Itwill help you determine if any third-party apps are causing issues with the touch screen. Find your tablet's Volume Up and Power buttons and keep pressing them together for about 20 Seconds. It will show up a menu. Navigate using Volume up and Volume down keys and choose Safe mode.
Ithen slid that end of the ribbon cable back in to its slot, re-assembled the unit, and the touch screen started working again. Also, the lines on the cables need to line up with the lines on the main board, otherwise the cable is not inserted far enough for a good connection. going to the all black screen, then the Tab S then SAMSUNG, etc Method1: Check for software updates. It is often possible that the device might not be up to date with the latest update pushed out for the device, causing the device's touchscreen to malfunction or not work. To check the device for the latest update, we must follow these steps: Go to 'Settings' on your smartphone.Whetheryou have cracked the glass, touch screen not functioning or your Display is not working correctly and you are looking to change the broken Samsung Galaxy J2 Pro Display, we are offering a brand new LCD screen for a Samsung Galaxy J2 Pro which can be used to change a broken or damaged screen or touch glass.Samsung Galaxy J2 Pro screen is a whole combo of LCD and touch screen both.