I don't know if there is any iPhone 4 that didn't have problems with the signal and the news from Apple is very good discouraged considering that for now the company still refuses to recognize the fact that the iPhone 4 has big problems with the signal. Still one owner of iPhone 4 suddenly woke up that, for the time being, his problems with the signal on iPhone 4 were solved by themselves without doing anything else. The respective owner went to an Apple Store to solve another problem with the iPhone 4, when he got there a technician decided to change the terminal and removed the micro-SIM card from the phone to put it in the new one. After a few minutes of testing the new terminal, they discovered that it had the same problem and the customer decided to keep the old phone. His phone stayed for 15 minutes without the micro-SIM in it and after reinserting the micro-SIM he discovered that he no longer had problems with the signal no matter how he held the phone.
I went on my merry way, but realized something now. No matter what position I hold my iPhone 4 in, the signal never decreased. I held it the many ways I know the signal issue pops and nothing. No bar loss, no signal loss, no call drop. NOTHING. So there you have it.
I am theorizing that moving the SIM card had something to do with the signal issue, because the only thing I have done to my iPhone 4 differently is take out and reinsert the SIM card. Other than that no other changes to it. No setting change, no software change no nothing. Just reinsertion of the SIM card.
It seems too good to be true, but for those who have problems with the signal, this theory is worth trying. On the other hand, other users have noticed that a part of the card is placed under the SIM tray in the iPhone 4 and there is a possibility that the 2 surfaces will make contact and hence the problems with the weak signal. Some people tried to cut the micro-SIM card to one side to avoid contact with the tray or they covered the part that makes contact with insulating tape and some even managed to solve the problems while for others these methods did not have no effect.
I just tried this. My sim contacts were under the edge of the tray too. I cut a piece of electrical tape to exactly cover only where the gold contacts of the sim touched the tray. I went back to the exact location in my house where I had 1 signal bar. I now have 3 signal bars. Unreal, I can't believe this did anything. Tested before and after with a bumper on the phone. I'll keep an eye on the performance outside the house tomorrow. I don't want to jump to conclusions that this helped my iPhone reception without more data. Looks promising so far though!
It is up to you to try any of the 2 methods shown above, if you get good results, please share them with us.
