, take half a month, a few minutes can not be copied.