Hello, friend!
Please run the ont port attribute catv default-operational-state command to activate CATV Ports on huawei OLT.
This command is used to set the default status of a CATV port on an ONT to ON or OFF. After the upgrade from V800R005C02 to a later version, the default CATV port status of the ONT is inconsistent between versions. As a result, the default CATV port status is inconsistent before and after the upgrade. After the upgrade, you can run this command to manually change the default value of the ONT CATV port to be the same as that in the source version. By default, the CATV port of an ONT is ON.
Thanks!