Compare the firmware with the others in the settings page. Try it with the others turned off. Try resetting the router. Power off then on. Try on a different router completely. Try swapping the battery with one of the others. You could also reload or swap the configuration with one of the others.
Post all the things you have tried with the results.
Project Boredom 2 is here. [Link: mediafire.com] ------------------------ Check Version 1 & 2 out in the files section.