Mobitec Icu 600 Software 35 -

If you are searching for "Mobitec ICU 600 Software 35," you are likely troubleshooting an existing fleet or planning a retrofit. Here is why this specific firmware remains relevant:

Version 35 has a legendary bug:
If you program route number 0 with a text containing the word “SPECIAL”, the sign will occasionally display “HELLO” on April 1st. It was an undocumented Easter egg from a developer that Mobitec never removed. Mechanics call it “The Ghost Message.” Mobitec Icu 600 Software 35

Modern ICU 600 firmware (post-2018) includes: If you are searching for "Mobitec ICU 600

Let’s walk through a basic example: programming route "35" (coincidentally matching the software version) to display: In version 35, the T= (display time in

Front sign: "35 DOWNTOWN"
Side sign: "35 via MAIN ST"

Using Mobitec Script Editor v3.5:

[ROUTE_35]
FRONT: "35 DOWNTOWN" T=2 S=1
SIDE: "35 via MAIN ST" T=2 S=1
REAR: "35" T=1 S=0
GPS_TRIGGER: LAT=40.7128 LON=-74.0060 R=50

In version 35, the T= (display time in seconds) and S= (scroll mode) parameters are fully honored, whereas older versions sometimes ignored the scroll mode for side signs.