Rk3326 Firmware -

Improved power management and sleep-mode stability. How to Flash RK3326 Firmware: Step-by-Step

Using Rockchip tools like rkdeveloptool to backup only the first 32MB of flash may result in invalid data beyond that point due to a uboot bug. rk3326 firmware

Because the RK3326 is a chip, not a brand, you must identify the specific hardware wrapper around it. Improved power management and sleep-mode stability