AT&T has launched the official Android 8.0.0 Oreo official update for all the Galaxy Note 8 users on their network.
The new Android 8 Oreo OS upgrade is being rolled out in stages for all Samsung Galaxy Note 8 users on AT&T, but not everyone will get the new firmware files at the same time. That is why you can use our tutorial and ODIN app in order to flash the Oreo firmware manually.
This guide can be used to restore your Galaxy Note 8 AT&T device to 100% stock firmware from custom ROMs.
Before starting the flashing process you need to check the following guidelines:
- use this guide only for the AT&T Samsung Galaxy Note 8 devices.
- don't try to flash the firmware on any other different smartphones.
- the model of your device has to be SM - N950U1 and be on AT&T.
- download and install the Samsung USB drivers from here on your computer.
- for the update process you need to use the ODIN app, and for this tool to work on your PC you have to install the above usb drivers and to enable USB Debugging option from Developer Options.
If you can't find Developer Options you need to enable that first:
- go to Settings> About Phone> Software Information and here tap 7 times on the Build Number text.
- return to Settings, as Developer Options will be listed there.
- open Developer Options and find USB Debugging.
- you can install the Android 8.0 Oreo official update over rooted firmware, but you need to know that root access won't survive the update process.
- also, any custom Recovery you might have flashed is going to be replaced with stock Recovery.
- you can flash the new update over a custom ROM, but you need to know that an extra Factory Reset process has to be applied after the update is done.
- the Factory Reset process is listed at the end of the tutorial.
- the Factory Reset process won't remove any data from internal storage, nor in case you lose any important data files during installation.
- the Factory Reset shouldn't delete any files from internal storage.
- in case your phone runs 100% stock Android firmware, then you can initiate the update process as fast as you can and no data will be lost in the process.
- check the entire post and do not skip any steps.
- this guide has to be used by advanced users only, as we cannot be blamed in case you brick the phone nor in case you lose any important data files.
How to install Android 8.0.0 Oreo Update Manually for Samsung Galaxy Note 8 AT&T:
- Download Android 8.0.0 N950U1UEU3CRC1 tar.md5 firmware update for your Galaxy Note 8 AT&T from here.
- When the download is done you have to extract the archived contents.
- save the files on your PC.
- you will obtain six different firmware files with the Tar.Md5 extension.
- don't unzip the obtained files.
- Download Odin 3.12.3 zip from here.
After the download is done you can extract the files.
- Power off the device.
- Boot it in Download Mode.
- Launch Odin exe on your computer.
- Now connect the phone with the PC using the USB cable.
- wait for ODIN to add the device.
- if the phone is not added you need to reinstall the usb drivers.
- Return to ODIN's main menu and load the update files.
- Click AP and load the N950U1UEU3CRC1 tar.md5 file with AP in the name.
Click BL and load the BL N950U1UEU3CRC1 tar.md5 file.
Click CP and load the CP N950U1UEU3CRC1 tar.md5 file.
Click CSC and make sure to load the files with HOME_CSC in the name.
- Don't load the file with CSC-only in the name, as that file will tell ODIN to wipe clean the device.
- Hit START to begin the updating process.
- don't press any buttons until the flashing process is done.
- When the update is complete you can see the PASS alert shown by ODIN.
Unplug the phone from PC and reboot the device in normal mode.
These were the steps that you had to take in order to complete the new official update for your Galaxy Note 8 AT&T smartphone.
If the FAIL alert is displayed by the ODIN app, then you will have to repeat the tutorial more than once. If you do repeat installation you need to make sure that your phone meets all requirements and that you won't be skipping any steps.
If the PASS alert is displayed by the ODIN app, but your phone enters in a boot loop or it gets stuck at the boot animation, then you will have to Factory Reset the Galaxy Note 8 system partition.
The factor reset steps below should be applied by those that have installed the official update over a custom ROM, too, as otherwise the device won't boot.
Here's how to factory reset the Galaxy Note 8 AT&T from Recovery Mode:
- power off the device.
- boot it in Recovery Mode.
- select the 'wipe data/ factory reset' option.
- confirm process.
- reboot phone in normal mode.
If you need more help you can tell us in comments below.