Probably got a bad unit
22 March, 2015
I bought this to replace what I thought was an identical Samsung branded unit that failed after 4 or 5 years. It turned out that it was a unit branded for the Japanese market as a Docomo phone, which I was not expecting. Out of the box the basic phone and text functions worked, but 1) it would not permit an upgrade to Android 4.x, as my older unit had, 2) the FM radio did not work, and 3) the WiFi kept dropping. The sellers were accommodating, however, and, after a couple of tech suggestions failed, accepted a return for a prompt full refund.