It does sound like the firmware could be bad. Mine was not soldered very well inside and it went flaky on me. Once i went over everything I have not had a problem since. I don't know if you are handy like that or if you know somebody who is, but they are very simple insde. Any novice with a decent solder tip and some flux can go over all the joints in about 45 min including disassembly for the first time.