I have updated the firmware on P4P v2 to enable the RemoteID function.  I thought I might share several key learinings:

1.  Location Services has to be enabled on the IOS Device running the DJI GO 4 App. in order to operate the aircraft normally.
2.  When going to FAA Drone Zone website to update the the registration for  the aircraft, you will need to enter the Remote ID serial number.
3.  I looked in the About section of the DJI GO 4 App to find the  Remote ID Serial # for my P4P, but it was not listed.

4.  I learned that I had to append 1581F to the beginning of the my Flight Controller Serial number; this was my new Remote ID serial number.

Example: 1581F + 11VKF2P00210RJ = 1581F11VKF2P00210RJ

When I did this, I was able to update the aircraft registration for my P4P v2 Remote ID capability on the  Drone Zone website.

Fly Safe.

Hi, Gizmo6. We appreciate you for sharing the steps that you take to register your DJI Phantom 4 Pro V2.0 to the FAA for the Remote ID. If you have other inquiries or concerns, feel free to contact us. Thank you for your valued support!

As another post on the same subject pointed out, you have to append a zero to the end of the FC Serial # for your P4P v2.  


Example: 1581F + 11VKF2P00210RJ + 0 = RemoteID: 1581F11VKF2P00210RJ0

That makes for a 20 digit number that can be used for updating your P4P registration on the Drone Zone.

I missed that.

Happy Holidays.