Good day to everybody. This is the first time I post on this forum and I hope you'll help me. I recently bought a MBA but after some months the HD gave up. So I bought a generic Samsung HS082HB 1,8" zif HD to replace the broken HD. I thought I bought the right one but my MBA wasn't able to recognize the new HD. This new HD is a generic Samsung while the original was the one with the apple apple printed on the label. So I ask you: do I need the certified one or did I miss something in replacing the HD? Many thanks to everyone!