You can switch an Unwired Server from an unserved license to a served license, without reinstalling.
SERVER <host> ANY VENDOR SYBASE USE_SERVER
Replace <host> with the name of the SySAM license server host.
SERVER <host> ANY <port> VENDOR SYBASE USE_SERVER
Replace <host> with the name of the SySAM license server host and <port> with the port number for the SySAM license server.