Do not download random "Universal" updates from Facebook groups. The "S" model has specific hardware variants (e.g., S8, S2, or Pro). Installing the wrong MCU (Microcontroller Unit) update will permanently mute your sound or invert your backup camera.
Users typically report a reduction in "lag" and "stuttering" during general navigation, especially on older RK3188 (PX3) or PX5 processors. A-media Auto -1024x600 S- Software Update
This guide will walk you through the ritual. Perform it correctly, and your head unit will thank you with smoother performance, new features, and fewer random reboots. Do not download random "Universal" updates from Facebook
Do you have your or processor type (like RK3399 or AC8227L) handy so I can help you find the specific update file? A-media Auto -1024x600 S- Software Update