Which protocol should I use in sending a bin file to EC20

IoT Modules LTE Standard Module
1

I am trying to update the firmware of MCU Over the Air. So I would like to know which protocol should I use to transfer the binary files.
Is there a Ymodem protocol in EC20?

2

Hello sir, thanks for your question
You can use FTP and HTTP(S) protocols to transfer binary files
In addition, EC20 does not support Ymodem protocol, please know, thank you.