Link
ithic.com
I've had a few units, two maybe in the last few weeks, that stopped during the loading of SZ1.52. Some of the units I had sitting around had an older firmware, so I like to test things out and load the new one. I haven't noticed any issues on the dozen or so 1GHz I recently shipped. I didn't have to load SZ1.52 as I'm guessing it was loaded by Askarus or GC during testing.