Charge Your Galaxy Tab
Once your Android Pie update starts rolling out, make sure you keep your tablet charged. This way you'll be able to install the update as soon as it's available if that's what you want to do.
Most Galaxy Android software updates require you to have a 20 percent battery charge to complete the installation process.
We recommend keeping a 50% battery charge for the Android Pie update because it's a huge upgrade and could take quite a bit of time to complete.
We also recommend keeping a charger close by. That way, if your tablet doesn't have enough charge, you can plug it in to get the upgrade process going right away.
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