Thread: Help me with Nuvi 255 - lost all data

Originally Posted by lolypop000

Look in inventory page what bootBLK do you have is 851 0r 1074
Hold battery icon for 10 sec (if this dont work then hold clock), then go to page 2 and click on start test and then button More and you will be in inventory page.
Here you will see bootBLK and let me know what number is writen.

851 is normal

1074 is MTK

My 255 go well but it's good to know where to look in case .

But I have some problems.
1 - I can not change the language and the voice is "none found."
2 - I can only access maps from sd card and can only select one (gmapsupp.img) which is always marked and I can not clear, I can just clear the other (gmapsup1.img).
3 - How do I install the map in the internal memory. Do not just copy the file to the root ( on Garmin folder )GMAPPROM.IMG?
If possible to continue help me . I appreciated .
Thank you.