Description

 These files were copied from a Roadmate 1412 with 2008/2009 (revision 33) map data.

You should be able to copy your old files from your TFAT partition or the Removable Disk partition that you find them on when you plug the device into USB to a backup folder on your PC, then copy these files overwriting the original files.  Once you do this, unplug the device and hold in the power button for 15 seconds to fully power it off, now turn on the device and you should be able to go to User Options / Map Info and see revision 33