iPhone 4S dropping network and data at random

I've given up. Since the update did not fix this problem, I am sending my new phone to Apple.

Really terrible from Apple to leave so many people out in the cold.

They should recognize that this is a common problem, either do a recall of faulty phones or come up with a solution. But now with this new update, god only knows when new update will happen and if it will fix this problem or not.

I am well disapointed. Have we got at least 1 message from support on this thread??

I hope this problem gets some type of recognition soon, seems like Apple isn't aware of the issue.

Hi, I am from Slovakia and my surroundings have the same problem with a lot of peoplecrash the network. Problem also applies to me. coming off the call, coming off a 3G network, etc.

I appear to have the same problem but removing the sim lock didn't fix it.

Am connected to the UK Orange network, it worked absolutely fine until the 10th and then the problems started so i don't believe it's a phone issue. When use General>Network and disable mobile data the problem disapears and i can maintain a solid connection to the network. when i set the slider to on it instantly connects to the 3G network (i'm in a great reception area). but within 30 seconds it drops to "searching" and continues doing this every minute (or less).

Orange also have an arrangement with T-Mobile currently in which we can use either network. I was advised by Orange that to resolve this problem i should restrict the phone to T-Mobile. I did this but it did not resolve the problem. The only way i can keep the mobile connected to the network is to disable mobile data.

Orange advised that they are upgrading the network towers in the area and it is their assertion that the problem is their network. But given the number of other users experiencing problem, this would appear to be unlikely. I also don't see why it would be a hardware problem given that the phone was fine from purchase until the 10th November.

the same problem here!

what worked for me:

first: settings, phone, sim pin. change the original pin number & then disable it.

second: settings, carrier, disable automatic & then choose your carrier manualy.

third: after doing all the above, switch off and on your iphone.

that works for me so far...

hope for an official apple solution.

soon.

The same problem here!

Help us, Please.

Have all the issues above in sweden using tele2

tried all the things above, called Apple support and was asked to remove sim pin, flight mode, resetting the phone.

Nothing has helped. The thing that irritates me the most is that these problems are not recognised by the support team at Apple.

I´m having my phone replaced but as my operator told me, it´s most likely that I will have the same problems with the new one.

I cant go back to my old 3gs since I had my sim card replaced to a micro...

Please solve this issue not just ASAP, but rather yesterday!!!

After 5.0.1. my phone (4s) has gone from bad to horrible.

Now it mostly "No Service". (I'm on LUXGSM; not great 3G coverage.)

Obvoiusly there is something wrong with the modem/antenna/sim thing. It always took a long time for the phone to sim-unlock after PIN was inputted. It didn't allow me to disable pin-lock on the SIM so I did it from my old iPhone 4. Now the SIMcard is unlocked on the 4s but still same issue.

I've done a full-restore as new phone into 5.0.1. Disabling cellular data doesn't help.

My model is: MD242FB, Modem Firmware: 1.0.13

Would be interesting to get other ppl's model nr and modem firmware. Also from ppl with phones that actually work !

modemfirmware 1.0.13

ios 5.0.1

(had the same issues before updating from 5.0)

My model is: MD242FD, Modem Firmware: 1.0.13, French operator, failing

I am from philippines and the same problem with my iphone 4s. It keeps dropping its network signal

and the battery is really a joke, my 2,5 years old 3gs had almost the double capacity. The 5.0.1 update that was supposed to fix the battery issue made no difference.....

Hi, I have similar problems. Got 2 Iphone 4S on thuesday 8. of november, had 2 Iphone4 before, only switched the simcards, no problems for 3 days. On Friday morning 11/11 I upgraded to I.OS 5.0.1 on both machines.

One is a 16GB the othe a 32GB . After the update, the 16GB keeps dropping its network for no apparent reason. Network is LUXGSM here in Luxemburg. The 32GB Iphone4S is working properly, no problems detected so far. For me the problem is clearly not a malfunction of the Iphone's antenna, but has something to do with updating to I.OS 5.0.1 . Before , both Iphones worked well, altough they were quit power thirsty...but this could be because they were brand new. What are we waiting for now ? Another update to fix this issue ?

Same problem here in the netherlands.....

Model: MD235DN

Modem firmware: 1.0.13

Rubeschinsky: Can you check if your phones have the same Model nr. and Modem Firmware ?

Mine was working quite well the first days but the battery was bad. Now the battery is even worse and on top of that I have "no service" most of the time..

So far, everyone has said they have modem firmware 1.0.13...