I haven't had a chance to perform a manual update, but my upgrade from 9.34 to 9.51 seemed to work just fine.
Sunday, I knew that 9.52 was released and so I allowed the system to upgrade. After the V8 upgrade finished, the 9070 did it's standard versioning check and the V8 is stuck at 9.34. So it appears that it never actually upgraded to 9.51 or 9.52. Ran the upgrade again, it seemed to be successful, but again comes back up and 9.52.
It was late and dusty and windy so I gave up and figured I would deal with it later under better conditions.
I've pulled down the firmware independently from the wifi upgrade process and will give a manual upgrade a try. I haven't had this issue before
Morgan