How do I clean the back of the phone without damaging it in any way

[android jack]

So I got the m8 and usually I got its case on but sometimes I need to remove it to clean any dust or any other thing. I want to clean it but not sure what I should use or what not to use. So any suggestions?

 

[B. Diddy]

I would just use a soft cloth and a little rubbing alcohol. Don't use water.