During the testing period, the train had problems with the Czech signalling system. The problems were said to be solved and the trains entered regular service in December 2005 between Prague and Ostrava. As of late January 2006, all five Czech Pendolino trains in service suffered from software and functional problems, which were later fixed, but the trains still did not receive permission to operate abroad. In December 2006, the trains were given permission to operate in Slovakia and Austria, but as of 2010 permission for Germany has not yet been granted.