Jetson Nano 2gb Not Booting / Powering On

I have a Nano 2gb that was working fine. I flashed the 4.6 jetpack onto SD card and booted. It finished the setup and went to desktop. I then shut it down via desktop and now when I attempt to power it back on nothing happens. The green led comes on and then goes right out again. I’ve tried re-flashing the 4.6 image , and the 4.5 image with no luck. I’ve also tried the Project ARES image for retro gaming and no luck with that either, using a different microSD card from the jetpack images.

Please refer to point 0.