This Russian forum is the "holy grail" for RK322x development. Use Google Chrome's translate feature. It contains custom ROMs (Android 7.1, 9.0, and even Android TV ports) that often run better than the stock software. FreakTab Forums
Below is a guide to the most reliable sources for firmware and custom operating systems for these devices. 1. Stock Android Firmware
This Russian forum is the "holy grail" for RK322x development. Use Google Chrome's translate feature. It contains custom ROMs (Android 7.1, 9.0, and even Android TV ports) that often run better than the stock software. FreakTab Forums
Below is a guide to the most reliable sources for firmware and custom operating systems for these devices. 1. Stock Android Firmware android rk322x box firmware link