Question

I want to send fake sms on android, but I couldn’t do it.

My code below:

      Intent a = new Intent("android.provider.Telephony.SMS_RECEIVED");

      byte[] by =(byte[])(SmsMessage.getSubmitPdu("12345", "1234", "hello", false).encodedMessage);
      Object[] vrs = {by};
      a.putExtra("pdus",vrs);
      sendBroadcast(a);

Do you have any idea?

Answer 1

Some broadcasts are protected and can only be sent by the System. Maybe this is one of those.

UPDATE
This snippet from the Android SMS application might help you.

<!-- Require sender permissions to prevent SMS spoofing -->
<receiver android:name=".transaction.PrivilegedSmsReceiver"
    android:permission="android.permission.BROADCAST_SMS">
    <intent-filter>
        <action android:name="android.provider.Telephony.SMS_RECEIVED" />
    </intent-filter>
</receiver>

In short, try asking for the BROADCAST_SMS permission

for further reference http://mobiforge.com/developing/story/sms-messaging-android