To use the Nokia Configuration Tool 6.3 (NCT) with older versions of Nokia E52 and E55, the following Phone_service_pack_01.sis file needs to be installed on the device. It enables NCT operations such as send/import profile and Edit online.

Download and install the PHONE_SERVICE_PACK_01.SIS file and follow the instructions.

http://dl.nokia.com/ns/nokiavpn/PHONE_SERVICE_PACK_01.SIS