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Maintenance
Firmware Update
The firmware of Osmo Action 3 is updated using DJI Mimo.
Make sure the battery level of Osmo Action 3 is at least 15% before updating its firmware.
Connect Osmo Action 3 to the DJI Mimo app. If new firmware is available, users will be
notified by DJI Mimo. Update the firmware according to the on-screen instructions. The
update takes approximately two minutes.
Underwater Usage Notes
Osmo Action 3 can be used underwater at depths of up to 16 m. When used with the
Osmo Action 3 waterproof case, the device can operate underwater up to 60 m deep.
Observe the following precautions when using the device in water.
1. Make sure the battery and battery compartment are dry and clean before inserting
the battery. Otherwise, it may affect the battery’s contact and waterproofing ability.
Make sure the battery compartment cover is firmly fastened after the battery is
inserted. Note: if the cover is properly mounted, the orange marks on its bottom will
not be visible.
2. Make sure the USB-C port cover is clean and closed before using. Otherwise, it will
affect the device’s waterproofing ability.
3. Make sure the lens protective cover is in good condition and intact. If damaged,
replace it immediately. Make sure the lens protective cover and lens are dry and clean.
Sharp or hard objects may damage the lens and affect the device’s waterproofing
ability. Make sure the lens protective cover is properly tightened during use.
4. Osmo Action 3 is not waterproof unless the battery compartment cover, USB-C port
cover, and lens protective cover are firmly mounted and fastened.
5. Avoid jumping into water at high speed with Osmo Action 3. Otherwise, the impact
may result in water seepage. Make sure the camera is waterproof before jumping into
water.
6. DO NOT use Osmo Action 3 in hot springs or extreme underwater environments. DO
NOT let Osmo Action 3 come into contact with corrosive or unknown liquids.
7. Rinse the camera with clean water after using it underwater. Allow it to dry naturally
before using again. DO NOT dry the camera with hot air using a hair dryer, otherwise
the microphone membrane and the built-in breathable membrane will rupture, and
the camera will no longer be waterproof.
Attach the waterproof case to Osmo Action 3 when using it while diving, surfing,
underwater for an extended period, or in other situations involving high water impact.
Observe the following precautions when using the device with the waterproof case:
1. Make sure the rubber seal is clean and firmly attached during use.