wow this guy is stupid. there is an issue but the correct word might not be "signal". the antenna is on the outside of the phone, when the hand bridges the 2 antennas there is interference. depending on what cell tower you are connected to and the frequency that tower is transmitting then you might not see any problem. the interference cant be fixed, but there is many options. one the phone could switch frequencies and increase some power to the antenna but that is at the coast of battery life. this is achieved by a software update. and the other is a full recall and fix, but that is not practical. so this is the issue so whatever it is it is still a problem.