Step 1 . Download dual_boot_installer zip file from Dingux download page.
→ For the purpose of this instruction, extract the contents within the zip file into a folder named “dual boot installer”.

Step 2 . Find out your LCD controller module
→ In your Dingoo's System setup → About screen, press the following on the D-pad: ↑ → ↓ ↑ → ↓
You should see LCD MODULE: ILI9325 or ILI9331
If you have something other than the two above then I don't know, Google about it or ask in Dingoo forums.

Step 3 . Connect Dingoo in USB boot mode
→ Hold B button on the Dingoo while connecting it to your computer via USB cable. Dingoo screen should be blank and Windows should find a new device: JZ4740 USB Boot Device
→ Install that device by going to Device Manager → Other devices → JZ4740 USB Boot Device.
Example:

→ Choose “Update Driver Software...”, then point to the dual boot installer folder that you extracted and install the driver.
Example:

Step 4 . Flash the Dingoo to be dualbootable
→ While still having the Dingoo plugged in “USB boot mode”, open the dual boot installer folder within Command Prompt. Here are two different ways to do this:
The easy way (for Vista and 7):
Hold down the SHIFT key while Right Clicking on the dual boot installer folder, then choose the option:
“Open command window here”

The manual way (for XP, Vista and 7):
Go to START → Run..., then type in: cmd
Then in Command Prompt window, type the following:
cd Desktop
cd dual boot installer (this is assuming the dual boot installer folder is located on your desktop)

Example:



→ Next, type in these two lines inside Command Prompt to flash your Dingoo: (you can copy and paste them into the Command Prompt using Right Click → Paste)
1^st line:

usbtool-win 1 hwinit.bin 0x80000000

Example:

2^nd line (type in only one of the line below that matches with your LCD controller module):

usbtool-win 1 zImage_dual_boot_installer_ILI9325 0x80600000
or
usbtool-win 1 zImage_dual_boot_installer_ILI9331 0x80600000

Example:



→ At this point you should see the dual boot info appearing on your Dingoo screen:

Read the agreement terms and follow the instructions on the screen to finish flashing your Dingoo.

Step 5 . Install Dingux into miniSD card
Connect your miniSD card to the computer, preferably a blank one and formatted as FAT32. I recommend to connect through a card reader, not through your Dingoo because the transfer speed is slower through it.

Download these two files from Dingux download page:
→ Dingux system
→ Dingux toolchain

First extract Dingux system, you should see: rootfs, zImage-ILI9325 and zImage-ILI9331
Which ever of the zImage file that end with your LCD controller module, rename that file to simply: zImage
Then copy both rootfs and zImage to your miniSD card.

Second extract Dingux toolchain. You'll need to extract it twice and you'll get a folder named “mipsel-linux-uclibc”. Copy everything within that folder to your miniSD card.

*You cannot use Dingux yet until you install a menu system to it, such as dmenu or dinguXMB (see Step 6).
*If you need a free software to extract the two files above, try 7-Zip or PeaZip.

Step 6 . Optional: Get free games and boot into Dingux.
→ To get a collection free games for Dingux, download the “Dingoo Local Pack” by toddler, which will have a menu system included.

→ To boot into Dingux, insert the miniSD card with Dingux in it into your Dingoo. Then turn on the Dingoo and immediately hold the Select button until you see Tux:


*If you hold Select and the bootloader cannot find Dingux then the boot screen will freeze and you'll have to reset Dingoo via the reset hole.