I would take it apart and put it on a hard flat surface and burnish it from the back with a piece of smooth stainless steel. A small bar of steel works and I've used dental instruments for small jobs rubbing back and forth. Practice on something else first till you understand burnishing. Here's a site that might help you: http://www.votawtool.com/zcom.asp?pg=products&specific=jnmqpqf0
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I would take it apart, here's how: http://www.ifixit.com/Device/iPad_3G#deviceTeardowns
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and put it on a hard flat surface and burnish it from the back with a piece of smooth stainless steel. A small bar of steel works and I've used dental instruments for small jobs rubbing back and forth. Practice on something else first till you understand burnishing. Here's a site that might help you: http://www.votawtool.com/zcom.asp?pg=products&specific=jnmqpqf0
I would take it apart and put it on a hard flat surface and burnish it from the back with a piece of smooth stainless steel. A small bar of steel works and I've used dental instruments for small jobs rubbing back and forth. Practice on something else first till you understand burnishing. Here's a site that might help you: http://www.votawtool.com/zcom.asp?pg=products&specific=jnmqpqf0