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How to Change the color of the LED flash on your iPhone 4

If you want something more than the standard white flash from the LED on your iPhone 4, sure you could take it apart and replace it with a new colored LED or cover it with colored material, but why would you want to do all that when you can do something a lot cheaper and A LOT CHEAPER!

This video will show you the simplest way to change the LED color on your iPhone device. Just go to Staples, or any other office supply store, and pick up a few things, like some rectangular Post-it Notes. Actually, they're Post-it Flags. All you do is place the colored (and somewhat translucent) paper over the LED and enjoy the light show! If you add a case, you won't even be able to see the Post-it!

Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check our list of supported iPhone and iPad models, then follow our step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.