It is really recommend updating your Nokia firmware to the latest version. Each new firmware usually contains bug fixes, new applications, make your Nokia runs faster, and many more.

Check for latest firmware version

1. To check whether you are using the latest firmware, you need to enter *#0000# from the keypad.
2. Then it will display what version you are using and the release date of the firmware. Eg: 4.0736.3.2.1
3. Open up the back case and pull out the battery. We are looking for product code that we need to check for latest firmware. You will see the product code on the white label sticker on it. Eg: 0539343. Note it down.
4. Go to this page, enter the product code and hit Go. It will display latest version based from the product code given.
5. If new version is available, you can update your firmware through the Nokia Software Updater.

Update your firmware

1. Once you know that new version is available, download and install Nokia Software Updater if you not have it installed.
2. Plug in the Nokia cable to your phone and connect it to available USB port.
3. Make sure that your computer is connected to the Internet and run Nokia Software Updater.
4. Nokia Software Updater will check whether new firmware is available. If your current firmware version is older than the new version, it will ask you to update your firmware.
5. But take note, make sure that you already backup all your settings and files because when we are talking about upgrading firmware, we are actually will format the phone. So make sure you have already done the backup.
6. Then, follow the instructions and Nokia Software Updater will download the latest firmware version and will install it to your phone once it is finished.
7. While the phone is being upgraded, you will see that the phone display goes to blank. It is normal. Don’t feel scared or shocked.
8. If everything is fine, your phone will be rebooted and you will see Nokia logo at the splash screen. But if something goes wrong, don’t worry, just go back to step 1.

So far, I have not encountered any problem when doing the firmware update. Everything is smooth and fast. If you need more information, you can visit Nokia Software Update FAQ page.