Rk3326 Firmware -

Better power management during sleep modes.

Use a reliable tool like BalenaEtcher or Rufus to write the image to a high-quality microSD card (SanDisk or Samsung are recommended to avoid corruption). rk3326 firmware

Always back up your original "stock" firmware (the SD card that came with the device) before flashing anything new. The generic cards provided by manufacturers are prone to failure, but having a digital backup of the original files can save you from a "brick" scenario. Better power management during sleep modes