@Kunix

I didn't see that i forget to write for pre boot

Thank you for this, when i read your post i go read my post and see my mistake.

@Neil
I take Garmin rar from your post and automaticly forget to write pre boot step, becouse i read this in yours.
I change in hex and create pack for amos1 in case if he don't know how to do it.

If he tell us that in updater.log have succes then we can copy mileage log with SD command and then erase reg41 and maybe then Pc will see his nuvi.