Why can't my QQ synchronization assistant restore SMS?

Hello, opening it for the first time will allow you to synchronize for the first time. When synchronizing for the first time, you can choose three modes, the cloud will prevail, the mobile phone will prevail, and merge. After that, every synchronization is intelligent synchronization, and there will be no more this option. Subject to your latest version. That is, as soon as you modify the cloud and click Sync, your mobile phone will be synchronized. Just after modifying the mobile phone, click Sync, and it will be synchronized to the cloud.

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