My iphone is updated to 4.1 and ever since then, i've been getting more dropped calls! I have a bumper on my phone with the wrapsol (shut up) side protectors under it. I don't understand. I have 4/5 bars in my house and when i try to talk to my girlfriend (has 3/5 bars in her area) and my mom (had 4/5 bars in her area) it always drop in around 20 minutes, 30 minutes, or an our in the call! I sometimes use my headphone and it would still drop at those times. What should I do? Go to the apple store and ask for a replacement? Or do you think its still the network *******'n me over?