After you file

@xmasbaby0

I am staring at turbotax 2021 amend instructions (wish I could include a snapshot.

 

It says to print and mail the federal amended return.  Then it asks to efile the amended state  return. 

 

You say "You cannot e-file a state return unless you first e-file a federal return and it has to be accepted. "

 

Can  you point to anywhere it says that for CA?  I looked and cannot find any restriction except that in CA, you MUST efile unless you have reasonable cause not to.