Corrected W2 Box 1 and 2 are empty. Do I keep the original W2 info for Box 1 and Box 2 and just update Boxes 3, 4, 5, and 6 that are on the corrected W2?.

Corrected W2 has changes to Boxes 3, 4, 5 and 6.  The corrected W2 has blanks for Boxes 1 and 2.  Do I keep the amounts from the Original W2 for Boxes 1 and 2?   If the Fed and State Taxes Owed/Refund are both $0, do I still need to file the Amended Return?