Decide How to Install Android Pie
The Galaxy Note 9 Android Pie update is rolling out slowly and it could take weeks to hit your device. If you're feeling impatient, you can download the update right now.
If you don't want to sit around waiting for the update to arrive Over-the-Air (OTA) you can manually install the software onto your device right now.
If you're interested in manually installing Android Pie, you should get familiar with the installation process right now.
If the manual installation process is too complicated for your skill set, you'll want to hang back and wait for the OTA to arrive.