Android service boot start running 2.3 but not running 4.0

Android service boot start running 2.3 but not running 4.0

please help me!
Alow to you help me..app android start boot complete running 2.3. but not
running 4.x
code: BroadcastReceiver
@Override
public void onReceive(final Context context, Intent intent) {
Log.v(TAG, "try to start service out");
try{
if
("android.intent.action.BOOT_COMPLETED".equals(intent.getAction()))
{
Log.v(TAG, "try to start service");
ComponentName comp = new
ComponentName(context.getPackageName(),
LocationService.class.getName());
// Wait 10 s to ensure all the service run ok
try {
Log.v(TAG, "try to start service - sleeping");
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
Log.v(TAG, "exception");
e.printStackTrace();
} catch (Exception ex) {
Log.v(TAG, "exception" + ex.toString());
}
ComponentName service = context.startService(new Intent()
.setComponent(comp));
Log.v(TAG, "started the service");
if (null == service) {
// something really wrong here
Log.e(TAG, "Could not start service " + comp.toString());
}
} else {
Log.e(TAG, "Received unexpected intent " + intent.toString());
}
}catch (Exception e) {
// TODO: handle exception
Log.v("Start","Error");
}
}
in android AndroidManifest setting focus to sevices