A new Android 4.3 update build I9300XXUGNA5 has been officially roll out on Samsung Galaxy S3 GT-I9300. The latter is available in Europe and Asia. This update might have new improvements and enhancements added. This firmware posses a much higher changes but still got the same modem or baseband version to the previous 4.3 build I9300XXUGMK6. For those who might give it a try you may grab the stock I9300XXUGNA5 from below source.
Here’s the comparison between the two firmware build numbers I9300XXUGNA5 and the I9300XXUGMK6.
Build number: I9300XXUGNA5
Kernel version: 3.0.31-2429075
Build date: Jan 16 2014
Build Number: I9300XXUGMK6
Kernel version: 3.0.31-2168382
Build date: Nov 28 2013
The UGNA5 4.3 update has seen now only available in Switzerland, other countries may or may not seen this update this coming days. You can simply get this update through Samsung Kies if already available in your regions. Below is the original firmware bundle I9300XXUGNA5 for advanced users that may now want to update manually.
Install I9300XXUGNA5 4.3 Update on Galaxy S3 GT-I9300
Disclaimer: This guide is for advanced users only, this is risky for beginners. We shall not be held responsible if anything happens to your device while using this guide. Proceed at your own risk!
What is a Stock ROM?
Stock ROMs are the firmware that has been released from Samsung Kies official firmwareserver. These are being pulled from Kies by an Android firmware experts and carefully re-bundled it to make it flashable by using Odin flasher tool, via CWM and some prepared tool like chainfires’ Mobile Odin. This guide here tackles a Odin flashable stock ROM only, you might also see other methods like flashing via CWM and Mobile Odin (whuch is to be added soon).
Stock ROMs contains the binary and image files of the whole software packaged, like these:
Inside the stock ROM bundled, those binary and images files are packed in three different formats.
The PDA, CSC and PHONE.
Some full packaged stock ROM comes in multiple package this includes with BOOTLOADER image and PIT files, but in flashing it’s been safe not to use these files.
PDA – This the software/firmware build number version and consists to a code of numbers and letters
CSC – (Consumer Software Customization) Refers to the specific country or carriers for that said firmware is being build.
This where it contains the default settings of each specific geographical region, carrier network providers and network data connections.
Phone – This renders the specific Baseband or device modem data (GSM/HSPDA).
PIT – the PIT file refers as ‘Partition Information Table’. This is only useful for fixing bricked devices if somehow something changed with the partition table layout of the phone’s system memory. But in normal flashing, you should not use this file, or you may screw up your phone if handed carelessly.
FAQ about flashing I9300XXUGNA5 4.3 Firmware/stock ROM
Q: Does it safe to flash a stock ROM?
A: There is a risk danger in flashing firmware either original stock ROM and or custom ROMs on the device. Any unwanted interruption occurred will cause your device into softbricks. If it is your first time heard about this method, it is highly recommended to search more and learn about flashing stock ROM before you proceed.
Q: Does Flashing will remove all my data stored on the device.
A: Yes and NO. There are two types of stock ROM, the wiped and non-wiped version. It is highly recommended that you should back-up all your important data stored in the phone’s memory like contacts, messages before flashing.
Q: Do I Need to ROOT or UNROOT my phone before flashing stock ROM?
A: NO need to root or unroot yor device, but you will lose root once flashing is made. So, you need to re-root your device again.
Q: Does Flashing stock ROM to my phone will erase the network lock?
A: NO. Your network (or SIM) lock will still remain active.
Q: Does Flashing stock ROM will remove root on my phone?
A: Yes. If you currently have rooted, your phone will return back to original factory settings after flashing. You need to re-root again to install any 3rd party applications.
Q: Does flashing an operator specific firmware will restrict my open phone to that operator’s network?
A: NO. Your phone still remain open for any Operator SIM. Operator specific builds usually containing “only specific country or carrier provider” logo, bloatwares, wallpapers and/or browser settings, etc.
Disclaimer: We shall not be held responsible if anything happens to your device by following this guide. You may proceed at your own risk, your phone is not a toy for us, it is your own personal property, it is up to you to decide on what and how to do about it.
Important Reminders before Flashing Galaxy S3 Firmware/Stock FROM
– Make sure that your Galaxy S3′s battery is fully charge.
– Stock ROM packages comes in two formats the ‘Full-Wipe’ (delete your stored data after flashing) and the ‘Non-Wipe’ (it doesn’t delete your phone’s stored data) but it is highly recommended to make a back up all important files stored from your phone’s internal memory – contacts, messages, etc. before flashing no-matter if it is Full-WIpe or Non-Wipe, just to be safe and ensure that your stored data are in safe if something went wrong during the flashing process.
– Remember or back up the APN settings of your device. ( This only done if you try to installother regions stock ROM.
– Use a PC or laptop that runs in Windows OS, with a good and perfectly working USB serial port. Odin will not work on MAC OS.
– Use the supplied USB cable for your Galaxy S3.
– Enable USB debugging from your phone’s settings. Go to Settings > Applications > Development, and tick the box that says ‘Enable USB Debugging’.
– Do a “Hard Reset” if you have a lot of 3rd party applications installed from your phone, this is useful to gain a smooth flashing. (Just make sure that you already back up all your important files before resetting your device.
– Ensure that KIES is closed and not running in the system tray! Kies will interrupt and doesn’t like Odin, it will block you from flashing.
Step 1: Download the stock firmware and tools for flashing
List of Countries/Carrier receives the I9300XXUGNA5 4.3 update
Stock Firmware 4.3 I9300XXUGNA5:
Austria 3 – Hutchison I9300XXUGNA5_I9300DREGML1
Austria Orange – I9300XXUGNA5_I9300ONEGNA1
Bulgaria MTL – I9300XXUGNA5_I9300MTLGNB1
Cyprus – I9300XXUGNA5_I9300CYVGNB1
Czech Republic – I9300XXUGNA5_I9300O2CGML1
Denmark 3 – 2I9300XXUGNA5_I9300HTDGML1
France Vodafone- I9300XXUGNA5_I9300VGFGNB1
France Bouygues -I9300XXUGNA5_I9300BOGGNB1
France NRJ – I9300XXUGNA5_I9300NRJGML1
France SFR – I9300XXUGNA5_I9300VFGGNB1
Germany – I9300XXUGNA5_I9300DBTGNB1
Germany O2 – I9300XXUGNA5_I9300VIAGML1
Hungary Telenor – I9300XXUGNA5_I9300PANGNB2
Hungary Vodafone – I9300XXUGNA5_I9300VDHGNB1
Indonesia – I9300XXUGNA5_I9300OLBGNB1
Ireland – I9300XXUGNA5_I9300TSIGML1
Ireland Meteor – I9300XXUGNA5_I9300METGML1
Ireland 3 – I9300XXUGNA5_I93003IEGML1
Italy – I9300XXUGNA5_I9300ITVGNB1
Italy 3 – I9300XXUGNA5_I9300HUIGNA1
Italy Vodafone – I9300XXUGNA5_I9300VFGGNB1
Italy Wind – I9300XXUGNA5_I9300WINGML1
Malaysia – I9300XXUGNA5_I9300OLBGNB1
Montenegro – I9300XXUGNA5_I9300TMTGML1
Netherlands – I9300XXUGNA5_I9300PHNGMK1
Norway Telenor – I9300XXUGNA5_I9300TENGNB1
Nordic countries – I9300XXUGNA5_I9300NEEGNB1
Philippines Globe – I9300XXUGNA5_I9300OLBGNB1
Philippines Unlocked – I9300XXUGNA5_I9300OLBGNB1
Philippines Smart – I9300XXUGNA5_I9300OLBGNB1
Portugal Optimus – I9300XXUGNA5_I9300OPTGNC1
Portugal – TMN I9300XXUGNA5_I9300TMNGNB1
Portugal Vodafone – I9300XXUGNA5_I9300VFGGNB1
Romania Vodafone – I9300XXUGNA5_I9300VFGGNB1
Singapore – I9300XXUGNA5_I9300OLBGNB1
Singapore SingTel – I9300XXUGNA5_I9300OLBGNB1
Singapore StarHub – I9300XXUGNA5_I9300OLBGNB1
Singapore M1– I9300XXUGNA5_I9300OLBGNB1
Slovenia Mobitel – I9300XXUGNA5_I9300MOTGML1
Slovenia Si mobil – I9300XXUGNA5_I9300VFGGNB1
Sweden – I9300XXUGNA5_I9300VDSGNB1
Sweden 3 – I9300XXUGNA5_I9300HTSGML1
Switzerland – I9300XXUGNA5 I9300AUTGNB1
Switzerland Swisscom – I9300XXUGNA5_I9300VFGGNB2
Thailand – I9300XXUGNA5_I9300OLBGNB1
United Kingdom 3 – I9300XXUGNA5_I9300H3GGNA1
United Kingdom O2 – I9300XXUGNA5_I9300O2UGNA1
Vietnam – I9300XXUGNA5_I9300OLBGNB1
Downloads: Galaxy S3 GT-I9300 Stock Firmware
Step 2: Extract the downloaded stock ROM
You need to extract the downloaded file which is packed in zip or rar files, so that you’ll get the tar.md5 file.
Step 3: Run and Configure Odin
Run Odin downloader Odin3_v3.04 on your PC desktop. Watch out the check-boxes options on the right top of Odin, ensure that the ‘RE-PARTITION’ is unchecked, only the ‘AUTO-REBOOT and ‘F.RESET TIME’ checkboxes are both remained checked.
Step 6: Reboot your Galaxy S3 into Download Mode
To reboot the Galaxy S3 into download mode , you need to turn the power off. After it completely shut off, just press and hold the Volume Down key, Home button and the PowerON/OFF button simultaneously.
You should then prompted into a warning screen and asking you to press volume up if you want to continue or volume down to cancel, just simply press volume up to get into download mode. The download mode then displays an Android robot and say’s “Downloading.. Do not turn off target!!”
Step 5: Connect your Phone to PC or Laptop
Once you already reboot the phone in download mode, simply connect the phone to your PC or laptop USB.
In Odin window – the ID:COM box will turn to blue color and indicates the COM port number and a word “Added” on a log box will prompt you that the device is already detected or recognized by Odin.
Your COM port number might be different from mine. If you do not see a COM port number then there’s something missing or wrong. You may read again from the top of this post.
Step 6: Load the binary .tar.md5 file
If the stock ROM is pack in One .tar.md5 file only the PDA, CSC and Phone modem are already included to it. Now, you need to just simply click on the PDA or AP button, then browse to the folder where the .tar or .tar.md5 you have previously extracted and then select and load it.
Just like this image below, I used Switzerland unbranded Galaxy S3 stock ROM on this guide, so it came as I“I9300XXUGNA5_I9300AUTGNA1_I9300XXUGMK6_HOME.tar.md5″.
Build numbers varies on each product code, specific geographical region and network CSC (Consumer Software Customization) codes.
Note: Again, DO NOT load or put a ‘PIT’ file.
Step 7: Start Flashing or Installing the stock ROM
Once if all set and ready to fire-up, hit the “START” button in Odin to begin flashing the stock ROM.
Do not ever interrupt the phone while already in flashing progress, like disconnecting the cable or turning off the device. Just wait until it completely finish.
Step 8: Watch out for the word PASS!!
When the Stock ROM installation successfully completes, you will then see a word “PASS” in Odin. This indicates that the flashing was already finish, and on the log box it says “All threads completed. (succeed 1 / failed 0)”. The phone will just then automatically reboot, then it’s to remove it from PC or laptop USB connection.
Confirm your fresh firmware installed by typing *#1234# or
Go to Settings>About Phone>Firmware info.
You can also do factory reset by dialing *2767*3855#.
Check and reconfigure your APN settings when data networks connection issues encountered. This only happens if you installed other regions stock ROM.
Possible errors that you may encountered, this is based on my own experience while flashing stock ROM on Samsung Android devices. These are just a few hints on how to resolved it.
Q: I got an error message that says “Set-up connection Failed” ?
A: 1. Check your USB connection from the phone to PC,
2. Connect to another PC USB port
3. Check and try to another USB cable
4. Re-install the USB driver.
Q: Odin just suddenly stuck in the middle of nowhere while in flashing progress, It isn’t responding at all?
A: Check for possible program that might interrupt the process, like disabling the anti-virus and closing any running programs.
Try to use another PC or laptop,
Q: I experienced bootloop or the phone just stuck on Welcome Logo (phone always stop at bootanimation) and it won’t boot normally?
A: You can fix it via recovery mode option, do this:
Boot in recovery mode
1. Press and hold Volume Up, Home and Power button.
2. Use volume keys to select, Up and Down and Power or Home key to select the option
3. Select Wipe Data/Factory Reset using the Home button.
4. Next select the Wipe Cache Partition
5. Lastly, select Reboot System Now to reboot your Galaxy S3 in Normal mode.
Q: My Galaxy S III is now soft-bricked, what should I do then.
A: For 3 years, never been happened to me soft-bricking my older phones using Odin, I was once got soft-bricks using ROM manager. But if somehow this happens to your device, here’s how.
If you can still access the phone in Download Mode, then you can recover it by repeating the flashing procedure again.
If not, that’s seriously bad. The only option is to send it to your nearest service center. Folks at service will recover it by forcing to re-flash the firmware via JTAG.
That’s it! you have now learned how to install Samsung Galaxy S3 stock ROM. You can use this procedure again and again, using any future stock ROM that only match with your device. But remember DO NOT use this method to downgrade your Galaxy S3 to any old firmware since the latest 4.3 updates has a new security policy guidelines which prevents you to downgrade. All other questions and suggestions are most welcome, just let me know by leaving a message on the comment form below. Enjoy!.