Last updated on August 18th, 2017


It’s a Test Function option which pops up in SAMSUNG phones where you can enjoy different colors of light right from ypur Samsung mobile. You can test your sensors, cameras, sound and touch calibration also.

Touch calibration

I became aware of this from my friend . It’s a useful option where you don’t need to download any apps for your Samsung phone.

You don’t need to have a Smartphone to do this you can do this with any of your Samsung phone.

Sensor test

I haven’t tried it on other phones
Do try and let us know in the comments section below…….

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A freelance tech journo who started TechLegends. He has had bylines at a variety of publications that include Ubergizmo, It's Foss, WindowsReport, TechLila, TechReviewPro, and Tech Cocktail. You will usually see cats dancing to the beautiful tunes sung by him. He is also keeping up with his B.Tech in Comp. Sc.

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