There are other reasons.
1, Tencent will send a notice to inform the system maintenance.
2. If it is not system maintenance, then you need to open QQ, click on your personal information, and there is a "Save personalized signature to space" next to personalized signature.
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Personalized signature
Stay with me. I don't want to make you happy, but because I am.
2, the world of children, only children understand. Our time, only our memories.
3. When you love someone, you only see the advantages of the other person, but you don't care about the shortcomings.
Let's welcome the warm spring with open arms.
5. We didn't have a mobile phone, a computer or wifi before. At that time, we were happier than now.
6, sad memories, but remember so deeply.
Notice: delivered to the notified person in the form of written notice. Let me show it to you for reference!
Fan Wenyi
Hello parents: