iPhone 5 No Service?

My 64g iPhone 5 seems to lose service about once a day. It does happen at locations where the signal strength wanes (like my ferry commute between Seattle and Bremerton.) But today it occurred in a local supermarket. Had to reboot. I'll call AppleCare and see what they say.

Seem like a problem that im having also. Im on the 3 network in the UK and ive been getting No Service issues. When I go into a low signal area, such as a lift, i expect the phone to loose connection but it never connects back until i restart my phone. Out of curiosity I left my phone with No Service to see how long it would take to re connect. I left it for 14 hours and took it to the apple store in Cardiff to show them. They said they were seeing this issue a lot and colleagues in the store were having issues as well but only with 3 UK network. They passed it off as a problem with the network. After speaking with the guy from apple store i restarted my phone in store and it went from No Service to 4 bars 3G. I dont care if its an apple or a 3 problem, I paid for an iPhone 5 but all ive got is an iPod touch. I hope this gets fixed soon as I will be taking it back the next time it drops out to get it replaced.

I called into Apple Support and they just suggested the reset all Network Settings. I did that, but did not have the problem at the time of the call. They also referred to this article:

http://support.apple.com/kb/TS3780?

The problem might be related to the AT&T service, which is supposedly expanding the reach of 4G in the Seattle area.

Also having this issue on my iPhone. I've noticed that apps like facebook seems to hang, which causes the "no service". sometime when force quitting these apps i see my service go to 1 bar...

Am reading others posts on this issue with great interest as I am using a iPhone 5 (US/Verizon model) in Canada with a Telus pre-paid sim card and am having exactly the same problem.

At times it connect to the GSM network and is operational for about 24-48 hrs. Then, it either displays "No service" or "searching" in areas that clearly have connectivity.

In addition to the problems reported on this thread, I am also experiencing an additional issue - that being that the phone seems to not be able to get past the SIM unlock screen.

Specifically, I changed the default Telus SIM PIN code from 0000 to another number. when I power off/on the phone I am not able to get past the SIM unlock screen.

I have tried resetting network settings, toggling Airplane mode and soft reseting the phone to no avail

As with others, am interested to know if this might be a hardware issue or something that could be fixed by a software update by Apple.

Just a little update. Continued to have the 'no service' issue and took it in to the Genius Bar. I decided to try replacing the SIM card first to see if that resolved the problem (seemed the easier route at the time). After 1.5 hours trying to get the card installed and my email services running smoothly I was done (or so I thought).

Proceeded out the door and was gone no longer than 5 mins and the 'no service' issue surfaced once again! Back into the Apple store I went and now have a new iPhone 5. Was also told by the Apple rep and my own Telus Service rep that if I experience the same problem with the new phone to turn off the LTE. (Apparently Apple is working on an update to resolve - although this is heresay).

🙂

Well ... I've had my new replacement iPhone 5 for two days and had a 'no service' happen again this evening. Not impressed. I have now turned off the LTE to see if this solves the problem. Sure hope they come out with a fix soon ...

:(

I've tried a different (nano) SIM card from the Operator (Telus/Canada in my case) to no avail.

I put the Verizon Nano SIM back it and it works, but that is due to the fact that it connects to the CDMA network available in Toronto. If I turn off CDMA (voice) roaming, it switches to GSM mode - and can't connect.

My guess is that it is an issue with GSM functionality in the phone. Question is, is it an issue is due to a hardware (which could be a manufacturing defect) , firmware or combination of both. If it's the later, a software upgrade could possibly fix things.

I spoke to Apple support yesterday and they took me through a series of steps, including a full restore. Didn't solve the problem. Likely their next step will be to replace my phone. If the issue is due to a manufacturing defect that has been corrected, then great. However, if it's not due to that - I fear the replacement phone will have the same issue.

I'll keep folks updated

References of interest:

http://support.apple.com/kb/HT3939#iPhone5

A1429 - (GSM and CDMA model)

http://www.apple.com/ca/iphone/specs.html

CDMA model A1429*: CDMA EV-DO Rev. A and Rev. B (800, 1900, 2100 MHz); UMTS/HSPA+/DC-HSDPA (850, 900, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz); LTE (Bands 1, 3, 5, 13, 25)

http://www.huffingtonpost.com/2012/09/25/verizon-iphone-5-unlocked-att_n_1909972 .html

Verizon iPhone 5 'Unlocked' Feature Is Here To Stay: Carrier Will Let iPhone Owners Switch To AT&T

....The Verizon version of the iPhone 5, which went on sale Friday, came with an unexpected feature: it works on the network of AT&T and many other phone companies, as well as on Verizon's....

I'm having the same problem on Vodafone UK. For long periods phone will go to 'No Service' with my iPhone 5 64GB.

I don't think it's a network issue as the coverage here is usually fine. Any suggestions?

thanks for sharing the incident report. Does see very similiar to the situation I have using a US Verizon model in Canada with a local nanosim

I've got an open service ticket with both Verizon and Apple. Both seem rather puzzled about the GSM functionality issue which - for some reason causes the phone to continously search for service and/or display "No Service"

- Let me suggest the following recommend course of action:

1. Inform Apple & Carrier

- The more cases they have in their ticket system about this, the faster they (hopefully) will act.

2. Share Settings to see if it is just occuring to a specific or range of models of the iPhone 5

Key settings can be obtained under Settings / General / About , look up the following: Version, Carrier, Model

In my case:

- US Verizon Iphone 5 having issues connecting with Telus service (nano sim) in Canada

- Phone Details: Version: 6.0 (10A405), Carrier: Verizon 13.1, Model: MD664L (Verizon, 64 GB)

Vodafone

iPhone 5 Version 6.0 (10A405)

Carrier: vodafone UK 13.0

Model MD662B

I usually get two bars with AT&T in my home. Just now I had No Service. Rebooting by holding On/Off button and Home button down at the same time restored the service.

I had this issue till I found this page talking about reseting device through iTunes and believe it or not, it DOES work!

https://discussions.apple.com/thread/4406617?answerId=20058505022#20058505022

I'm using Three (3) in sweden and had already tried everything about reseting network settings, disable pin code etc.

My apartment is like a bunker with special places where I can easily test the different fixes because I can get the "no service" when ever I want and also get signal when ever I want dependeing on where I am.

Hope this fixes it for you too!

I'm in the same boat. I have an iphone 5 with Verizon as the carrier and while on business my phone kept searching for signal. I did what others on this topic have done. I reset my network settings and once that didn't work I reset all the settings on the phone. That didn't work either so I decided to hook it up to Itunes to restore. Now i'm getting a -1 error. I looked that error up and basically it says to take it in to be looked at by the folks at the apple store. So I'm off tomorrow to have the guys at the genius bar take a look. I have a feeling that this phone is done and they will probably have to replace it. We'll see.

After several attempts to try resolve the situation with tech support at Telus, Apple & Verizon I was left with no other choice to take my iPhone 5 to a Apple Genius Bar upon my visit to the US yeterday.

I described the problem to the tech support specialist. When I was done explaining the situation I was told that my case wasn't isolated as several other iPhone 5 users (about 4-5) had reported the same problem over the last 2 weeks.

He turned on my phone and looked up the serial number in an internal Apple lookup tool. He confirmed not only that it was a Verizon phone, but its lock status was "false lock"..

I was puzzled about that and asked how that could be as Verizon has, on the record, stated that the phone is unlocked. I was told that the phones wasn't completly locked by the carrier, and could work with other SIM cards.

To test the GSM functionality, the Verizon SIM card was swapped out and the Canadian Telus card was put it. The "Carrier" option was selected and network selection was set to manual. The phone then went into search mode - and as supposed to find "AT&T & T-Mobile", but after a long wait couldn't find anything.

With the GSM problem confirmed, the determination was made to swap the phone for another new one. The old phone was wiped in front of me and we ran the GSM test on the new phone. The new phone was able to detect the 2 GSM networks.yey!

I took the phone home and did a complete restore from a backup I had made before heading off to the Apple store.

It's been working fine since then. But won't be able to say the problem is fixed until I roam outside the US again in about a week's time. Only then will I be able to confirm if the phone can work.

I'll keep everyone updated.