M2RF Firmware

Firmware Update Instructions:

Follow these steps the very first time you use the adapter:

  1. Download the firmware:
    Download the firmware .zip file below. After unzipping, you’ll get a firmware file with a .BIN extension (e.g., Megadap M2RF Ver1.1.4.BIN).
  2. Connect the adapter to your computer:
    Use the original magnetic data cable to connect the M2RF adapter to your computer. A drive named “M2RF DFU” will appear on your computer.
  3. Copy the firmware file to the drive:
    Drag and drop (or copy and paste) the .BIN file into the “M2RF DFU” drive. The system will automatically complete the firmware installation within 5 seconds.

  4. Notes on the update process:
    Windows:
    Once installation is complete, the drive will automatically reload — this indicates the update was successful, and you can then manually eject the drive.

    Mac:
    During installation, Finder may show an error message such as “Finder cannot complete the operation…”. This message can be ignored — the firmware has already been written successfully. Simply eject the drive manually.

    Version verification:
    You can check the current firmware version in the README file on the drive, or via the “Lens Firmware” option in the camera menu.

Firmware:

Date Firmware Version Details Link
Aug 4 2026 M2RF Firmware 1.1.4
  1. Fixed an issue on some camera models where the adapter did not automatically reset (retract to infinity, its fully-retracted/lowest position) after the camera was powered off.
  2. Fixed a compatibility issue where, on the Canon C50 in video mode, the adapter’s motor would overshoot and fail to retract. (This issue does not affect other camera models.)
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