1. The power cannot be turned on or the flash does not fire.
Please check whether the battery is installed correctly and whether the
battery power is sufficient or not; please make sure that the flash hot
shoe is installed in place, and the flash fixing knob is locked.
2.Cannot flash in radio transmission wireless shooting.
Please make sure that the RF radio trigger signal, the channels and the
ID of the slave unit and the master unit are set to the same, and the
slave unit is placed within the effective wireless transmission range of
the master unit.
3. Cannot flash in optical transmission wireless shooting
When using it outdoors, please avoid direct sunlight to the wireless
sensor of the flash; make sure that the channels of the master unit and
slave unit are set to the same, and the slave unit is within the effective
wireless transmission range of the master unit.
4. The photo is underexposed or overexposed.
Check whether the camera's shutter, aperture, and sensitivity (ISO) are
too close to the flash limit, or whether the flash-related settings such as
exposure compensation on the camera and flash are correct.
5. The photos appear dark corners or subject can be only partially
lit up.
Please check the current flash coverage; Please check whether the lens
focal length is beyond the range of the flash, if so, you can try pulling
out the wide panel to enlarge the coverage of the flash.
6. The flash control panel display blurred.
There is a layer of film on the screen when it is out of the factory, you
can tear it to enjoy more clear visual effect.
7. Other abnormal situations
Please try to turn off the power of the flash and camera, remove the
flash from the camera and install again, and then restart the power of
the flash and camera. If there are still abnormalities, you can contact
YONGNUO after-sales service hotline 400-0013-888 or send an email to
[email protected] for help.
Troubleshooting Guide
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