Going Online; Managing Wi-Fi Connections; Data Saver (Background Data) - Acer B3-A42 User Manual

Managing Wi-Fi connections

If you did not connect to a Wi-Fi network when you first started your
tablet, or want to connect to a new network, swipe left to the list of
apps and tap Settings > Wi-Fi to manage your connection settings.
Alternatively, swipe down from the top of the screen and tap the Wi-Fi
button to toggle on and off the Wi-Fi connection.
If Wi-Fi is not on, tap the Wi-Fi switch to On and wait for your tablet to
detect nearby networks. Tap the name of your network and enter a
security password, if needed.

Data saver (background data)

The Data Usage section shows how much data has been transmitted
to your tablet, either in total or for each app. This information is useful
if you are using a metered service.
If an app is using too much data, or you need to control how your data
service is used, open Settings, then Data Usage, and turn Data
Saver on. Tap to see a list of apps installed on your device, you may
disable background data for individual apps. An app controlled by the
Data Saver will only be able to access to a data connection when
you're actively using the app.
Note
Blocking background data may cause some apps to stop working correctly.
For example, background data is required to make regular checks for
updates, useful for email or messenger apps.
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