1. Restore factory settings: If the intelligent blackboard device is restored to factory settings, all software and data will be cleared, including pre-installed software. Restoring factory settings is usually an operation to restore the equipment to its initial state, similar to reinitializing the equipment.
2. System update: If the intelligent blackboard equipment is updated, it will sometimes be accompanied by software reloading or updating. In this process, the old software may be cleared and replaced by a new version. Therefore, if you have installed your own software on the smart blackboard, you may need to reinstall them.
3. Security policy: Some smart blackboard devices may have security policy restrictions to prevent users from installing or running third-party software themselves. This is to ensure the safety and stability of the equipment. If the software you installed does not meet the security policy of the device, they may be cleared or not work properly.
If the software you installed on the smart blackboard is cleared, you can try the following solutions:
1. Restore the backup: If you made a backup before installing the software, you can try to restore the backup file to restore the cleaned software and data.
2. Reinstall the software: If you know the source and installation method of the cleaned software, you can try to reinstall the software. Make sure that you follow the installation specifications of the device and know whether the device is allowed to install custom software.
3. Contact the equipment supplier: If it cannot be solved by itself, it is recommended to contact the supplier of the smart blackboard or the technical support team for help. They can provide device-specific guidance and solutions.