I believe many people will be sad if beloved iPhone LCD Touch Screen broken. Expensive repair charge collected by professional repair shop is one of reason. Now let's share a way to save money---how to do by yourself.
Remove the two bottoms 3.4 mm screws which is next to the lightning connector with screwdriver.
With the Metal Disassembly Rods Crowbar to create enough space to insert Triangle Opening Picks. Use a triangular opening picks through the sticky adhesive tab and carefully remove the iPhone 7 display assembly from the back cover. Please noted that iPhone 7 opened along the side rather than the top differs from other models and do not remove the display assembly completely cause it is still connected to the iPhone.
With tri-point screwdriver to remove the following four tri-point screws and use tweezers to put down the iron sheet. Please remember the precise places for these screws cause they are in different sizes. The cable on the logic board is rolled up by the bracket. Removing the 2 Phillips screws below to secure the bracket covering the upper component display cable. Disconnect the cable and remove the iPhone 7 display assembly from the phone.
Remove the following 6 Phillips screws, followed by the metal clip they secure in place. Easily extract the stereo-enabling speaker. Use the tweezers to help remove the tangled up 7-megapixel iPhone 7 Front Facing Camera Cable Assembly. It includes the front-facing camera, microphone, proximity sensor and ambient light sensor.
Remove the following 4 Tri-Point screws and then the metal bracket. It is quite easy to separating the solid state iPhone 7 home button , with only light adhesive on the cable and no delicate gasket.
Remove the following 6 Tri-Point screws. Use the spudger to release the adhesive from beneath the bottom of the iPhone 7 LCD shield plate
Finally ,reassemble the parts step by step.