How to flash Samsung Galaxy Y Duos GT S6102

My Phone is  Samsung Galaxy Y Duos GT S6102

I was "installed" my phone to several ROM, the last ROM I used is TechnoDuos, Once my Phone is going error and lagging so bad.

So then I have to install Stock Firmware again, and here's How to flash Samsung Galaxy Y Duos GT S6102 to it's Stock Firmware,

Necessary Downloads and Tools :

•  Samsung Kies
•  Stock Firmware + Odin v.3.07
•  Samsung USB Drive
•  Your Phone
•  USB Cable
•  Your PC or Laptop

After download those file, follow this step :

Your Phone :1. Make sure the battery of the device is charged more than 80 percent.

2. Make a backup of all your important data before following the guide.

3. The Galaxy Y duos should be factory unlocked and not locked to any particular carrier.

Your PC:

1. Install USB Drivers for Samsung Galaxy Y Duos on your computer. (Or samsung kies)

2. Enable USB Debugging Mode on the device by navigating to Settings >> Developer 
Options.

How To :

1. First extract the downloaded files on your desktop.
2. Now Reboot your device into Download Mode:

- Turn Off your phone.

- Press and Hold the Volume Down+Home+Power keys all together at the same time for a few seconds.

- Once you see the warning message, then just hit the Volume Up key and you’re done.

3. Next, Run the Odin application on your PC. I use Odin V3.07 by Manoranjan

4. While in Download Mode, Connect your Galaxy y duos to PC via the USB Cable and make sure you've successfully installed USB Drivers for your phone on PC.

5.Check that Odin has recognized your device. and the ID:COM port will either turn blue or yellow and you should also see an Added!! in the message section.

6. Also chek that the ‘Auto Reboot‘ and ‘F. Rest Time‘ and rest leave the default Odin settings.

7.Click on the PDA button and browse the Firmware update file.(if available)

8. Similar to that select Phone (modem) ,CSC .

And wait, if your Samsung Kies windows is still opened, Closed it. If You don't close it, com port in your Odin wont be detected.

9.After selecting the correct file (tar.md5) then hit START button and wait.

10. Finally you need to wait for Odin to completely flash the update file. As it completes, Odin will notify you via the PASS!! Message and your Galaxy y duos should automatically reboot.

11. If it does not reboot automatically reboot then go to recovery (vol. up+power+home)  mode and clear cache and wipe data. (this will usually happen)

12. If your phone again and again repeating samsung logo on it's screen, unplug the battery of your phone, and put it again, then restart. Congrats, your phone has finally on it's stock firmware again. Cheers ~!

That's it you have successfully flashed your samsung galaxy y duos.

Thankyou for TricksDroid