Software update service for Nokia Belle and Symbian (S60) phones is discontinued at the end of December 2015. On selected Nokia Belle phones, you can still reinstall your phone software using Nokia Software Recovery Tool.
Nokia Belle range. For the list of supported phones, see.
How can I reinstall my phone software?
Note! Using Nokia Software Recovery Tool erases all personal content on your phone. If possible, create a backup of your phone’s content before starting the installation.
Step 1. Download and install Nokia Software Recovery Tool to your computer. If possible, make sure that your phone is fully charged.
Step 2. Start Nokia Software Recovery Tool, and connect your phone to your computer with a compatible USB cable. If prompted, select the correct USB mode on your phone: Nokia Suite or Modem (depending on the phone model).
Step 3. Follow the instructions shown on the tool. The latest version of your phone software will be installed, and your phone will restored back to the factory settings. This process may take some time depending on your internet connection, and you cannot use your phone during the installation.