The ultra-wide module on the iPhone 13 Pro is popular for macro shots, which also makes it vulnerable to dust and impact. A common shop complaint is a persistent purple or magenta spot that appears in daylight photos but disappears in low light. Knowing whether the issue is the lens, sensor, or optical filter saves the shop from ordering the wrong part.
Three Spot Patterns, Three Causes
| Pattern | Likely Cause | Fix |
|---|---|---|
| Sharp purple dot, same position at all zooms | Dust on sensor cover glass | Clean or replace module |
| Blurry halo in ultra-wide only | Rear lens glass crack | Replace lens glass only |
| Color fringing near image edges | Optical filter delamination | Replace camera module |
Quick Diagnostic Flow
- Open Camera app and switch to 0.5x.
- Tap a white wall. Note any spot.
- Cover the ultra-wide lens with a finger. If the spot stays, it is in software or another module.
- Switch to 1x. If the spot vanishes, the ultra-wide module is the culprit.
Part Quality Matters
Aftermarket ultra-wide modules for the 13 Pro often fail calibration and disable ProRAW. Shops should source programmed modules or plan to restore the original sensor pairing.
- iPhone 13 pro parts collection
- iPhone replacement batteries
- iPhone charging ports
- iPhone camera modules
- speakers and haptic motors
- iPhone flex cables
- SIM card trays
Margin Note
Lens-only replacement is a 20-minute job with high margin. Module replacement takes longer and carries calibration risk, so price accordingly and stock both options.
Frequently Asked Questions
Can I clean the sensor without replacing the module?
Sometimes, but the clean room must be dust-free. One stray particle ruins the repair.
Does Apple block third-party ultra-wide modules?
iOS may show a generic Camera warning, but photo quality is the bigger concern.
What tool removes the lens glass?
A precision lens removal clamp or micro-lathe with a model-specific mold.
ScrnFix Team supplies wholesale iPhone replacement parts for repair shops and distributors worldwide. Browse our collections for consistent stock, fast shipping, and tested quality grades.