Ok, now i started again from first point :
1. Clear all user data and Nonvol Statistics
2. Flash CURE this time 430
3. Format partition like in tutorial back in to FAT32
4. Flash nuvi37xx_GCDFile__430
5. Start device, wait about 3 minutes, swith off
6. Connect to WebUpdater and install all updates included new version 500.
7. Start device, wait about 5 minutes for accepted updates...
8. Copy gmapbmap.img to System folder
9. Start GarminMapUpdater and install Map with my MapId, it will be accepted and installed.

Now i have map in details, but still no right language\text and keyboard in folder....
So... we have now only one trouble with bad lang.\text file and keyboard...