Charge Your Galaxy S7
Once your version of the Galaxy S7 Oreo update starts rolling out, make sure you keep your device charged up above 50%. This way, you'll be able to install Android 8.0 Oreo soon after it arrives for your phone.
Most Samsung Galaxy Android software updates require you to have 20% of battery charge to complete the installation process.
We recommend keeping a 50% battery charge on your Galaxy S7 or Galaxy S7 Edge for Oreo because it's much bigger than your standard upgrade.
Think about keeping a charger close by once your Galaxy S7 Oreo update starts rolling out. That way, if your device isn't charged, you can get plug it in and get Oreo on board ASAP.