Bluetooth module hc-06 never responds to AT commands issued in arduino

the bluetooth module hc-06 is not responding to the AT commands which are issued from the sketch as shown below...

void setup() {
Serial.begin(9600);
delay(1000);
Serial.print("AT+NAMEsomething");
delay(1000);
Serial.print("AT+PIN4321");
delay(1000);
Serial.print("AT+BAUD7");
}

void loop() {
}

it does not make any changes to the bluetooth module. I tried pulling pin no. 26(KEY) to high (3.3v) on the HC-06 for command mode, but no response.

please help me ! :drooling_face:

Try

 Serial.begin(38400);