Ws2812b first led burned

Hi,

Last week i tried wled on my esp8266 f12 with 1m 100led 2812b eco strip from btf lighting. I have a 5v 40a power supply.

First time it worked very well and i was very amazed about all the cool effects. After a short time it was smelling like electronical trash. Then only the last led lit. I saw the first led was burned but i dont know why? Do you have any ideas?

Please don’t make more than 1 post for the same thing. It just confuses things.

Cut off the first led and see if they work. If you have anything metal under the strip maybe add a bit of tape or heat shrink by where the wires are soldered on to eliminate a possible short.