Q: iPhone 4S dropping network and data at random

maybe iPhone = "I can't phone" for me right now. I wasted 3 weeks after upgrading my 4s to ios 5.0.1 9A405 and than 5.0.1 9A406 to finding how to fixing that, but nothing like that exists. Everything was fine with 5.0 9A334 (i think so). Now, i'm using a phone which can't phone and send message. And...unfortunately, i took 2 iphone4s on that day.

If ios 5.1 final can't solve this problem, i will think about a android or windows phone.

Hello!!

After reading all replies in the discussion, I noticed no one from Spain is telling about the same problem here with Telefonica (Movistar). We get same fails like "Call Failed" or iPhone showing full coverage when not entirely true, etc... Although, I think no one mentioned a possible indicator to the draining battery problem, which is Usage statistics. In my case, when the iPhone starts draining dramatically the battery, the "Usage" and "Standby" times always show the same time and obviously it's nothing like that. So, anyone noticed that? Or maybe that's another unrelated trouble?

Thanks everyone!!

trick5 wrote:

 

Hello!!

After reading all replies in the discussion, I noticed no one from Spain is telling about the same problem here with Telefonica (Movistar). We get same fails like "Call Failed" or iPhone showing full coverage when not entirely true, etc... Although, I think no one mentioned a possible indicator to the draining battery problem, which is Usage statistics. In my case, when the iPhone starts draining dramatically the battery, the "Usage" and "Standby" times always show the same time and obviously it's nothing like that. So, anyone noticed that? Or maybe that's another unrelated trouble?

 

Thanks everyone!!

Yes i ve noticed it in my prvs phone.

Now with the second phone im about 5H20 of use and 1D2h standby with still 19%of battery.

Its too preety to be true, but so far 0 problems

edit:

obviosuly this phone seems to be 3x better than last one: verry correct quality of voice in call, better audio quality with 0 strange noise and even louder volume, push work verry correctly so far its very nice

I paste here the caracteristics of the OLD and NEW ones:

OLD:

Serial number: C39GGBT.....

Name: iPhone 4S

Model: iphone_4S

Group1: iPhone

Group2:

Generation: 6

ModelCode: iphone_4S

Machine Model: iPhone4,1

Model introduced: 2011

Production year: 2011

Production week: 39  (October)

introduced test: GOED

CPU speed: 800MHz

Family name: Become a pro user to see this information. (sorry)

Screen size: 3.5 inch

Screen resolution: 960x640 pixels

Colour: Black

Capacity: 16GB

Factory: C3 (China)

NEW:

Serial number: DQGH....

Name: iPhone 4S

Model: iphone_4S

Group1: iPhone

Group2:

Generation: 6

ModelCode: iphone_4S

Machine Model: iPhone4,1

Model introduced: 2011

Production year: 2012

Production week: 2  (January)

introduced test: GOED

CPU speed: 800MHz

Family name: Become a pro user to see this information. (sorry)

Screen size: 3.5 inch

Screen resolution: 960x640 pixels

Colour: Black

Capacity: 16GB

Factory: DQ (China)

Thanks KAMiLL!! So now with your new phone, Is it working everything fine? Including Call failed problem? So you would say the battery usage time problem is related with the Call failing right?

Thanks again!!

Hi guys,

I take the opportunity offered by "trick5" to continue my experience with firmware 5.0.1 (9A405 and 9A406) and iphone 4S after Apple Store replacing the first iphone to dropping network after update.

I live in Italy and my carrier is WIND.

As I told you, the issue of dropping networks are no longer occurred with new iphone, but the phone battery went down dramatically without making calls without using mail or the Internet.

In the standby mode , the duration was 6.5 hours with the following switched mode:

WiFi: ON

localizzation: ON

cellular data networks: ON

(the same that i use as shop the first one iphone).

The iphone became hot too !!!

With these premises are returned to the Apple Store and they replaced the phone again.

3th Iphone 4S -

Also the third telephone with the same mode has a duration of battery was about 6 - 6.5 hours.

At this point I run the test, with the same configuration also on two other iphone 4S who had not the problem of the fall of signal: Even the two iphone (firmware 5.0.1 9A406) have a dramatic drop of the battery.

I have observed that simultaneously with the decrease of the battery, the phone looks hot, as if it were always in use.

I observed that in the settings, general, info, and diagnostic use, there are continuous connection to the telephone network for data exchange.

At this point I simply disabled: cellular data networks, and the battery life is approximately 34 hours of standby time.

I observed that in the settings, general, info, and diagnostic use, there are continuous questions to the telephone network for data exchange.

At this point I simply disabled: cellular data networks, and the battery life is approximately 34 hours of standby time.

It is clear, in my opinion, that this firmware cause, depending on the model of the iPhone 4S, at least three types of problems:

1) dropping network

2) dramatic battery reduction.

3) accidental downloaded mail deleting

4) accidental APN deleting.

At the time that active cellular data networks manually each time I need it and the battery dua about 24-26 hours.

I hope that the new firmware restore at least the same condition of 5.0.

regards

Fail again

Im soo ******

Hello! I had the same prolem with my 4s after i updated to 5.0.1 the problems started to show, that same day i went to my carrier (Telcel, Mexico) and that same day they gave me a new iphone4s (seed stock) with the 501 Preinstaled, i recommend to everybody to stop finding the solution to this and go to your carrier and ask for a phone swap, its the easiest way to fix this problem.

well I lost my patience and returned the phone for servicing. so i'll see how about the new phone

Got new iPhone from service. Seems to work fine so far now. My advice is to stop tinkering with workarounds and instead of that send phone to service and demand new phone.

Hello!!

I have the fear that new iphone will still be old stock from 2011. It seems like the new stock from this year is working fine so far, right? I already got a swap, is there a limit for swapping? New iphones come to Spain from the netherlands stock, so is there anyone who got recently a new 2012 iphone from the Netherlands apple care?

Thanks!

@trick 5

I have received my new iPhone 4s 1 Februari 2012, im living in the Netherlands.

Serial number: ************

Name: iPhone 4S

Model: iphone_4S

Group1: iPhone

Generation: 6

ModelCode: iphone_4S

Machine Model: iPhone4,1

Model introduced: 2011

Production year: 2012

Production week: 2 (January)

introduced test: GOED

CPU speed: 800MHz

Screen size: 3.5 inch

Screen resolution: 960x640 pixels

Colour: Black

Capacity: 64GB

Factory: C3 (China)

To ALL (PROBLEM SOLVED)

iPhone 4s 32 GB Black

China also C3 as I remember

Firmware 9A406 updated from iTunes

I put the little tape on the little space on sim holder so sim chip the golden thing doesen't touching the rim.

And this is stupid thing that u have to take a good care card holder along with the micro sim have to go smoothly to the phone take a good CARE how u are putting the card in. Once it get in glide the finger on the side where is the whole for the card and if the card holder is practicly more inside then the side of the phone u're good to go...

TRY IT and post !!!

Cheers

And respect for the guy that told me this...

Hello guys,

How could I know all detailed information such as ( Factory:China, C3, etc . . . )

Thank you,

Update

My phone is now working much better, even when I change location I didn't have network lost nor sim card failure, but it still's bug sometimes, specialy with an outgoing calls or message's.

Anyway try with the sim and good luck to you all.

Hi all,

I'm in Saudi Arabia using STC network, i tried everything with Apple to solve this problem without any luck, so they desided to replace my iphone.

Finally I received my replacement iphone today and so far so good, everything seems to work perfect (knock on wood). The new iphone information:

Serial number: ************

Name: iPhone 4S

Model: iphone_4S

Group1: iPhone

Generation: 6

ModelCode: iphone_4S

Machine Model: iPhone4,1

Model introduced: 2011

Production year: 2011

Production week: 44 (November)

introduced test: GOED

CPU speed: 800MHz

Screen size: 3.5 inch

Screen resolution: 960x640 pixels

Colour: Black

Capacity: 16GB

Factory: C3 (China)

I'll keep you guys updated if anything changed.