The present invention relates to a step hinge for a portable communication terminal, and more particularly to a step hinge mounted to a portable communication terminal, which can rotate at various angles thereto. The connector is suitably designed both for assuring an electrical continuity between PCB and an external power supply and locking it in a slot formed on said main body. Unit dose devices for storage and delivery of the aminoglycoside antibiotic formulations are also provided. If the update status is not \u201cDEFAULT\u201d, the update status is further determined if it is \u201cUPDATED\u201d. The first signals include signals received from a first cell associated with the second radio node.