Last updated by Rachel N on 01/08/2025

How to Fix DJI M400 Payload Connection Issues (L2, P1, and More)

Exciting Rental Fleet Updates as at April 2025 


  1. DFH is now offering a simple credit card hold option for the value of the items you rent as the security deposit (EFT upfront no longer required).
  2. Your rental becomes free of charge if you decide to purchase the same item brand new within 14 days of the rental period.
  3. Rental fleet significantly enlarged as at March 2025, adding several units including Matrice 4 E, Matrice 4 T, H30T, M350 RTK, RTK3, flood lighting systems, tethered power solutions, M3M etc.
  4. We maintain a large and well managed Aus wide fleet of drones for dry hire. One of the models you are looking for may not be far from your location – call 13000 029 829 and ask for Rachel to get a quick heads up on the nearest location and best hire price for the item you need.  


Contact Rachel our hire fleet manager:

[email protected]

1300 029 829

0490233192



Many customers who recently purchased the DJI Matrice 400 (M400) have reported an issue where the drone cannot link to payloads like the Zenmuse L2 or P1.


We also have the youtube video guiding you through the process ^^ Step-by-step video guide


Why Does This Happen?

This issue occurs because the payload firmware is outdated and does not recognize the newly released M400. While the M400 comes with the latest firmware, older payload versions were designed for the Matrice 300 RTK.


Currently, this cannot be fixed by connecting the payload to DJI Assistant 2 via USB, as the update will fail when the payload is not recognized. Instead, you need to perform an offline firmware upgrade using an SD card.



Steps to Pair M400 with Payloads (L2, P1, etc.)

  1. Download the Latest Firmware

    • Search for the latest firmware update for your payload (e.g., Zenmuse L2 or P1) on the DJI official website.

  • Download the .BIN file (example: Zenmuse L2 Firmware v05.00.10.01).



  1. Prepare the SD Card

    • Insert an SD card into your computer using an SD card reader.

    • Pull the downloaded .BIN file into the root directory of the SD card.

  2. Insert the SD Card into the Payload

    • Remove the SD card from your computer and insert it into the payload.

  3. Power On and Connect

    • Turn on the M400 and the remote controller.

    • Ensure the payload is properly mounted and connected to the aircraft.

  4. Firmware Update Process

    • The payload will start updating automatically.

    • Indicators:

      • White lights will blink.

      • You’ll hear four long beeps during the update process.

    • Wait approximately 5–10 minutes for the process to complete.

  5. Update Complete

    • When the update finishes, you’ll hear two short beeps followed by two long beeps.

    • Power off the aircraft.

  6. Clear the SD Card

    • Remove the SD card and insert it back into your computer.

    • Delete the firmware update package from the SD card to avoid re-installation.

  7. Reinsert the SD Card

    • Place the SD card back into the payload.

    • Power on the aircraft and remote controller.

    • Your payload should now link successfully and be ready for activation and use.


Pro Tip

Always ensure your M400 and payloads are running the latest firmware versions to maintain compatibility and performance.


Need Help?

If you encounter any issues during the update process, Drones For Hire can assist with payload firmware upgrades, DJI enterprise support, and M400 integration.


Contact us:

1300 029 829 | [email protected]





Drones For Hire videos
35-min video: T50 Full Spraying Demo
2-min video: Customer scouting stock yards, feral pigs and even mustering.
T30 demo, T40 demo, and T50 demo
8-min video: summary of the T50s flight modes available on controller screen
2-min video: see the high flow rate and penetration a DJI T50 can deliver
Video the T50 holding its droplets in a controlled vortex bubble over a rice plantation
Go to all our YouTube videos (demos, how-to videos, Shorts)
Spray drone related links
Get fast local quotes for contractor spraying or mapping work here
View dry-hire drone rental fleet and prices
DFH Batch Master chemical mixing stations
DFH aluminium enclosures for spray drones (2-min video)
Industry related links
CASA article: Drones taking agriculture sky high
AAUS: the leading association for uncrewed systems (drones, ROVs, robots) in Aus.
DJI Agriculture main site
Blackberry control action groups: Weeds Australia, VIC , NSW
Cotton Australia main site
Chemical application licence authorities
NSW EPA (https://www.epa.nsw.gov.au/)
VIC EPA (https://www.epa.vic.gov.au)
QLD DESI (https://www.detsi.qld.gov.au)
SA EPA (https://www.epa.sa.gov.au/)
WA EPA (https://www.epa.wa.gov.au/)
NT EPA (https://ntepa.nt.gov.au/)
TAS EPA (https://epa.tas.gov.au/)



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Disclaimer: The information provided in this article is for general informational purposes only and does not constitute professional or legal advice. While efforts have been made to ensure the accuracy and relevance of the content, readers should consult with qualified experts or local authorities before making decisions related to agricultural drone use, regulations, or investments.



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