I bought the Cricket version (RM-1150) a week ago. It comes with 01078.00036.16035.40009 and there is no update available. Cricket support "is not aware of any plan to update the firmware."
They recommended a factory reset which I did. I'll see whether WiFi is still up tomorrow.
I don't know if I will be made whole - this is a major defect. They have a warranty but replacing the unit will do nothing since it's an inherent flaw. And there is a $25 fee on returns (that's 50% of what I paid).
I thought this would be an upgrade from the 635 and it was in terms of the screen. The WiFi disconnect is unacceptable.
Y