I think I kind of did the same thing locking myself out. My camera does not have a hard reset button as well.
I locked myself out by enabling the IP filter and blacklist option and not filling in any ip addresses. Resulting in 'user is in blacklist' popup when I want to login the web portal of the camera.
The only solution I found was connecting the cam directly to the LAN port of my laptop, logging in with Putty(Telnet) and a user from the admin group. After logging in with Putty, open a new browser(Internet Explorer NOT Edge) session on the same computer from where you are logged in with Putty. Now you can login with the same user from the admin group as you used in Putty. For some reason this way you pass the IP filtering and you can change the IPFilter option to disable or add IP address ranges if you like.
P.S.
The steps to login with Putty I got from this website:
Firmware for your IP cameras based on Hi3518C, Hi3516C, Hi3518E. Teaching you how to reset camera and watch video streams via RTSP, access via Telnet.
www.burglaryalarmsystem.com
In case the website is down after starting Putty:
- Fill in IP address of your camara and port 9527
- Checkmark : Telnet as connection type
- Under "Terminal" Category menu option on the left, check the checkbox of "Implicit CR in every LF"
- Then click OPEN
- If an empty prompt appears, just hit Enter 1x
P.S. My camera is one of the Chinese kind. It is called EScam QE07, but internally the motherboard is 50H10PE-SL. Onvif Device Manager does not see/find the camera. So does not IP Quick Scann. 'Device Manage'(DeviceManager)(version 2.5.2.2) does find the camera, but 'Reset configinfo' does not work. Either popup 'User is in blacklist' or 'Can't find device' (while the search does find the device). You can Modify the IP address config of the camera with this tool though!