How to get into Recovery mode, Download Mode and RAMDUMP mode in Samsung Galaxy W?

I wanted to know about the Recovery mode, Download Mode and RAMDUMP mode of Samsung Galaxy W. can you tell me how can I do above mentioned thing? any comments on the above mentioned topic will be highly appreciated.

In order to get into recovery mode you will need to use below mentioned steps.
As the time of switching off your device you have to press following buttons together.

• Volume [+] button
• Power button
• Home button.

Release the above mentioned buttons as soon as it gets switched On.

You can use the above mentioned mode for following purposes.

• Restarting the system.
• Installation of updates such as themes, custom roms.
• You can delete all apps, data and system settings.
• It can be used to delete Delvik Cache and it will be helpful to resolve all the various kinds of errors.

To boot your device into Download Mode you should use to do the following.

1. Turn off your mobile phone.
   
2. You should press Volume down button, Home button and Power button together.
   
3. You will get a warning message on the phone and you will need to press Volume up button.
4. Your device will get enter into Download mode and it will show ‘Downloadin…’ on the screen.

I wanted to tell you that you can use the download mode to flash firmware and without making use of official method of Samsung Kies.

If you wanted to switch on your phone into RAMDUMP mode then you will need to perform following.

• You should turn off your mobile phone.
• Now you have to press and hold Power, Volume up, Volume down and Home button together.
• This will bring your phone into RAMDUMP mode.