Symptoms
- Flash doesn't pop up or fire when triggered
- Flash icon shows an error or warning
- Flash fires but photos still look dark
- Flash was working before but stopped suddenly
Likely causes
- CommonFlash mode set to off or a mode that doesn't use flashSome shooting modes disable flash automatically.
- CommonLow battery unable to power the flash chargeFlash requires a burst of power that a weak battery may not supply.
- PossibleExternal flash not seated or connected properlyA loose hot shoe connection can prevent firing.
- PossibleFlash needs more time to recharge between shotsRapid shooting can outpace the flash's recharge cycle.
- Less commonFailing flash capacitor or circuitHardware fault that requires professional repair.
What to do
- Check the camera's flash mode setting and switch it to on or auto rather than off.
- Charge or replace the battery and test again.
- If using an external flash, remove and reattach it firmly to the hot shoe.
- Wait a moment between shots to allow the flash time to recharge fully.
- Test the built-in flash separately from any external flash to isolate which one has the issue.
- Check for a flash exposure compensation setting that may be set very low, making flash seem weak.
- If the flash won't fire at all with a charged battery and correct settings, it may need professional repair.
When to call a pro
If the flash still won't fire with a good battery and correct settings, have a camera repair shop check the flash circuit.
Safety
Use caution
Do not attempt to open or service the flash unit yourself; the internal capacitor can hold a dangerous electrical charge even when the camera is off.