If you have an iPhone, there is a good chance that the bottom of the phone is covered in a layer of grey bar. This is because the phone’s battery life is based on how quickly it can charge, and as time goes on, the grey bar at the bottom of the phone will get thicker and thicker. There are a few ways to remove this grey bar at the bottom of your iPhone:

  1. Use a hairdryer to heat up the bar so that it pops off easily.
  2. Use a plunger to push and pull on the bar until it comes off.
  3. Use a vacuum cleaner to suck out all of the graybar from under your iPhone.