Flashing Notes

Please read the following carefully！！！

Firmware Format

There are only one firmware file formats:

RK Firmware

RK Firmware

, is packed in Rockchip's proprietary format, which is flashed to the
eMMC via Rockchip's [upgrade_tool] (Linux) or [AndroidTool] (Windows).
It is Rockchip's traditional packing format, commonly used in Rockchip
Android firmware.

RK Firmware

 of Android can also be flashed into SD card using [SD Firmware Tool].

if you want to know more about the firmware formats or Partition
Image, you can refer to

Formats

Download & Flash

Here's the available OS list of firmware:

Android 8.1

Ubuntu 18.04

Then choose the flashing tool according to your host PC's OS:

To flash to the eMMC:  GUI:  [AndroidTool] (Windows)  CLI:
[upgrade_tool] (Linux)

Tools download:  upgrade_tool  Android_tool

Firmware  <font color=#ff0000>Official firmware:</font> The Linux
firmware provided by the official cloud disk,This includes firmware
such as Ubuntu,Buildroot,Debian.the GPT firmware compiled with the new
Linux SDK for GPT.  <font color=#ff0000>DIY firmware:</font>The
firmware compiled according to Compile Linux Firmware is GPT Firmware

Flash Firmware of Android Note

Please read the following table carefully and then upgrade:


Note:Loader mode is preferred when both Loader mode and Maskrom mode
can burn firmware.

Operating hardware: MaskRom（In general, the first method is
recommended）