If we assume the 1EX00 aligns with the standard GO 5000 specifications of that era (which utilizes the "4CS" or "1EX" internal revision codes), the device boasts the following features:
If the 1EX00 unit is tied to a vintage that has reached "End of Life" status for updates, the device will still function for navigation, but the maps will become increasingly outdated. New roads, changed one-way systems, and new speed cameras will not be reflected on the screen. tomtom 1ex00