You can update your Nokia E5 firmware over OTA (Over-The-Air) or by using Windows PC applications Nokia’s Software Updater or Ovi Suite . The Nokia E5 does have UDP (User Data Preservation), but its always good idea to backup all of your personal data before updating the device firmware.
Nokia E5 Chnagelog:
- Great new features
- Updated applications
- Performance improvements
Note: It may take some time before the new firmware is available for your region.