I am getting calls going straight to voicemail with no missed calls on my phone, when I have full signal, so orange have (after a lot of calls) agreed to terminate my contract. I have to return my phone (shame I could not keep it for free!) and have rooted my phone, and installed the modaco rom. I want to return it with an orange rom, and was wondering if I can just install the updated orange rom on my phone over the top of the modaco, and has anyone done this successfully? From reading around I am assuming that this would hide the fact that I have ever rooted or installed a custom rom, as I want to be back on warranty?