The helpful techs at RepairsUniverse.com put together this Samsung Galaxy S4 tear down repair guide to help those wanting to replace a cracked or broken touch screen digitizer or LCD screen. This repair guide will walk you through a step-by-step process to disassemble the Galaxy S4. You may use this guide as a reference point when performing your DIY Galaxy S4 repair. Use this guide to install the following Galaxy S4 replacement parts: Samsung Galaxy S4 LCD & Touch Screen Digitizer Assembly - White Samsung Galaxy S4 LCD & Touch Screen Digitizer Assembly - Black Samsung Galaxy S4 LCD & Touch Screen Digitizer Assembly - Purple Other Samsung Galaxy S4 Parts We suggest using the following repair tools: Small Phillips Screwdriver #00 Small Flat Head Screwdriver Plastic Pry Tools Nylon Spudger Adhesive Strips (For Screen Replacements) Heat Gun or Hair Dryer to warm and loosen adhesive All other Parts and Accessories for the Samsung Galaxy S4 can be found at RepairsUniverse.com Samsung Galaxy S4 Repair Guide: First you will want to make sure your device is fully powered off before you begin. Next remove the back battery cover as well as the battery, sim-card, and Micro SD. Then taking a Small Phillips Screwdriver #00 remove the nine (9) screws circled in the figure below See figure below for screw locations: Next you will need to take your plastic pry tool or nylon spudger and insert it between the seam of the back housing to be able to remove it from the device. See figure below for reference: Now you will see another reference figure below showing another small phillips screw that will need to be removed which is circled in red in the upper right side of the device. You will also see five (5) pop-connections and two (2) antenna cables that will need to be released in order to proceed with the dis-assembly. With all of these steps done properly you will be able to remove the motherboard completely from the device. See figure below for reference: With the motherboard now removed you can proceed by removing the two (2) small phillips screws circled in red in the figure below and you will see more components and connections will are going to remove and release from the device. See figure below for reference: You will see we have broke down the next 8 steps in the figure below. 5.1: Here you can take a small flat head screwdriver or pry tool and remove the small black cover 5.2: Use a pry tool or your fingers to remove the headphone jack 5.3: Using a pry tool remove the ear speaker and attached sensors (held down with a little adhesive) 5.4: Pry and lift out the front camera 5.5: Here we used a small flat head screwdriver to pry up and remove the vibration motor from the housing (held down with a little adhesive) 5.6: Remove the silver cover on the USB port using a pry tool or your flat head screwdriver 5.7: You will need to release the pop connector that is located on the long flex cable shown about in the mid-left section of the device. From here you can then begin peeling the flex cable and assembly from the housing and the bottom of the device. The bottom circuit board is held down with some adhesive so you will want to be very careful not to damage this flex cable assembly. 5.8: Lastly you can remove the lower flex assembly and dock port completely from the housing. See figure below for reference: To complete the dis-assembly of your Galaxy S4 you will now need to flip the screen assembly over and apply heat to the outer edges of the screen to warm and loosen the adhesive holding the LCD & Touch screen to the frame. Using your heat source on a medium setting heat the outer edges of the screen hovering roughly 3-4 inches away from the screen. Once the adhesive has been properly warmed and loosened you can now take your small plastic pry tool and insert it between the seam of the touch screen and front housing. You will get to a point to where you will want to insert a tool like the nylon spudger and get behind the LCD screen to break up and release the adhesive holding the LCD to the mid-frame. Once you have working the edges releasing all of the adhesive you will be able to completely remove the screen assembly from the housing. See figure below for reference: When installing a new screen assembly we highly suggest using fresh adhesive to secure your new screen assembly to the mid-frame and front housing. You will need to clean up any glass shards or other debris to ensure a proper and snug fit before you put your device back together. Note: RepairsUniverse.com's repair guides are for informational and instructional purposes only. Use this repair guide only as a reference to look upon during your DIY repair. Perform this repair at your own risk.