To lay the groundwork for your iPhone screen replacement, first you’ll need to procure a replacement screen (duh) and then make sure you have all the right tools, including “a few thin prying tools, tweezers, Phillips 000 screwdriver, suction cup, and a special pentalobe screwdriver.”
Once you’ve done these preparations, replacing your screen should take no time at all: First you remove your iPhone’s SIM card, then you remove the broken display by undoing all its screws and disconnecting all the attached cables. The next step is to transfer your device’s home button from the cracked screen to your replacement screen — Detwiler says this step is particularly crucial for anyone who owns an iPhone 5s since the replacement screen you ordered otherwise won’t have the Touch ID fingerprint sensor.
And finally, once all this is done, it’s time for you to attach the replacement screen by connecting all the cables and fastening all the screws you removed when taking off the broken screen.
Our little summary doesn’t do Detwiler’s detailed instructional video justice so you should really check out the whole thing yourself by clicking the source link below.