Help Galaxy S3 stains on bright background. Should I open it up and try to clean it?

[cubrilopetar11]

Hello.
So I dropped my Samsung Galaxy SIII and the glass cracked (not the display tho), and I got to repair it. When I got him back, there was a little stain, but barely noticeable. After that, a friend dropped my phone and the glass part separated from the phone, but we could put it back. So my phone works perfectly, except now there are more stains that are visible on white or bright backgrounds (see attachments). After a while, this really started to annoy me so I tried something. I discovered that I can separate the glass from the phone. It seems risky, so before I do anything, I want to post it here.What do you guys think? Should I do it, and if I do, what then? Should i clean the display with something, blow on the display or what?

 

[funkylogik]

Yeah theres bits of dirt in there. Id try blowing them away first instead of touching them. If that doesnt work, do it gently with a clean cloth unless someone here knows a better technique :thumbup: