AS5712-54X, AS5812-54X, AS6712-32X, AS6812-32X.
It may be the console port failure.
- Console Baud rate: 115200
- Change another Edgecore console cable for testing
- Change another PC/Laptop and adapter (USB to RS232 cable) for testing
- Power cycle the switch several times
All above, if the console screen still does not display anything, please return the unit to Edgecore for RMA repair service.