Recently...my brother stepped hard on my macbook air diaplay panel....the entire panel was replaced by a local vendor I got my macbook air screen replaced by a local vendor(my macbook sir was/is still under warranty) for $350, while apple quoted $800...the local vendor had my same macbook air model with him, he detached the display from that model and put it on mine! ....an it started working... This is just to say its an original Apple full panel, for the same model... Now, being still under warranty, my USB port doesnt work, my front camera does not work (just as a side note, the front camera did not work even before replacement,,i was very lazy to not report to apply for a repair) ... Now, when i go to apple for these repairs .still under warrantyl, will they repair for free? does the display panel have a serial code or something where they can tell that it has been FULL replaced? Will they not know anything about it and repair my macbook? Btw its 2013 macbook thoughts?