A: admin / 12345 / 666666 — but most require a new password on first use.
If the software methods fail (e.g., the DVR is frozen, or the firmware is corrupted), you can perform a hardware-level reset using the RS232 serial port. This is an advanced method for technicians. raysharp+dvr+password+reset+top
Technical users have previously identified vulnerabilities in older RaySharp firmware where passwords could be retrieved remotely: A: admin / 12345 / 666666 — but