Thanks. I think I'll give that a try, but in store with my trade in phone. So when I get home I can just call Tmobile and say I don't want the plan but want to keep the phone, right? Will they still charge me that first month, or prorate the one day? I suppose if they charge me the trade in money from my phone will go towards that and I'll still get $150 from Samsung. I don't see anywhere on Samsung where they require you to have or keep service.
I'm not too worried about unlocking, unlock codes for non Apple phones are pretty easy but I'm using it on AT&T and from what I understand it doesn't have to be unlocked, am I wrong?
Well, when I bought my Galaxy S4 from t-mobile, I did it online. I'm not really sure how pushy the sales reps are in making sure I switch over my phone number or if they want to install the sim card in, I really didn't want to deal with that lol. But if they make you pay the first month service, and you cancel it within 15 days, they will refund you that money. I doubt Samsung will require you to have service. it seems that they mainly want you to pre order it and have it paid off if you're going to use it on another network.
Well, yes, it isn't very hard to get unlocked codes for Android phones. But if you are going to use that phone on AT&T, it will have to be unlocked, otherwise you will get a message once you put in the AT&T GSM card saying that the phone is locked. T-mobile will keep it locked to their network, same way as AT&T keeps it locked into their network until you use their services for 60 days, after which, they will unlock it.
All of this is going off my ordeal on July 2013 when I bought the T-Mobile Galaxy S4. I learned all those things. Not sure if things have drastically changed since then, just look into well. As long as you can easily get an unlocked code, you won't have an issue. On xda I also saw a way to unlock the GS4. I followed the steps, but I never found out if it unlocked the phone or not since I used Metro PCS and they use T-Mobile's network
Make sure both models have the same frequency bands too. A friend of mine bought an AT&T unlocked Galaxy S4 and ran it on T-Mobile. He wouldn't get such good service if he wasn't on a 4G LTE area. Might work different with AT&T or the Note 4 just includes all those bands.