1 - 2 uren
My son had cracked his LCD and could not use his 4S any longer. We thought a $40 replacement screen would be better than a new $650 phone.
On my first attempt, I got half way through the steps in the online guide before I ran into the flathead stand-off screw holding down the logic board. The kit I purchased from ifixit.com did not include the 2.0mm flathead driver needed for this screw, despite claiming that it came with all tools necessary. Since I was on vacation, I had no choice but to put the phone back together and wait until we got home.
Once home and with access to my tools, the repair completed without any difficulty. I love the ifixit.com guides.
The instructions say you need a 2.5mm flathead driver, but this is too big. Make sure you have a 2.0mm flathead before you start. Also, it is super important you have a stable surface with discrete locations to store the screws from each step. There are so many screws and little parts that come out during this process, if you don't have a place to keep them safe and separated... you're going to have a bad time.