I just test my pins 10 and 11 on a solenoid using this sketch
void setup() {
pinMode(8, OUTPUT);
pinMode(9, OUTPUT);
digitalWrite(8, LOW);
digitalWrite(9, LOW);
}
void loop() {
digitalWrite(9, HIGH);
delay(1);
digitalWrite(9, LOW);
delay(1);
}
And the pin won't even work for that. This code works for any other pin however. Maybe it is broken ?