Rockchip Customization Tool

Rockchip Firmware Format¶

Rockchip Android Tool 2.1
Rockchip Customization Tool Minecraft
Rockchip Firmware Tool

The rockchip firmware release_update.img, contains the boot loader loader.img and the real firmware data update.img:

release_update.img

update.img is packed with multiple image files, described by a control file named package-file. A typical package-file is:

package-file: packing description of update.img, which is also included by update.img.
Image/MiniLoaderAll.bin: The first bootloader loaded by cpu rom code.
Image/parameter.txt: Parameter file where you can set the kernel boot parameters and partition layout.
Image/trust.img: The Arm Trusted Image.
Image/misc.img: misc partition image, used to control boot mode of Android.
Image/kernel.img: Android kernel image.
Image/resource.img: Resource image with boot logo and kernel device tree blob.
Image/boot.img: Android initramfs, a root filesystem loaded in normal boot, contains important initialization and services description.
Image/recovery.img: Recovery mode image.
Image/system.img: Android system partition image.

Unpacking is extracting update.img from release_update.img, and then unpacking all the image files inside.

RK3066/2918 Image Unpack/Repack Tool (Thanks Wendal from Slatedroid!): Download. NOTE: This download might get flagged as dangerous by your browser. All credit goes to Wendal from Slatedroid for this tool (I only made a few small changes): Link to Wendal's SLD Profile Page; Jelly Bean Root Package: Download 'su' binary (goes in. How-to-install-cwm-recovery-rockchip 4/22 Downloaded from buylocal.wickedlocal.com on September 28, 2021 by guest APK. Installing Custom Rom. How to recover your deleted Whatsapp messages. How to backup Android devices personal data. How to root the Samsung GT-S5310 using Odin flash tool: 21. How to root the Samsung Galaxy A7.

While repacking, it is the inverse process. It synthesizes the image files described by the package-file, into update.img, which will be further packed together with the bootloader to create the final release_update.img.

Unpacking is extracting update.img from releaseupdate.img, and then unpacking all the image files inside. While repacking, it is the inverse process. It synthesizes the image files described by the package-file, into update.img, which will be further packed together with the bootloader to create the final releaseupdate.img.
Nov 19, 2013 Rockchip provides 2 tools to update the flash: RkBatchTool – Used to upgrade firmware with a single file RkAndroidTool – Used to flash the NAND flash with image corresponding to particular partition, e.g. Kernel.img, boot.img.
RK3066/2918 Image Unpack/Repack Tool (Thanks Wendal from Slatedroid!): Download. NOTE: This download might get flagged as dangerous by your browser. All credit goes to Wendal from Slatedroid for this tool (I only made a few small changes): Link to Wendal's SLD Profile Page; Jelly Bean Root Package: Download 'su' binary (goes in.

Installation of Tools¶

Unpacking Rockchip Firmware¶

Unpacking release_update.img:
Unpacking update.img:
Check the file tree in the update directory:

Packing Rockchip Firmware¶

First of all, make sure system partition in parameter.txt file is larger enough to hold system.img. You can reference Parameter file format to understand the partition layout.

For example, in the line prefixed with “CMDLINE” in parameter.txt, you will find the description of system partition similiar to the following content:

The heximal string before the “@” is the partiton size in sectors (1 sector = 512 bytes here), therefore the size of the system partition is:

To create release_update_new.img:

Customization¶

Rockchip Android Tool 2.1

Customizing system.img¶

system.img is an ext4 file system format image file which can be mounted directly to the system for modification:

Note that the free space of system.img is almost 0. If you need to expand the image file, do adjust the partition layout in parameter.txt accordingly.

The following is an example of how to increase the size of the image file by 128MB.

Rockchip Customization Tool Minecraft

Before expanding, make sure system.img is not mounted by running:

Rockchip Firmware Tool

Resize the image file:

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