Corruption in NV RAM, This system status message is seen when the CPU NVRAM has been cleared This system status message is seen after a
a) matrix hardware "black" reset (press and hold full reset button, press and release reset button using paper clip).
b) matrix download "black" reset (apply label change > options > select Clear Frame data check box)
c) if the CPU battery backup voltage is low and below 3V A Black reset or low battery backup will result in loss of any online changes and any local key panel assignments The customers configuration (map data) is stored in flash and not in NVRAM
CPU card will retain data so long as the battery voltage remains above 1.5V.2.5V
Solution update low battery voltage changed to 2.5V on Feb 2021