Because the chip is used by hundreds of different manufacturers, there is no "single" firmware file. A firmware intended for a "MXQ Pro" box will likely brick a "T95" box, even if both use the RK3128. Finding the correct firmware requires identifying your specific hardware revision.
Customizing the Rockchip RK3128 firmware can provide a range of benefits, from improving performance to adding new features. Some common customization options include:
Disclaimer: Flashing firmware carries inherent risks, including permanent hardware damage. This guide is for educational purposes. Ensure you have verified the correct hardware revisions for your specific device before proceeding.