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iPhone 4S drops 3G, have to restart phone to get it back

I'm using my iPhone 4S on the O2 (UK) network. I've noticed so far, twice that the iPhone 4S does not show any 3G (or edge even) connection at times. When I restart the phone it picks up a 3G connection immediately.


Anyone faced this issue? I'm not sure if its a carrier issue or something wrong with my hardware?

Posted on Oct 19, 2011 1:20 AM

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170 replies

Nov 16, 2011 1:25 AM in response to Iphonelover101

Hi!


On page 7 I told that I was going to drain the battery and then use the app Battery Doctor, and let it "trickle charge" over night. I did this yesterday!


I got up at around 7.30 in the morning (100%) and started to read some news and mail and watched a small youtube video. Started a radio app on airplay, and let it play during shower. Then got out of the house with audio app playing when going to the office.

I noticed the 100% stayed quite a long time while doing some of the forementioned things, but started to drop. When I got to the office, I was down at 95%.

During office hours, I had a few calls and surfed the net and checking out a few apps.

After work (around 16.00) I was down at 85%.


Then listening to audio while I got to the gym. At the gym, more audio and updating RunKeeper; use for about 1.5 hours.

When I got home at about 18.30, I checked Usage settings, and it told me usage 5H 47M, and my battery was at 67%.


When I got to bed I think it was down at 50-something%. I think this is better than before the use of Battery Doctor, but it could be "placebo", but I hope it´s getting better.


During the day, I had fiddled with the sim pin again, and this made it drop connections again, even the WiFi! Had to do restarts. Going to disable pin via another phone again, since this worked for me earlier.


Recent news claims there is in fact just a software problem, so I hope Apple pushes another update as soon as possible after locating the bugs!

Nov 18, 2011 2:39 PM in response to turimblar

On one occasion, my iPhone 4S was having 3G issues even though I had the 3G icon on my phone. I couldn't figure out why my phone was having this issue. I attempted to hard reset a few times and it didn't work. What ended up working for me was turning on and off Airplane mode. I haven't had any issues since.


My wife's iPhone 4S on the other hand has had the 3G issue twice now. Both times turning Airplane mode on and then off has resolved the issue.


I hope this is not an on going issue but it sounds like it might be.....I'm super glad now that I purchased applecare+ for both mine and my wife's phone.

Nov 21, 2011 12:53 AM in response to antti17

I think it´s really strange, but every 1-2 days, both 3G (+Edge) and Wifi will still show in the menu as active, but is not working – no net for me!

Has to restart to get connected again! Extremely annoying!


And while my battery seems to last longer than for others, I think a drain of 5% during morning hours is quite more than my iPhone 4. I hope the release of 5.02 is ready soon. Rumor says it´s gonna be out this week. I´d like it as soon as possible.


I really like my new iPhone 4S, but I didn´t pay up an unlocked phone to not receive calls!

I feel to return my phone if the next update doesn´t solve the problem...

Nov 22, 2011 4:36 PM in response to irfanhab

Having the same problem!


iPhone 4S

AT&T California (Los Angeles)

Strong signal w/3G icon

No data connection!


When I restart the phone, it works again. This has happened multiple times.


I've only had the phone for about a week. Should I return it? Or wait for an official acknowledgment from Apple? It's okay if it will take a few weeks to fix via a software update.. I just want to know it's a software problem and not a hardware problem.

Nov 29, 2011 4:12 AM in response to irfanhab

Same thing in Belgium with Proximus 3G on my IPhone 4S

I need to reboot my phone to get it working, then it works, then I use wifi and then it doesn't work anymore,

reboot again..


I've seen this only after my IOS5.01 upgrade; not before


So IOS 5.01 = battery problem "kind of fixed" but "messed up 3G"

Dec 4, 2011 6:33 AM in response to irfanhab

I am having the same problem, Got iPhone 4s from UK using in mumbai with tata docomo network .... Using edge works perfectly fine but as i go in a no signal area or keep the phone aside for few hours the edge doesnt works .... The edge logo shows up with signal but i cant browse .... Then i switch off airplane mode on off and it works back also happens when i am on a wifi and when i switch off wifi connection the edge doesnt works :( really annoyed.

iPhone 4S drops 3G, have to restart phone to get it back

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