How to upgrade COFDM relay or network port transceiver module?

Prepare a formatted FAT32 Format Micro SD card.

2. Ask we offer you the correct version upgrade firmware.

https://drive.google.com/file/d/1BztD-7mMy1N0WT0gfG2-fTO-7WtKTte9/view?usp=sharing

3. Unzip the “update_image_xx_yy.zip” file and copy it to the root directory of the Micro SD card. Be careful to keep the directory structure unchanged (there is a flash folder in the root directory of the Micro SD card, which contains app and rootfs folders):

How to upgrade COFDM relay or network port transceiver module 1

4. Insert the Micro SD card into board, power on and wait for the red light on the board to flash, indicating that the upgrade is successful:

How to upgrade COFDM relay or network port transceiver module 2

Note:

Normally, the update will be completed within 30 seconds after power-on (the red light flashes). If the red light does not flash for a long time after power-on, please check the connection of the Micro SD and try again.

Need details of COFDM relay or network port transceiver module? Please check the below link. Vcan1816