If you are looking to "repack" or flash firmware for a device using an SD card, follow this general guide:

"Repack" files are rarely hosted on official manufacturer sites. They are usually found on file-sharing sites (Mega, Mediafire), forums (XDA, specialized dashcam forums), or Telegram channels.

Are you trying to that isn't working, or

Most mass production tools require high-level system access to interact directly with the hardware controller.

Updating or repacking the firmware on your MXTronics device’s SD card can seem intimidating, but it’s a manageable process with the right guidance. By understanding the need for updates, knowing where to find them, and carefully following the update process, you can ensure your device continues to perform optimally. Whether you’re looking to fix issues, enhance performance, or add features, taking control of your device’s firmware can significantly enhance your user experience. Always proceed with caution and refer to professional help if you’re unsure about any steps in the process.

Use the official tool from the SD Association .