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[Tut] Unroot the Galaxy SIII (for stock updates/warranty)

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Hi All,

I put together a tutorial on how to unroot the galaxy s3 and get it back to stock (for warranty or to get stock updates)

Things you will need...

1. PC Odin
(Check Attachment)

2. Your Firmware
Sammobile.com

Video Instructions



Written Instructions

1. Backup what you need to

2. Install ADB Drivers (Samsung Kies)

3. Put your phone in download mode - Hold Vol Dn + Power + Home for 10 seconds then press Vol Up to continue

4. Check if Custom Binary Download is NO, if Yes then proceed to step 6 if it says 1 count or something like that then go to step 5

5. Follow the thread below to reset the binary counter (or check my video tutorial to do so...) once reset get back to download mode
http://forum.xda-developers.com/show....php?t=1494114
(Thanks to Chainfire)

6. Go to SamMobile.com and download the latest firmware for GT-I9300 (Galaxy S3)
http://www.sammobile.com/firmware/?p...0&r=-1#modelsa

7. The downloaded firmware would be a zip file right click and extract it to get a .tar.md5 file

8. Connect the phone to the pc via usb cable

9. Run Extract the zip file that you downloaded from the attachment below and run Odin3 1.85. exe

10. Make sure that only Auto Reboot and F.Reset Time are checked and click on PDA, select the .tar.md5 file that we just extracted

11. Now hit Start

12. Once the phone is up go to Settings -> About Device -> Status, check if the device status says NORMAL... if it does, then the device is unrooted if it still says MODIFIED continue...

13. Reboot into Android Recovery by holding Vol UP + Home + Power till you see Samsung Galaxy S3 displayed on screen...

14. Do a factory wipe and wipe cache then reboot

15. Check Download mode again, if 0 or NO you are done and the S3 can be sent in for warranty if it still shows 1 go to step 16.

16. If the counter stays at 1 it means u were on a non stock kernel... what u need to do now is root (since u have just unrooted you are now on a stock kernel) use triangle away and then flash the stock rom again.... the counter will then be 0 but status might show modified, in that case do a factory wipe and youd be back to a totally stock s3

Hope this guide helps someone

Ash aka Cursed4Eva
Attached Files
File Type: zip Odin3-v1.85.zip - [Click for QR Code] (198.4 KB, 30717 views)
Last edited by ashwin123; 14th May 2013 at 03:04 AM.
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22nd June 2012, 12:57 AM |#2  
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Question
Is there a way to keep all my files on the phone?
Specifically when I get my SGS3, I want to keep/transfer my data files of my games from my old X10, you think it'll be possible?
24th June 2012, 11:10 AM |#3  
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OK, just to make sure I understand everything:

- Step 2 means "Install Kies"

- I will be able to update from Kies and whatnot after the "unroot" is over.

- Any SD card files will still be accessible, as long as they're official (say, an app loaded onto the SD card).

Thanks for your help in advance.
2nd July 2012, 03:54 PM |#4  
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My system shows NORMAL yet Titanium backup still works just fine????????
7th September 2012, 03:36 PM |#5  
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custom rom
Does this work if i come from a custom rom galaxy s3? or i should first restore phone to rooted stock rom then follow the steps?
25th September 2012, 03:50 PM |#6  
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Quote:
Originally Posted by zaid10

Does this work if i come from a custom rom galaxy s3? or i should first restore phone to rooted stock rom then follow the steps?

This will work no matter what's on your phone.

It's so easy.

1. Download your firmware and extract it to your Odin folder so you have your .tar.md5 file, flash it to your phone while your phone is in download mode using Odin. Use it as the PDA in Odin. Wait 5-15 minutes. Go to recovery and wipe everything. Done.

I'm doing it now
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28th September 2012, 11:50 AM |#7  
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Hey guys,

i have cm10 on my i9300 and i'd like to revert back to stock rom, unrooting is not needed, nor is triangle away needed. just want to try stock JB.
Problem is that i have Linux on my machines. I flashed my i9300 using cfroot and heimdall. can something similar be done with stock rom? i got the rom from sammobile.com.
Should i search for windows machine or?
Thanks in advance!

Edit: after untaring that .tar.md5 file i can see -rwxr--r-- root/root 1101420964 2012-08-21 10:44 system.img
-rwxr--r-- root/root 4964608 2012-08-21 10:44 boot.img
-rwxr--r-- root/root 52855268 2012-08-21 13:04 cache.img
-rwxr--r-- root/root 109941124 2012-08-21 13:04 hidden.img
-rwxr--r-- root/root 5652736 2012-08-21 10:44 recovery.img
-rwxr--r-- root/root 12583168 2012-08-27 08:43 modem.bin

should i try with heimdall -- cache cache.img --modem modem.bin --hidden hidden.img --recovery recovery.img

what to use for boot?
--primary-boot or?
anyone tried that?
Last edited by matijaz; 28th September 2012 at 11:58 AM.
29th September 2012, 01:34 AM |#8  
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wrong forum {deleted)
Last edited by Silversun634; 29th September 2012 at 01:39 AM.
29th September 2012, 07:32 AM |#9  
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How do you check which country your handset is from? Thanks.
2nd October 2012, 07:57 PM |#10  
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Yeah, I have a similar query. Which firmware would I need? Even after selecting my country and network I see a massive list of firmwares for the phone on SamMobile.
3rd October 2012, 06:30 PM |#11  
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Take the latest one according to the date...all will work fine.....
Just in case if you will take the old one, you will need to do OTA Update or from kies to update the latest one
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galaxy s3, i9300, stock, unroot, warranty
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