| | Congestion Issue? Upgraded Sprint 9650 to OS 6, using AT&T Sim Card
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I recently updated my 9650 to OS 6. I am using a AT&T Sim card in a Sprint 9650. Before the update everything worked fine. Now I can only text. Whenever I try to place a call I get "Congestion" on the screen. Inbound calls go directly to voicemail.
Can someone help me?
Ive been on Google for hours trying to find a fix for this