Is it possible to transfer all of the data from my AT&T SIM card to my Cingular SIM card without involving Cingular? I'm moving from a 32K AT&T SIM to a 64K Cingular SIM.

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  Can you tell me how to activate an AT&T prepaid sim card when the AT&T website doesn't want the "@" in my activation email address ?
  by Ginie on April 14th, 2010 | 1 person likes this

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  Can I sell a used T-Mobile phone with a new unregistered SIM without having problems on my end? It won't deactivate my old one, will it?
  by strawberry921 on June 26th, 2010 | 1 person likes this

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  i bought a dual sim unlocked phone from china invalid sim being displayed i bought 2 the other is fine what do i do without sending back
  by Shirley_B6918 on July 20th, 2011 | 1 person likes this

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  My phones keeps saying 'insert sim card' but it is already in and my carrier is AT&T, What do I do??? I neeeddd helppp!!
  by chasiidy on January 11th, 2011 | 1 person likes this

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  I have an old T-Mobile phone which has been off for years. I forgot the sim card password, anyone know a way to bypass the password?
  by ConservativelyLiberal on August 26th, 2010 | 1 person likes this

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