Upgrading the firmware on the vs-570f – Bolt VS-570F Wireless TTL Flash for Cameras User Manual
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Positioning Remote Flash Units
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• The wireless sensors are located on the front of the VS-570F. Make sure that sensor is facing the master
flash and that there is no obstruction between the two units.
• When photographing outdoors or in bright ambient light, the sensors can be overwhelmed by ambient light,
which will lower their sensitivity.
• To avoid creating interference between flash units, using more than three in a single group is
not recommended.
Upgrading the Firmware on the VS-570F
In order to ensure compatibility with future cameras, the VS-570F’s firmware may be updated. This can be
done to ensure proper communication with new cameras, or to add new features.
Visit www.boltflashes.com/firmware to check if a new firmware version has been released. Follow the online
instructions to upgrade.