You can if you want, but you may want to replace the SIM anyway. SIM only last a certain amount of time and then they start to fail. A new SIM is probably best.
Leave the new SIM card in iPhone 6, turn off old iPhone 5, call 1-866-895-1099, or go online and visit att.com/Activations. If you still having problems, go to a AT&T Corporate Store to help activate SIM card. I had similar problem, apparently the new SIM card was not activated, ( I know confusing) but rep at Corporate Store used a hand held device, flashed some light from it to new SIM card, reinstalled SIM to my iPhone 6, problem solved, phone works!😃
kdfederer
ACE - Expert
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13.1K Messages
9 years ago
You can if you want, but you may want to replace the SIM anyway. SIM only last a certain amount of time and then they start to fail. A new SIM is probably best.
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Moeveo
Tutor
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6 Messages
9 years ago
Not sure if the activation was complete.
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Monica
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sandblaster
ACE - Expert
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64.7K Messages
9 years ago
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Moeveo
Tutor
•
6 Messages
9 years ago
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Have a Good One
Monica
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sandblaster
ACE - Expert
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64.7K Messages
9 years ago
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Moeveo
Tutor
•
6 Messages
9 years ago
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Have a Good One
Monica
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Moeveo
Tutor
•
6 Messages
9 years ago
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Have a Good One
Monica
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kdfederer
ACE - Expert
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13.1K Messages
9 years ago
Did you activate the SIM? It doesn't come activated.
AT&T activatiions
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Moeveo
Tutor
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6 Messages
9 years ago
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Monica
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MR_SMiT
ACE - Professor
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1.8K Messages
9 years ago
How do you activate it?
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Have a Good One
Monica
Leave the new SIM card in iPhone 6, turn off old iPhone 5, call 1-866-895-1099, or go online and visit att.com/Activations. If you still having problems, go to a AT&T Corporate Store to help activate SIM card. I had similar problem, apparently the new SIM card was not activated, ( I know confusing) but rep at Corporate Store used a hand held device, flashed some light from it to new SIM card, reinstalled SIM to my iPhone 6, problem solved, phone works!😃
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