Can I install 4G Roms on a non-4G Atrix?

Hey people,



I have a brazilian's Atrix, and it doesn't have 4G, and I need to install android 4.0.3 on it,

can I install the ROMs available on this forum or will it brick the device?

Is there I non-4G Atrix subforum (searched for it but couldn't find).



Thanks in advance.

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