I've tried many known-good SD cards, used both Etcher & Win32DiskImager and every other good idea I've had but this brand new RPie 3 A+ won't even start to boot. Runs Retropie just fine. Ideas?
It's hard when it looks like the Dell monitor is getting a [ black ] signal but doesn't display anything. Also the red LED doesn't flash at all.
Thanks for any help.