How to fix a touch screen iPhone that does not respond or work can be done with Update and Remove Applications. Some of the iPhone’s non-responding touchscreen problems I’ve encountered are caused by apps. So, not a broken touchscreen. Meanwhile, if it there’s a real problem with its LCD, just bring it to the trusted iphone 7 plus lcd repair service near you, and you’ll do it just fine.
When you try to run an app and the app stops automatically (freeze) and the main page appears. If you notice this, we recommend that you update the app first before running it again.
But if you already update the app on the App Store but still meet the application iOS freeze so it does not respond to touch then you must remove the iPhone application.
Full iPhone Capacity
One of the causes of iPhone touch screen is not working or responding because iOS storage capacity is exhausted or almost full.
To check iPhone storage capacity, run the Settings app and then tap General – Storage & Usage – Manage Storage. Make sure there is a space around hundreds of MB or if necessary up to one GB.
You must remove some iOS apps that are no longer used to increase storage capacity. Storage is almost full due to some iPhone apps like Facebook, Instagram, Twitter that store cache files as long as we install and use.
After deleting the iOS app, double check the available storage space then restart your iPhone.