Updates cannot be performed after using Applyupdate.

There could be several reasons why updates may not work after using Applyupdate.

1. The Applyupdate operation has failed due to potential reasons such as incorrect format of the update package, insufficient permissions, or other causes. In such cases, it is necessary to examine error logs or other prompts to pinpoint the specific issue and address it.
2. Failure to use the Applyupdate command correctly: The Applyupdate command requires the correct parameters and options to perform the update operation. Incorrect settings of parameters and options may result in an ineffective Applyupdate operation. In this case, it is necessary to carefully review the syntax and options of the Applyupdate command and use it in the correct way.
3. System status does not allow updates: In some situations, the system may be in a state that prevents updating operations. For example, if the system is engaged in other important tasks or if other processes are running, this may prevent updates from being carried out. In such cases, it is necessary to wait for the system to be in an appropriate state before proceeding with the update operation.
4. Update package conflict: If there is a conflict between a previous update package and the one currently being applied, it may cause the Applyupdate operation to fail. In this case, it is necessary to check for conflicts between the update packages and resolve them before proceeding with the update operation.

In conclusion, if updates cannot be completed after using Applyupdate, it is necessary to carefully examine each step of the operation, including the use of the Applyupdate command, conflicts between system status and update package, in order to identify and resolve the issue.