Accidentally uploaded WIZISP firmware instead of ConfigTool

With the S2E Configuration Tool I uploaded the wrong firmware to the small version of WIZ750SR.

Now the ethernet is not connecting like it did before, and there is no USB input so I can reflash it easily.
What are my options?

Hi @pnn16004 ,

You can recover WIZ750SR firmware using ISP Tool.
In this case, you should use the entire firmware file. (Boot+App)

To use Boot mode(ISP mode), please refer to the following link (‘3. Does it work in ISP mode’ part)

Guide to recover WIZ750SR: