I also tried with the MB1 radios, the main issue for me is that the FiOS Mobile App freezes after ten minutes of play, this also happens with the MF1 radios "this has been an issue going back to RC4", and the camera has a slight delay after pressing the shutter button. There is no problem with the stock 4.1.2 Verizon ROM and VRBMF1 radios, everything works fine.
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