This is the most reliable physical method. You will need a Phillips screwdriver and steady hands.
Here is a comprehensive guide (the "paper") regarding the Raysharp DVR password reset, focusing on the "TOP" algorithm method. raysharp+dvr+password+reset+top
If none of these work, you may need to contact the manufacturer or vendor directly. You can find technical documentation and contact details on the Raysharp Support Page Ray Sharp CCTV DVR Password Retrieval & Remote Root This is the most reliable physical method
