Please click and check via our blog- How to upgrade the firmware.
https://www.viofo.com/en/blog/viofo-firmware-update-guide-step-by-step-b34.html
Please click and check via our blog- How to upgrade the firmware.
https://www.viofo.com/en/blog/viofo-firmware-update-guide-step-by-step-b34.html