I have my sensor calibrating fine. It outputs gyro = 3, mag = 3 and accel= 3. But the sys output will stay at 0. I thought that the sys output was solely based on the output of the other 3. I have had the sensor working fine up until yesterday. Once I would get the 3 x 3s the sys value would quickly hit 3 and everything was all set. I can't figure out what I might have done or what happened. I assume this should not be happening with all 3s and a sys of 0. TIA.