Since patience doesn't seem to be one of your better qualities I'll tell it to ya like this, you can read that info for yourself and do it, ya don't need me to tell ya how and I don't believe I'd like to now anyway since you've practically demanded I do so, and ya should get some before ya go messing with FW flashing or you'll have a nice brick for a 360 if something goes wrong there, ya need to take your time and know what you're doing to make sure that's done right. Every tutorial you'll need on that subject and where to get the appropriate software as well as what hardware you need are in the Pinned sections of Newbie Chat and the Technical DVD-ROM sections of the forums. If ya wanna replace the whole drive that's your call, but it really sounds like only the laser is bad and that's all that should need replacing. If ya bought another Samsung drive, doesn't have to be an ms28, it can be any version of it, then just swap the logic boards between them and the new drive with your old logic board will be your new drive to use in the 360, don't have to do any flashing that way either, but it's only a valid option if the problem with the drive isn't on the board to start with.