WknThDg,

I've got a couple 775t and want to updatew the firmware.

I posted a question in another post about the latest embedded locking scheme in the Garmin firmware.

For clarification.... did you notice any problem with your maps after you updated your firmware ? Were they still all unlocked ?

Does using the "Garmin Alternative Unlocker" ( and in some cases the Mapsource reverser) castrate the firmware check for the certificate numbers on the unit ?

I have been avioding doing any firmware updates on any of my units lately since I ran into a problem with the new scheme on my 76CSx.