Read the comments before you proceed with this guide. There are some notable differences between CDMA and GSM, including:
* Volume and power buttons are probably soldered to the mainboard
* The vibrator is separate from the bottom speaker assembly and should be carefully removed using a spudger (but be careful not to tear the soldered wires
* The screws are located in different positions, all on top of the back plastic cover
** Step 4: I didn't have an additional screw below the plastic back
* Comments on Step 7 are great - to replace the USB ribbon, you must gently lift the bottom of the mainboard up, slide out the old USB ribbon, and slide the new one in. Don't take the mainboard completely out, or you'll break the soldered power and volume connections.
Good luck and happy fixing!
I know it's late, hopefully someone else reading this finds this helpful - the digitizer cable on my screen was slightly tucked under the display, on the inside-facing side of the replacement front screen. When I put everything together, it didn't reach, so I gently tugged on it. Welp, it tore. Took it apart to find out what I did wrong, and I was able to carefully unfold the digitizer cable from the LCD. Had I been patient and disassembled the phone and worked the digitizer cable until it came out, I would have had it fixed. Go slow, be careful, don't shy away from backing up a few steps if you need to make sure it's right!