Battery not charging, no MagSafe light, replaced battery and DC-In

I need help, not sure what’s going on.

My retina MBP 2013 stopped charging. I have 2 different chargers, neither work - I don’t even get a light. I replaced the battery, no change. I replaced the dc-in board, no change. At this point, I’d like any help I can get - anything else I can try? Sadly, the battery (both the original and the replacement) doesn’t have enough charge to boot, so I can’t actually troubleshoot anything in the OS.

I reset the SMC too, btw.