ORBI Hardware Revisions

Can anyone offer information as to the REV. history of the ORBI units?  Is there any way to deterimine the REV. number from the S/N or the box label.  I REALLY liked the ORBI...when it worked.  I finally had to return my set, as it seemed to have "bricked".  Although there seem to have been interminable firmware editions, the units seem to STILL have the same problems...dropouts, lockups, etc.  I just noted in another thread that the USB2.0 ports are now functional...true?

ANYHOW, I was hoping to glean some information as to the internal board REV. # or the RBK-XX REV. #'s in hopes that some sort of catch-up might have been completed on this too-soon-released product.

IMNOONE