i also replaced my cam on one of my n900s previously but the orignal module was better with slight diffrences in colour and contrast and i didnt use a module from n97 i brought a module with no labels anywhere but on the plastic pack it was mentioned n97 n 86 module i opted for that as i found the info on wiki that they are comptiable anyway more people should test out ther damaged n900s with diffrent modules to get a concrete answer . Also i damaged 1 module it woud not focus so anyone be careful its dedicate thing furthermore it should be like use a new module to replace and do not try to extract from a diffrent working device as chances of damaging the module is good.