Nokia C5 firmware updated to v71.005. Its previous software version was v62.001.

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You can update your Nokia C5 firmware over OTA (Over-The-Air) or by using Windows PCapplications  Nokia’s Software Updater or Ovi Suite. The Nokia C5 does have UDP (User Data Preservation), but its always good idea to backup all of your personal data before updating the device firmware.

Official Changelog:

• New, faster version of the web browser, including web search integrated into the web address field, and support for multiple windows
• Here and Now application, which provides you with timely information on your current location, including the weather forecast and details of local movies, restaurants, and events
• New emoticons and smileys in text and multimedia messages
• New versions of Maps, Ovi Store and Adobe Reader
• General performance and usability improvements
• Ovi Contacts removed

Note: It may take some time before the new firmware is available for your region.