Why is my notification panel not showing up?
You can find the gear icon in the Quick Menu panel by swiping down from the top of your screen or you can find the app icon on one of your Home screens, in the app drawer, or by searching. Tap Notifications. You may see a menu called "Apps & Notifications" instead, and then you'll need to tap "Notifications" again.
How do I unhide the notification bar?
Slide down on the taskbar and select the Settings icon. In the settings menu, tap on Apps and notifications. In the Apps and notifications menu, tap on Notifications.