I got same phone as well.
Its rooted,
\With UART cable it says "
Code:
Reading Phone Info... OK
IMEI: 000000000000000
Reading Security... Error
Done with Samsung Tool ver 12.6
with USB Cable it just read phone info, but doesn't detect it to unlock
Code:
Searching Samsung USB Modem... Detected (COM212)
Model: SAMSUNG-SGH-I747
IMEI: I747UCLEM
Done with Samsung Tool ver 12.6
LITTLE MASTER