Why can't WeChat health code be used?

1, WeChat health code cannot be used. First of all, it may be caused by the mobile phone network. This may happen if the mobile phone has a poor network speed or no network connection. Users are advised to check the network connection status of the mobile phone, or disconnect the mobile phone network and then try to reconnect, which will generally solve the problem.

2. Secondly, if the problem cannot be solved, it may be caused by the failure of the QR code. Users are advised to click to refresh the QR code, or directly exit WeChat and reopen it.

3. Wechat usage skills: Take Wechat version 7.0. 15 as an example. When using the mobile phone WeChat, if the user wants to add friends to the blacklist, just turn on the mobile phone, find the WeChat app from the mobile phone desktop and open it.

4. After entering the app, click the address book at the bottom of the page to find the friend to be blacked out on the address book page, then click to enter the other party's information card page, open it, click the icon in the upper right corner, and then choose to join the blacklist and confirm.

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