No sim

[Imogen1]

Hello I’ve upgraded my phone from the 12 to 13 pro but the new phone didn’t come with a new 5G sim so I’ve put my old sim in my new phone is that still okay?

[Bambino · Accepted solution]

@Imogen1 Yes it's fine to use your old sim. You only need a 5G sim if you want to take advantage of the 5G service. You can call in store, if you have one nearby (bring ID with you), and they'll swap your old sim for a new one, or contact customer service and they'll send you a sim and you can do the swap yourself: SIM Swap: a mini guide (incl eSim) - O2 Community

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