I just assumed it would void warranty. It would be nice to know if it does or not. I'm not sure what Benq thinks about it.
I finally had a chance to call Benq today. Called twice and spoke to two different reps...
The first rep said; "Flashing from "G" to "B" firmware will void the warranty."
I explained the first conversation to the second rep..
The second rep said; "Let me go get the official response."
I wait for a couple of minutes and he said; " Officially we don't support flashing from "G" to "B" firmware." --- "Unofficially, if the drive fails for mechanical reasons they will honor the warranty".