2. µFR Online & µFR Zero Online Series

uFR Zero Online – Unified Firmware Package System

µFR Zero Online – Unified Firmware Package System Introduction With the release of ESP32 firmware version 3.0.82, µFR Zero Online devices have adopted a unified firmware package system. This change simplifies firmware management by allowing developers to update both the ESP32 main controller and the NFC reader-writer in a single process. Instead of handling separate firmware updates, you now select from precompiled firmware packages that ensure both components always run mutually compatible versions. This article explains how the new system works, what package types are available, and how to resolve common issues when working with firmware packages. How Firmware Packages Work When you click “Check for Updates” in the device frontend: Individual firmware versions are no longer listed. Instead, you will see packages named in the format: Zero_Online_YYYYMMDD The date indicates when the package was created. A newer date corresponds to a newer firmware version. Once selected, the package automatically installs the correct versions of: The ESP32 main unit firmware The NFC reader firmware This ensures both parts of the device run on compatible builds. Package Variants Three types of firmware packages are available: Zero_Online_YYYYMMDD – the standard package for most devices. Zero_Online_Lite_YYYYMMDD – for Lite variants of µFR Zero...