Samsung A72 Screen Replacement Guide: Step-by-Step Teardown Tutorial
Samsung A72 Screen Replacement Guide: Step-by-Step Teardown Tutorial
The Samsung Galaxy A72 is a great phone, but accidents happen, and sometimes a screen replacement becomes necessary. In this guide, I’ll walk you through the complete teardown process for replacing the screen, covering each step with tips to avoid potential pitfalls. I used the [PT-T11] [71-in-1] professional phone repair toolkit, which includes everything needed for this project.
Step 1: Power Off the Phone and Warm the Back Cover
Before diving in, ensure the device is powered off to avoid accidental short circuits. We’ll start by using a magic self-heating pad, placing it on the phone’s back cover to loosen the adhesive. Leave it in place for about 10 minutes. This gentle heat softens the adhesive, making it easier to pry open without damaging components.
Step 2: Remove the Back Cover
Once the adhesive is warmed, use a thin metal blade to create a small gap along the edge of the back cover. Insert a plastic card into the gap and slide it around the perimeter to carefully pry open the cover. The A72 has a plastic back, so it’s less fragile than glass, but be cautious—using metal tools can scratch it. Stick to plastic tools for this part to keep the cover in pristine condition.
Step 3: Unscrew and Remove the Internal Covers
With the back cover off, it’s time to tackle the internal components. There are 15 Phillips 1.5 screws securing the inner covers. The screws are set tightly, so using a high-quality precision screwdriver is key. I used the GTN30 S2 steel precision screwdriver, which worked perfectly. A regular screwdriver may struggle here, and poor-quality tools can strip the screws, making removal difficult.
Step 4: Disconnect the Battery and Remove Components
After removing the screws, use tweezers to lift off the speaker and mainboard covers. Start by disconnecting the battery, then detach the mainboard ribbon cable. There’s a black Phillips 1.5 screw located under the mainboard camera—don’t forget to remove it. Next, take out the SIM tray and disconnect other connectors and the camera to free up the mainboard.
Step 5: Remove the Charging Port and Fingerprint Sensor
In the lower part of the phone, there’s another black screw securing the charging port board. Remove this screw along with the antenna flex cable to fully detach the charging port. Carefully remove the fingerprint sensor, which is held down by double-sided adhesive. Take extra care here, as the ribbon cable is delicate. The vibration motor also has adhesive, so it may require a bit more force to pry off safely.
Step 6: Carefully Remove the Battery
Since we’re only replacing the screen, we’ll need to reuse the battery, so it’s essential to remove it without causing damage. Apply a few drops of alcohol along the edges of the battery to help dissolve the adhesive. Start with a plastic pry tool to avoid puncturing the battery. If it doesn’t budge, reheat the magic self-heating pad and try again. If necessary, switch to a metal pry tool, but use it carefully—work around the edges and apply gentle pressure. Once the battery loosens, you can lift it out safely. The adhesive’s stickiness should be reduced significantly by the alcohol.
Step 7: Replace the Screen Assembly
With everything disassembled, you’re left with the phone’s frame and the old screen. Now, swap in the new screen assembly. Align it carefully with the frame, ensuring it fits securely.
Step 8: Reassemble the Components
Reinstalling the parts is relatively straightforward. Begin with the mainboard, reconnecting all the cables and ensuring each component is aligned correctly. Replace the two black screws where they were originally. Attach the battery last and apply gentle pressure on each connector to make sure it’s properly seated. If the adhesive on the battery or vibration motor no longer holds, add a bit of double-sided tape to prevent them from moving around.
Final Thoughts
And that’s it! You’ve successfully completed a Samsung A72 screen replacement. This teardown demonstrates the importance of quality tools, like those found in the PT-T11 71-in-1 professional phone repair toolkit, which includes everything needed to tackle even the toughest repairs.
Thank you for following this guide, and happy repairing!
Spare Parts：
[ORI][With Frame] Samsung Galaxy A72 (SM-A725/A726) LCD Touch Digitizer Screen Assembly
[EB-BA426ABY] Samsung Galaxy A32 (A326) / A42 (A426) / A72 (A725 & A726) Replacement Battery
Samsung Galaxy A72 4G (SM-A725) Unlocked Working Main Board Motherboard
