While the primary focus is often Linux (Armbian), developer resources for building or downloading Android 11 SDKs for Firefly boards are available on their official wiki Poison Android TV (Custom):
When the factory lights dimmed, the little RK3328 board woke. Its silicon heart hummed with factory-default code: a conservative kernel, patched libraries, and a neat, official Android 11 image stamped "v3.0 — Public Release." For months it had been an appliance: running media centers and kiosks, obedient and predictable. But on one rainy night an unexpected OTA packet slipped through the secure shell of the update server — a fragmented payload that carried more than a security patch. rk3328 firmware android 11 link
Recently, the RK3328 firmware has been updated to support Android 11, the latest version of Google's mobile operating system. This update brings a host of new features, improvements, and security patches to devices powered by the RK3328 SoC. While the primary focus is often Linux (Armbian),
Run the Rockchip Driver Assistant on your PC. Recently, the RK3328 firmware has been updated to
your device has 2GB+ RAM and you found a firmware link that specifically lists your WiFi chip by name.