Page Comparison

State 

Pattern 

Color 

SD Activity 

Short Blink 

(100mS) 

Green 

No SD Card detected 

Fast blink 

(100mS On, 100mS Off) 

Red 

General Hardware Issue
(Including a problem with the SD card that probably requires replacement)

Steady without blinking

Red 

Missing / Corrupted Configuration file 

Slow blink 

(100mS On, 750mS Off) 

Red