If you love to test new ROMs and experience new features and capabilities that cannot be found on the stock Android firmware and if you like to do all that while improving the overall Android experience, then this tutorial is for you. The guidelines explained below will show you how to successfully install a new custom ROM software on your Samsung Galaxy S7 Edge. So, stay close if you want to test the new Toxic 8.0 ROM.

Yes, that’s right; the Toxic firmware is based on Android 8.0 Oreo – it uses the framework-res APK of Android Nougat but is based on stock / default Android 8.0 Oreo system. The custom ROM can be successfully installed on the Samsung Galaxy S7 Edge as it is stable and smooth and can be used without problems on a daily basis. The best part is that this particular custom update is coming with a pure-like Android UI that isn’t pre-loaded with unnecessary apps and features and which runs way better than the built-in Samsung UI.

Additionally, the Toxic 8.0 ROM is extra-fast and minimal. It will manage to bump speeds on your device and optimize the battery power. Bottom line, with the help of dedicated features you will be able to improve general performance and tweak everything else. And, to conclude these introductory lines, with this Android 8.0 Oreo based firmware installed your Samsung Galaxy S7 Edge should run better and faster than it used to while you will be able to enjoy a far better battery life.

This ROM is developed by xda senior member davecotefilm so we must thank him for this new update opportunity. However, as it should be already clear for you, this is not an official way in which you can update your Galaxy S7 Edge to Android 8.0 Oreo. The Toxic 8.0 ROM is developed and released by third party devs and it cannot be associated with Google or with your OEM. Unfortunately, that can lead us to a certain conclusion: Samsung KNOX is going to be tripped, so you can lose your phone’s warranty and the access to some built-in Samsung apps. Note: you can restore the warranty flag if you choose to use Odin for reinstalling the stock Android firmware.

A Nandroid backup should be ensured first on your device. This is a precaution measure that can turn out to be extremely helpful – for example, if after completing this tutorial you end up in regretting your decision of applying the Toxic 8.0 ROM, you can choose to flash the Nandroid backup package in order to go back to stock Android OS.

Root access must be ensured on your smartphone as otherwise this update process cannot be completed – root will unlock and prepare the Android OS for the flashing procedure that’s explained below. Moreover, a custom recovery image must be used – you will flash the actual firmware package through that environment; and, for making things work without further problems, choose to install TWRP recovery on your Samsung branded device.

A general backup isn’t optional as if you aren’t careful enough you can lose your contacts, call logs, texts, images, videos, audio files, market apps, calendar info, saved passwords, EFS folder or IMEI / NVRAM data. On your Galaxy S7 Edge you can choose to secure personal files by using dedicated backup and restore apps that are available on Google Play or you can just choose to sync packages with your Google Account, or to use built-in cloud storage platforms. Do note that during the Toxic 8.0 ROM flashing operation a hard reset will be initiated, so don’t think twice and choose to apply the backup as soon as possible.

This is going to be a manual update operation – this is a custom ROM and not an official Android 8.0 Oreo roll out. So, a computer is required – on that PC you should now install the right drivers for your Samsung Galaxy S7 Edge (Samsung KIES can help you in that respect).

On your phone you have to go to About Phone (from Menu - > Settings) from where you then have to tap repeatedly on Built Number – after 7 or 10 taps you will receive the ‘you are a developer’ message. Afterwards, you need to access Developer Options (navigate towards ‘menu - > settings) as from there you have to check the USB Debugging feature.

More than 50% power should be left on your smartphone before you head towards the steps from below. If the power is lower than this threshold your device might get turned off right while the update operation is running. In that case you can risk in soft bricking your Galaxy S7 Edge – you can experience various malfunctions. Thus, for avoiding such unpleasant situations I recommend you to charge your handset before doing anything else, if that’s required.

How to Update Samsung Galaxy S7 Edge with Android 8.0 Oreo stock-like Toxic ROM

  1. Start by downloading the required files on your computer: get the BL and CP packages from here and from here (these are Odin flashable packages) and the Toxic 8.0 ROM file from here.
  2. Save these files on desktop.
  3. Next, download Odin (from here) on your computer; afterwards, run the downloaded executable file and follow on-screen prompts for setting up the flashing program correctly.
  4. Run Odin on your PC and reboot download mode on your Galaxy S7 Edge – switch off your device and press and hold the Power, Volume Down and Home buttons together.
  5. Connect your smartphone with your PC with the help of the USB cable.
  6. At that point, on Odin you should receive the ‘added’ message and the ID:COM field section should be turned yellow or blue.
  7. So, flash the BL and CP packages – on the flashing program click on the BL and CP buttons and load the appropriate files.
  8. Click Start on Odin and wait while the installation process is completed – the ‘pass’ message will be displayed in the end and the ID:COM field will be turned green.
  9. Transfer the ROM file from desktop to your Galaxy S7 Edge and then remove the USB cable.
  10. Power off your device and reboot into recovery mode: press and hold the Power, Volume Up and Home buttons together.
  11. In recovery make a hard reset and clear app data cache by choosing ‘wipe data factory reset’ followed by ‘wipe cache partition’ and by ‘wipe dalvik cache’.
  12. Return to main menu of recovery and tap on Install.
  13. Load the Android 8.0 based custom ROM package and swipe left in order to resume the flashing process.
  14. In the end, from main menu of recovery choose ‘reboot system now’.
  15. Done.

Well, that’s great. Now, the new Toxic 8.0 ROM should boot on your Samsung Galaxy S7 Edge. You should start testing the new Android 8.0 based functionality in order to make a proper idea about this new update. Of course, you should then share your experience with us and with our readers – get in touch with us easily by using the comments field available below. Also, stay close for further update opportunities or for other similar Android related tips and tricks available for your handset. Enjoy.

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