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[GUIDE] Noobs guide to extract Galaxy S3 stock firmware(.img) !!

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By balamu96m, Senior Member on 22nd May 2012, 11:12 AM
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Hi all !!
We now have the stock I9300XXALE8 firmware of Samsung Galaxy S III.
Download here - thread
So, if you had downloaded it and wanted to view stock the apps & something like that, you need to extract the system.img.

Pre-requisites:
* 7-zip

PROCEDURE:
Quote:

Quote:

--When you extract the ROM .zip , you'll find 3 .md5 files. With help of 7-zip, extract each of the .md5 file. When extracting the .md5 file, 7-zip may show some error, but you can neglect that and continue extracting.

Quote:

--When you have completed extracting all of them, you'll find many files including many .img files. For Apps you need to extract system.img. Unlike normal nandroid backup's system.img file which in yaffs, this stock one in different. So, unyaffs tool can't unpack the system.img

Quote:

--To extract the system.img, download this tool: sgs2toext4 (created by drphrozen). On extracting it you'll have sgs2toext4.jar file.

Quote:

--Open a command window and set the directory where you have .jar file.

Quote:

--Now type sgs2toext4.jar and press enter.

Quote:

--The .jar will run in a new window & will ask you to drag & drop the system.img file there. Do the same and wait till the process completes.

Quote:

--When the process completes, you'll find a file named system.ext4.img in the same folder where you had the system.img file.

Quote:

--Now download Diskinternals Linux Reader and install it. Then open the program --->> Drives --> Mount Image --> select system.ext4.img > Mount

Quote:

--It will show you all its contents. Now select all the things displayed --> right click --> save and select a folder to save them. There you'll find the extracted system.img !!!

You can try extracting cache,data,boot.img with the same method.

If you want to de-odex the rom, try using AutoDeoTool(created by xavierjohn22 - thread)



Credits: (don't forget to thank them!)
efrant - post's link
drphrozen - post's link
---Information gathered from this post & things in blue text under How to Flash).
Try n reply !!

Hit THANKS if you find this useful !!
The Following 66 Users Say Thank You to balamu96m For This Useful Post: [ View ] Gift balamu96m Ad-Free
 
 
22nd May 2012, 11:20 AM |#2  
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Thanks for your contribution .
22nd May 2012, 03:07 PM |#3  
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is this one among the various forums?
http://forum.xda-developers.com/show....php?t=1662184
22nd May 2012, 04:34 PM |#4  
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Quote:
Originally Posted by bala_gamer

is this one among the various forums?
http://forum.xda-developers.com/show....php?t=1662184

Not at all !!

This thread (especially the How to Flash in blue text): http://forum.xda-developers.com/show...37&postcount=1
22nd May 2012, 05:40 PM |#5  
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Thank You Very Much ,, It was very useful for me
10th June 2012, 02:33 PM |#6  
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Guys, here's a simple tool to extract cache.img file from any Samsung rom without conversions and mounting!

http://forum.xda-developers.com/show...1#post27219721

Enjoy!

PS: OP, please update first post!
29th August 2012, 04:11 PM |#7  
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really helpful..thanks!
16th September 2012, 03:59 AM |#8  
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Cool thank for your guide
hello i follow your guide i done with unpack and i can edit it, but m a new and i wonder if i can make it back to tar or md5 for odin flash thank you guys...for your reply
16th September 2012, 07:19 AM |#9  
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Quote:
Originally Posted by iihito702

hello i follow your guide i done with unpack and i can edit it, but m a new and i wonder if i can make it back to tar or md5 for odin flash thank you guys...for your reply

I dont have any idea.........try creating ashable zip.....it will be easy!

Sent from my GT-I9300 using xda app-developers app
19th October 2012, 11:08 PM |#10  
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Thanks for the guide -- it helped me out.
9th December 2012, 03:42 PM |#11  
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guys not working for me, nothing happens in cmd window after typing sgs2toext4.jar
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extract, galaxy s3, guide, stock rom, unpacking

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