What you want to ask is the reason for the maintenance of Apple's WeChat display system? The account number is abnormal or the WeChat version is too low.

1. Abnormal account: If the account has abnormal behavior, such as frequently changing devices and adding a large number of friends, WeChat will restrict the account and notify the user to carry out system maintenance.

2. The software version is too low: If the WeChat version is too low, system maintenance prompts may appear, and WeChat needs to be upgraded to the latest version.

If WeChat keeps showing that the system is being maintained, you can try to restart your phone or wait a while before trying to log in. If the problem still exists, you can contact WeChat customer service for help.