Lenovo mobile phone suddenly cannot send text messages and keeps showing that it is sending. It cannot be sent for a long time. What should I do?

Personally summarize the following issues:

1. The mobile phone is not in arrears.

2. Call customer service to confirm whether the information number of the mobile phone information service center is correct. Step Information>Settings>Information Service Center>Confirm Number.

3. Have you downloaded software similar to Mobile Phone Purifier? If so, open the software, find permission settings > Information > select Allow All (or select Access All. This is the case on my phone, and then open Information When the access dialog box pops up, then select Always Allow and you’re done. )

4. Or if it’s a problem with your phone, you can try restoring factory settings. (After all, I am not an expert in mobile phones. There may be many questions that I have not mentioned. I hope the above methods can help you.)