ESP8266 Community Forum

QuickFix wrote:Please tell me what happens with the blue LED on the ESP (the one encircled in red, near the antenna), not the blue LED on the NodeMCU-board.

That light doesnt light up even when I press the on board reset button

That's not right; if you have a multimeter, you can see if the ESP gets proper 3.3V power:


It's not really worth the effort of trying to fix it, since a new board only costs a couple of bucks.