Does the subject want to ask "What is the reason why hengfeng bank app can't be upgraded"? Network problem, incompatible versions.

1. Network problem: Please check whether the network connection is normal, and make sure that the device is connected to the Internet and can be reconnected to the network.

2. Incompatible versions: Please check whether the equipment meets the minimum system requirements of hengfeng bank app. If you do not meet the minimum system requirements, you cannot upgrade. You can upgrade the version.