Finally had some free time to post about this, i guess it'll make symbian owners who can't generate certificates happy !

1. install NortonSymbianHack.sisx
2. Launch
3. Go Options- Anti-Virus - Quarantine list
4. Go Options - Restore, accept prompt ("yes")
5. Exit application, delete it from App manager (Symantec Symbian Hack). Also delete c:\shared\ folder.
6. Install RomPatcherPlus_3.1.sisx
7. Launch and apply patches:
- Open4all for full access to file system
- Installserver for installing any unsigned applications ( if you see a red cross on installserver in RomPatcher then get installserver.exe* and move it to C:/sys/bin via x-plore file manager for example)
- Set patches to auto if needed (Options - Add to auto)

* Select the file corresponding to your model (see the *.txt file on the attachment)


All credits to CODeRUS !