: Some "Android 11" firmware for these budget sticks can be technically complex or even misleading (e.g., "fake" version numbers in some generic builds). It is often recommended to look for verified community builds or official manufacturer firmware from sources like AliExpress Wiki Guides to ensure hardware compatibility. step-by-step flashing guide for a specific device model, or are you interested in custom ROMs like LineageOS for this chipset? H96 MAX Plus RK3328 Firmware Android 11 - AliExpress

Go to Settings → Sound → Advanced → Select "HDMI" as output. If still no sound, install "SoundAbout" app and force audio routing.

Unofficial Lineage builds exist on XDA, but they are unstable. The GPU blobs (Mali-450 MP2) are not fully open source.