System Updates; About Phone - Zte Z3001S User Manual

Accessibility
In the Settings app, tap Accessibility. You can configure the
system accessibility options and accessibility plug-ins on your
phone, such as using Color inversion or Font size for users
with sight problems.
Printing
In the Settings app, tap Printing to configure Google Cloud
Print service or other printer plug-ins. You need to install these
apps and services from the Google Play Store and your printer
manufacturer.

System Updates

In the Settings app, tap System updates to update your
PRL (preferred roaming list), your user profile, your Android
software, and your phone firmware.

About Phone

In the Settings app, tap About phone to view phone status,
legal information, 4G settings, and other information.
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