KOCASO M7850 - Manual (Page 6)

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Tap to activate or deactivate wireless connection features and other settings .
Wi-Fi：Activate or deactivate the Wi-Fi connection.
Auto-rotate screen：Activate or deactivate the auto rotation feature.
Brightness：Adjust the basic brightness level of the display to lighter or darker.
Notifications：Activate or deactivate the notification feature.
Settings：Access Settings application.
Auto rotation
If you rotate the device while using some features, the interface will automatically
rotate as well. To prevent the interface from rotating, open the notifications panel and
select Auto-rotate screen, then scroll it to Off.
Lock & unlock the screen
To unlock the screen, tap and hold the lock icon, then drag it to the unlock area where
the unlock icon is.
To lock the screen manually, press Power key .
Enter text
You can enter text by selecting characters on the virtual keyboard.
Tap the text input field to display the virtual keyboard. To hide the keyboard, tap
at the task bar.
To change the text input method, tap at the task bar.