I bought a Phantom 4 Pro from a grey importer, am I still able to buy DJI Care refresh for it?

probably not .
if the place you bought it from is not am authorized dealer
 
Try. If you can't the serial number will not work when you enter it. DJI has no way of knowing where you bought it from so it will probably work.
 

Members online

Forum statistics

Threads
143,585
Messages
1,471,733
Members
105,601
Latest member
Wenca66