This is the information being passed to at&t employees and is not proprietary information (hence why Im posting it)
"Next Generation SIM card for 4G devices now available The new SIM card for 4G LTE devices is available for ordering in the COU system. While this SIM is required for 4G LTE devices, it is also compatible with 3G devices and COU will be shipping the 4G LTE SIM with every device make and model going forward (with exception to iPhone 4/iPad 3G +WiFi).
The new SIM (SKU 73057) includes enhancements that will enable functionality for LTE capable devices when supported by the network."
So, I do suggest that if you have one of the older sims and have an Inspire or Atrix to go to your local at&t corporate store and have them change it to the new model number. Originally we were told that these were only replacing the older models and to use them in the new 4g phones. Now we are being told it is a requirement.
Also, make sure its a corporate store (they are free there) and not third party places such as Radio Shack, BB, Walmart as all of them may charge a fee up to $25 for a new sim.
"Next Generation SIM card for 4G devices now available The new SIM card for 4G LTE devices is available for ordering in the COU system. While this SIM is required for 4G LTE devices, it is also compatible with 3G devices and COU will be shipping the 4G LTE SIM with every device make and model going forward (with exception to iPhone 4/iPad 3G +WiFi).
The new SIM (SKU 73057) includes enhancements that will enable functionality for LTE capable devices when supported by the network."
So, I do suggest that if you have one of the older sims and have an Inspire or Atrix to go to your local at&t corporate store and have them change it to the new model number. Originally we were told that these were only replacing the older models and to use them in the new 4g phones. Now we are being told it is a requirement.
Also, make sure its a corporate store (they are free there) and not third party places such as Radio Shack, BB, Walmart as all of them may charge a fee up to $25 for a new sim.