Focused on firmware reliability, this developer enhanced progress reporting for Bluetooth Mesh firmware distribution in Zephyr-based projects. Working in C within the zephyrproject-rtos/zephyr and nrfconnect/sdk-zephyr repositories, they addressed inaccuracies in 0-100% progress displays by refining calculation logic and removing erroneous divisions. These changes ensured that both the Bluetooth Mesh shell and DFU CLI outputs now consistently reflect true transfer progress, reducing operator confusion and improving diagnostic clarity during firmware updates. Their work demonstrated attention to embedded systems detail, with documentation-quality commits that improved traceability and maintained consistency across multiple tools and repositories in the Bluetooth development ecosystem.