Hikvision Xml | Key Generator !free!

There is no public "generator" software that creates the unlock key offline, as this would be a security risk. You must send the exported XML file to an authorized source:

The Hikvision XML key generator has various applications, including: hikvision xml key generator

Hikvision support may no longer respond to these requests for older devices. They will likely direct you to update the firmware or physically reset the device. There is no public "generator" software that creates