Q: iPhone 4S loses signal

Same problem in Vetnam.  The Apple designated tech support in Vietnam said that of the Iphone 4S's that he sends out for replacment to Singapore, 80% are related this this issue.  Of those, he sends more than 20% back again and again with the same issue.  He thinks those that don't come back a 2nd time are just waiting for the 5.02 update.

This problem is rampant.   I love apple. This is really hurting their reputation and spreading quickly amongst the EXPAT community.  I am a stock holder and still believe in their company and their products.  Please fix.

Same here, new iPhone 4s 32 on T-Mobile UK, no signal, no service, not had a problem with sim card though. Am currently living in a weak signal area, although this posed no problem for my old HTC, nor does it cause a problem for my very old Nokia. However the iPhone, looses the weak signal and will only regain if I take the phone upstairs and leave on a window cill..... Its not the carrier or sim guys, its the phone, have done everything, running on the 406 build of 5.0.1, turned off all services. Will momentarily regain a signal if I restart, but fails after a few minutes, strangely my mates iPhone 4 just about holds onto signal and works ok..... But then he is on Vodaphone, and uses the inhouse signal booster via the wifi, whats going on?

My need to make calls and stay in touch is greater than my need to have a fabulous gadget like the iPhone, I own and use a MacBook Pro, iPad and iTouch, love apple and my Mac. It seemed like an obvious choice to migrate to an iPhone, and this is my first. However today, have returned phone to T-Mobile, getting the new Samsung Galaxy S2 which I know doesn't have the connection problems.

Sort it out Apple, its supposed to be a phone, instead its a very overpriced iTouch which sometimes can make calls. I am not alone here, I know quite a few others on various carriers experiencing similar problems with different iPhones, trouble is, they are truely fabulous and so very hard to not actually want one. I will wait now till they produce a phone that works, properly. Till then its back to Android.

Alas you have fallen into the trap, the iPhone is without doubt a sexy bit of kit, but its not a very good phone, not that any iPhone users will admit to this. Dump the iPhone and get a decent Android phone, wait, eventually Apple will pull finger out and release the iPhone 5, just perhaps this will actually work as a phone. Leave it a few months till all the build updates and stealth bug fixes have gone out and the phone is deemed stable, buy new iPhone 5...... easy.

I have just returned my iPhone 4s, it just isn't any good as a phone, brilliant at everything else. I tried everything, every update, setting change, every trick I could find on the web..... To no avail, and before some idiot says, its your carrier, or your sim....... Wake up fools, if no other phone has the same problem, then the fault is with the phone.... If you put petrol in a diesel car, and in a petrol car, one will work, one will not..... its not faulty petrol!!

Same here buddies..twice in a Day i lose signals and returns back automaticaly.

Location: Dubai, UAE

Carrier: Du.

I did two things I read in some websites on the web and I can report that the issues are gone, I restored my iphone using itunes and I also asked my carrier for a new sim card, I don't know which one fixed it because I did the two of them the same day. That was about 5 days ago, if problems come back I'll update to this discussion.

Reset the network settings.

Settings > General > Reset > Reset network settings.

Works every time.

Sorry, thats a fix how? Tried this and just about every other combination, still would not stay in service in a weak signal area, of course I could just move? All because of a phone..... don't think so, will just wait till Apple get act together and bring out a phone, yes a phone that behaves like a phone.... as for the 4s, just read through, issues abound, but of course due to vanity few will admit it!

I have been having a problem where my new iPhone 4S freezes for a few seconds and it loses the connection with the carrier, but the wifi connection remains active.  As soon as I lock the device using the sleep button and then unlock it, it reconnects.  This has happened quite a few times.  Has anyone else had this problem? I am on Rogers in Canada.

I have been having a problem where my new iPhone 4S freezes for a few seconds and it loses the connection with the carrier, but the wifi connection remains active.  As soon as I lock the device using the sleep button and then unlock it, it reconnects.  This has happened quite a few times.  Has anyone else had this problem? I am on Rogers in Canada.  I probably should mention that when it loses the carrier connection that it says "searching."

I have the same problem. Go into airplane mode and out to fix it. With Virgin mobile in Canada ( they use the Bell / Telus network )

Same problem as others- iphone 4 on ios 5.

Has anyone tried updating to 5.1? Does this help?

I forgot to update. They replaced my phone with a new one. Problem solved.

I updated to 5.1 three days ago. That seems to have sorted the problem.

My phone still loses signal (I live in a very poor area for reception) but now appears to have no trouble refinding the singal when it is available.

Only a few days, of course, but things are looking good.

nope i just did that but nothing changed.

the phone still loses signal every a while and then re-connects.

it really drives me crazy.

I am really regretting buying an iPhone. I had all the features and better connectivity at 1/4th the price in my previous phone. I was used to my previous phone which makes my previous phone more comfortable for me. This is my second apple product and I have decided not to buy anything from apple. I am blowing out all plans for mac book and ipad.