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Old April 25th, 2012, 09:21 AM   #5 (permalink)
rui-no-onna
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Join Date: Jul 2011
Posts: 678
 
Device(s): TF700T, Nexus 7.2, Moto G, Xperia M, Xperia Acro S, Xperia Ray
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Quote:
Originally Posted by bethany66 View Post
So you say: "Xperia™ Pro sold in the US is not compatible with T-Mobile's 3G frequencies." Is that also true for AT&T frequencies? I bought an unlocked one and have not yet been able to get the data working. The phone works, and the data works via WiFi, but not via the cellular network.
Assuming you got the Xperia Pro MK16a (UMTS 850 / 1900 / 2100), AT&T 3G is supported. In order to get cellular data working, you need to manually input the APN. You also need to do this if you want to be able to send/receive MMS.

Go to Settings » Wireless & networks » Mobile networks » Access Point Names and create a new APN.

The following settings work for my Xperia Active:

Code:
Name: <anything you want>
APN: wap.cingular
Proxy: <Not set>
Port: <Not set>
Username: WAP@CINGULARGPRS.COM
Password: <Not set>
Server: cingulargprs.com
MMSC: http://mmsc.cingular.com
MMS proxy: <Not set>
MCC: 310
MNC: 410
Authentication type: <Not set>
APN type: default,suppl,mms
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bethany66 (April 25th, 2012)