So, I am using a Galaxy S4 right now. I just bought a Samsung Sidekick 4G off of Ebay to use. The only problem is that the Sidekick uses a mini SIM card, but my Galaxy S4 uses a micro SIM card, so it won't fit in the Sidekick. So could I take it to T-Mobile and get a SIM card for it and stay on my current plan or would I have to get a new data plan entirely? Thanks in advance:)
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T-Mobile: Can I get a SIM card for a different phone and stay on my current data plan?