Nokia is aware that a software package for C6-00 has appeared on some third-party websites which is not approved by Nokia for distribution to the public.
We strongly advise you not to install any software that does not come directly from the usual Nokia channels because there is no way to know what you are getting. Installing any unapproved software will invalidate the warranty of your Nokia device.
Just to be clear, the software in question does not fix the issues discussed in the "C6-00 keeps hanging" thread and may even cause your phone further issues or permanent damage. We ask our users not to post links to any such software packages on this forum.