Sprint has released the new and official Android 8 Oreo OS upgrade for all the Galaxy S8 PLus users on their network.

Check the info below in order to learn how to manually install the new firmware before the Oreo US upgrade files are rolled out in your region.

The new Android 8 Update is rolled out in stages, over-the-air, but it will take a while before it reaches every single user. If you are an advanced user, then you should check the guidelines below and learn how to install the new update on your Galaxy S8 Plus Sprint device using ODIN app.

Before starting the flashing of this new firmware you should check the following guidelines:

  • use this guide only with the SPRINT CDMA Galaxy S8 Plus devices.
    - the model number of your phone has to be the SM - G955U.
  • don't use the guide for other different models.
  • this tutorial has to be applied by advanced users only.
    - we cannot be blamed in case you brick the phone nor in case you lose any data.
  • for the update process you will use the ODIN 3.13.1 app.
  • for Odin to work with your PC and phone you will first have to install the Samsung USB drivers and to enable USB Debugging from Developer Options.
    - download and install Samsung USB drivers from here.
  • Developer Options might not be listed under Settings, so you will have to enable that first: go to Settings> About Phone> Software Info and here you need to tap 7 seven times on the Build Number text.
    - return to Settings, find Developer Options and enable USB Debugging option.
  • you can flash the update using ODIN if your Galaxy S8 Plus is rooted, but root access won't survive the installation.
    - any custom Recovery will also be replaced with stock Recovery.
  • you can flash the new update over a custom ROM, too, but an extra Factory Reset process has to be applied after the update is done installing.
    - the Factory Reset steps are listed at the end of the guide.
    - the Factory Reset won't delete any data from internal storage, but it will wipe the system partition along with all installed apps.
  • read the whole post before starting installation.
  • make sure that the battery charge levels are over 50%, so that the Galaxy S8 Plus won't power off during the Android 8.0 installation.

How to flash Android 8.0.0 Oreo Update manually for Galaxy S8 Plus Sprint CDMA:

  1. Download the Android 8.0.0 G955USQU2CRC5 archive file from here.
  2. When the download is complete you have to extract the archived contents and save them on your PC.
    You will obtain five different Android 8.0.0 G955USQU2CRC5 file with tar.md5 extensions. Don't extract any further than that.
  3. Download Odin 3.13.1 zip from here.
    Extract the contents. Make sure to grab the 3.13.1 Odin version as that one works with Android 8.0 firmware.
  4. Power off the phone.
  5. Boot it in Download Mode.
  6. Launch Odin 3.13.1 exe on your computer.
  7. Connect the Galaxy S8 Plus Sprint device to PC using the USB cable.
    Wait for Odin to detect the phone and continue to the next step.
  8. Get to Odin and start loading the update files.
    Click BL and load the BL_G955USQU2CRC5 tar.md5 file.
    Click AP and load the AP_G955USQU2CRC5 tar.md5 file.
    Click CP and load CP_G955USQU2CRC5 tar.md5 update file.
    Click CSC and load HOME_CSC_G955USQU2CRC5 tar.md5 file. Don't load the file that only contains CSC in its title, as that one will tell ODIN to wipe clean the smartphone.
  9. Hit the START button to confirm the update process.
  10. When installation is done you can see the PASS alert shown by ODIN and the phone should reboot.
    Unplug the phone from PC and wait for Android 8 first boot process to be completed.

Use your default login info in order to regain control over your device once again.

If ODIN shows the FAIL alert, then you have to repeat installation process more than once. If you repeat the guide, then you have to make sure that your phone meets all requirements and that you won't skip any steps.


In case the PASS message is shown by ODIN, but your phone enters in a boot loop or it gets stuck at the boot animation screen for more than 20 minutes, then you have to Factory Reset the phone. This will force it to boot in normal mode.

The Factory Reset steps below should be applied by those that have installed the Android 8.0 Official Update over a custom ROM, too.

Here's how to factory reset the device:

These were all steps you had to go over in order to complete the update. If you need more help you can tell us in comments.

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