I've searched and searched and cannot find any details as to the method or how people made out doing this. I got an extra black glass iPhone 4 back to strip, to make clear. I was first going to try to do it without removing the edge... but the metal shielding made that too hard. I had to remove the edging so I was left with just the glass peice. Paint thinner did not work (at all). I had read that someone had just scraped the paint off... which seemed to work. I got most of it scraped off, but there seems to be some residue left over that I cannot get off. At first, it looks like scratches, but up close it does not look or feel like scratches. It feels "rough" while other sections feel smooth. Even after getting 98% of the paint off, paint thinner still doesn't work.. nor does windex (ammonia). Any other ideas? Anyone else do this? Thanks in advance.