Thread: backup nuvi 660T FM 's content

hi thanks for answering me , my device has a 2gb internal memory ( i have bought it at the begining of the commercial life of this product, i have formated it with windows
vista tool by mistake , i was thinking to format an sd card witch was in my laptop but unfortunately i formated the internal memory of the nuvi because i try unsucessfully since one week to put in it an actual map to give him a second life at at the end i think i was not knowing what i was doing at all and i made this mistake; the device boots and shows menus correctly but is fully empty...i am going to try what you told me in your last post , thank you for helping me

edit : just now i have made allyou told me , foramtted with rmprepusb in fat 32 with option showed in the picture of the post you linked me ( my unit has near 1,9 gb internal memory , so used fat 32) afer created a folder named Garmin and putted inside it the basemap "nuvi gmapbmap.zip" , booted the device after secure disconected from computer , then runed webupdater to load files needed , but the trouble is still the same as last days , when device is running there is map available to navigate , when i choose in the device "display map" thereis no road , anything just the vehicle icon , when i go in the map menu of the device : there is not any map listed... don't know what to do else ...