Telstra ZTE MF833V Manual page 9

Settings > Device settings > USIM PIN Management
Enter your current PIN code to change or disable the PIN

If you make any changes, press Apply to save the change

If you enter the incorrect PIN code three times in succession you will lock your SIM card.

Contact your service provider to obtain your PUK code

Press the Help icon
Settings > Device settings > RESET

Press Reset to reset your device to factory defaults.
Settings > Device settings > Software Update

With Check for New Version enabled you are notified in the web user interface if there is an update
available.

You need to be in the Connected state to download new versions.

Press the Update Now button to see if there are software updates for your device.

Updates are disabled by default when roaming to minimize unwanted data charges. Check the Roaming box
to enable updates when roaming.

Press the Help icon
to get in context tips
to get in context tips
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