Keep in mind that the SIM cards for our devices are not the same as the universal SIM cards used for the unlocked phones. You can find details about the process of bringing your own device in this website http://boost.co/2pyP16x.
Please provide the actual exact model number that is compatible with your network. Purchased the US version unlocked model number
Also purchased BOOST MOBILE BYOB TRI BAND SIM CARD KIT SKU NUMBER
The retailer tried to activate it both online and with a rep from Boost and the Boost rep said the device was not compatible. According to Samsung all the devices include all the radios/frequencies for all carriers. No difference between carrier specific or unlocked. Only difference is carrier software. I was able to get a refund for the phone and Sim card kit.