Bought a 2nd hands car and this is my config:

Carminat TomTom (not live)
AK*** A***2
App *.844.634510.500, OS 628172
NFA2.0-KZ5, 28/1/2011
GPS v1.20 Boot 55.7716
Europe v880.3812
Language: Français


Is there a safe way to flash older NavCore without bricking device so I can use crked maps? How? Any tutorials somewhere?

Thanks