Navifirm is a software for downloading Nokia mobile phone's firmware images. This software was developed by EPICBIZNUS, and then other developers improved this tool. Features: downloading Nokia firmware files and listing, checking and finding the product code for mobile device. Navifirm connects directly to Nokia firmware support servers, so it has the most recent firmware updates.
Before unlocking your phone must be rooted and enable usb debuing mode on in settings. Click on samsung module and select model and tick the option of adb unlock and finally select run.Finally u r S3 will be unlocked Thanks to Volcano Team.
3. When ask select the path to the Req.fbi in unzipd downloaded folder
3. Now open the Twister Activator & Req 2 Fbi in downloded folder and open Twister Activator & Req 2 Fbi and select the xxx.req in following location. xxx is your serial nubeer of the box
C:\Program Files\SarasSoft\UFS\ UpdateClient
4. Click convert and go to again
C:\Program Files\SarasSoft\UFS\UpdateClient then you would see
000xxx.fbi
5. Then select this file as the firmware file to upgrade the firmware in HWK upstate client