Unlocking Samsung Galaxy S3 T989 using Octupos Box is as easy as eating ice cream :) Although this Android Smart Phone is also supproted by Z3X box. The procedures are as follows:
1. Go to Menu->Settings->Applications->Development. Turn on "USB Debugging" option.
2. When message is appear press "Yes". Go to dial window.
3 .Enter "*#7284#" number. Set "USB" radio button to "Modem" value.
4. Close window. Go to dial window.
5. Enter "*#9090#" number. Set "Diag config" to "USB" value.
6. Restart phone.
7. Insert micro usb cable and install divers needed. Note if drivers are not properly installed the unit can not be detected by Octopus Box. So be sure that all the drivers are properly installed.
8 .Open Octouos for Samsung.
9. On Samsung Qualcom tab, select model T989.
10. Select proper com port. Then click Read Info .
11. Then click Unlock and wait until finish.
Here is the software logs given by Octopus Box:
Platform: Samsung Android
Selected port: COM79
Selected model: SGH-T989
Mode: Normal
Phone model: SGH-T989
Firmware compiled date: Sep 09 2011
Firmware compiled time: 17:00:00
Firmware released date: Jan 14 2013
Firmware released time: 11:32:24
Phone IMEI: 359605-04-225882-5
SW version: M9200B-SCAQCSZD-3.0.552092
-----------------------------------------------------------------------------------
Platform: Samsung Android
Selected port: COM79
Selected model: SGH-T989
Mode: Normal
Phone model: SGH-T989
Firmware compiled date: Sep 09 2011
Firmware compiled time: 17:00:00
Firmware released date: Jan 14 2013
Firmware released time: 11:32:24
Phone IMEI: 359605-04-225882-5
SW version: M9200B-SCAQCSZD-3.0.552092
Unlocking phone...
Phone is successfully unlocked
To finish the operation, please restart the phone via phone's menu
(don't disconnect the battery!)