Cell phones can't make phone calls and send text messages. When they enter a dial or text message, they will jump out and not answer the phone! What should I do?

There are many reasons for your situation.

There are too many caches in the mobile phone, which leads to the failure of the mobile phone system.

If the software problem is eliminated and it is still the same after restarting, then it may be a hardware problem.

Hardware problems, if there is a problem with the department contact, it is recommended to go to the flagship store or the shop attached to the building for repair.

Your system may have an abnormal problem. Restart the phone.