I followed the link: infocenter.nordicsemi.com/index.jsp to build and load the app into two boards.
Step 1 ~ 8 are working as expected. But
Step 9 "Observe that LED 2 turns on on both boards and that the tester prints "Test is ready. Press any key to run." on UART." never happened, ie. the two boards are not ready to run further test.
Please help. Thanks.