Reinsert the battery and power on. The date should reset to a factory default (e.g., 2000-01-01 ), allowing you to use a date-based password generator.
If you can tell me the of your Multistar DVR and the current date shown on the screen , I can help you narrow down the best, most direct method to reset it. how to reset multistar dvr password full
The tool will output a temporary 6-digit or 4-digit master password. Reinsert the battery and power on