Product Name: iPhone X Series Rear Camera Lens Assembly

Compatibility: iPhone XS Max

Replace this camera assembly to resolve issues specifically related to the rear camera system, such as:
Complete Camera Failure: One or both rear cameras do not open in the Camera app, show a black screen, or cause the app to freeze/crash.
Blurry or Out-of-Focus Images: Images from a specific lens (Wide or Telephoto) are consistently blurry and auto-focus fails to correct.
Image Stabilization Failure (OIS): Noticeable and constant shaking or jitter in the viewfinder and recorded video on either lens (both have OIS).
Black Spots or Shadows in Photos: Permanent dark spots or smudges appear in all images from a specific lens, caused by dust or debris on the internal sensor.
Lens-Specific Malfunction: The Telephoto or Wide lens does not switch to or function when selected.
Portrait Mode Failure: Inability to take Portrait mode photos due to one camera failing.
Physical Damage: Cracked or scratched external lens cover, or visible damage to the camera module itself.

Professional installation is highly recommended.
After installation, you must thoroughly test:
Dual Lens Function Test: Open the Camera app and switch between 1x (Wide) and 2x (Telephoto) lenses. Verify each viewfinder is clear, switches smoothly, and captures photos without black screens or crashes.
Autofocus Test: Tap to focus at various distances on both lenses. Ensure focus is fast, accurate, and maintains lock.
Optical Image Stabilization (OIS) Test: Gently hold the phone while viewing through each lens. Observe for abnormal, rattling vibrations (indicating OIS failure) vs. the normal, subtle floating movement.
Portrait Mode Test: Take Portrait mode photos to ensure both cameras work together correctly to create depth effect.
Video Recording Test: Record short videos using both lenses. Ensure video is smooth, stable, and audio is recorded clearly (verify microphone transfer).
Flash Coordination Test: Take low-light photos with flash to ensure proper synchronization with both cameras.
System Recognition & Reboot Test: Reboot the iPhone. Open the Camera app and verify both lenses are recognized and function normally.

Quality & Warranty Promise
Every camera assembly is visually inspected for lens clarity (internal and external) and connector integrity. It undergoes a basic power-on and image capture test on each lens before shipment.
This product is backed by a 90-day warranty from the delivery date. If the camera module(s) fail due to non-human causes (not from installation error, damage during microphone transfer, liquid damage, or physical impact), we provide a free replacement. Please inspect the part upon receipt and contact us with any issues.