Dorado 5500 V3 import certificate failed.

hello,you can check your operation step as blew.
1、follow the guide to replace the certificate for the portal with command Line. and need be careful all the controls need do the replace operations.
http://support.huawei.com/hedex/hdx.do?docid=EDOC1100049969&id=EN-US_TOPIC_0138913432&text=import%2525252Bssl_certificate&lang=en
2、when u finished import the certificate that need restart the service with the command "reboot ism";
3、if u failed this operation and u want to roll back the default certificate u can execute the command "restore ssl_certificate"

hope this can help u,thanks