Blackberry 8520 Turn off data service, About roaming, Switch wireless networks manually

User Guide Turn off data service

6.Press the Menu key.

7.Click Delete.

8.Press the Menu key.

9.Click Save.

Turn off data service

Depending on your wireless service plan, you might be able to turn off data service (email, PIN and MMS messages, and browser service) on your BlackBerry® device so that only phone and SMS text messaging services are available. For more information, contact your wireless service provider.

1.On the Home screen, click the Options icon.

2.Click Mobile Network.

3.Perform one of the following actions:

•To turn off data service, change the Data Services field to Off.

•To turn off data service when roaming, change the Data Services field to Off When Roaming.

4.Press the Menu key.

5.Click Save.

About roaming

In most cases, your BlackBerry® device automatically connects to an appropriate wireless network when you travel outside your wireless service provider's wireless coverage area. If your device requires a SIM card, your wireless service provider might have to set up your SIM card for roaming services before you can use a different wireless network.

An indicator appears on your device to let you know that you are roaming outside of your wireless service provider's wireless coverage area. You might also have to provide login information before you can access the wireless network. For more information about roaming, contact your wireless service provider.

Switch wireless networks manually

To perform this task, your wireless service plan must include this service and your BlackBerry® device must be connected to a GSM® or UMTS network.

Your device is designed to switch to an appropriate wireless network automatically when you travel.

1.On the Home screen, click the Options icon.

2.Click Mobile Network.

3.Change the Network Selection Mode field to Manual.

4.Click Scan for Available Networks.

5.Click a wireless network.

6.Click Select Network.

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