Regarding Firmware update for EC200U with UART

Hi,
This is a query regarding the possibility for firmware update through UART. I wanted to develop a firmware update through UART instead of using normal USB connectors for flashing the new python scripts and .pac/.bin files. Please share any procedure or sample document if available, that can update the firmware through UART. I already know about OTA but just wanted to know the procedure through normal UART.

Dear customer

the EC200U only supports firmware downloading via USB.