Does anyone else have service issues with their Note 3? I am on O2, I barely get 1 bar when at home or work yet my partner (who has an S3) gets 3 bars at home and my collegues at work have no service issues, both are also on O2. I thought I was being stupid but I put my sim in the S3 yesterday and had a really strong 3 bar signal while my GF only had 1 bar when her sim was in my phone. It's unbearable as no one can get intouch with my while I'm at work, I've called O2 and they are about as much help as a Chocolate teapot but now I'm certain it's the actual radio on the handset due to testing my sim in the other handset. Anyone had the update and if so is the cell radio updated or will I have this issue for the length of my contract? Anyone got any tips which is not taking a hammer to it?