If your phone has just one main button that will wake it up and get things done, it could be pretty frustrating when that button doesn't really work as it has to. If you have an iPhone 4 or 4S, you know what exactly it will be like.
Well, it is known that the Home button is prone to unresponsiveness and lag. Most users blame the Home button issues on either dirt, moisture, or misalignment. Whatever be the reason, the busted Home button will ruin your experience.
To your rescue, there are a few things you can try out to get your iPhone home button working pretty well. These tricks can help you if the warranty of your iPhone is over.
Calibrate Your iPhone
The very first thing you should try with your iPhone is calibration. It's the fastest and easiest method for fixing your Home button and it won't work for everyone. Just open up one of the native iPhone apps like Weather or Clock, and press and hold the sleep button until the slide to power off swipe bar appears and release the button. Now, press and hold the Home button until the phone returns to the home screen.
Realign Your iPhone's Connector
How long have you had your iPhone for? Probably, you have charged it once every day since the first day you got it. It's quite possible that you might have inadvertently shifted some things out of place while plugging and unplugging the connector. Since the Home button is directly above the connector port, it's common for the connector cause a misalignment in the home button. Simply plug the connector into your iPhone and push down gently on it so that it forces the Home button upwards.
Restore Your iPhone
Restoring your iPhone is the most common fix for your Home button lag. Just make sure to back up all of your data in iTunes before you restore your device. To restore your iOS software, connect your iPhone to iTunes and select it under Devices. Find the Summary tab, then click Restore.
Clean the Home Button
Like anything, the iPhone's Home button can get dirty resulting in a loss in its functionality. Lint from your pocket can find its way into the small crevice encircling the home button. In order to clean this out properly, use alcohol and a cotton swab. Put a few droplets of alcohol directly on the Home button and push down on it using the cotton swab. After a few minutes, the problem might and then check to see if that fixed the problem.
On-Screen Home Button
If all of these other methods fail and your Home button simply does not function, you always have the option to enable the on-screen Home button. Go to Settings → General → Accessibility → Assistive Touch. Turn on Assistive Touch and a small circle will appear on the screen. From there you can control volume, Siri, screen lock, and add favorites as well.
Replace Your Home Button
For the those of you who like a challenge, you can try and replace the iPhone Home button on your own. The process is tedious and very difficult, so it's best to do this as a last resort.