My ASEAN Free GPS Map Project

I am thinking of purchasing a 255w not a sg/my version, but flash the firmware to the sg/my. however i am confused over few things. 1. After i completed the flashing, which map should i install to have the jv functions ?, can i download directly from garmin website even mine is not a sg/my version ...

Hi all I have a 205W, US model bought from Amazon.com I checked my mainboard version inside the diagnosis mode , it gives me this : SW ver 6.40 nuvi 2W series S4_R3 V4 2GB Is it confirmed my 205W comes with mainboard S4 ? If yes, is it no where i can use the guide here as i am going to get white sc...