There may be others with the same issue with a solution elsewhere on this site, but this is the first thread I came across.

I am having the exact problem described above and have tried installing the update from App Manager and using OVI Suite and PC suite with no success.

Will have a read through the other threads and post back if I find the solution. I do know that you can 'flash' the phone as a workaround. Info on how to do this is in the main update thread.

Edit: This post was moved from another thread. I have now been able to update by disabling extras and other catalogues.

Thank you to Maemo.org site members for their help!