This guide does not require any hard reset or 3 finger salute or delete any user data or any application install. it just require a active data connection.
For those who still not able to open their ovi store (any version). This will fix most of the issues.. I am posting a method which requires installation of 6-7files and a readme file accordin to that readme u've to install the files in order to minimise the problem afterwards.
pass : ucandoit
Please note that this is advising installing older version of Notifications Support Package Symbian3 v1.1.11106.sis than in this post from Community Manager which includes v1.1.11120:/t5/Ovi-com-Ovi-Store-Ovi-Share-and/Ovi-Store-Prob
Happy to have helped forum with a Support Ratio = 42.5