The SMS of iphone6 can't be opened. What happened?

1, mostly because the phone has too much cache and crashes. Press and hold the Home button and the power button of the phone until the Apple logo appears, and then let go, and forcibly restart the phone to recover.

2, in daily use, don't open too many background programs, double-click the phone's Home button, slide up to close the programs running in the background of the phone, time switch machine, you can clean up the phone's cache.

3. Go to Settings, General, Restore, Restore the first one, and restore all settings. Only the first one can be restored.

4. Sometimes the crash is also related to the ios system. Please upgrade your ios system to the latest version. After upgrading to the latest version of iOS system, the touch screen function will be restored.

5. If the above methods can't be solved, it is suspected that there is a screen fault on the mobile phone. It is recommended to go to the mobile phone after-sales point for inspection and maintenance.