I bought Blu Studio 5.0 k and a few days later I removed one on the 2 SIMs. I had in it because I wasn't using it but when I turned back on the phone it asked for my unlock code and a Privacy Password. I did not set any password other than the lock screen password and tried almost everything. Factory rest, place both SIMs, removed both, tried all default passwords I know (1111,1234,12345,0000,123456) and nothing worked. Can anyone help me?