# PX4 modal_io: esc_status not updating

Source: https://forum.modalai.com/topic/2726/px4-modal_io-esc_status-not-updating
Category: ESCs, Sensors and Accessories (https://forum.modalai.com/category/15/escs-sensors-and-accessories)
Tags: esc
Posted: 2023-10-05 19:37:46 UTC by 0x45
Replies: 1 · Views: 474

## 0x45 · 2023-10-05 19:37:46 UTC

Hi,

The below is my setup:
    Model - 4in1 micro esc m0129
    Firmware - 39, hash fb6fd95
    Bootloader - 184, hash 10bf24c8

modal_io.cpp 
    parse_response()
        qc_esc_packet_process_char() - returns ESC_ERROR_BAD_HEADER

I was wondering if there is a interface control document available for devs? Also has the byte communication changed in this version of ESC firmware?

Thanks!

## Reply by 0x45 · 2023-10-05 22:55:20 UTC

Update:

It was an issue on my end regarding the baud-rate configuration.

All is good.