I just installed the FW 9.50 release on my 1030. Now, when I connect the 1030 to my PC and and start GE, GE says that the 1030 is up to date with 9.10. GE 6.21 on Win10 x64. Screenshots below:
I just completed the sequence you suggested. GE still thinks the 1030 is running 9.10 FW
Then I'm out of ideas.