Unable to route on 4 layers board

Hi newpic,

1. iit only route on top layer.

 It may be that you cannot connect to other layers without having vias defined. If you Mirror a component, can you then route on the bottom layer?

2. -Unable to fanout

As above, without vias defined I suspect you cannot create a fanout. As all my boards have vias defined, I can't try this.

3. -not vias

 Enter Constraint Manager and go to Physical domain > Physical Constraints > All Layers. You will see a column named Vias, which I suspect is blank. Double-click on the cell in the Vias column and the Edit Via List form will open where you can double-click a via in the left pane to move it to the right pane. When done, close CM and you should then be able to place a via you added to the Via List.

Once you get all these issues resolved, I suggest exploring the Working Layer mode which is now available in even the L license with 16.3. For more than 2 layers, I think it's definitely the way to go.

Yes, it is previously blank. Now I insert the "STANDARDVIA" which is a pad define by pcb editor into it and it still do the same thing. Which padstack do I need to add in there?

Ok, I got it. The .dra and .psm for STANDARDVIA are missing from the current directory.

After I insert insert the STANDARDVIA into the column, I have to make sure the psm and dra also in the same directory.

 Hi newpic,

Good news! So after adding a via in the Via List, all 3 problems are gone?