I just did mine and it was a fiasco. The available replacement screens do not work for some reason. The phone turns on, makes sounds, vibrates; the home, screen, and back keys light up, the connectors are all correct but the screen is dark. I did an exchange for the LCD/Digitizer combo and same results.
Taking the phone apart is not a big deal, no different than other Motorola and Samsung phones and you can see many DIY guides on Youtube, the messy part is that the screen is glued to the frame and you need a heat gun to remove it to re-attach you need a special double sided 3M 2mm tape if you want it back to original, otherwise superglue will do.