QQ enters the safe mode, and the mobile phone sends a short message to remind you that the short message has not been received.

Hello, maybe there is something incompatible with the mobile phone.

Generally, this situation can be restarted. If not, brush the machine.

I suggest you try the pc version of Tencent's mobile phone housekeeper, which is the brushing function of App Bao.

Turn on the computer, connect the computer with a data cable, and find a USB connection method to connect.

The pc version of Tencent Mobile Manager found on the computer is an application treasure. Connect the mobile phone, wait patiently to identify the mobile phone, identify the mobile phone, find the toolbox, open the toolbox, and follow the prompts.

I hope I can help you and adopt it. Thank you.