A tiny tactile button usually labeled RESET .
MHK is a small brand; official support is nearly nonexistent. Your best bet:
If those fail, attempting to calculate a password using the device’s date and time and a "Superadmin" tool is the logical next step. Tools like these exist for HiSilicon devices, and you can often find generic super password generators online that are compatible with many MHK models.
Click the or Reset Password link on the login prompt. Choose your recovery method: mhk dvr password reset
Also, thoroughly inspect your DVR's casing, packaging, or user manual for a sticker that may list the default credentials. It might be there and you haven't noticed it yet!
Download a generic DVR Super Password calculator tool on your computer, or find an online CCTV password generation portal.
Use a secondary QR scanner app or a Super Password generator tool on your phone to scan it. A tiny tactile button usually labeled RESET
Is there a specific printed on the sticker underneath your DVR box?
To use this method:
Press and hold the reset button. While holding it down, plug the power cable back into the DVR. Keep holding the button for 15–20 seconds until you hear a long beep, then release it. Tools like these exist for HiSilicon devices, and
If the defaults don't work, the system likely uses a dynamic master password based on the current date and time displayed on the login screen.
Before attempting a hard reset, try the standard factory credentials. Many MHK and similar unbranded H.264 DVRs ship with predictable default logins. admin , Administrator , or 888888