Universal Gingerbread Root. Supported Modes:
GT-S5570, GT-S5570B, GT-S5570I, GT-S5570L, GT-S5571 (new), GT-S5660, GT-S5660M, GT-S5660L, GT-S5660V, SHW-M290K (Korean GIO), GT-S5670, GT-S5670B, GT-S5670L, GT-S5830, GT-S5830B, GT-S5830C ,GT-S5830D, GT-S5830i, GT-S5830L, GT-S5830M, GT-S5830T (new) , GT-S5830Z (new), GT-S5839i (new) GT-B7510, GT-B7510B, GT-B7510L, GT-B7800, GT-B5510, GT-B5510B, GT-B5510L, GT-B5512, GT-B5512B. GT-S6102, GT-S6102B (new) , GT-S5300, GT-S5360, GT-S5360B (new), GT-S5360L, GT-S5360T, GT-S5363, GT-S5369, GT-S5690, GT-S5690M (new) GT-S5690L, GT-I8150, GT-I8150B, GT-I5510, GT-I5510B, GT-I5510L, GT-I5510M, GT-I5510T.
[Step:]
1.First enable Unknown sources on your phone (Settings -> Applications -> Unknown sources)
2.Download the
universal_gb_root_v20.zip file and put in your SD card
3.Enter in recovery mode,almost all phone enter recovery with vol up+Power.
4.choose "apply update from sdcard"
5.choose the universal_gb_root_v20.zip
6.You will see a message "Install form sdcard complete".
7.Then press on the "reboot system now"
8.When you open SuperSU it will ask you to upgrade the SU binary just press continue your phone will reboot once and you are done!
Thanks to StoneBoyTony for this great info