Unable to boot my Dragonboard 410c

I obtained my DragonBoard 410c through eBay around a year ago to follow with a Coursera course I’m taking. For technical reasons, I postponed the project. I tried booting it yesterday for the first time with all dip switches turned off (0-0-0-0), following the instructors’ advice. First, the “DragonBoard by Qualcomm” logo showed up. After that, I got a black screen with a top red stripe and an empty text field inside.

I was expecting it would run Android. but that was not the case.

What might be the problem here?

Appreciate any input on this.

Thank you,