Unroot and Restore Back Sprint Galaxy Note 2 SPH-L900 Original Firmware Stock ROM

If you have done some modding of your Galaxy Note2 like rooting, installing custom recovery and and customROMs and now you decided to revert your device to its original factory default settings like the way you bought it out-of-the-box. Here’s the guide that might help you on how you can install back its original firmware or stock ROM. This procedure is called flashing by means of using Odin and the complete system image or software to your device. This is yet very simple to those who already experience  rooting their devices but a bit risky for beginners on some part.

What is a stock ROM?
The stock ROM is the software or called as firmware for handheld devices. This the original operating system image on your devices from Samsung, or any releases from Kies or OTA updates. When you already installed any unofficial firmware, custom recoveries and root kernel images unto your device, the original firmware has been modified. So, in order to fix that, you need to install back the original, unmodified and unrooted firmware to your device.

How useful this method?
Rooting and installing unofficial firmware already voids your device warranty.This is only useful if you might want to sell, give it to your friends or wanted to reset your Galaxy  Note 2 to its original settings in-case in-need of warranty back. Sounds just like that.

Guide: Revert back Galaxy Note2 L900 to factory stock firmware

Step 1: Important Reminders before Flashing Stock ROM on Samsung Galaxy Note SPH-L900

  • Make sure that your Galaxy Note2 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.
  • 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’.
  • 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 2: Download the needed tools for flashing


Grab your Sprint Samsung Galaxy Note 2 Original Firmware or Stock ROM

SPH-L900 (U.S Sprint)
Stock /original firmware: choose  SPH-L900 Stock Firmware

Step 3: Install the USB Driver and Extract the downloaded stock ROM

Install the USB Driver first to get rid of flashing failures. Also need to extract the downloaded file which is packed in zip format, so that you’ll get the tar.md5 file.

Step 4: Run and Configure Odin

Run Odin downloader Odin3_v3.07 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 5: Reboot your Galaxy Note 2 into Download Mode

To reboot the Galaxy Note2 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 Power ON/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 6: Connect your Galaxy Note 2 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 7: Load the binary .tar.md5 file

T he stock ROM is pack in One .tar.md5 file only. Now, you need to just simply click on the PDA button, then browse to the folder where the .tar or .tar.md5 you have previously extracted and then select and load it.

Example below is a stock 4.1.1 Jelly Bean,

Odin back Sprint Samsung Galaxy Note SPH_L900 to stock firmware

Step 8: 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 9: 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 time to remove it from PC or laptop USB connection.

Confirm if you successfully restore your Sprint Samsung Galaxy Note II (SPH-L900).

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#.

Possible errors that you may encountered, this is based on my 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 Note 2 in Normal mode.

That’s it! Just let us know how’s it’s going.

One thought on “Unroot and Restore Back Sprint Galaxy Note 2 SPH-L900 Original Firmware Stock ROM”

  1. Thanks!!!! Worked well. After install, I had to wipe the internal data and cache partition to boot up. Excellent walk-though!

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