How to Install Pre-Release Android Oreo on the AT&T Samsung Galaxy S7 & S7 Edge

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Android Oreo was released many months back, but Samsung has finally approved the official release for the Samsung Galaxy S8/S8+. Recently, a version of Android Oreo for the Exynos Samsung Galaxy S7 Edge was leaked, and can be installed as a custom ROM on our forums. Now, an Android 8.0 build for the AT&T Samsung Galaxy S7/S7 Edge is available.

This is the first release of Android 8.0 for Snapdragon Samsung Galaxy devices, and it brings a bunch of new features and improvements. On top of all the new features that come with Android Oreo such as picture-in-picture mode, notification channels, background app optimizations, notification snoozing, and more, there are also plenty of Samsung-specific changes with Samsung Experience 9.0. This update also contains Samsung’s Bixby.

With Samsung Experience 9.0 comes a new keyboard with stickers and GIFs built in, the App Pair feature from the Samsung Galaxy Note8 which was previously for the S7 Edge only, and much more. The build comes with the latest February security patches so all of the recently disclosed major security vulnerabilities such as BlueBorne, KRACK, and Spectre/Meltdown have fixes in place for them. The update also brings native support for Overlay Manager Service (OMS), the theme engine behind Substratum. Before, the Sungstratum plugin was necessary to apply custom themes, but now you should transition over to the Andromeda plugin which is more stable.

Want to install this update on your AT&T Samsung Galaxy S7 or S7 Edge? Well, you’re in luck, as this update was pulled from the ATT servers and perfectly safe. This update is not a beta, but rather a pre-release build so it might be unstable. Currently, the only way to install this is if you have a Galaxy S7 or S7 Edge on the latest update. There are no Odin builds currently available to flash, unfortunately, so this is the only way. If you feel that this is unstable and you want to uninstall it, you can use this file in Odin for the S7 edge and this for the S7.

How to Install Android Oreo with Samsung Experience 9.0 on the AT&T Samsung Galaxy S7/S7 Edge

1. Check your phones model number. Even though you probably know if you have a Galaxy S7 or S7 edge, this is to make sure this is the AT&T model you are using, so go to settings then in about device and under model number make sure it matches SM-G930A or SM-G935A.

2. If you have a Galaxy S7, download this file. If you have a Galaxy S7 edge, download this file.

3. If you have an SD Card, continue below under the SD Card section. If you don’t have an SD Card, follow the without SD Card section.

With SD Card

4. Transfer your update.zip for your device to your SD Card

5. Boot into recovery mode by holding Volume Up + Home button + Power button

6. Select “apply update from SD card.” You can select this by using your volume rockers to navigate and the power button to select. After selecting that option, find the file called “update.zip” and select it with the power button.

7. Wait for your phone to reboot then it will be running Android Oreo!

Without SD Card

4. Boot into recovery mode by holding Volume Up + Home button + Power button

5. Select “apply update from ADB.” You can select this by using your volume rockers to navigate and the power button to select.

6. On your computer, open command prompt and type adb sideload <file path to update.zip> If you don’t already have ADB set up, then you can follow these quick set of instructions to get up to speed.

7. Wait for your phone to reboot then it will be running Android Oreo!