Thanks for the guide. We just replaced speaker assembly in my son's S3 with a $9 part off ebay, and it's working perfectly. Everything went like the pictures except there was slight difference between original and replacement. The hole next to the speaker in the replacement was a full circle, as in the last photo above, but the original was just a half-circle. We had to trim and file the replacement to match. Once we did that, it all snapped back together like new.