with usb cable in downloading mode Default efs

Detect Phone Connect ...
Connect Phone OK.
Get PIT for Mapping ...
Sending EFS Data ...
Sending NV Rebuild 1 Data ...
Sending NV Rebuild 2 Data ...
Please Wait Reboot Phone ...
Update Flash OK!
Total Time: 11.68 s
with uart cable tick imei + unlock and then Factory mode

Please Wait Enter Test Mode ...
Enter Test Mode OK!
Model Name: SGH-I747
S/W Version: I747UCDMG2
Phone SN: 0000000000
IMEI: NG
Repair New IMEI: 353091054990512
MCK: 00000000
NCK: 00000000
SCK: 00000000
SPCK: 00000000
CPCK: 00000000
Exit Test Mode ....
All Jobs Done.
Total Time: 22.41