I have just received a replacement D3 and it had shipped with the 5.7.906 update. I was wondering if there was a way to root it and if ROMs that use the old BP tools and things like that, that prevent from downgrading. If so, can I install a ROM that uses the 5.7.906 system apps will install correctly and work. Currently I have not found or seen anyone with the fast boot /.XML/RSD lite files to restore it if anything goes wrong. I'm just worried that I won't be able to get back to stock if something goes wrong in the install process. Any help will be appreciated. Thank you in advance.