Power off the iPhone 7 Plus completely and remove any case or screen protector. Gather all necessary tools and replacement parts.

Use a heat gun or hairdryer to warm the edges of the device. Carefully insert plastic opening tools to separate the back cover from the frame.

Locate the battery connector and carefully disconnect it using plastic tools. This is crucial for safety during the repair.

Locate the rear camera assembly. Remove any screws holding it in place and carefully disconnect the ribbon cable.

Position the new rear camera assembly in place. Reconnect the ribbon cable and secure with screws.

Carefully reconnect the battery connector. Ensure it's properly seated and secure.

Power on the device and test the camera functionality. Take test photos to ensure the camera works correctly.

Replace the back cover, ensuring all clips are properly engaged. Clean any fingerprints or debris from the device.