This is the only 5128A firmware version I can find. I do not know if it is correct for you. Please check your existing version and satisfy yourself that it is correct before applying it. Nor can I tell if it will help you or not
Thanks chipseller,
At least is 6 months newer than the one I have (6/20/2012 vs 12/29/2011). I will give it a try.
You would expect that their website would be the best place to get the latest one, but could not find any.