回複：Ask 8 Laoshi: once EB based 485 gets approved, does family ba

needs to be withdrew? If yes then when and how to withdraw it?
-It is not necessary, but you had better write a letter to withdraw it so that USCIS will not waste their resources to process your case (they will deny your family-based case eventually after they process this case). Include the copy of your case filing receipt with the withdrawal request.
 

Similarly, does EAD combo renewal needs to be withdrew? If yes then how to do it?
-Do nothing or write a letter to withdraw it.
 

Thanks!