I have newly gotten Nokia C-7 Symbian Anna which software version is 024.001 while its RM is 675 and product code is 059H0B6.

I want to cook my own firmware and further to want it flash with Belle leaked version but the problem which I am facing, is that Navifirm+ is showing my product code in RM-691 instead of RM-675 and also showing two software versions 20.37 and 24.2 but as I have earlier mentioned my present software version is 024.001.

I have also searched the forum for this issue but donot find its solution.

Please guide and help me that what should be done in such situation?