So I finally got around to updating the firmware on my SMH-5. If you have a Mac and have been trying to update yours, I highly recommend finding someone with Winblows. My husband and I tried at least 10 times to update it using the Mac software and couldn't get it to work. I rarely use my VMWare machine so it didn't occur to me to try that.
So I downloaded the PC version and voila, it worked the first time. Sena, you need to fix your Device Manager for Mac software!