IP Camera Lost password to restore the default factory settings - YouTube
How to reset an IP camera or PoE Camera
How-to: - How to Reset the Password of your Hikvision Camera/NVR in 5 steps using the SADP Tool | IP CCTV Forum for IP Video, network cameras & CCTV software
AV IP Utility: How to factory reset a camera – Arecont Vision
DahuaWiki
Network/IP security camera reset tool/utility 2019 version