To open the SentrySafe X075: Enter the factory default code (1-7-5-0-0 followed by #) or your user-programmed code. If the code is correct, the green light will illuminate for 5 seconds. Turn the handle clockwise within this 5-second window to open the safe. If the green light stays on continuously, it may indicate an issue with the safe's electronics or a low battery. To resolve this: Replace the four AA batteries with fresh alkaline batteries (do not use rechargeable ones). If the issue persists, consult the user manual or contact SentrySafe customer service for further assistance.