Hi@Thanos_Marvell,
This will help you!
Possible Causes
•Other patches are running on the device.
•The device has no patch to be installed.
•The version of the patch to be installed does not match the system software version.
Troubleshooting Procedure
1.If other patches are running on the device, before installing a non-incremental patch, run the patch delete all command to delete the running patches.
2.If the device has no patch to be installed, upload the patch to the installed to the device.
For detailed operations, see Using FTP/TFTP to Transfer Files to upload the patch to be installed to the device.
3.If the device has a patch to be installed but the version of the patch does not match the system software version, install a patch of which the version matches the system software version.
link:https://forum.huawei.com/enterprise/en/DCN-Q-A-Failed-to-Install-a-Patch/thread/542969-861
If you have any problems, please post them in our Community. We are happy to solve them for you!