Source code for BX3100 firmware update tool

We have BX3100 module integrated into one of our embedded product designs and our plan is to add support for the module’s firmware update feature. We do not have access to the module’s UART directly, so using the firmware update tool as it is, is not an option. The process has to happen with a microcontroller sitting in-between to route the packets to the module’s UART.

Is it possible for Sierra Wireless to share their source code for the firmware update tool? I am interested in the sequence and how the update packet is transmitted - headers, size, length, crc?