iOS MKMapView not showing userLocation, even though the location is updated

- (void)locationUpdate:(CLLocation *)location {
    [mapView setCenterCoordinate:location.coordinate];
    if ([mapView showsUserLocation] == NO) {
        [mapView setShowsUserLocation:YES];
    }
}

myMapView.showsUserLocation = YES

- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation
{
	MKAnnotationView* annotationView;
	
	if (annotation == mapView.userLocation)
	{
		// We can return nil to let the MapView handle the default annotation view (blue dot):
		// return nil;

		// Or instead, we can create our own blue dot and even configure it:

		annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:@"blueDot"];
		if (annotationView != nil)
		{
			annotationView.annotation = annotation;
		}
		else
		{
			annotationView = [[[NSClassFromString(@"MKUserLocationView") alloc] initWithAnnotation:annotation reuseIdentifier:@"blueDot"] autorelease];
			
			// Optionally configure the MKUserLocationView object here
			// Google MKUserLocationView for the options
			
		}
	}
	else
	{
		// The requested annotation view is for another annotation than the userLocation.
		// Let's return a normal pin:

		annotationView = [mapView dequeueReusableAnnotationViewWithIdentifier:@"regularPin"];
		
		if (annotationView != nil)
		{
			annotationView.annotation = annotation;
		}
		else
		{
			annotationView = [[[MKPinAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:@"regularPin"] autorelease];
		}
	}
	return annotationView;
}