No Service / Searching iPhone 4

Have you replaced the SIM card?

Then it sounds like it's time to bring your phone into Apple for evaluation.

hey guys, i work for sprint and the users that use iphone 4s and it goes into 3g and then searching and it keeps happening. is not a sprint issue, is something on the hardware for the iphone. i had a customer today, we reset the network, changed sim card and change the phone..i think is apple..just maybe someone wll benefit from this

Hi,

I have the same problem with an iPhone 4 16GB Factory Unlocked. I tried 2 SIM Cards, restored it multiple times, reset network settings, turned phone on and off, airplane mode on and off, upgraded from iOS 4 to 5.0.1, and still have the same problem. The most it kept the signal was up to 9 hours, than it started repeating the problem.

Sometimes the phone drops signal to one bar and comes back up to full signal; which does not really bother me, since its only about 5 seconds without signal. But the main problem is, when the phone is idle, on the table or pocket (so it is not the case of covering the anntena with hand), it drops the signal and it shows Searching for some seconds and then it says No Service. Sometimes the Airplane Mode On Off works or Turning Phone On and Off. Additionally, the problem also occurs with using the phone with other apps.

I don't have an Apple Store in my country, and the local phone repairs said that we can't do anything. One phone repair shop said it must be a hardware problem, and that he can TRY to fix it (the part try was a little risky for me).

Phone was never dropped to ground or anything of that nature. The reception of signal from local carriers is very strong all around the city.

Any help is really appreciated.

I guess not, but I'm still hoping. I've been reading all over the internet and this problem dates back from the first iPhone.

Someone mentioned this:

For the Iphone 4S. check version 5.0.1 (9A406) if you see (9A405) you would need to restore device..

(9A405) means the software updated hung and dint complete the restore process..

hope this helps

https://discussions.apple.com/thread/3530974

I hope this has to do something with my problem and fix it.

first off i would like to say 5.0.2 isnt coming anytime soon tere is another update but thats not for the cell reception and what not but the only way i have found to fix the no service issue is by doing this go to settings>location services>system services> and turn on call network search,compass calibration, setting time zone and then go back to the settings app and now click on general>network>and make sure that cellular data is on as well as voice roaming and data roaming and that should do it if this does not work try restoring the device as a new iphone not from backup

It's coming out today along with the release of the iPad HD and the new features I've heard of it has battery life issues it adds Japanese language for Siri and it changes the lockscreen when u double press the home button and get your camera button that changes