*Urgent* Need help installing maps on nuvi 255

Hello everyone,

I have a formatted Nuvi with none of the original files (255w), I have tried much like everything and no matter if I put any locked or unlocked map on it says no map found error, I checked and I made sure there are no folders hidden on the device, ive tried a sd card with the unlocked image in a garmin folder, I have seemingly tried everything. I really need help and am very desperate to solve this issue.

Update* There is no renaming issue, I have already checked that.
Update 2: I see that some crucial files are not found, can anyone please direct me to download of all the factory installed files? or a dump of their nuvi 2xx (without the map of course)

Thanks,

Fixed the problem, I used a back up I found of the internet, if you have the same problem search: Garmin nuvi 255w formatted, and one of the pages will have a link with the download