I got really excited when I get this phone, it looked cool and sleek... BUT, guess what, it was locked and the default language on this phone was some type of Polish, Russian or some weird East European Language. This made me believe that this phone was stolen by a clerk working for a Russian T-Mobile service provider or some East European National Wireless provider... anyway, I figured out to switch it back to English, to my dismay, the phone is LOCKED and can NOT work on US service providers.
... so I called my provider (T-Mobile) hoping to get help... after 30 minutes of being on-hold, the T-Mobile folks did not recognize the iemei number on the phone (it's Russian); and could not help me. They suggested that I call Samsung. 45 minutes of wait, someone sends me to an online web site where they have instructions to download a bunch of software.
I follow the instruction, I plug the phone onto a USB connector, then download various files, pay $19.95 to European SIM unlocking services, then another $14.95 to make it work on US providers, then I paid $4.95 to make sure that the phone is NOT black-listed... I still can't make it work. I wasted about 8 hours on this piece of junk.
I am returning it... don't make the same mistake if you are a busy person and value your time.