i was trying to find information about soldering SDcard on My TomTom XXL 540 second hand (pay 20euro)
and i found pinout soldering point on Poland forum, i try and i succes, now i have 8gb Sdcard working instead of 2gb internal
so here is the pinout if anyone looking for it
enjoy !
ps : you dont need to remove 2gb memory chip like on the picture ..... just solder sdcard and it will work