If you are trying to scan a QR code for an event you are attending using the Med App scanner you may see a black/blank screen. Here are some common solutions to this problem, if your settings are preventing the app accessing the camera.

Why does Med App use an inbuilt scanner?

In short, to optimise accuracy and speed of scanning. Before QR codes were common phones didn't contain their own software to detect codes. Still today they can be slow, buggy or simply don't work

Solution 1 Update Med App to the latest version

Most issues occur from older versions of the software, go to the apple store or google play store for the latest version of the app.

Get the latest Apple version

Get the latest Android version

Solution 2 Change phone permissions to allow camera use

If camera access has not been granted access it will stop it from turning on, giving you a blank screen.


  1. Go to Settings > Privacy.

  2. Tap a hardware feature, such as Camera, Bluetooth, Local Network, or Microphone.

  3. The list shows the apps that requested access. You can turn access on or off for any app on the list.


  1. Go the device settings and find Med App or hold the Med App icon and press 'app info'

  2. Select permissions

  3. Make sure camera access is set to allowed

  4. Restart Med App and retry

Solution 3 Use your phones inbuilt QR scanner

If the above did not work, try switching to your phones inbuilt scanner via the native camera application. Most phones now come with an inbuilt phone's scanner.


  1. On your compatible Android phone or tablet, open the built-in camera app.

  2. Point the camera at the QR code.

  3. Tap the banner that appears on your Android phone or tablet.

  4. Follow the instructions on the screen to finish signing in.


  1. Open the Camera app from the Home Screen, Control Center, or Lock Screen.

  2. Select the rear facing camera. Hold your device so that the QR code appears in the viewfinder in the Camera app. Your device recognizes the QR code and shows a notification.

  3. Tap the notification to open the link associated with the QR code.


We only use the camera for the purpose of scanning Med App QR codes to make it easier to log attendance. If you want to find out more about our privacy policy or would like some more info, just get in touch at contact@med.app.

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