If I get a BlackJack2 and unlock to use on t-mobile, do I have to buy a data plan?

hmarie121196

New member
Okay, so for Christmas I'd like a new phone. I have T-Mobile, and I'll be honest, I really don't like their phones. I found out that you can get phones "unlocked/flashed" to use on other services. So if I buy a BlackJack2 unlocked:
1.) do I need to pay for internet (data plan) on the phone?
2.) do I have to call T-Mobile and tell them I got this phone?
Thanks so much already,(:
i mean do i have to buy internet if i don't want it on that phone.
 
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