The unit loaded right up and had maps but for about 20 minutes i was a bit worried as it could not find the satellite and showed my location as the place where it had last functioned. When my 255W kept saying "missing files" Apparently there are 2 files depending on your serial number. Nuvi 255W Hardware ID on mine was: 1091 Successfully used firmware: nuvi2x5W_GCDFile-MTK__760after processing with RGN_Tool.Only other change was I had to run as Administrator on Windows7/64 bit. Just wanted to add a few screenshots to clarify the steps I did to reset my 255 but can't find any way to add pics to posts.My problem: The unit would turn on, Garmin logo would show up, and the "Loading maps..." text would show up and right at that moment the unit would restart, looping in this pattern.Connecting to a computer to use Web Updater was unsuccessful. It would make sense to have all of these files in the same folder.The instructions above are pretty complicated, and besides the first link doesn't work anymore and I can't find that file anywhere else. This is advice that we give to everyone and it has saved many who did so.I do still have a couple months on my Best Buy service plan and I will take it in if I have to, though I will certainly lose all my data. Its completely okay if the only answer is no, but does anyone know if there's any hope of getting my saved info back from this unit? Saving your favourites is as easy as copying the 'current.gpi' file from the unit. Saving your favourites is as easy as copying the 'current.gpi' file from the unit. As long as you know the current version of the firmware you should be able to download it by using the link provided in the first post, but changing the version number. Instructions found at Thanks silent636, I was able to recover my Nuvi 255w.
(My unit has no button on the bottom but I know how to access the YES/NO screen.) Since I had just gotten a new one you'd think I'd be okay with that except I had wanted to transfer over some saved coordinates that have no address (such as the ones I use when I go camping each year).
There's a check box for "com port." Make sure the USB box is checked and hit the "save" button.
Then under the GPS tab -- "Get GPS ID" -- I got an error message.
I don't know if the battery level had anything to do with it.
Third, For G7TOWIN Under the File tab -- "configuration", you enter a configuration page.