Control software serial number disappeared bug fix
Generally, this situation is caused by the automatic formatting of software bugs, and the fixes are as follows;
1. Set the current to 0, open the settings menu of the software, and select Settings General;
2. Enter the password ********（Contact Sales）, press Enter to enter the general settings page;
3. Enter the serial number of this machine in the serial number field, as 23112366;
4. Press Enter to confirm, and close the window.
After following the above operations, the problem of serial number disappearing bug can be solved under normal circumstances.
If the problem is still not solved, please contact us in time, and the technician will solve it for you as soon as possible.