After the phone is infected, will you only send text messages to one person, and other contacts in the phone will not receive them?

This is possible, because anything can happen after a mobile phone is poisoned.

After your phone is poisoned, you can use Tencent Mobile Manager to kill viruses;

The steps to use Tencent Mobile Manager to kill viruses are: Go to the official website to download and install the latest version of Tencent Mobile Manager, and update the virus database after installation ->Click "Tencent Mobile Manager" on the mobile phone desktop ->Select "Virus Scan" ->Select "Quick Scan" (or "Full Scan") to completely disinfect the phone.