In an earlier post I described Dr.Web method to hack Symbian phones. However that method requires a computer to work and is not working in Symbian Belle, so here are three other similar hacking methods (to hack Symbian S60v3, S60v5, S^3, Anna and Belle phones) that require no PC connectivity. Try, which one works for you –
1. Symbian hacking with Norton Anti Virus app –
Download Norton Antivirus app from here and install in your phone.
Launch the app and go to “Options/Antivirus/Quarantine list”. Now restore all the three files one by one via “Options/Restore”. Confirm the action and wait for the process to complete (Quarantine will become empty when the process completes). Exit Norton app and uninstall it.
Now download and install ROM Patcher+ in your phone from