New SIM card # invalid

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  • Updated 4 years ago
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I bought a Micro-Sim card awhile back in 2013 for my nexus 5. I used it for a month and went back to my old phone which uses a Mini-Sim. Back then I was able to change the sim card with self-serve. But now I cannot switch back to my Micro-Sim and self-serve saying my # is invalid. Any idea what is going on and how to fix?
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E Hua Lin

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Posted 4 years ago

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Sophia, Mobile Master

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You can't reuse an old SIM, you will need to purchase a new micro SIM and activate that instead :)
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Rachelle Wiebe

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I purchased a new SIM but says it is invalid

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