CM3588 Will Not Boot

[oswallt]

I noticed my CM3588 was not connected to the network and when I checked on it the red power light and the red sys light were on, but there were no other lights. When I restarted it, the same 2 lights came on at the same time, but nothing else happened. There was no signal to the monitor.

Is there a list of what the LED lights mean? I'm not even sure where to start troubleshooting.

I have the CM3588 (not plus) with the NAS kit, running Open Media Vault (OMV) on the eMMC.

Any help would be much appreciated.

[chrisberg]

You'll need to monitor where the boot process stops.

Connect a USB RS232 adapter to the DEBUG-UART connector.
Open a serial terminal app (e.g., PuTTY) and set the baud rate to 1500000 bps