Dell Inspiron 14 7415 2in1 Display Ghost Touch Issue

It Happened only on using Active Pen for a period of 30 minutes and above .Is there any display firmware / Bios update expected to release 

Here are the steps:

1. Make sure the screen is completely clean and free from buildup.

2. Go to Dell's Drivers and Downloads website and use your service tag to find all the drivers for your model.

3. Locate the driver titled, "LCD touch re-calibration (Dell Internal Only)" and download it. This will download a file called "LCD touch re-calibration.zip" to your computer.

*Note: The fact that this file is labeled "internal only" and is password protected suggests that it could make breaking changes to your computer, so proceed at your own risk.

4. Locate the .zip file on your computer and unzip it. The password is: breakfix (Credit to Drew Graybeal for the password)

5. Run the file ReK.exe. Read the warning screen about making sure nothing is touching the screen and staying away from radio interference and stuff. Hit "Continue" and wait a couple seconds for the magic to happen.

On my device this instantly fixed the ghost touch issue, but left a narrow strip of dead zone from the top to the bottom of the screen that wouldn't respond to any touch. That suggests to me that my ghost touch issue was caused by actual physical damage. And yes, the narrow strip was in the same location where most of the ghost touches occurred. I was happy with this result, as the dead zone is something I can work around, while the ghost touches made the computer practically unusable.

Let me know if this does or doesn't work for you and any oddities you notice.

LCD Touch Calibration Utility