"Admiral Scheer" underwent a refit while her sister ships set out on commerce raiding operations in the Atlantic. "Admiral Scheer" was modified during the early months of 1940, including the installation of a new, raked clipper bow. The heavy command tower was replaced with a lighter structure, and she was reclassified as a heavy cruiser. Additional anti-aircraft guns were also installed, along with updated radar equipment. On 19–20 July RAF bombers attacked "Admiral Scheer" and the battleship , though they failed to score any hits. On 27 July, the ship was pronounced ready for service.