For the scan to work, you must make sure:
1) That you've authorized access to the camera. If not, you'll need to change this in your phone's settings:
- On iOS, go to "Settings", click on "Yuka" and check "Camera".
![](https://files.helpdocs.io/n0njida9x8/articles/91zq5cp09i/1583305370322/came-ra-ios-e.png)
- On Android, go to "Settings", click on "Apps", then on "Yuka" and finally on "Permissions". Then check "Camera".
![](https://files.helpdocs.io/n0njida9x8/articles/91zq5cp09i/1583700747446/camera-android-e.png)
2) That you've authorized the application to use cellular data. If not, you'll need to change this in your phone's settings:
- On iOS, go to "Settings", click on "Yuka" and check "Cellular Data".
![](https://files.helpdocs.io/n0njida9x8/articles/91zq5cp09i/1583305394182/donne-es-cellulaires-ios-e.png)
- On Android, go to "Settings", click on "Connections", then on "Data Usage". Then check "Mobile Data".
![](https://files.helpdocs.io/n0njida9x8/articles/91zq5cp09i/1583744224102/android-donnees-mobiles-e.png)
3) That you have an internet connection, which is not necessarily the case in all supermarkets.