Set baudrate on EG915U


We’re currently trying to increase the modem’s baud rate in our application. The “AT+IPR=921600;&W” command responds OK but the “AT+IPR?” command still responds “+IPR: 115200”. This is the case even after rebooting.

Do you know if there is anything more to do to apply the change?

Best regards,


Some precision, the command worked from main UART connected to MCU but didn’t work from USB debug. In fact, we changed the baud rate to 921600b/s and now we can’t communicate through main UART caused by low hardware configuration between MCU and Modem…

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Ok that was an issue in my code.
Last question, has someone information about AUX UART on EG915u? I’m able to set higher baudrate for main uart but after that, i can’t communicate on AUX UART, at 921600 or 115200b/s.