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 :
- iOS (Apple)
- Bada (Samsung)
Now if you want to know the last version of firmware for your Samsung mobile(Android , Windows , Bada), do the following steps :
- Go to this link http://www.sammobile.com
- If you have not registered at this web site before click "Register for free!" and complete registration form.
- Click the " FIRMWARE" from menu
- Click the "FIRMWARES AND FILES"
- Choose Type , OS , Model , Country for your mobile
- Click "Send"
- 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.