: Stock ROMs for various WiFi versions (AP6330/SP6334Q) are available on Needrom and China Gadget Reviews Go to product viewer dialog for this item. : Android 9.0 ROM updates are hosted on AndroidPCtv .
Because "RK3318" refers to the processor and not a single brand, you must match the firmware to your specific model (e.g., Go to product viewer dialog for this item. download-rk3318-tvbox-androidpc-zip
(V11/V12): Recent firmware for Android 11 and Android 12 can be found on sites like AndroidPCtv and China Gadget Reviews : Stock ROMs for various WiFi versions (AP6330/SP6334Q)