A ‘ghost touch’ is when your Apple device seems to be acting as if it is receiving touch input, without intervention on your part. This may manifest in the form of apps being automatically selected, odd scrolling, automatic opening of menus and lag while browsing.

The root cause of ghost touching in Apple devices is a defective digitizer board. The digitizer board is an electronic component present in most modern touch screen devices. The digitizer convert touch inputs into digital data which can be accessed and manipulated by the processor of the device. In case of a new Apple device, if the digitizer has a manufacturing defect, ghost touching occurs. For a repaired Apple device, ghost touching is caused by incorrect installation of the digitizer.

There are steps you can take to help eliminate iPhone ghost touching.

If you are using a charger not manufactured by Apple to charge your Apple device, stop using the charger and switch to an original accessory. This applies to USB cables as well.

Engineers this is for you. You will need to remove the touch panel and the digitizer board. The digitizer board has a flex cable attached to it. This cable contains circuits that are responsible for transmitting user input signals. During installation of the touch panels, care should be taken that the flex cable does not bend. There is an area designated for the flex cable in the rear housing or frame of the Apple device. Make sure that the flex cable sits firmly in this area to prevent damage. If the flex cable is damaged, it may have to be replaced.

There is another precaution that should be taken while replacing the touch panel. Before installing the touch panel digitizer, it is necessary to apply a heat-resistant tape around the frame of the Apple device. This tape is responsible for absorbing static and heat. If the tape has not been properly applied, or if you have forgotten to apply the tape, ghost touching may occur.

You can refer to this Youtube VIDEO too for reference


And Last option is to get your dear Ghost Iphone replaced by an authorised Apple center nearest to your locality.