How to Install Android Oreo on the Samsung Galaxy Note 8 (Snapdragon and Exynos)
UPDATE: 3/20/2018: Added instructions for Exynos-based devices.
Samsung's update cycle this time around has been less than optimal, with several Galaxy S8 and S8+ users yet to receive a taste of Oreo. Things are much for Galaxy Note 8 users, who were doomed to wait even longer for an update. However, it looks like a version of Android Oreo for the Galaxy Note 8 was found in the AT&T servers, but wasn't rolled out by the carrier yet. The good news is that it has been officially certified by Google and passed SafetyNet compatibility, which means apps like Google Pay will now work.
The update is only for Galaxy Note 8 running the Qualcomm Snapdragon 835 SoC. People using the Exynos variant will have to wait, but don't worry, as soon as we get a word about it, we'll keep you updated. This build is also an update on top of all the new features that come with Android Oreo, such as picture-in-picture mode, notification channels, notification snoozing, background app optimizations, and more. There are also plenty of changes with Samsung Experience 9.0. The March security patch is included in the update as well. AT&T users can expect the update via OTA in the next week or so, but if you can't wait, here's how you can download the update on your device manually.
- Check your phone’s model number to see if its N950U or N950U1(Snapdragon only) and N950F for Exynos. To verify the model number, you need to go to settings>about device>status. If the model number is anything other than the two above, the process may not work, and you may risk bricking your device and voiding any warranties.
- You will need to download BRA8 Odin and the update.zip for Snapdragon devices. For Exynos devices, download the CRC1 Odin for the Galaxy Note 8.
- If you have an SD card inserted in the phone, copy the OTA file onto it. If not, then you'll need the OTA file on your computer. The step won't be necessary for Exynos devices.
- Extract the Odin firmware linked earlier. It will be in a zip format, and the contents can be extracted by using software such as WinRAR and 7zip.
- Reboot your device into download mode by powering off your device then holding the Bixby button + Volume down + power
- Download the Odin tool and plug in your phone to your computer. Odin is an official tool from Samsung that can flash official Samsung firmware onto Samsung Galaxy devices. Once opened, on the right side, you will see five sections, but only 3 of those will be used for Snapdragon devices and 4 for Exynos devices.
- For Snapdragon devices, click the BL button and navigate to your Odin firmware folder where you extracted the BRA8 ODIN files (It has to be on your computer), and then click the file starting with BL. Do the same for AP and CP. For Exynos devices, Click the BL button and navigate to your Odin firmware folder where you extracted the contents of the CRC1 Odin files, then click the file starting with BL. Do the same for AP, CP, and HOME_CSC (Do not use CSC_XXX. It will erase your data)
- Click the start button at the bottom of Odin. For Exynos devices, the process ends here, once your device has sucessfully rebooted, you should be running Oreo. For Snapdragon devices, proceed further.
- Wait for your device to flash and then reboot. Once the process is complete, power off your phone and boot into recovery by holding down the Bixby button + Volume up + power button.
- Select “apply update from SD card.” If you copied the update.zip file to an SD card. You can select it by using your volume rockers to navigate and the power button to select. After selecting the option, find the file called “update.zip” and select it with the power button. The update should begin installing. After completion, you should be directed to your home screen and run Oreo.
- If you don’t have an SD card, select “apply update from ADB.” On your computer, open a command prompt/terminal. On windows, a command prompt window can be opened by pressing Windows key + R and typing “cmd.” On Mac, navigate to your Applications folder, then open the Utilities folder and the Terminal application from the folder.
- Once a command prompt/terminal window is open, type "adb sideload <location of update .zip>" (without quotes) and press enter. For example, if the file is saved in C:\Downloads, then type "adb sideload C:\Downloads\update.zip". The update should begin installing, and once you're on the home screen, you should be running Oreo.
Before attempting the upgrade, it is recommended that you backup all your data as a good measure. Ideally, there should be no loss of data if you follow the instructions to the tee. Ensure that the process is not interrupted in any way and that your phone battery is at least 60 percent charged. There should be no problems if you follow the guide to the tee.
News Source: XDA developers
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