SD5A425XA-HNR Reset Button

[teesee]

I bought a SD5A425XA-HNR SD5A425XA-HNR - Dahua DACH
I don't know what the password is and am trying to find the reset button , can anyone help me? here is photo with the cover unscrewed

 

[TonyR]

Doesn't it have a micro SD card for storage, near the bottom? If so, the reset button is usually under that door, perhaps held by 2 screws.