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Galaxy S3 i9300 Unbrick [restore to stock rom] [noobs][easy]

Hi guys! This is a noob-proof guide on how to flash stock samsung firmware on your i9300. Whether you have bricked it or just want the stock firmware back. Here's how to do it (detailed explaination)
WARNING! : This is only for the GT i9300 (international version) , Check your device before proceeding. Also you might lose all your data. So backup! i am not responsible if you brick your phone(although very unlikely) by not following the guide properly
Also you will lose your custom recovery, Custom ROM and will not longer have root
Ok lets begin!
1. Make sure you have the samsung drivers installed on your pc (http://bit.ly/SDaIIE)
2. Your device should have at least 80% battery left
3. Enable USB Debugging by going to Settings>Developer Options>Tick the Usb debugging tick box!
Files needed :
1. Android 4.1.2 I9300XXEMA1 for Galaxy S3 I9300 - http://bit.ly/10vkxdj
2. Odin 3.07 - http://bit.ly/16aRzF4
Extract The firmware Zip file until you get a file with a .tar extension and some other files. Do not extract furthur
Extract odin zip file till you get Odin3 v3.07.exe
Now here comes the actual flashing part
1. Power off your smartphone. Wait 5-6 seconds for vibration to confirm complete switch off.
2. Now, get into Download Mode by pressing and holding Volume Down, Home and Power button simultaneously until Samsung Galaxy logo appears in phone screen. Wait few seconds and your phone will be in download mode.
3.Open odin as administrator and connect your s3 to your computer with usb cable
4. You will get a message "Added" in the message box in odin and You should also see COM port with a number in Yellow if you successfully added your device.
if you don't get this , try another usb port.. if it still doesn't come , reinstall drivers.
5. Select these files from I9300XXEMA1 folder in Odin at respective buttons:
Click the PDA Button, and select the .tar.md5 file here with *code* appearing in its name
Click the Phone Button, and select file with *modem* in its name (leave if there is no such file)
Click the CSC Button, and select file with *csc* in its name (leave if there is no such file)
Click the PIT Button, and select the .pit file. Use only if you got it while extracting , otherwise ignore it.
6. make sure Auto Reboot and F. Reset Time checkboxes are selected. Also, make sure that Re-Partition checkbox is selected, only if you are using a .pit file
7. Double check everything above and hit start!
8. once flashing is complete the phone will reboot automatically and soon you will see a PASS message with green background in the left-most box at the very top of the Odin. You can then unplug the USB cable to disconnect your device from computer.
congratz , you have just restored your i9300!
If this has helped you make sure to hit the thanks button!

what have you developed?

We already know Odin, and this doesn't UNBRICK anything
Sent from my GT-I9300 using xda premium

This is so worthy of development thread. ...:banghead:
Sent from my GT-I9300 using xda premium

Helpful post to some,,,,,however the unbrick part is misleading as all this does is flash a stock ROM.

Only soft brick... like any other Samsung device.

Reported not development plus we have all this information already posted .
OP is splattering this post all over the forum .
jje

[Q] samsung Developers answer

How to root samsung galaxy s4?

CyanogenModFT said:
How to root samsung galaxy s4?
Click to expand...
Click to collapse
Wrong section. Please close this and go to question tread
Sent from my GT-P7500 using xda app-developers app

1) Download and install USB Driver for Samsung Galaxy S4 on the computer.
2) Verify that USB Debugging Mode is enabled which will allow to connect the phone with the computer and use the Android SDK with it. [Press Menu>> Settings>> Applications. From there navigate and click on Development option and ensure the USB Debugging Mode is turned on.]
3) Create a backup of all data
4) The battery of the device should have above 80 per cent charge.
5) The root method works only on the Samsung Galaxy S4 I9500 running on Android 4.2.2 XXUAMC6 Jelly Bean; applying this root to incorrect variants will brick the device.
Steps to root Samsung Galaxy S4 I9500 on Android 4.2.2 XXUAMC6 Jelly Bean
1) Download I9500XXUAMC6 pre-rooted firmware for Samsung Galaxy S4 to the computer and extract the zip file
2) Download Odin v1.85 which will help to root the Jelly Bean firmware
3) Turn off the Galaxy S4 and enter Download Mode. Press and hold Volume Down + Home buttons together and then press the Power button until the construction Android robot and a triangle are seen. Press the Power button again to enter Download Mode
4) Run Odin on the computer
5) Connect the phone to the computer using USB cable while it is in Download Mode. If the device is connected successfully, one of the ID: COM boxes will turn yellow with the COM port number. This step might take some time
6) Select the files mentioned below to install on the phone
a) Click on 'PDA' and select file with 'CODE' in its name
b) Click on 'Phone' and select file with 'MODEM' in its name
c) Click on 'CSC' and select file with 'CSC' in its name
d) Click on 'PIT' and select the .pit file
7) Ensure the 'Auto Reboot' and 'F Reset Time' options are selected in Odin. Also ensure the 'Re-Partition' option is selected in case the .pit file is being used
8) Double check everything and finally click the 'Start' button in Odin. The installation process will begin and take a few minutes to complete
9) After the installation process is completed, the phone will restart automatically. Once the home screen appears on the device, unplug the USB cable
:good::good:

[GUIDE] Recover Samsung Device from Bootloop or Back to Stock Rom

I wanna share my knowledge here
Learning from my experience using Samsung's devices, I found similarities in the way of reversing Samsung devices to stock rom.
So this guide should be practice for almost all Samsung devices
Ok, let's get started
First, download all these stuff
1. Samsung USB Driver or go to this Thread (install it)
2. Samsung Kies (install it)
3. Odin v.4xx or Odin v1-3 or go to this Thread (just open when need it)
4. And of course your stock rom
Download from here (choose the right stock rom and the newest depend on your model)
5. Extract the stock rom using winrar/7zip
-you should 3 files PDA_xx.tar.md5, Phone/Modem_xx.tar.md5 and CSC_xx.tar.md5 or more
-If you have just two files, .xxxx.tar.md5 & SS_DL.dll, i'll give it the guide too
Second, Go to download mode
- For device with Menu button : hold power button+menu button+volume down (vol -)
- For device without Menu button : hold power button+volume down (vol -)
For the 3 Files or more
- Go to download mode
- Plug your device to PC/Laptop
- Open Odin
- Choose PDA (browse it from your extracted stock rom)
- Choose phone/modem (browse it from your extracted stock rom)
- CSC (browse it from your extracted stock rom)
- If there's more files, just put it on the same box of the files names
- Check list auto reboot and f.reset time(look at the left)
- Click start and wait
- If success, should be writen "PASS" on left side
For 2 files only
- Go to download mode
- Plug your device to PC/Laptop
- Open Odin
- Just choose PDA and browse it the file(forget about SS_DL.dll or XX.dll file)
- Check list auto reboot and f.reset time(look at the left)
- Click start and wait
- If success, should be writen "PASS" on left side
If there's something miss or wrong, please tell me, I'll fix it this ASAP
And Let's helping people

Grand uses Odin 3.04/3.07 only.
Sent from my GT-I9082 using Tapatalk

[Q] Little help with my S4 please!

So i have a rooted galaxy S4, it also has a flashed rom on it (its an s4 rom but was manually flashed due to a few problems)
So I was wondering, is there any way for me to unroot my phone, but also reset everything else (I mean the flashed rom etc back to normal..., and just have my S4 like I just bought it?)
Any help would be appreciated, thanks!
-Eddie

in order to reflash the original rom you had, you need to have some former-flash informations:
-Android version you had before the flash
-Country of origin of the rom (not really important but if you want it really as you had it from factory you need this information)
Now what you need to do is to activate usb debugging from parameters : (Plus -> about device -> tap 8 times on baseband version, it will tell you that developper mod is activated, back to menu, tap developper options, tick usb debugging)
You need to download Odin 3.07 or whatever (i advice you use this one.)
and download the firmware you exactly want from sammobile (Warning, choose the exact model device you have)
then you need to factory reset your phone (via recovery)
now shut down your phone, put it on download mod (down volume + home button + power button)
press up, open odin on your computer then plug your phone to the computer. wait until your phone is detected in odin (a blue com will appear on odin). if your phone is not recognized, install usb drivers (google it) and turn off kies.
now extract the firmware you downloaded from sammobile, you will have a .tar.md5 file, click on pda, (or ap if newer odin version), then choose the file (it will take a long time to charge, if you don't want to wait, you can rename the .tar.md5 file to just .tar)
Click start and wait until "pass!" appears on odin.
That is all.

Filous11 said:
in order to reflash the original rom you had, you need to have some former-flash informations:
-Android version you had before the flash
-Country of origin of the rom (not really important but if you want it really as you had it from factory you need this information)
Now what you need to do is to activate usb debugging from parameters : (Plus -> about device -> tap 8 times on baseband version, it will tell you that developper mod is activated, back to menu, tap developper options, tick usb debugging)
You need to download Odin 3.07 or whatever (i advice you use this one.)
and download the firmware you exactly want from sammobile (Warning, choose the exact model device you have)
then you need to factory reset your phone (via recovery)
now shut down your phone, put it on download mod (down volume + home button + power button)
press up, open odin on your computer then plug your phone to the computer. wait until your phone is detected in odin (a blue com will appear on odin). if your phone is not recognized, install usb drivers (google it) and turn off kies.
now extract the firmware you downloaded from sammobile, you will have a .tar.md5 file, click on pda, (or ap if newer odin version), then choose the file (it will take a long time to charge, if you don't want to wait, you can rename the .tar.md5 file to just .tar)
Click start and wait until "pass!" appears on odin.
That is all.
Click to expand...
Click to collapse
Downloaded the correct ROM of sammobile. Can't try at the moment in school right now!
But thanks for the great reply, I'll do it when I get home and let you know how it goes

How to install S4 Mini firware in to a rooted device!

Hey guys! I don't know if anyone else uses Samsung Galaxy S4 Mini today. But I had to install a firmware in the model GT-I9190! This should have been easy enough, but for me it was a little more complicated. I searched for hours for a good firmware. And finally I found one compatible with my region. (Europe).
If anyone else needs to do this. I will offer here the simplest and easiest way to install firmware in Samsung Galaxy S4 Mini GT-I9190.
Here is what you need to successfully install:
1. Laptop or PC
2. USB cable
3. SAMSUNG USB Driver for Mobile: developer.samsung.com/galaxy/others/android-usb-driver-for-windows[/url]
4. Odin 3.09 or higher - odindownload.com/Samsung-Odin/#.XWLDG3tDP4Z[/url]
5. Firmware for your phone: samfrew.com/download/GALAXY__S4__mini__/ie59/SER/I9190XXSCQA2/I9190QERCOD1/[/url] (01.10.2017 multi languages)
samfrew.com/download/Galaxy__S4__Mini__/v050/SER/I9190XXUCOC1/I9190QERCOD1/[/url] (27.03.2015 multi languages)
-First of all you have to download and install SAMSUNG USB Driver for Mobile and Odin on your computer.
-Download the firmware for your phone into a folder and unzip it.
- Open Odin: right click, runs as Administrator.
- Select only two options in Odin: Auto Reboot and F.Reset Time
- Turn OFF the phone and Power On in Download Mode: (Download Mode: Volume Down button + Home Button + Power On Button, at the same time)
- If the phone started with the android logo now, push volume up once to enter download mode
- Now connect the phone to the computer in download mode.
- In the left corner in the text box it must be written: <ID:0/006> Added!!
- Now press the AD button and select the firmware from the folder where it was unzipped.
- If all went well. Then press start button and wait for Odin to do the job. This may take several minutes.
- When everything is ready in the first box on the left side you will need to see PASS
- That's all. Enjoyed your phone