DJI O4 Relay Firmware Update Guide: DJI Agras Device Management & USB-C (Canada)
🇨🇦 CANADA — DJI O4 Relay Firmware Update: DJI Agras Device Management & USB-C for Canadian Operators
🇺🇸 Reading from the United States? See the U.S. edition: DJI O4 Relay Firmware Update Guide: DJI Agras Device Management & USB-C
This Canadian edition is written for Canadian DJI Agras operators in the orchards and vineyards of the Okanagan, Niagara and Quebec’s fruit belt. It covers the O4 Relay firmware update: aircraft shutdown, battery preparation, internet connection and Device Management in DJI Agras. The procedure, specifications and warnings below are identical to the original edition linked above — the hardware does not change at the border. What changes for a Canadian operator is the regulatory and purchasing context: the aircraft this DJI O4 Relay supports falls into Transport Canada’s medium RPAS class (25–150 kg) and flies on an Advanced Operations pilot certificate under the November 2025 rules, with a Special Flight Operations Certificate for anything outside that envelope, and pricing is shown in Canadian dollars. Ares Acres stocks the O4 Relay signal repeater system referenced in this guide as genuine DJI Agras OEM parts, ships them to Canada with free standard shipping, and shows CAD pricing at checkout.
The O4 Relay firmware workflow is managed through DJI Agras. DJI provides two update paths: an app-based update after linking the relay to the remote controller, or a direct relay-to-remote USB-C connection.
Quick Answer: Power off the aircraft before updating. Make sure the remote controller and relay have enough battery power. Power on the relay and remote controller, connect the controller to the internet, then open DJI Agras → Device Management → Relay and select the desired firmware version. Alternatively, connect the relay to the remote controller USB-C port and select the firmware version there.
Power off the aircraft before the update
DJI specifically instructs users to power off the aircraft before updating relay firmware. Keep the aircraft out of the firmware-update chain rather than leaving it powered nearby.
Check battery level first
Make sure the remote controller and relay have enough battery power. If the relay battery is low, charge it before beginning the firmware process rather than risking an interrupted update.
Update through DJI Agras
- Power on the relay and remote controller.
- Connect the remote controller to the internet.
- Open DJI Agras.
- Enter Device Management.
- Tap Relay.
- Select the desired firmware version and update.
USB-C update path
DJI also allows the relay to be connected to the remote controller USB-C port. From that connection, select the desired firmware version and update.
If linking has been failing
The linking section tells operators to check the firmware version when linking fails. That means firmware should be verified before assuming the relay or O4 Relay Antenna Pair has failed.
The hardware path is the DJI Agras T100 OEM O4 Relay Signal Repeater System, used with the T100 OEM Remote Controller in the T100 workflow.
Parts & Equipment Referenced in This Guide
- DJI O4 Relay Signal Repeater System
- DJI Agras T100 OEM Remote Controller
- DJI O4 Relay Antenna (Pair)
Every part listed above is stocked by Ares Acres as a genuine DJI Agras OEM component, ships to Canada with free standard shipping, and shows CAD pricing at checkout for Canadian customers.
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Related Tutorials
🇺🇸 Reading from the United States? See the U.S. edition: DJI O4 Relay Firmware Update Guide: DJI Agras Device Management & USB-C
Canadian Operator FAQ: O4 Relay Firmware Update Guide
Does Ares Acres ship the O4 Relay signal repeater system to Canada?
Yes. Ares Acres ships genuine DJI Agras OEM parts, including the O4 Relay signal repeater system referenced in this guide, to Canada with free standard shipping, and Canadian customers see CAD pricing at checkout.
Do I need an SFOC to use the DJI O4 Relay with my DJI Agras in Canada?
The DJI O4 Relay itself needs no aviation authorization. The DJI Agras aircraft it supports falls into Transport Canada’s medium RPAS class (25–150 kg) under the November 2025 rules and is flown within visual line of sight on an Advanced Operations pilot certificate; a Special Flight Operations Certificate is still required for operations outside that envelope, such as beyond visual line of sight or payloads Transport Canada treats as dangerous goods. Confirm current requirements with Transport Canada and your provincial regulator before operating.
Is this firmware update procedure different for Canadian operators?
No. The firmware update procedure described here is identical in every country; only the regulatory framework, the purchasing path and the units used in this guide differ. Confirm current requirements with Transport Canada and your provincial regulator before operating.
Source and revision note
Primary source: DJI O4 Relay User Guide v1.0 (2024), English Updating Firmware section.
