Procedure:
Open Qualcom Tool..
Then Use Cable E210..
Connect Usb and Rj45..
check box (use 2in1 cable)
tick unlock sp
done
-----------------------------
Model: A737UCHD2
CountryCode: ATT
Factory SW: A737UCHD2
UniqueNumber: 00040000043908
MemoryPhone: K5D1G13DCM(A737)
IMEI: 35409402166443/3
Phone S/N: RPJQ571394
Build: M6260A-KYRZ-2.1.300612_1R
Reading SysInfo... OK
Calculating... OK
Searching Samsung USB interface... not found
Unlocking... OK (time - 00:00:03)
Done with Samsung 3G tool ver 8.7.1
Open Qualcom Tool..
Then Use Cable E210..
Connect Usb and Rj45..
check box (use 2in1 cable)
tick unlock sp
done
-----------------------------
Model: A737UCHD2
CountryCode: ATT
Factory SW: A737UCHD2
UniqueNumber: 00040000043908
MemoryPhone: K5D1G13DCM(A737)
IMEI: 35409402166443/3
Phone S/N: RPJQ571394
Build: M6260A-KYRZ-2.1.300612_1R
Reading SysInfo... OK
Calculating... OK
Searching Samsung USB interface... not found
Unlocking... OK (time - 00:00:03)
Done with Samsung 3G tool ver 8.7.1