Can't the mobile phone scan the QR code? Teach you three ways to solve problems.

QR code scanning is a common function in our daily life, but sometimes it can't be scanned. This article will introduce three possible reasons and solutions to help you solve the problem quickly.

Camera hardware failure

If there is a problem with the camera of the mobile phone, the App will not be able to scan the code because of the startup failure, or the dust will enter because the rear lens is broken, which will affect the clarity. At this time, you can check the protective lens of the camera first, and then verify the function through the "Camera" App.

The mobile phone is not connected to the Internet.

If the mobile phone is not connected to the internet, the App cannot use the network, and some functions are limited. At this point, you need to check the network connection, open it and try again.

The application is not granted permission.

If the App does not get the "photo permission", click the scan code and there is no response. At this point, you need to enter Settings, Applications, Rights Management, Rights and Camera to open the rights of related applications. If it doesn't pop up, you can manually enter the rights management page.