Flashing Steps on Windows Platform

Hardware Connection

Use a Type-C data cable to connect the USB port of the PC to the Type-C port of the development board.

Driver Download and Installation

Before using the flashing tool, Windows users need to confirm whether the driver has been installed.

USB Driver Download and Installation

Download the USB driver (you can click here to download)

Download the sunrise5_winusb.zip compressed package and proceed with the driver installation. The steps are as follows:

1. Unzip sunrise5_winusb.zip.
2. Navigate to the sunrise5_winusb folder, right-click on install_driver.bat, and select "Run as administrator."

Verify Driver Installation

1. In the development board's uboot command line, enter fastboot 0 to put the board into fastboot mode:

   Hit any key to stop autoboot:  0
   Hobot$
   Hobot$
   Hobot$ fastboot 0

2. After successfully installing the driver, the Device Manager will show an Android Device, as shown below:

   

   If the driver installation is unsuccessful, the Device Manager will indicate an unknown device named USB download gadget, as shown below:

   

System Flashing

Full Image Flashing

DFU-Fastboot Flashing

Note

• Currently, the SW3 switch must be set to the ↑ position to boot from the onboard eMMC. Booting from an M.2 NVMe SSD is not supported at this time.
• The Xburn tool on Windows PC can only be used after successfully installing the driver. Please ensure the driver is installed successfully before use.

Put the RDK S100 into DFU Boot Mode

1. Set the SW1 switch to ↑ and turn off the power.
2. Set the SW2 switch to ↑ to enter Download mode.
3. Set the SW1 switch to ▽ and turn on the power.
4. If the DOWNLOAD LED lights up, the board is in DFU mode. Otherwise, press K1 to reset the system.

Flashing with Xburn

Configuration method is as follows:

• Select Product Model: RDKS100

• Connection Mode: usb, Download Mode: DFU+Fastboot

• Storage Medium: emmc, Firmware Type: secure

• Image Directory: Click Browse and select the product folder containing the firmware

  

• Click Start Upgrade, power on the device, and wait for the upgrade to complete

  

• After the upgrade is complete, turn off the power, flip the flashing switch downward (to exit DFU mode), and then power on again.

Fastboot Flashing

Note

• Fastboot uses the normal boot mode.
• Ensure the system U-boot starts normally and enters Fastboot.

Put the RDK S100 into Fastboot Mode

There are two ways to enter Fastboot:

• Enter Fastboot automatically: After the system starts, an ADB device is generated. Xburn detects the ADB device and sends a command to the board to enter Fastboot.
• Enter Fastboot manually: After the board starts and enters uboot, enter fastboot 0 to enter Fastboot.

Flashing with Xburn in Fastboot Mode

Configuration method is as follows:

• Select Product Model: RDKS100

• Connection Mode: usb, Download Mode: Fastboot

• Storage Medium: emmc, Type: secure

• Image Directory: Click Browse and select the product folder containing the firmware

  

• Click Start Upgrade, the device will enter Fastboot mode and wait for the upgrade to complete

• After the upgrade is complete, power on again.

Flashing Specific Partitions

Partition Flashing Description

The RDK S100 supports flashing specific partitions via Xburn. The supported partitions are as follows:

Partition	Storage Medium	Firmware Content	Image
miniboot_flash	Norflash	Basic boot images on Norflash, including images for system components like HSM/MCU0 etc.	img_packages/disk/miniboot_flash.img
miniboot_emmc	eMMC	Basic boot images on eMMC, including images for system components like BL31/Uboot etc.	img_packages/disk/miniboot_emmc.img
emmc	eMMC	Full eMMC image, already includes miniboot_emmc	img_packages/disk/emmc_disk.img

Flashing Specific Partitions with Xburn

Example: Flashing miniboot_flash and miniboot_emmc specifically.

Configuration method is as follows:

• Select Product Model: RDKS100

• Connection Mode: usb, Download Mode: DFU+Fastboot

• Storage Medium: emmc, Type: secure

• Image Directory: Click Browse and select the product folder containing the firmware

• Advanced Configuration: Check Flash specific partitions, check miniboot_flash and miniboot_emmc

  

• Click Start Upgrade, power on the device, and wait for the upgrade to complete

Backing Up Specific Partitions

Backup Partition Description

The RDK S100 supports backing up specific partitions via Xburn. The supported backup partitions are as follows:

Partition	Storage Medium	Firmware Content	Backup Image Path
miniboot_flash	Norflash	Full Norflash image	img_packages/disk/miniboot_flash_backup.img
emmc	eMMC	Full eMMC image	img_packages/disk/emmc_disk_backup.img

Backing Up Specific Partitions with Xburn

Example: Backing up miniboot_flash specifically.

Configuration method is as follows:

• Select Product Model: RDKS100

• Connection Mode: usb, Download Mode: DFU+Fastboot

• Storage Medium: emmc, Type: secure

• Image Directory: Click Browse and select the product folder where the backup image should be saved

• Advanced Configuration: Check Backup specific partitions, check miniboot_flash

  

• Click Start Upgrade, power on the device, and wait for the operation to complete

• After the operation is complete, open img_packages/disk/ and check for the backup image file miniboot_flash_backup.img

Note

Backing up the entire storage medium data takes a long time. Please wait patiently for the backup to finish.

Starting the System

First, ensure the development board is powered off. Connect the development board to the monitor using an HDMI cable. Finally, power on the development board.

During the first system startup, default environment configuration will be performed. This process lasts about 45 seconds. After the configuration is complete, the Ubuntu system desktop will be displayed on the monitor.

Development Board Indicator Description

• Green Indicator: Illuminated indicates normal hardware power-on.

If there is no display output for a long time after powering on (more than 2 minutes), it indicates an abnormal startup. Debugging via a serial cable is required to check the board's status.

After the Ubuntu Desktop version system has fully started, the system desktop will be output to the monitor via the Display interface, as shown below: