title: adMob not working on real device (iPhone)
body: <p>I tested adMob with iOS simulator. It shows ads at the bottom of the screen.
  But when I change it to real device the ads not showing.</p>
  <p><a href="https://i.stack.imgur.com/82pCX.png" rel="nofollow noreferrer">enter image description here</a></p>
  <h1>AppDelegate.m</h1>
  <pre><code>[GADMobileAds configureWithApplicationID:@&quot;ca-app-pub-7067850045620785~8479598780&quot;];
  </code></pre>
  <h1>ViewController.m</h1>
  <pre><code>self.bannerView = [[GADBannerView alloc] initWithAdSize:kGADAdSizeSmartBannerPortrait];
  
  self.bannerView.adUnitID = @&quot;ca-app-pub-7067850045620785/6404933932&quot;;
  self.bannerView.rootViewController = self;
  [self.bannerView loadRequest:[GADRequest request]];
  self.bannerView.delegate = self;
  </code></pre>