Description
The Unison Echo®-Echoflex interface (EEI) uses a MicroSD card for firmware upgrades. At the beginning of an upgrade, the EEI will blink its status or error lights in different patterns, depending on what is happening.
|
State
|
Status LEDs
|
Error LED
|
|
Bootloader resident
|
Blink, blink, none, none
|
Off
|
|
Writing firmware to flash
|
Blink, blink, blink, none
|
Off
|
|
Bootloader error
|
Off
|
Blink, blink, none, none
|
|
Flash checksum error
|
Off
|
Blink, blink, blink, none
|
|
SD Card Error
|
Off
|
Blink, none, none, none
|
While the upgrade is happening, the Status LEDs will blink (as per "Writing firmware to flash" above) and the LED bar graph will light up sequentially. This process typically takes less than a minute.
When the upgrade is successful, the EEI will return to normal mode. Be sure to remove the MicroSD card at that point.
