Typically locked to Android 4.4, 5.1, or 7.1. Upgrading beyond these versions usually requires custom ROMs due to hardware limitations.

Check the official website or contact the customer support of the brand you bought the unit from (e.g., Pumpkin, Eonon, Joying, Xtrons). Provide your MCU version to get the correct link.

The new firmware may have a different touch panel driver or default calibration.

: Always verify the parameter file ( parameter.txt ) before any OTA – mismatched CMDLINE or mtdparts will brick the device. For production, use signed update packages with Rockchip’s rksign tool.

Some Rkpx3 units, particularly those with damaged systems or those that won’t boot properly, require the use of Rockchip’s official flashing tools on a Windows PC.

Flashing the wrong Rkpx3 variant (e.g., mixing DDR3 vs DDR4 RAM, or different Wi-Fi chips) often results in a hard brick. No recovery without USB burning tool and short-pin method.

If your unit supports OTA (Over-the-Air) updates, this is the safest method. Connect to a stable network. Go to Settings > System > System Upgrade .

Your device has a different NAND layout (e.g., 8GB vs 16GB eMMC). Fix: Do not use generic update.img . Find a device-specific image that includes a matching parameter.txt file.

Tap and wait. The unit will reboot and begin the flash process. Method B: Recovery Mode Update (If System is Bootlooping)