Default Help with SS on RAZR XT912

Went to install PAC-ROM on my buddies phone it isn't a maxx ran into a shortage of internal space keeping me from formatting a virtual ROM slot. There isn't much on the subject and this is not a problem I've ever encountered over countless devices. Do anyone have a solution I read nothing but negative things about bmm and I suppose if anyone knows an SD route which I can't imagine or a partitioning method please share.

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