1. Official stock ROM, you can download it at http://www.samsdroid.com or you can searching at google.com and search rom release for your country. ( My Stock ROM : S5660DXKT4_S5660OLBKT4_S5660DXKT4_HOME.tar.md5 )
2. Odin multi downloader, can be download here
3. *.ops file, can be download here (i use GIO_v1.0.ops)
4. samsung kies or samsung usb driver
Step :
1. Open your odin multi downloader 4.42.
2. Look on screenshot
a. Choose ops file that fit to your phone, for my phone is GIO_v1.0
b. pick one package
c. choose your's rom file and wait until left column message show OK
4. remove your sdcard --> must do
5. reboot or shutdown your phone
6. turn on with press home button+volumedown+power button
7. wait until your phone screen show message "Downloading..."
8. plug in your phone to your computer and wait until odin multi downloader detect it. (Show on message box)
9. Just press start button on odin multi downloader
10. wait until message box show finished, unplug your phone and try restarting it.
This tutorial same as flashing your phone, i use this method after my samsung galaxy gio experience boot loop (stuck at samsung logo)
if you success do this tutorial that mean you ready to make your samsung galaxy more smarter handphone.
hope this tutorial usefull
