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cench · 12-02-2011, 00:02

Hi, I am sorry if this is posted before. If so please kindly direct me to the related thread.

I have this issue for a long time but it turned into a problem after iphone 4s.

I live in central london, between tottenham court road and holborn stations. After a period of inactivity (around 3-4 hours) I can't receive calls or texts. Only after I make a call or send a text, I can receive calls and texts another 2-3 hours. And the phone shows full reception while all these things happening. So there is no way to understand if the iphone is active or not.

Its a re-creatable problem, for example every morning I wake up, my phone is off the line. (again showing -wrong- full reception)

When I was using iphone 4, disabling 3g was solving this problem completely. Now after upgrading iphone 4s there is no way to do that.

When I call O2 Customer Services, they did not accept it as a reception issue instead they advised some steps to solve the problem:

1- disabling voice mail.
2- disconnecting/reconnecting my account.
3- replacing the sim card.
4- replacing the iphone 4s.
5- replacing the phone number.

I followed all the steps, disabled voicemail, reconnected my account, changed the micro sim, went to apple store and replaced the iphone 4s, finally purchased two seperate pay&go sim cards. none of them solved my problem.

Recently I found out how to access signal strength on the iphone(using *3001#12345#*).

I tested the phone while its reachable and unreachable, signal strength shown by the phone was around -85db on both cases.

Also made a speed test:
While o2 was giving "its not possible to connect your call" message, my phone was showing 3g connection and speed test result was 1.86mbps down, 1.59mbps up, and 90 ms response.

I was getting "its not possible to connect your call" message before, during and after the this first test. Than I made an outgoing call which activated my line and repeated the test with the following results: 1.99mbps down, 1.56mbps up, and 96ms response.

So when the problem is there, 3g connection is working without problems and signal strength is stable but I am unable to receive calls or texts.

Any experts comments on this?

summary:
when 3g active, iphone 4s shows full reception, can't receive calls after a period of inactivity, did everything customer service adviced, problem still there.

many thanks.

12-02-2011, 00:02	#1 (permalink)
cench Junior Member Join Date: Dec 2011 Posts: 1 Member: 1699320 Status: Offline Thanks Meter: 0	iphone 3g and reception problems Hi, I am sorry if this is posted before. If so please kindly direct me to the related thread. I have this issue for a long time but it turned into a problem after iphone 4s. I live in central london, between tottenham court road and holborn stations. After a period of inactivity (around 3-4 hours) I can't receive calls or texts. Only after I make a call or send a text, I can receive calls and texts another 2-3 hours. And the phone shows full reception while all these things happening. So there is no way to understand if the iphone is active or not. Its a re-creatable problem, for example every morning I wake up, my phone is off the line. (again showing -wrong- full reception) When I was using iphone 4, disabling 3g was solving this problem completely. Now after upgrading iphone 4s there is no way to do that. When I call O2 Customer Services, they did not accept it as a reception issue instead they advised some steps to solve the problem: 1- disabling voice mail. 2- disconnecting/reconnecting my account. 3- replacing the sim card. 4- replacing the iphone 4s. 5- replacing the phone number. I followed all the steps, disabled voicemail, reconnected my account, changed the micro sim, went to apple store and replaced the iphone 4s, finally purchased two seperate pay&go sim cards. none of them solved my problem. Recently I found out how to access signal strength on the iphone(using 3001#12345#). I tested the phone while its reachable and unreachable, signal strength shown by the phone was around -85db on both cases. Also made a speed test: While o2 was giving "its not possible to connect your call" message, my phone was showing 3g connection and speed test result was 1.86mbps down, 1.59mbps up, and 90 ms response. I was getting "its not possible to connect your call" message before, during and after the this first test. Than I made an outgoing call which activated my line and repeated the test with the following results: 1.99mbps down, 1.56mbps up, and 96ms response. So when the problem is there, 3g connection is working without problems and signal strength is stable but I am unable to receive calls or texts. Any experts comments on this? summary: when 3g active, iphone 4s shows full reception, can't receive calls after a period of inactivity, did everything customer service adviced, problem still there. many thanks.