The v1.0.4 update is often distributed via developer repositories or specialized community links: Source Locations
For sending AT commands to cellular modules or IoT devices, use established tools like 1oT Terminal or manufacturer-specific software like u-blox SARA-R4 manuals . write at command station v1.0.4 download
AT commands 2025: Guide cellular for IoT devices - Onomondo.com The v1