So I bought a used Galaxy S3 online last two days. I can't help but keep noticing these few bubbles on the front glass. At first, I thought it was from the screen protector, but it's outside the screen protector. I keep trying to find an edge of whatever this is so I can peel it off but I can't find any edges at all.. Maybe it's wrapped around the glass and the edge is maybe at the back? I don't know.. I also asked this dude I bought it from but he said he just got it from some other guy and he doesn't know about it. But he gave me a 1 week personal warranty. Any of you guys know what this is? Please, I need some help ASAP. The phone looks really fresh and all. But these bubbles bother me.. Thanks.