Free Ford Radio Code Forum

i have done pressing 6 & 1, and it displayed MGP DJ5, followed by 4-02, so not sure whether this is now correct code

Hi all just bought 53plate focus tdci lx, had some work done and battery was disconnected, when I switch on radio it flashes R431L5A, I don't know if this is the serial number, but if so has anyone got the code or advice please?