I have a Virgin Mobile Galaxy S3 SPH-L710. I am finding many custom ROMs for d2spr but few for d2vmu. I have tried to flash several of the more recent CM11 d2spr builds but the flash fails with these. Why is that being that it's the same model? Is there a way to unzip, modify, and repackage a d2spr ROM to appear as a d2vmu to my device? I was able to find a CM11 nightly build that was for d2vmu, however when I try to use the CM OTA update function to update it downloads a d2spr.