I have sprint and this is driving me crazy! My note 3 is getting -108dBm when my GS4 got -85. Im on sprint and my co-workers on sprint with the note 2, GS3 and GS4 all have signals within -2dBm from each other and all have 4 or 5 bars when my note 3 has 2. I went to the sprint store and put mine...