Another a797 succeccfully unlock
PROCEDURE
use micro usb
connect phone to pc, install drivers..
disconnect phone then power off..
click unlock sp, on the phone press 1+message key and connect phone to usb wait until software detect the unit then release the 1 and message key..
wait for the unlock codes to calculate

Press 1 + message key and connect phone by cable
Waiting for SE USB Device... not found
Done with Samsung 3G tool ver 8.6
Press 1 + message key and connect phone by cable
Waiting for SE USB Device... OK
Detected:\\?\usb#vid_0bdb&pid_100e#5&11ffcb6b&1&3# {a5dcbf10-6530-11d2-901f-00c04fb951ed}
Opening Port... OK
Flash ID 900
Protocol:0401
Sending Loader 1... OK
Sending Loader 2... OK
Sending Loader 3... OK
Sending Loader 4... OK
Reading Data... OK
Calculating stage 1... OK
Calculating stage 2... OK
Calculating codes... OK (time - 00:00:30)
Freeze code: 74615251
NET lock: #7465625*638*60975292#
Sub lock: #7465625*782*00000000#
SP lock: #7465625*77*00000000#
CP lock: #7465625*27*00000000#
For check lock status: *#7465625#
Done with Samsung 3G tool ver 8.6
use micro usb
connect phone to pc, install drivers..
disconnect phone then power off..
click unlock sp, on the phone press 1+message key and connect phone to usb wait until software detect the unit then release the 1 and message key..
wait for the unlock codes to calculate

Press 1 + message key and connect phone by cable
Waiting for SE USB Device... not found
Done with Samsung 3G tool ver 8.6
Press 1 + message key and connect phone by cable
Waiting for SE USB Device... OK
Detected:\\?\usb#vid_0bdb&pid_100e#5&11ffcb6b&1&3# {a5dcbf10-6530-11d2-901f-00c04fb951ed}
Opening Port... OK
Flash ID 900
Protocol:0401
Sending Loader 1... OK
Sending Loader 2... OK
Sending Loader 3... OK
Sending Loader 4... OK
Reading Data... OK
Calculating stage 1... OK
Calculating stage 2... OK
Calculating codes... OK (time - 00:00:30)
Freeze code: 74615251
NET lock: #7465625*638*60975292#
Sub lock: #7465625*782*00000000#
SP lock: #7465625*77*00000000#
CP lock: #7465625*27*00000000#
For check lock status: *#7465625#
Done with Samsung 3G tool ver 8.6