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You can deactivate data connections. Only text messages and calls are then available. This is useful if you want to avoid unintended data traffic. Follow these instructions to activate or deactivate data connections.
1. Find "Settings"
Press the Menu key.
2. Activate or deactivate
Press Data use in home network.
Press Automatic, Always ask or WLAN only.
Press the Menu key to return to standby mode.