The Oppo A73 original LCD replacement involves carefully disassembling the device to remove the damaged or malfunctioning display assembly, which includes the LCD and touch screen digitizer. The process begins by powering off the phone and removing the SIM tray. Using appropriate tools, the back cover is gently separated to access the internal components. The battery connector is detached to prevent short circuits. Screws securing the mainboard and display connectors are removed. The original LCD is then carefully detached from the frame, often using mild heat to soften the adhesive. After removing residual adhesive, the new original LCD is aligned properly and connected to the motherboard. Before reassembling the device, the display is tested to ensure full touch and display functionality. Once confirmed, the phone is reassembled securely. This process restores the A73’s visual clarity and touch sensitivity to original factory standards.