What should I do if I can't send a text message with a brand-name mobile phone?

Hello, your situation should be caused by the lack of running memory on your mobile phone. When mobile phones are used, there are more and more caches. The mobile phone has no extra running memory, which causes the mobile phone to crash and may restart, and will automatically shut down when it is not used in the future. My previous Nokia 3 1 10C had a similar situation. It is recommended to restore the factory settings (soft mesh).