1. Using AndroidToool.

New released images already included AndroidTool（or RKDevTool_Release）、USB Driver（DriverAssitant_vxxx.zip）and SDDisk Tool( SDDiskTool_vxxx.zip).

If you get older images, please Download AndroidTool_vxxx.rar and SDDiskTool_vxxx.zip first.

RK3399 Android 7.1：

RK3399 Android 10.0

RK3399 Debian 9.x ：

RK3399 Debian 10.x ：

Step1 請先準備一條 USB 線材和 Debug Cable

USB 線材

Debug Cable

Step2 Double click DriverInstall.

Step3 Enter into MASKROM mode .

There are two ways to enter MASKROM .

1. Hardware way to enter MASKROM and download

a ) Connect jumper cap J4 to Pin1 - Pin2(set USB-otg mode).

Note：Default jumper cap J4 Connect Pin2-Pin3 (Set USB-host mode)

b ) Connect one part of the USB cable to the USB port below and the other end to the computer.

c ) Jump the J1 jumper cap to Pin1-Pin2, then switch on the 12V power supply.

d ) Then the burning tool will appear: a MASKROM word found.

Note：Suspend or shut down the virtual machine during this process; otherwise, the pop-up information may affect the burning results.

e ) Jump the J1 jumper cap back to Pin2-Pin3 and click "Execute"

f ) Just wait patiently for the burning to finish.

2. Software way to enter MASKROM and download

When the device boot up to android or debian, you can use ADB or Debug console, send command "reboot loader" .

Or Press "ctrl + c" key when booting into uboot, until get the following information on debug console :

Android 7.1：

Hit any key to stop autoboot: 0
rkboot # <INTERRUPT>
rkboot # loader

Debian 10.x：

Hit any key to stop autoboot: 0
rkboot # <INTERRUPT>
rkboot # rbrom

Click "Advantech Function" , then "Enter MASHROM" button to enter MASHROM mode .

Select the image path.

Finish the update

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