I need help with a fanuc 0i-m.

Parameters are missing, ladder seems intact but won't start.

I have a PC with com port but can't upload or download. I think it's because it's stuck in mdi mode. Nothing happens when I turn the knob to edit mode. I guess because the ladder ain't running?

I also have a CF card with fanuc adapter plugged in to the controller. I can upload to the card but not download to the machine in the menu (from the right arrow + key next to it on powerup menu).

I have read instructions about changing parameter 20 to 4 to upload from memory card but only 0-2 is available on the machine.

I have all parameters on file but can't upload them.

Help needed!

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