Summarize:

The Settings app has an image of a gear.  The image may look different if you are using a different theme on your Android device.  It always says "Settings". |techicon|x30px]].  It's near the top of the Settings menu next to the icon of squares in a grid. This will display a list of all your downloaded and system apps. On older versions of Android, this menu simply titled "Apps". It's the icon in the upper-right corner.  This displays a drop-down menu. It's at the top of the drop-down menu.  This displays system apps that came with your phone. All the apps installed on your Android device are listed in alphabetical order.  This will display the Application Info page. You can only uninstall updates on certain apps on certain phones that came pre-installed on your Android device. It's the button with three vertical dots.  It's in the upper-right corner of the Application Info page. If you don't see this button in the upper-right corner, you cannot uninstall updates.  Go to Part 2 to learn how to uninstall the app and install an unofficial older version of the app You will see a popup asking if you want to uninstall updates for the app. It's in the lower-right corner of the popup.  This will confirm that you want to uninstall updates and uninstall the updates. This will restore the version of the app that came with your phone.  You will not be able to roll back to an earlier version of the app.
Open the Settings  app. Tap Apps [[Image: Tap ⋮. Tap Show System. Tap an app. Tap ⋮. Tap Uninstall Updates. Tap OK.