Step S314: Searching for the second cell of the second RAT according to the information regarding the second cell derived in step S310.

Step S316: Determining whether the second cell has been found according to the searching result in step S314. If yes, step S318 is performed. If not, that is, based on a search result indicating that the second cell of the second RAT has not been found in the search for the second cell of the second RAT, step S320 is performed.

Step S318: Attempting to access the second cell, instead of the first cell, when the second cell has been found.

Step S320: Attempting to access the first cell. When the attempt in step S318 or S320 is successful, the processor 222 shows the icon of the corresponding RAT on the UI of the communications apparatus 100 to indicate service availability from the corresponding RAT. On the other hand, when the attempt in step S318 or S320 has failed, the processor 222 may have another attempt to access another cell that has been found in the corresponding search procedure, or may perform another cell search procedure for another RAT, such as performing step S322.

Step S322: Performing a cell search procedure for a third RAT. In the embodiment of the invention, the third RAT may be a RAT different from the first RAT and the second RAT, and may be less preferred than the first RAT and the second RAT. For example, when the RAT preference of the communications apparatus 100 is set as 5G>4G>3G, the third RAT may be 3G.