PROBLEM:
>Lock to SUN and Need to unlock




PROCEDURE:
1.Download This Root file first here the link...universal_gb_root_v19.zip
2.Copy to memory card SD
3.Press POWER+VOLUME UP+HOME BUTTON.
4.After select UPDATE ZIP
5.and reboot system phone already root
6.Open Samsung tool 3G
7.Select Model B5510
8. Power on phone.
9. Enable debugging on: menu>application settings>development..
10. Connect cables and setup drivers.
11. Press Unlock button.
SCREENSHOTS:






DONE....>
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>Lock to SUN and Need to unlock




PROCEDURE:
1.Download This Root file first here the link...universal_gb_root_v19.zip
2.Copy to memory card SD
3.Press POWER+VOLUME UP+HOME BUTTON.
4.After select UPDATE ZIP
5.and reboot system phone already root
6.Open Samsung tool 3G
7.Select Model B5510
8. Power on phone.
9. Enable debugging on: menu>application settings>development..
10. Connect cables and setup drivers.
11. Press Unlock button.
SCREENSHOTS:






DONE....>