Hacking How can I learn what firmware a PS4 uses based on it's serial number?

[DaemonXHUN]

Most of the webshops I've checked list PS4s with their serial number. To give you some examples:
PS719887256
PS4PRO1TBK/2803472
PS719936961

How can I make sure that I order the right one that is on 5.07 or lower? I'm talking about PS4 Pro primarily by the way.

 

[xxstyler20xx]

The PS4 Pro with 1TB (Amazon) comes with 4.73