I filed my final LLC return for federal but did not file state because CA was not yet ready.experts told me that state would be available on Feb 24 but it's still not

Let's see if we can add a state to your business return using the instructions below. Note that you are NOT actually changing your return - you are simply opening your return again, so you have access to your entries.

•  Log into TurboTax Business Online using the same username and password as you did before.
•  Click on Tax Home from the menu on the left.
•  Scroll down and find Your tax returns & documents, 
•  Select the current tax year, then click on Add a State.
•  You now have access to your entire return. You may navigate using the tabs as you did while entering your information. Do NOT change anything on the federal return, in case you do actually need to amend your return.
• Click on State Taxes (Your State Returns) in the left menu.
• If your state is already listed, Continue and follow the interview. Otherwise, click "Add a State."

Post to this thread if you encounter any problems with this process.