Symptoms
- Camera app opens but the preview area is completely black
- Shutter button and settings icons still visible
- Flash may fire even though preview stays black
- Switching between front and back camera doesn't help
Likely causes
- CommonSoftware glitch preventing the camera sensor from initializingA background conflict can stop the live feed from rendering even though the app opened.
- CommonLens blocked by a case, sticker, or dirtA fully covering obstruction can sometimes show as solid black rather than a blurry image.
- PossibleCamera hardware or ribbon cable failureA disconnected or damaged camera module can produce no image at all.
What to do
- Check that nothing (case, sticker, finger) is covering the lens.
- Force close the camera app and reopen it.
- Restart the phone.
- Switch between front and back camera to see if only one is affected.
- Test a third-party camera app if available to see if the issue is app-specific.
- Update the operating system.
- If the phone was recently dropped, treat this as a likely hardware issue.
Tools and parts
- Microfiber cloth
Rear or front camera moduleSearch: “camera module replacement for [your phone model]”
When to call a pro
See a repair shop if the black screen persists after a restart and cleaning the lens, especially if it followed a drop.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.