How to extract Huawei firmware (update.app)

How to extract Huawei firmware / update.app



I. What you will need

• ActivePerl to execute the script that will extract update.app

• JoeyJiao's split_updata

• Winrar

• The Huawei update.app you want to extract

• Android ICS JB EXT4 imagefile unpacker

• A brain =)

II. Download and install ActivePerl



1. Download Active Perl
2. Install it:










Click Next , Next , Next











3. It's okay for ActivePerl




III. Install script to extract update.app




1. Create a new folder on your Desktop named "Huawei ROM extract"

2. Download this script in the folder "Huawei ROM extract"

3. Put your update.app in the same folder
NB: It have to be named update.app !!!

4. So you folder look like this:






5. Double click on split_updata.pl

6. This window will appear, just wait:






7. When it finish the window is closed automaticaly

8. In your folder this is a new folder named "output", open it

9. You will see some files like:




10. It's okay for extraction


III. Find system, boot and recovery files


1. Download my script HuaweiFinder in the folder "Huawei ROM extract"

2. Execute my script with a double click, youwill see this windows:





3. It's done, go into ouput folder and you will see some files:





boot.img is the kernel files
recovery.img is the recovery
system.img is the rom
others files are some others system files



III. Open and extract img



1. Now download Android ICS JB EXT4 imagefile unpacker
2. Extract it in the folder "Huawei ROM extract"
3. Open ext4_unpacker
4. Double clic on ext4_unpacker.exe





5. Click on this icon:
6. Go to the output folder and select system.img clic on "Open"





7. Now select all files, right clic and clic on "Extract"








8. You will see this:






9. It's okay the ROM is extracted where you have choosen !!


Special Thanks To : GalaxyUser (From XDA Developers)



I hope this guide will be helpful!! And don't forget to hit thanks button.

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