Help with 2 problems re my CNC6040z please

Hey guys.

So I bought a used CNC6040z with a known issue, which i was hoping would be an easy fix but alas no.

So the first issue is the gentleman who owned it messed with the VFD settings and now needs resetting, the issue I have is the VFD unit itself won't actually let me change any of the settings or factory reset it,

I can cycle the Pxxx settings but it will not allow me to change any values.

The second issue is that it is a USB machine and for the life of me I cannot get Mach 3 to work with it (my other CNC is parallel on a seperate PC)

I downloaded the drivesrs (i hope thye was the correct ones) but nothing will function, it just stays in a permenant Estop mode

Any & all help would be greatly apprecaited.

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