Originally Posted by
Zerox
I have actually replaced a laser in my own xbox, and can confirm that as long as you are just changing the laser and putting the same drive back in then you shouldn't experience any problems.
However you need to make sure that you identify the manufacturer of the drive, the laser required will differ from manufacturer to manufacturer.
From this link you can figure out the xbox specs without even opening it up, but this is only for 'phat Xbox 360', not the new silm one.
I hope that this goes well.
Oh and before you open anything/ purchase anything, up try booting the xbox and try to make it play a music CD (easy difficulty to read), and then a DVD (normal difficulty), and then an Xbox game (hard).
If nothing works then go ahead and purchase a new laser.
If the CD and DVD work but not the game then either sell the console or try and return. If this happens (plays CD/DVD but no games) it means that some moron has tried to swap the whole dvd drive without flashing the encryption key (the thing that ties the drive, specifically the board inside the drive) to the new DVD drive.
Sorry to frighten you with that, however this happened to me once upon a time, and I feel that it is my duty to warn you of the possibility of this situation occurring.
Enjoy!