IPhone 5 with IOS 7.0.3 3G connection lost!

To Jasonlkk,

When you say "no 3G" connection, do you mean the upper left hand corner show "No Service"?

And no bars at all?

Or do you mean you have some bars but no "3G" showing next to your telco provider name DIGI?

Are you able to make and receive calls when your phone is under this "no 3G connection" condition?

To Jasonlkk,

This is indeed an unusual situation. The number of bars indicate signal strength, and the presence of LTE or 4G or 3G or E or even a small circle (GPRS) indicates the stable packet speed.

I myself have seen what you have described: in very bad reception areas, such as in lower level of department stores or basement, the bars would turn to "searching....." or "No Service". At this point there is no voice and data service. But when I relocate to a better reception place, the bars would return, the data indicator (LTE/4G/3G/E/GPRS) would be delayed in appearing, but not by too long......1 or 2 minutes maximum delay.

Have you let it sit idle for longer than, let's say 2 minutes? If we start to toggle airplane mode and disable/enable 3G before the phone has had sufficient time to establish the data speed quality of the current location, that could interfere with the presence of the data speed symbol.

On UMTS systems, the voice is handled by the MSC and the data by the SGSN. Under normal circumstances, when the cell phone can conduct a voice call, the MSC knows where the mobile is, and so should the SGSN.

It seems that your cell phone is having problems re-attaching to the SGSN side after a loss of established radio bearer, and needs to go through a fresh location update in order to attach again.

Please test this scenario out in other locations (same loss of reception and return to reception). If you can duplicate it in other areas, then you should open a trouble ticket with your carrier because may be a real problem with the SGSN side.

This re-attach to SGSN is a basic functionality of any GSM/UMTS phone, and I don't believe iOS7.0.3 made any changes to this portion. The release notes doesn't mention having made changes to functionality in this area. So yes, contact your carrier and open a ticket. They may not do anything for 1 user's report, but they will if more people call in, or if you complain enough about it.

Another test is to use another GSM/UMTS phone, put in your same SIM (with SIM adapter if needed), and see if the same problem can be duplicated.

To JasonIkk

Hi there; im an user of DiGi too. Im currently experiencing the same problem as yours.

Hello,

I am also a fellow digi user using iphone 5.

I have been having the 3g missing issue for quite awhile. It can be solved by changing the network selection to manual. By doing so, the network signal will not be lost. However, instead of the 3g being lost, now i will occasionally get the network connection lost notification, which i will have to restart my phone to get the network functional again.

Any input on how to fix this? To restart the phone every other day is so annoying.

Thanks

Here's the solution,

Steps

1:open settings

2:press on carrier option

3:disable automatic

4:select your carrier

5:restart the phone

Anyways after doing it, the problem wont be appering again on my device.

I hope this would help u guys

Done that, it solved the missing 3g problem, but a new problem after that. It will lose network and still need to restart the phone to get the network again

I dun think u need to restart after the network lost bcause whenever i lost my signal, i'll juz slide up the control center and enable aiplane mode. After few seconds disable it and your would be able to regain your signal bars again. However it still depends on which area you are, because the DiGi coverage is kinda *****.

this is what i get when i put the carrier settings to manual.

I have same issue. 32gb Iphone 5 IOS 7.0.4 (problem started once I updated to 7.0.3)

https://discussions.apple.com/thread/5552490?tstart=0

Something is wrong with that IOS 7.0.3.

Regards

I know this is a old post, but here we are experiencing this, I had this problem a month ago and since then we have this issue a lot with iPhone 4S on 7.0.4

We have an excellent link with the carrier 5 dots, but 3G disappear. We must restart the phones to have it again, it's very annoying since they are work smartphones, when 3G drop this mean email aren't received.

A user here reported SMS wasn't working either when this issue happened on his phone.

Apple must fix this please.

Same issue here (iPhone 5s, plenty of signal, no 3G, needs a restart to fix), though I only noticed the problem when I went to 7.0.6. I am now on 7.1 and have the same issue. Have not tried a full restore & set up as new yet... Will try that this week and post back.

EDIT: my carrier is Three in the UK.