I am having a problem with the display as well. Can you guys help!? I plugged it in and it gives this display. I have rechecked the solder and cannot find any bad connections. It gives the same display every time I plug it in. The countdown works fine, including the LEDs and audio beeps. Thanks for the help. Also, do I have the connections correct to put a 9v battery? I assumed the + and – were for a battery terminal connection. This can obviously be removed if this is incorrect.