torpedo Zaunkoenig T-5, until February 1943. She was then reconfigured (main gun removed, flak gun added) and in June 1943 transferred to the 2nd flotilla "Saltzwedel". May 1944 U-534 headed for Bergen and arrived on 6 May 1944. Two days later she left on operational duty, along with and , for weather reporting duty off the coast of Greenland. Her first war patrol was plagued by an oil leak and bad weather in the North Atlantic. August 1944 On 11 August she was attacked by an aircraft but escaped undamaged. Two days later, she, along with and , was attacked by two Halifax bombers. The aircraft, E of No. 58 Squadron RAF and K of No. 502 Squadron RAF suffered heavy flak damage. U-534 arrived safely in Bordeaux, where she was fitted with a Schnorchel. On the second patrol, from 25 August 1944 to 24 October, the boat had to escape the Allied blockade of Lorient in France and get back to a friendly port. On 25 August U-534 left Bordeaux and the new Schnorchel was used for the first time. Exhaust gases leaked into the boat and several crew members collapsed. Surfacing for air, she was spotted and attacked by a Wellington bomber, B of No. 172 Squadron RAF, which her gunners shot down on 27 August. On 28 October, she arrived in Kiel where she was transferred to the 33rd U-boat Flotilla and underwent an extensive refit in Stettin, which put her out of action until 1 May 1945. May 1945 In the early hours of 5 May 1945, a partial surrender ordered by Admiral Dönitz of German forces in Denmark, Germany and other areas came into effect. U-534 was informed by the harbour master at Oresund Elsinore that the ceasefire was in effect south of the 56th parallel. Incidents leading to sinking On 5 May 1945, U-534 was north of the 56th parallel, and Nollau decided to form a convoy with two Type XXI U-boats, and , and continue sailing north on the surface of the Kattegat sea in an area too shallow for crash diving, when two British RAF Liberator aircraft attacked (G/86 'George' from Tain and E/547 'Edward' from Leuchars). The crew managed to shoot one bomber down, and nine depth charges from the bombing runs missed, but then the boat received a direct hit by a depth charge from G/86. U-534 began to take