Change Master Code NSL20i-BK WiFi Slider Safe | Vaultek Support
Steps to Change the Master Code for your NSL20i(WIFI SLIDER) 1. Open the safe. With the safe open, press and hold the '1' key and "PROGRAM" button together (3 seconds) until all keys(1-5) turn RED and let go. 2. Enter your NEW master code. 3. IMMEDIATELY! Press and hold the '1' key and "PROGRAM" button …
