LIME 4GB not booting up

[ArticCynda]

Hey everyone,

I'm new to the OLinuXino ecosystem and have just purchased an A20-OLinuXino-LIME-4GB to start with. Unfortunately, I can't get it to work.
I have powered the board with a 5V adapter and tried the following:
- hooked up USB cable and tried SSH connection with Putty, no response
- hooked up Ethernet cable and tried SSH connection with Putty, timeout
- hooked up a HDMI display, nothing appears on display
- pushed the different buttons numerous times, in different combinations, held them pushed for multiple seconds etc., no reaction
- written official Debian image to 4 GB micro SD card and tried to boot from it, nothing happens

According to the manual, if I understand it correctly, Android should be pre-installed in the on board flash memory, but I also don't manage to boot that up.

Visually, only the red power LED next to the barrel jack is lit up, nothing else happens.

Can anyone advise what I'm doing wrong? The board is new, ordered directly from Olimex. Any help would be greatly appreciated.

My apologies if I'm overlooking something obvious.