Symptoms
- Camera preview looks foggy or hazy
- Fog is visible under the glass, not on the outer surface
- Often follows a temperature swing (cold to warm) or a splash
Likely causes
- CommonSudden temperature change causing condensationMoving a cold phone into a warm, humid space (or vice versa) can condense moisture inside the lens housing, similar to a cold drink glass sweating.
- PossibleMinor water exposure that got past the lens sealA splash or humid environment can let a small amount of moisture in over time.
What to do
- Stop using the camera and let the phone sit in a dry, room-temperature area.
- Avoid using a hair dryer or other heat source, which can damage the camera components.
- Placing the phone near (not in) a bag of silica gel packets can help absorb moisture faster.
- Check the camera preview every few hours; condensation from a temperature change often clears within 12–24 hours on its own.
- If fog persists for more than a couple of days or keeps returning, moisture may be trapped past a broken seal and needs professional attention.
Tools and parts
- Silica gel packets (optional)
When to call a pro
If the fog doesn't clear within a couple of days, a repair shop can open the camera housing and check for a broken seal or lingering moisture.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.