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You can not flash the firmware on your AC10 to a modern revision. The major and minor revisions of firmware are hardware dependent.
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AC10 Frames 1-5 firmware: 2.x
AC10 Frames 6-12 firmware: 3.x
AC10 IP66 All Frames firmware: 4.x
...
...
You can not flash the firmware on your AC10 to a modern revision. The major and minor revisions of firmware are hardware dependent.
...
AC10 Frames 1-5 firmware: 2.x
AC10 Frames 6-12 firmware: 3.x
AC10 IP66 All Frames firmware: 4.x
...