Ardoino nano v3.0 connect to Android

Hy

I want to send datas from my nano to my android device(Alcatel Pop C7) using USB. I downloaded AndroidHyperTerminal from Google Play to test the serial communication but my Phone didn't see my nano.I tryed other apks witch supported the FT232RL chip but none of them detects the adapter :~
I use this in the arduino side to test the serial communication:
int led = 13;

void setup()
{
Serial.begin(9600);
pinMode(led,OUTPUT);
}
void loop()
{
digitalWrite(led,HIGH);
delay(1000);
digitalWrite(led,LOW);
delay(1000);
Serial.println(1);
}
In win7 x64 works fine.The Phone and the OTG function works too.
Pls help me, what am i doing wrong?

Yours Faithfully
An embittered beginner