How to clean back of iPhone 6?

So when I try and clean my iPhone it seems to just spread the dirt and take away shine and leave smuges. Is there anything I can use to wipe it down thanks.

You can use a microfiber cloth with screen cleaning spray. Just spray couple squirts on your cloth and rub the phone with the cloth. DO NOT spray directly on your phone. I recommend taping down ports and cracks so no water gets in them. If you do not have screen cleaning spray, DO NOT use any household cleaners such as Windex. You can just make the cloth a bit damp with water and rub the back of your phone. Hope this helped you!

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