Please follow the below steps by using config tool , for resetting the password in IPC camera’s
Here the link to download the config tool
support.dahuas...
1.Open configtool and press the Search Setting
2.Go to password reset and select your device ( Noted: Laptop/PC should be in same range IP address of Camera's)
3.Press the batch reset
4.Chose the patch and save "Export.xml" file
5.send the xml file to support.mena@dahuatech.com
6.Team will send recovery xml ( Result.xlm)
7. Choose the Import Result and select the Result.xml in the patch and reset those camera's