1. First of all, the QR code of vip Senior Year Card can't be scanned, because the light is very strong, and even there is a reflection phenomenon, which will make the QR code unrecognizable.

2. Secondly, the QR code is unclear or dirty. There are only two colors in the QR code, and there are other noises or dirt, which will reduce the recognition rate of the QR code.

3. Then, because of the air environment, the camera is easy to be contaminated with thick dust, which will also cause the camera to be unable to take a clear image.

4. Most QR code scanning software needs to connect to the network. If the signal is poor, the scanning will fail.

5. If you can't scan the QR code, it's the scanning software itself. Try to replace other QR code scanning software.