If you encounter such problems, you should first check whether the serial number entered in the software during installation is correct. Note that the input method must be "half angle" when entering the serial number, because the "-"sign is very different between "half angle" and "full angle". If the serial number is entered incorrectly, you can change the serial number of the software by modifying the registry. The specific method is:
(1) Click Start-Run-type REGEDIT in the dialog box, click OK, start the registry editor, enter the registry editor, and find HKEY _ local _ Machie- Software-Beihang Haier-corresponding software name (click this folder)-Serial (double-click this file to modify its key value and fill in the correct serial number)-For CAXA_EB and CAXA _ WE.
(2) The problem of incorrect serial number can be solved after restarting the computer.
Secondly, you should check whether the software is in the installation directory, and suggest users not to install the software in the root directory of the disk.
If the software still cannot detect the dongle after trying the first two methods, please delete the data\eb2000.cfg file in the software installation directory, and then run the software again.