A warning and the solution! The above upgrade tool failed to identify the memory chip on my board but erased it anyway and then hung on writing rendering it useless.
After some research I was able to successfully upgrade after editing the SpiFlash.ini file with the parameters of the 25P10VP chip on my board.
I added the following:
21=25P10VP
[25P10VP]
FlashID = 202011
ReadID = 9F
WriteEnable = 06
WriteStatus = 01
ChipErase = C7
ReadData = 03
ReadStatus = 05
PageProgram = 02
ClockRate = 32
PageSize = 10
I can confirm you do appear to have to uninstall the Windows drivers to update and reboot after ISP update success before it works.
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