How to Unroot Samsung Galaxy S9 and S9 Plus


Samsung Galaxy S9 and S9 Plus are out. Once again, Samsung has produced 2 incredible smartphones. Both the Galaxy S9 and S9 Plus come with a brand new CPU, an updated camera, new fingerprint scanner option and some other features under the hood.Unroot Samsung Galaxy S9 and S9 Plus

The Galaxy S9 and S9 Plus are all set to make it to the users. These phones are equipped with the Snapdragon 845 or Exynos 9810 CPU. On the Galaxy S9, there is a 4GB RAM and on the Galaxy S9 Plus, there is a 6GB RAM. These phones come with 64GB of internal storage. The WQHD display takes graphics to a whole new level. The headphone jack is still there. There are dual speakers for stereo sound.

Overall, the Galaxy S9 and S9 Plus are real beasts. As soon as these phones land in the hands of some good Android developers, these will be rooted and also get a custom TWRP recovery. While these phones come with the top-notch hardware, almost every Galaxy S9 or S9 Plus user out there will root the phone, flash the custom recovery and, maybe, a custom ROM as well.

Now what happens is, rooting your phone changes the system’s official status to custom. The custom status keeps appearing in the bootloader of the phone. You can see it whenever you boot your Galaxy S9 into the download mode. The rooting also trips the Knox counter. It means that your phone is not eligible for claiming the warranty anymore.

You cannot reset the Knox counter of your phone once rooted, but you can definitely change the custom status to “official” once again. Wondering how? Well, the answer is simple. All you have to do is to unroot Samsung Galaxy S9 and S9 Plus.

So, this guide is all about installing a stock firmware or a what you call is a stock ROM on the Galaxy S9 or S9 Plus. The installation of stock firmware will reset your S9/S9 Plus to its factory state. It means the phone will be unrooted immediately. This will also change system status from custom to official in the bootloader.

Here are the steps to unroot Samsung Galaxy S9 and S9 Plus to reset the system status and to restore the phone to factory state. Let’s have a look at the steps to get this done without any further ado.

Preparing your Galaxy S9/S9+ for the unrooting process

  • This guide is applicable only on the Galaxy S9 or S9 Plus. Do not try it on any other phone.
  • Backup all your contacts, SMS messages, call logs and media content. This process requires wiping your phone’s internal storage. So, to make sure that you do not lose your data, back it up right now.
  • Charge your phone up to 50% to make sure it stays alive during the unrooting process.
  • Disable Samsung Kies or Samsung Smart Switch if you have installed it.
  • Disable Windows Firewall or any Antivirus if you have installed it.
  • Use original data cable to connect your phone to your computer.
  • Enable OEM Unlocking and USB Debugging mode on your phone.
  • Follow this guide to the letter.

Downloads and Installations

  1. Download and install Samsung USB Drivers.
  2. You need to download Odin 3.13.1 as well. Download it and extract it.
  3. Download the latest firmware for Galaxy S9 or S9 Plus. Extract the firmware to get the AP, BL, CP and Home_CSC files.
    Galaxy S9 Firmware FilesQ
    Image for reference only

Unroot Samsung Galaxy S9 and S9 Plus

  1. Open Odin3.exe file on your computer.
  2. Now in Odin, click on the AP tab and select the AP file. Similarly, click on the BL tab to select BL file, click on the CP tab to select CP file and click on the CSC tab to select Home_CSC file.
  3. Put your Galaxy S9 or S9 Plus in download mode now. To do so, power it down first. Now turn it on by pressing and holding Volume Down + Power + Bixby button. As soon as your phone shows a warning, press the Volume Up button to continue.
  4. Connect the S9 to the computer now.
  5. The ID:COM box in Odin should turn blue identifying successful connection with your phone.
  6. Click on the Options tab in Odin and make sure that the only options selected are F.Reset.Time and Auto Reboot. No other options should be selected.
  7. You are all set to start the unrooting process now. Click on the start button and let it flash the stock ROM now.
    Galaxy S9 Stock ROM Installation - Unrooting Process
    Image for reference only.
  8. It will take a few minutes for the process to finish. Once it comes to an end, your phone will reboot.
  9. After your phone reboots, you can disconnect it and check the system status. It should have changed to official now. That’s all.

If you are facing any issues while following the tutorial given above, feel free to contact me through the comment box below.

Usama M, a software engineer by profession, is the founder and editor-in-chief at Techbeasts. At Techbeasts, he uses his expertise to craft solutions to solve everyday consumer tech problems. His main areas of interest are Android, iOS, and Windows. You can find him on YouTube at "Tech with Usama".


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