I just wanted to share that I purchased an unlocked Samsung Galaxy Not 9 for my husband from Best Buy and I was able to get it on Boost for him. DON'T let any store reps or phone reps tell you other wise. Just follow the swap phone process. You will also need to purchase the right SIM card for the device. which only cost me $10 from Boost. I was able to do all of this on my own with no issues. Just be patient because Boost servers moves slow when going through this process. It took me a few times to get it through, but it worked.