Samsung Galaxy J4 J400F Touch Screen Ways Touchscreen Jumper Solution

If ever trying to fix Samsung Galaxy J4 J400F Touch Screen Problem Touch Ways Touch failure issues and you’ll do replacing the touch plate module, trying to calibrate the touch screen setting but unresponsive and restoring, upgrading and flashing the device firmware but nothing happens, the problem still exists and the touch screen left unresponsive.

This sometimes happens if the device suffered due to a wet damaged, heavily dropped and any related damaged accidentally done by the user. In this case, only a hardware repair may only help solved the problem.
This solution below shows the Samsung Galaxy J4 J400F PCB board components that hold and control the touch screen panel to work.

Samsung Galaxy J4 J400F Touch Screen Ways:

Here is the hardware solution of Samsung J400F touch screen problem:
Unplug and plug touch screen strip and check.
Plug-in any other good Touch Screen and Check. This step is to verify whether the problem is in hardware or Samsung Galaxy J4 J400F touch screen is faulty.
If the problem is in hardware then clean touch on board connector and check.
Gently heat surrounding components of touch screen and check.
Re-solder each pin of touch connector and check.

Here is the hardware solution of Samsung Galaxy J4 J400F touch screen problem:
Unplug and plug touch screen strip and check.
Plug-in any other good Touch Screen and Check. This step is to verify whether the problem is in hardware or Samsung Galaxy J4 touch screen is faulty.
If the problem is in hardware then clean touch on board connector and check.
Gently heat surrounding components of touch screen and check.
Re-solder each pin of touch connector and check.

Samsung Galaxy J4 J400F Touch Screen Ways Problem Jumper
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