Using this code, i tried to *change* the external led pin. I've tried with 
a couple of ones but doesn't work. The only ones who actully seems to work 
are like "*the middle ones*" on P8. Tried to use the tops and bottom ones 
and nothing. *¿Does my BBB is damage?*

var b = require('bonescript');
var ledPin = "P8_25";
var ledPin2 = "USR3";

b.pinMode(ledPin, b.OUTPUT);
b.pinMode(ledPin2, b.OUTPUT);

var state = b.LOW;
b.digitalWrite(ledPin, state);
b.digitalWrite(ledPin2, state);

setInterval(toggle, 1000);

function toggle() {
  if(state == b.LOW) state = b.HIGH;
  else state = b.LOW;
  b.digitalWrite(ledPin, state);
  b.digitalWrite(ledPin2, state);
}

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