iPhone 12 Screen Refurbishment

• Initially, perform a visual assessment of the display assembly.
• Observe that theiPhone 12 exhibits a reduced border width compared to theiPhone 11 Pro,iPhone 12 border might be slightly simpler to take apart.
• Furthermore,iPhone 12 bezel no longer integrates with the glass lens, necessitating a robust adhesive to maintain its integrity and prevent separation.
• Subsequently, we will proceed with the refurbishment of theiPhone 12 display.

• Initially, verify the screen's functionality, confirming proper operation of the display, touch input, and 3D Touch capabilities.
• Position the screen with the back facing down onto the Screen Separator, adjust the heating to a temperature of 100 °C, and initiate the vacuum process.

• Begin by disconnecting the ear speaker flex cable, exercising caution as this component is susceptible to damage; pre-heating the display is essential to facilitate its removal.
• Furthermore,the iPhone 12 incorporates the ear speaker sensor ring as an integral part of the bezel.

• To proceed, we will now detach the bezel; initially, apply adhesive remover directly onto its surface.
• During the separation process with the Razor Blade it is also necessary to periodically reapply adhesive remover.
• Employ the Razor Blade in a sliding motion, alternating with gentle upward pressure to release the bezel.

• Because the ear speaker flex cable incorporates a greater quantity of adhesive, applying a more generous amount of adhesive remover will facilitate its separation.
• Grasp the bezel's two corners firmly with your hands, and carefully release the bezel in a gradual motion.
• Initially, the plan involved a full detachment of the bezel for subsequent reuse.However, the bezel is currently damaged in this location; therefore, be aware that this bezel section is constructed from a fragile plastic material, rendering it highly susceptible to breakage. Should you desire a complete bezel separation, meticulous care is essential.

• To prevent potential harm to components, a delicate film is employed for the detachment of the flex cable assembly.
• Disassembly of the bezel reveals the presence of a3M adhesive which has lost its initial adhesive properties, indicating it is no longer a cold adhesive.This 3M adhesive facilitates relatively straightforward bezel removal.

• Carefully eliminate any surplus adhesive residue from the ear speaker flex cable component.
• Initiate the separation of the OLED display from the lower section of the glass lens utilizing a Wire Cutting Procedure.
• Our analysis indicates that the iPhone 12's touch panel exhibits improved durability compared to the iPhone 11 Pro, demonstrating greater resistance to damage; specifically, the iPhone 12's touch panel possesses increased thickness and more distinct, wider cut lines.

• Position the OLED display onto the designated heating surface.
• Utilize the Electric Adhesive Removing Tool to carefully wind up the OCA adhesive,Electric Adhesive Removing Tooland subsequently eliminate any residual OCA adhesive manually.

• Establish the connection between the OLED and ear speaker flexible circuit cables, confirming proper functionality of the display and touch capabilities.
• It's important to note that failure to attach the ear speaker flex cable will disable the ambient light sensor, resulting in an excessively dim screen unsuitable for testing.

• Secure the OCA adhesive to the surface of the glass lens.
• Introduce the glass lens, already bonded with OCA adhesive, into the Bubble Removing Machine and operate it for a duration of3 minutes.
• Subsequently, place the assembly within the UV Lamp, designed for curing OCA adhesive, for a period of5 seconds.

• Thoroughly cleanse the OLED screen's surface to remove any residue, and secure one edge of the glass lens using the provided pull tape.
• Apply firm, sustained pressure to the pull tape for a duration of several seconds before swiftly detaching the protective covering from the OCA adhesive.

Due to the unavailability of a dedicated alignment fixture for the iPhone 12, precise screen positioning requires manual adjustment.
Following the alignment procedure, position the display assembly onto the laminating sponge, ensuring that the pre-cut slots within the sponge provide protection against potential damage to the OLED panel.

• Introduce the display panel into the laminating apparatus and initiate the process by selecting LCD laminate start.
• Following the procedure, retrieve the screen; observable air pockets will be present across the surface.

• To facilitate complete adhesion, reintroduce the display assembly into the Bubble Removing Machine for a duration of 10 minutes, subsequently exposing it to a UV Lamp for 180 seconds to cure the OCA adhesive.
• Following the repair, reattach the restored display to the device and verify proper operation of all features.