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How to flash OS for RK3568 system

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  • ドキュメント番号

    2023090602

  • カテゴリー

    ソフトウェアOS

  • 改訂

    A3

  • 更新日

    2023-09-20

モデル名

CCD-07WR2 CCD-10WR2 OFT-07WR2 OFT-10WR2 OFT-21WR2

目的

There are steps by steps to update image to RK3568 device.

Preparing:

Driver: DriverAssitant_v5.1.1
Flash tool: RKDevTool_Release_v2.84 (v2.80 or newer)
Image: update.img
Model: RK-3568 Product: OFT-XXWR2 / CCD-XXWR2
Cable: type A to type A USB cable, Control Bar cable (part number: E170X210020R, E1971120103R)

  • Method-1: Switching OS from Android to Android / non-Android: It only needs to use USB cable.
  • Method-2: Switching OS from non-Android to Android / non-Android: It needs to use USB cable and control bar cable (or short JTB1 pin2-3).

Driver Installation

1. Install RK Driver Assistant v5.1.1 in your computer.
Execute DriverInstall.exe and select “Install Driver”.

Method-1: Switching OS from Android to Android / non-Android

If OFT/CCD is installed Android image already, please follow below steps.
1. Connect OFT to your computer with USB cable and power on to boot to Android. (Note: Need to connect the USB port nearby Lan port.)

2. Press “Build number” 7 times and Android would set to develop mode.
Settings -> About tablet -> Build number

3. Settings > System > Advanced > Developer options > Set “USB client” mode and “USB debugging” to enable, then power down.

4. Execute “RKDevTool.exe” in “AndroidTool\RKDevTool_Release_v2.84” on your PC.

5. Select Upgrade Firmware

6. Select “Firmware” and select “update.img” which is image you want to flash.

7. Select “Switch” to set the OFT to flash mode.
When press “Switch”, the OFT display would disable after 5~10 seconds.

8. Then press “Upgrade” to flash image.

9. After flash finish, OFT would power on and boot to OS automatically.

Method-2: Switching OS from non-Android to Android / non-Android

If OFT don’t install Android image or OFT is installed other OS, need to flash image with touch pad.
1. Connect OFT and computer via USB cable.
2. Install driver to computer. (Please refer the Driver Installation page)
3. Execute “RKDevTool.exe” in “AndroidTool\RKDevTool_Release_v2.84”.
It would show “No Device Found”.

4. Keep hold “+” and power on. (After the Power LED turns from red to green, it has entered the programming mode then you can release + key)

  • Notice: If there is no control cable in your side, please short circuit pin2 & pin3 as below pictures and then power on.

5. When RKDevTool.exe detect OFT, RKDevTool.exe would change to “Found One LOADER Device”.

6. Select Upgrade Firmware

7. Select “Firmware” and select “update.img” which is image you want to flash.

8. Press “Upgrade” to flash image.

9. After flash finish, OFT would power on and boot to OS automatically.