Update the Touchscreen Firmware. Another way to fix the ghost touch issue on Samsung phones is to update the touchscreen firmware. Here's how you can go about it. 1. Open the Phone app and dial *#2663#. 2. Tap on TPS FW update (General). Wait for your phone to reboot and then see if the issue is resolved. 4. Restart the device People underestimate the power of "restart." Restarting works most of the time on almost every issue. When you restart a device, the software reloads, and often the bug which caused the ghost touch problem is fixed, and thus your problem is fixed. Clean the display LTgoj.

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