AF-3500 with 3.10.0 - 3.10.2 firmware, Display is Dim; Firmware issue

​Potential Symptoms

• Display is dim during the daytime.
• Both sides of a primary mirror display setup are dim even though the light sensor is reading above 400.
• When Re-booting the display, the boot sequence will be bright but will dim down to minimum brightness.
• Display will remain dim on Manual 100%. (May brighten for 10 sec when switched to Manual 100% but changes back to a dim level of 6.)
• Brightness in Venus 1500 v4 reads "Automatic [1] - 6" or "Manual [#] - 6" or something similar indicating a minimum dimming value.

Environment

• Product Family: Message Displays
• Product: AF-3500, AF-3550
• Component: M3 Controller (Firmware DD1425608.EXE version 3.8.0, 3.10.0, 3.10.1, & 3.10.2 firmware)
• Control System: Venus 1500 v4, M2Config Utility

Cause

• The firmware versions are initiating thermal protection mode when it should not be initiated. 

Resolution

• Use M2Config to update firmware on the controller to version 3.11.1 or newer.
  
• When updating it is recommended to step the firmware up from 3.10.2 to 3.11.4 and then to the most recent. DD4269898
  
• How do I update M3 Firmware using the M2Config software utility? DD3488606.
  
• Note: This update will take 3-5 minutes to complete once uploaded.  It is critical not to power cycle during this time.