I have a flrc attached the a raspberry pi B which works great most of the time, but from time to time it's like the pi forgets its there. If I unplug it and plug it back in it still doesnt work. The only way ive found to get it working it to plug it into my PC and run the FLIRC software. The buttons on the remote are recognised and all appears fine, When I return it to the Pi it works again.
I've tried changing the power supply to the pi and the same happens.
The device is probably a couple of years old and is running the lastest firmware (3?) but this has been the same with all previous firmwares.