Rock/SD upgrading

Windows

Rockchip provides the sd image tool.

Note: Only android update.img is supported now. More work needs to be done for linux update.img

Preparation

a sdcard (4G at least)
a sdcard reader
Windows System ( the tool to make upgrade disk is exe format)

Get the image for upgrading

The Image is just modified for upgrading android from sdcard. you can download from here 
http://dl.radxa.com/rock/images/android/Upgrade_android_from_sdcard/radxa_rock_android_upgrade_from_sdcard_140314_update.zip
and then unzip it.

Make the Upgrade SD card

Download the tool to make upgrade disk and unzip it: http://dl.radxa.com/rock/tools/windows/SD_Firmware_Tool.zip
Insert the reader to pc and insert the sdcard to reader
Find SD_Fireware_Tool.exe under SD_Fireware_Tool and click it. See PIC_1
Select the insert sdcard under "Choose removable disk" Item. See PIC_1
Select "Upgrade Fireware" (Note:Select only this item). See PIC_1
Click "Firmware" button to choose the image just download and unzip.See PIC_1
Click "Create" to begin. when complete, there will be a dialog to tell you success

PIC_1

Upgrade with SD card on RR

 1. Power off the RR
 2. Insert the sdcard
 3. Power on the RR, then the process start,you will see the ui like PIC_2. 
 4. Wait for the process complete. this process will take serveral minutes.when upgrade sucessfully. you will see the result like PIC_3
 5. Power off the RR and remove the sdcard.
 6. Power on the RR. the system is the new version.

PIC_2

PIC_3

Linux

on Linux, write sdboot-header.img into beginning of your micro SD card. (you'll lose all data on it)

then, your SD card should have a 1GB FAT partition. format it, mount it, then put rksdfw.tag sd_boot_config.config, and Radxa's update image for SD card as "sdupdate.img" into root directory of SD card.

Download the binaries from http://files.androtab.info/radxa/sdboot.tgz, and unzip it.

   dd if=sdboot-header.img of=/dev/sdX bs=1M conv=fsync
   mkfs.vfat /dev/sdX1
   mount /dev/sdX1 /mnt
   cp rksdfw.tag sd_boot_config.config /mnt/
   cp path/to/radxa_update.img /mnt/sdupdate.img
   umount /mnt