iPhone4 4.3.3 Weak signal,Dropped Calls..

Im having the same problems as well, with the iOS update with the 4.3.3. I am not able to connect to my wi-fi or anything... this is a pain... I want this to be fix and Im sure every one of you as well.... And my phone is like brand new, only 2 months old... I love Apple... but please get a new iOS update and fix the bugs....

Ya Same problems here. Since I updated to 4.4.3 , I cant get calls to go through most of the time because reception bar jumps uip and down randomly and then I get no service msg aswell. Also have ppl complaining they can hear me when I call them like im really quite. Also a call will drop a couple mins in but if I call back then it works ok. Most of the time it just wont connect my calls and I talked to my service provider and they said they have had a lot of ppl come in with same complaints since the last update.

Would be nice if we could get a heads up as to when this problem will be fixed because for goodness sake I run my buisness using my phone all the time and to have an unreliable phone is incredibly bad for buisness.

Same problem in Singapore using SingTel network. Before the upgrade it was good. Now I can see full coverage (3G) and immed change to no coverage or fallback to 2G.

I think due to the frequent changes its affecting the battery life too.. Hope Apple release some fix for this soon.

same problem in argentina, ios 4.3.3, i lost the signal evrey time and my iphone is a brick rigth now.

im having these problems to when do you think apple will listen and sort this mess out or i mite as well buy the samsung galaxy s2

I'm facing the similar problem as you guys may have. I bought a white iPhone 4, 16G for my girlfriend last Sunday. It is an unlocked version, commonly sold in Hong Kong. I initially didn't pay much attention to the software version of 4.3.3 untill now. I mean, I was considering the drop in signal might be caused by the faulty hardware. In my case (I'm currently using the normal network service and it isn't a 3G sim), I get "Searching...", "No service" and drop in signal frequently if the iphone is in 2G network, which is 3G switched-off and celluar data on. Once it becomes "No service", I won't be able to get back any signal unless I re-power it (and by turning on and off "Flight mode" just won't work). Well, if I switch 3G on (although it is not a 3G network sim card), I do also get the drop in signal, and occasional "No service", however, the good thing by switching 3G on is that once the signal drops to nil, it re-gains back fairly quickly and it will also work by switching on and off the "Flight mode".

I'm also anxious about this issue, which literally gives me unpleasant experience. Do any one know this issue has been reported to APPLE yet?

I think apple is either busy with 5.0, or they just don't care with the 'minor' problems.. I started to hate the experience.. It's getting worse with the 3G indoors ..

I expierienced some problems like the one mentionned above:

After having a phonecall of 5-10 minutes in an area where there is a weak signal (1 or 2 bars) the screen of the iPhone 3 GS goes black, after a few seconds the apple-logo comes up and it lookes like the system is rebooting. A few minutes later the system behaves "normal".

I never suffered from this phenomena in an area where there is a strong signal from the provider (Vodafone in my case).

I got the problem for the first time a few days after I upgraded from OS 4.2 to 4.3.1. I run 4.3.3. at the time, but de problem is still with me.

This is poor quality software combined with poor quality service.

I just purchased a White Factory Unlocked iPhone 4 32GB (4.3.3) for my sister about a week ago.

On that same day when i bought it, I activated it at home and started to sync it with iTunes and use it; but when I tried to make a call I realised that the signal bars were considerably weaker than my factory unlocked iPhone 3GS (4.0.2) which I had with me on the same carrier network.

I was getting full signal on my iPhone 3GS but only 3 bars on the unlocked iPhone 4. When I made a call and the other party answered, the called failed after about 10 seconds. I am hoping that it is a software related issue and that I did not buy a defective iPhone 4 from Apple with the same antenna problem.

I don't know it this is mind over matter or i'm just paranoid but when I touch the sides or hold it I see the signal drop from 4 bars to 2 or even 1.

I have a similar problem ( Telus in montreal, Québec). Not long after the update of my iphone 3G to 4.3.3 , my Iphone started to loose the signal, it could not use wifi , its battery life decreased drammatically and it kept crashing... I did restore my Iphone twice from itune. It fixed the problems ( except the battery) temporarely... but after a few hours, the problems came back... If Apple does not fix the problem quickely, i might move to another smartphone...

Apparently, by updating 4.3.3 to 4.3.4 did not resolve the signal related issue on my white iphone 4. I tried out different methods to validate the root, and I could only come up with 2 possibilities which is either my newly purchased iphone 4 is faulty or the 4.3.X series iOS. I wanted to upgrade my 3GS to 4.3.4 to see if the signal problem would affect it like iphone 4, but I just couldn't do it. Any suggestions?

I am a member of the team too and my phone went out of warranty less than 1 month ago.

Iphone 4 16GB (UK - O2)

Terrible reception since 4.3.3

On top of this I hit as well the bug for Digital Audio in the latest update of Snow Leopard. At the moment my Mac mini is running Windows 7 and it works like a charm.

I feel more and more that my Apple's days are over, it is time to

"Think Different"

same problem here. Ever since I upgraded to 4.3.3 my iphone 3GS has been dropping calls like crazy and the mic hasn't been working. People can kind of here me but they can't understand me. VERY FRUSTRATING!!!! Iphone is now an expensive Ipod. Just upgraded to 4.3.4. See if that helps any.

4.3.4 is no better... same problems

Thought 4.3.4 solves this but what a BIG DISAPPOINTMENT.. Same issue and now the battery getting hot 😟