How To Find Last Version Of Firmware(O.S) For Your Samsung Mobile

There are many Operating Systems (O.S) for mobiles which is called "Firmware" too , if  we say about smart phones then the most popular O.S are :

1. iOS (Apple)
2. Android(Google)
3. Windows(Microsoft)
4. BlackBerry
5. Symbian(Nokia)
6. Bada (Samsung)

Now if you want to know the last version of firmware for your Samsung mobile(Android , Windows , Bada), do the following steps :

1. Go to this link  http://www.sammobile.com
2. If you have not registered at this web site before click "Register for free!" and complete registration form. 
3. Click the " FIRMWARE" from menu
4. Click the "FIRMWARES AND FILES"
5. Choose Type  , OS  , Model ,  Country for your mobile
6. Click "Send"
7. Now you can see more details for firmwares for your mobiles as showing at this image :
   

you can download any firmware and install it in your mobile after reading tutorial for installation process

but I prefer to use Samsung Kies for upgrade your mobile firmware.