Are you using a Tmobile 9700? If you use an unlocked 9700 or use an unlocked AT&T 9700; it will not have the 3G bands for T-mobile. AT&T and T-mobile use different 3G bands but the same Edge bands. Thus a device can always dump down to Edge speeds if it's unlocked.
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Originally Posted by jaz0305
tmobile 3g just sucks, my wife's BB9700 flies on at&t while my BB9700 on tmobile is super slow, may be slower than edge sometimes.
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