This is a tutorial i helped someone else with:
I think you already got the files, in case not download them again.
--WARNING-- Your phone must be charged to 90% or more, to prevent flash failure.
okay, put your phone in download mode. (power button, home button, and volume down button at same time) connect it to usb, and start odin.
Select ops file,
than select the boot file, named: APBOOT_S5570XXKPI_CL260130_REV02_user_low_true.tar.md5
Select Phone file: MODEM_S5570XXKPI_CL260130_REV02.tar.md5
The PDA file: CODE_S5570XXKPI_CL260130_REV02_user_low_true.tar.md5
and as last the CSC file: CSC_S5570SERKPI_CL260130_REV02_user_low_true.tar.md5
--MAKE SURE THIS IS RIGHT, AND ELSE YOUR PHONE CAN BE FATAL BRICKED!!!--
okay, all good?
right. click start.
wait till your phone reboots,
THEN, remove your usb cable.
and then the last part: Have fun!
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Files to download
http://www.mediafire.com/?zx83r9p30zqxd6r
Use a powerfull unzipper like 7-zip or winrar, windows explorer will take ages.[/QUOTE]
Hope it helped you.
Sent from my sending thing...