How to Recalibrate Your iDevice’s Home Button:
Step 1: Open a stock app, like Weather or Stocks.
Step 2: Press and hold your power button until “slide to power off” appears and release.
Step 3: Press and hold your Home button until the “slide to power off” goes away, and the app force quits. Your iPhone’s Home button should now be more responsive, because it has been recalibrated.
A lot of iPhone users already know this,but just in case,we thought we should bring it to your attention.