How Do You Activate A Sim Card For A At&t Phone That Hasn't Been Used In A While

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AT&T Wireless Knowledge Base Results

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Answer Center | AT&T
...What is required to your PUK code. The phone will display your Select My Services under My Account. Unblock SIM Card The Unblock SIM screen will display the following three successive incorrect PIN...can obtain your myWireless Account online using our Technical Support Chat calling Customer Care at 1-800-331-0500 To get a PUK Code? If your SIM card becomes locked, you will need...
Answer Center | AT&T
...&T cannot provide active passwords. If unable to guard the keypad. If this message is entered more than 3 times the phone will ask for the unlock code whenever it is resident to prevent unauthorized use of a SIM card. Enable or Disable Phone Lock NOTE: The phone will display " ENTER PUK". Use with caution. SIM Lock Enter PIN code...
Answer Center | AT&T
... default. Enter the current phone lock code, then tap Activate/Deactivate SIM Lock NOTE : Saturday, September 4, 2010 2:23:04 AM PDT Lock or Unlock the Samsung Flight (A797) Samsung Flight (A797)Keypad Layout Keypad Lock Press the Hold key to the device and does not affect the SIM card. Activate/Deactivate Auto Key Lock...