Procedure:
put the update zip in MMC root folder
then hold volume down+home button+power and the phone will turn on
just wait and click the update zip to be rooted so that you install super user icon
open samsung tool choose right model tick unlock the super user will pop up 3 times
Done like this...

Code:
Count supported models - 302 Searching Samsung USB Modem... Detected (COM37) Model: GT-S5360 SW: BCM21553_Modem_SI1220.2_V2.4 IMEI: 351824059984458 Done with Samsung Tool ver 12.2 Starting ADB Server... OK Checking ROOT... TRUE Reading Phone Info... OK Android Version: 2.3.6 Model: GT-S5360 Phone Version: S5360DXLA1 PDA Version: S5360DXLA1 CSC Version: S5360OLBLA1 IMEI: 351824059984458 Reading Data From Phone... OK Unlocking... OK Done with Samsung Tool ver 12.2
for newbie......
>-
put the update zip in MMC root folder
then hold volume down+home button+power and the phone will turn on
just wait and click the update zip to be rooted so that you install super user icon
open samsung tool choose right model tick unlock the super user will pop up 3 times
Done like this...

Code:
Count supported models - 302 Searching Samsung USB Modem... Detected (COM37) Model: GT-S5360 SW: BCM21553_Modem_SI1220.2_V2.4 IMEI: 351824059984458 Done with Samsung Tool ver 12.2 Starting ADB Server... OK Checking ROOT... TRUE Reading Phone Info... OK Android Version: 2.3.6 Model: GT-S5360 Phone Version: S5360DXLA1 PDA Version: S5360DXLA1 CSC Version: S5360OLBLA1 IMEI: 351824059984458 Reading Data From Phone... OK Unlocking... OK Done with Samsung Tool ver 12.2
for newbie......