Why does Qingyang No.2 Telecom's 4g mobile phone often fail to respond after opening short messages?

(1) Click one-click acceleration (one-click cleaning) in the drop-down status bar of the mobile phone or close the background program to clear the cache files in the desktop program management, increase the available memory, and avoid the phone crashing due to insufficient memory.

(2) click "Settings->; General/More Settings-> System upgrade-> Check for updates now upgrade to update your system.

(3) try to pass "Settings->; General/More Settings-> Restore factory settings-> Clear all data "Clear abnormal data (that is, restore the factory status), which can solve the crash problem caused by the compatibility of viruses and third-party software. Note: Clearing the data will lose all the data stored by the user on the mobile phone, including phone book, SMS, third-party application software and related account information, and the data stored on the T card will not be lost. Use with caution.