HELP!!! 276 LEDS not responding

AAAAAND now it stopped altogether. No startup config, NOTHING. I don't know if this PSU could be an issue??

Quote from matthew henry

I think it very well couldbe

how do you have your LED's wired in regards to power? DO they have power going in from both sides?

also

276 WS2812B LEDS > 5V 10A PSU + DATA 10

60mA * 276= 16,560mA @ Max brightness

16.56 amps would be the MINIMUM for max brightness.

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Sorry it took me so long to respond. Was busy during holidays. To answer your question, no they were just powered from the bottom right corner. And I actually just realized that I wasn't giving it enough power.

I've since purchased a 5V 20A PSU and wired it up, but I'm getting no response now. Could my LEDs be dead; or the nano? The Ard. nano still lighting up, but it doesn't seem to be sending any signals to the LEDs.

I tried reuploading the sketch to see if I could at least get the start up animation, but nothing. Is there a way to check the components?

Any help would be appreciated.