I went with this replacement screen when i cracked my original, I've also replaced my wifes iPhone 5 LCD screen
so I've had some experienece.
Right off the bat, you need to take your time when replacing these. Any one thing can go wrong and thats where I feel a majority of the bad reviews for this product stem - people dont know what they're doing, rush it and cut, crimp, bend, or break something.
You will need to remove things from the original screen like the metal backing, clear plastic camera hole, rubber piece for ear slot, wire mesh for ear slot, grounding tape (attached to original screens metal backing), etc. Any decent youtube video will tell you this. If you want your replaced screen done properly, do this. You will need to add a straight edge blade to your tool arsenal, doesnt need to be sharp but a box cutter blade is ideal for working the screen out of the housing (just above the headphone jack is the place to work the blade in between the housing and the screen). Then use the provided plastic tool to work around the edges to fully remove the screen.
I wont lie, even with experience, after putting my new screen in, I had blue lines show up initially, I went back to the screen connections on the motherboard and rechecked them. After loosening the metal plate a bit the screen worked fine. I tightened it way too tight, drive them in so they're snug, not like they're keeping the wheels from falling off your car. You will also need a work area to keep track of all the little pieces, if you have parts left over you did something wrong. Also, when fitting the screen back into the housing, run your fingers down the side touching the screen and housing, with slight force, do not push on the middle of the screen!
What I didnt know - restart your phone after completion to ensure the finger print reader on the home button works! This thing is very sensitive and any loose connection will botch it. Not realizing this and figuring I did something wrong, I spent way more time then i shouldve troubleshooting... All I needed was a fresh phone restart and finger prints worked like a charm. PROVIDED this was my original home button, that was attached to my original motherboard. IF YOURE REPLACING YOUR ORIGINAL HOME BUTTON FINGER PRINT ID WILL NO LONGER WORK!
This apple replacement parts
worked like a charm for me, and for $30 thats pretty awesome. Becareful, watch a couple youtube videos, and good luck! Apple IPhone LCD Screen Digitizer Assembly Replacement Parts Wholesale