Most HTC phones are able to detect which mobile operator you're using based on the SIM card you inserted, and then use the preset Access Point Name (APN) to connect to your mobile operator's data network.
You can add a new (APN) when roaming or if you have difficulty establishing a data connection.
Important: Some mobile operators may not allow you to change the predefined APN or add new ones.
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Do one of the following:
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If the data connection is off, tap the
On/Off switch next to
Mobile data to turn it on.
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Tap
.
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Tap
Access point names.
Note: If your phone has two SIM cards, select a card first, and then tap
Access point names.
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On the
APNs screen, tap and enter the APN settings.
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Tap
and then select the new APN on the
APNs screen.