Failed Calls & Searching for Service

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Europa

Moderator
Senior Moderator
Dec 12, 2008
28,365
5,505
113
Utah
#1
I've had a factory unlocked 4S (I'm using an AT&T SIM) for eight days and I've had a failed call and loss of service five times. Each time it has occurred while I was at home with five bars. The call drops and I see the failed call notification. Then about five seconds later the phone searches for service. After about ten seconds it locks on to AT&T and has five bars again. I reset the network settings and it didn't help. On one occasion my caller heard a loud, high-pitched screech just prior to the failed call. I set this phone up as a new device when I got it last week. I still need to try a restore to factory settings.

I had failed calls on the iPhone 4, but they were no where near as frequent and the phone didn't search for a signal after the dropped call.

Is anyone else here experiencing this problem? I'm thinking about exchanging the phone.
 

Jmbaker429

Evangelist
Gold
Jun 28, 2010
994
146
63
32
Florida
#3
I've had a factory unlocked 4S (I'm using an AT&T SIM) for eight days and I've had a failed call and loss of service five times. Each time it has occurred while I was at home with five bars. The call drops and I see the failed call notification. Then about five seconds later the phone searches for service. After about ten seconds it locks on to AT&T and has five bars again. I reset the network settings and it didn't help. On one occasion my caller heard a loud, high-pitched screech just prior to the failed call. I set this phone up as a new device when I got it last week. I still need to try a restore to factory settings.

I had failed calls on the iPhone 4, but they were no where near as frequent and the phone didn't search for a signal after the dropped call.

Is anyone else here experiencing this problem? I'm thinking about exchanging the phone.
I have a 4s on AT&T and experience more dropped calls now than ever. Never this bad on past devices. I haven't had it search for service when there was service available. Sounds like you have done everything that you can do yourself from home. If it was me I would deffinately try to swap it out. I have not tried anything with mine just bc I think it's the service and not the phone, but not sure. I get dropped calls even with 5 bars. Also I have never had anyone complain of a noise when a call is dropped just dead air. Let us know what you decide. Hopefully they will just swap it out without too much of a hassle. I remember I used to have Nextel, and I left them bc when they merged with sprint I was dropping ever other call it seemed. I hope that it's just something AT&T can fix, and hopefully they fix it soon bc it's very inconvenient especially using the phone for work.
 

Leo

Zealot
Silver
Nov 9, 2008
898
133
43
29
Calgary, AB
#4
Do a complete restore, there's a newer 5.0.1 that fixes this issue in 4S's, but you can only get it via restoring your phone if you're already on the older 5.0.1.
 

Jmbaker429

Evangelist
Gold
Jun 28, 2010
994
146
63
32
Florida
#5
Do a complete restore, there's a newer 5.0.1 that fixes this issue in 4S's, but you can only get it via restoring your phone if you're already on the older 5.0.1.
ah I forgot about that. I knew there was a second 5.0.1 but did t realize that it was to fix this problem. So if you were on the old 5.0.1 it wont show you that their is a new update to the new 5.0.1?
 

Rafagon

Genius
Gold
Dec 7, 2011
7,566
1,252
113
44
Miami, Florida
#6
ah I forgot about that. I knew there was a second 5.0.1 but did t realize that it was to fix this problem. So if you were on the old 5.0.1 it wont show you that their is a new update to the new 5.0.1?
It doesn't. It was a tweaked 5.0.1 with a new build number. You had to know about it and proactively go and get it.

I found a post which described Europa's issue pretty much verbatim, and the user claims the new build fixed it. It's the second post here

[See following post]

I originally posted a link rather than a screenshot but then the link didn't work.

Sent from my alphanumeric pager.
 

Vonwachtstain

Member
Bronze
Jan 2, 2011
159
13
18
CT, USA
#8
I had the same problem yesterday. Full signal but it wouldn't collect calls and when it did they failed really fast. As for high pitched sound I have one EVERY time right after I get connected no matter if I call it somebody calls me. My iPhone 4 had the same problem.
 

Europa

Moderator
Senior Moderator
Dec 12, 2008
28,365
5,505
113
Utah
#9
It was shipped with 5.0.1 9A406 (the second 5.0.1 build). I'm not experiencing any No SIM or No Service issues. The problem is a failed call at five bars, then Searching for Service a few seconds later, then a return to five bars a few seconds after that.
 

rom x

Zealot
Gold
Jan 18, 2011
1,043
99
48
#10
i think it's a network issue cause i have sprint and i have never heard a loud, high-pitched screech when making or on a phone call.
 

Europa

Moderator
Senior Moderator
Dec 12, 2008
28,365
5,505
113
Utah
#11
I didn't hear it. The person I was talking to heard it right before the call dropped last night.

I think I'll just have Apple ship me a replacement.
 

Rafagon

Genius
Gold
Dec 7, 2011
7,566
1,252
113
44
Miami, Florida
#12
I didn't hear it. The person I was talking to heard it right before the call dropped last night.

I think I'll just have Apple ship me a replacement.
And then the caller himself dropped. He reported his ear was in a cast, LOL.

Funny, my 4S came with the same build as yours, and so far none of those issues. All these inconsistencies! Those Foxconn employees need to disinfect their hands better and wear more face masks before they put their hands on our devices!


Sent from my alphanumeric pager.