iphone 4/4s / 5/5s/5c / 6/6s/6s plus screen does not work
1, because sometimes touch screen failure caused by excessive dust on the screen.Find a clean glasses wipe cloth to remove apple mobile phone screen.
2, sometimes in the daub after hand cream, can also cause immediate use of touch screen screen failure or wet hands, so at the time of using mobile phones to keep dry hands.
3, if buy is very waste plastic protective film or film, please jie swaps to turn it into a better quality of mobile phone film.
4, if all is not caused by the above reasons, please try closing device, and then back on.
5, if you can’t turn off the cell phone at the same time hold down the Home button and power button restart your phone and touch screen operation can resume.
6, sometimes the touch screen is invalid is also associated with ios, please upgrade to the latest version of ios system.After the upgrade to the latest version of iOS system touch screen function will recover.
7, if the above methods can not solve the screen failure, doubt lead to poor contact screen ribbon cable failure, suggest to check mobile phone after-sales maintenance.