I m having an factory unlocked iphone 4S and i starts losing my signal bars when i take out my phone from case (bumper) and sometimes in case also when i hold my phone with some force its again starts lossing its signal bar Is any 1 having this problem ..?i m having iOS 5.1..!
Info:
iPhone 4S, iOS 5.0.1
I've got a N97 mini and notice that I keep losing the signal. I can be sat there, the phone won't move and yet I'll go from 4 bars to virtually one/none at all. I had a similar problem with another N series and apparently it was to do with the internal antenna.......I'm sure its not the network as was on 3 before changing over to O2 and had same issues ! Also does anyone know if the CR 116 will fit the mini as well ?
View 29 Replies View RelatedI need help getting cell tower reception on my phone. Using China Unicom as Network Carrier. I am located in Guangzhou China (a major metropolis). The problem is not with the SIM Card itself because it has been tested and placed in other phones & it works well. Reception Bars fluctuate between 0-2 bars at most, both in and outdoors.Have noticed these problems since upgrading the phone to IOS 5.0 & now also on 5.1.1. No problem with Wi-Fi Networks. I have also tried Resetting the Network & taking out the SIM Card and putting it back in, but this has not helped.
Info:
iPhone 3GS, iOS 5.1.1, Model MC637ZA Serial 83028W5VEDG
Anyone else experience this? I did th sotware upgrade and a few hours later this happened. I tried manually connecting to the network and it wont. T-mobile asked me to send the phone back but there is a major scratch on the screen so they told me my return warranty was void now.So far I have a $400 paper weight. Anyone fix this issue?
View 1 Replies View RelatedI was wondering if anyone knows what algorithm is used for the signal bars on the Photon 4G. I have found that there seems to be no correlation between the signal strength (in dBm / asu) in Settings -> About phone -> Status and the signal bars that are shown. Often the signal bars will shoot from 1 to 5 or 6 even with really low signal ( ~97 to > 100 dBm) that doesn't fluctuate.
View 3 Replies View RelatedI'm an engineer, and a collegue of mine has a friend (tedious link I know!) who works for a mobile phone manufacturer as an engineer. His take on the whole atenna issue is the following:
1. Sticking your hand over the join between the atennae short circuits them (we all knew this!)
2. The short circuit causes the two small antennae to form one much larger one (obvious I know...bear with me!)
3. This larger antenna has a different frequency to the small one.
4. The phone detects this and switches between frequencies.
Sounds simple in practice, but apparently it takes an age for the software to switch between the two frequencies. My guess would be this is to prevent the phone from hunting between signals. This could indeed be what Apple were talking about when they mentioned that the new phone placed lower demands on the network.
For the sake of making things easy to understand, have a read through the two artciles on Wikipedia and HowStuffWorks:
http://en.wikipedia.org/wiki/Cell_site
[url]
Basically, a Cell Tower has a finite number of frequencies it can use and assigns your phone to one of these frequencies. As you move around however, you'll be assigned different frequencies on different towers depending on what's available. As you can imagine, if a phone is super sensitive to variations in signal quality, it can reach a point where it jumps continuously between cell towers, placing high demand on all the switching hardware in the network. In reality, the user wouldn't notice any change in call quality if it stayed on one tower. By placing a delay in the frequency switching on the phone, your call will no longer be shuffled around towers constantly and will instead stick to one cell tower for longer, reducing the amount of juggling the network servers have to do and hence reducing dropped calls.
Here in lies the problem. When you change the length of the antenna on the phone, you cut out it's ability to see one segment of frequencies. The phone then starts looking for another available frequency. This now takes forever. Although the frequency may well be avaible, by the time it's found it, the call has been dropped as the slightly weaking signal it is expecting as you move away from the original tower has completely dissapeared.
The design of the antenna is undoubtably a fundamental design issue, which has somehow been overlooked or ignored. Let's not get into the politics of that here. What this does highlight however is that, if the delay between frequency switching is removed, reduced or in some way made smarter, the switch will be so quick, it won't have any noticeable effect on your call as it will just be another frequency switch similar to that between a towers.
Well I have found a way to easily switch your signal bars on your status bar from regular bars to db's and back whenever you want. Well I'm on the latest beta of 4.1 (8b5097d) on IPhone 4 and it does have feild test (maby it's just because I restored from my 3GS but idk). So go to your phone app and then to the keypad. Then type *3001#12345#* and press call, this will put u in field test app. At the top I can tap the bars and it will switch to db's and if tapped again it will go back. So once u tap to change to db's hold the sleep button till slide to power pops up then let go of the sleep button and hold the home button (this is a respiring). Once u do that u can just easily tap the bars or db's and switch where ever you are in your phone. Good luck hope it works on all your phones. And ps you don't need to be jailbroken!
View 24 Replies View Relatedi have an iphone 4s unlocked on ios 5.1.1 and i can not receive no calls or make call
Info:
iPhone 4S, iOS 5.1.1
The little 'E' that was next to my signal bars has dissapeared and now i can't send texts, make calls or go on the internet.
Info:
iPhone 4
I have been having this problem a lot since I got the phone. If I am out especially in building where it shows good signal it take it forever to load data. text goes through fine but data takes forever. Much slower than my 3GS why is this? Is it my phone or are others getting this?
View 24 Replies View RelatedI received my iPhone 4 on launch day via a pre-order. I am very grateful to have it and to have received it while others still try to get one. Anyway, onto the issue. I had signal drop issues from the get go, occasionally even a few dropped calls. Per Apple's statement and other blog recommendations I bought a case to alleviate the issue. It's the Griffin Reveal. It is a nice case too. Last night I noticed low signal bars after a dropped call and realized I was holding it over the left corner. I let go and up went the bars.
I called care. They opened a case # and gave me the same as anyone else. I was told that I needed a bumper to fix the issue, that they couldn't guarentee with any third party case it would fix the issue. I responded asking why I should give another $30 to fix an issue they know about. I asked if I would recieve and email or call to follow up and they said they didn't know. I will follow up in 2 days and let you know. Is this a ploy to just get people to spend more money? 1.7 million sold in three days x $30 for a bumper = $51 million more for.
I have been searching for a way to remove or hide signal bars in ios4. I will often have very low bars and keep looking & thinking about it. But most of the time my IPhone 4 works as I need it to. I would like to remove or hide the bars, out of sight out of mind.
View 18 Replies View RelatedOn my 3GS the signal bars are sporadically cycling down to one bar, then searching, then no service, then back to full 3G bars. All this happens in about the time span of 10 seconds or so. Anyone else have this issue on a 3GS that's jailbreak / unlocked! I've removed the blackrain app off the phone, winterboard and the issue continues to persist.
View 14 Replies View RelatedSome times my phone stops making and recieving calls. It looks like it is working, shows it has signal on the bars, for a while, then they disappear.I have tried hard and soft resets and restoring the phone. Usually if I leave the phone over night it starts working again in the morning so I figured it might have been a carrier issue. I am using GiffGaff but the phone was purchased directly from Apple and is factory unlocked. When this happens, if I make a call it looks like it is about to start making the call, but never changes; If you his the end call button it says Ending call... but freezes like this until you restart the phone or kill the phone app. I have tried my sim in my wifes phone and it works fine, I am unable to try anyone elses as they don't wish me to butcher their sims My phone acted exactly like this once when GiffGaff had issues one weekend, once they sorted their issues it has worked fine since.
I am a good 70 miles or so from a Genius bar and never really wanted to send the phone away in the post, as likely it'd take over a week to get it back, how ever, as my phones no longer functioning as a phone, I guess it isn't much of an issue any more If I could fix this myself I think it'd be great but I have started to get the feeling maybe it is some hardware issue with the phone.
Info:
iPhone 4S, iOS 5.0.1
I have been experiencing too many call failures lately. It seems that I have enough bars. If I do a hard reset, the phone acts better for a short time, then the call failures come back. I have ATT.
Info:
iPhone 4, Mac OS X (10.6.7)
my iphone 4s i was using one week, after shuting down signal can't get, it's showing no signal on network bars.change few sim card none of them it's connect. I try with update software 7.1.1, after update still no signal. I activate phone with sim card of t-mobile macedonia. and still searching for signal
View 7 Replies View RelatedMy iphone 4s was working fine then stopped making calls. It shows 02 as carrier but no signal bars. I swapped out the sim and tried it in my husbands spare iphone 4s and it works fine. I have done a reset 3 times now.
Info:
iPhone 4S, iOS 7.1.2
iPhone keeps going from 3G to Edge and then showing no bars. And after I turn off cellular data and put it back on to get back 3G it loses all bars completely and goes to "searching.." and then finally "no network"Â and then I have to manual search for my network. Whole problem starts happening all over after connecting again.
I have an iPhone 5 with latest OS 7.1.2
Info:
iPhone 5, iOS 7.1.2, Carrier: Digicel (Caribbean)
I have been pretty happy with my iPhone 4 up until today but I have discovered a bit of a problem.When I touch the bottom left of the phone the signal drops 1 - 2 bars.It has not been dropping calls but I dont think my phone should be doing this. Is anyone else experiencing this issue?
View 19 Replies View RelatedSignal strength varies from 5 to 0 bars at the same location (home). Drops calls.
Info:
iPhone 4, iOS 5.1.1
I got a blackberry curve 8520 and I charge it all night and its fully charged and then after it loses 2 bars it goes to a white screen and I can't do anything. When I take the battery out and but it back in it goes to the loading thing with blackberry when it gets to half it goes to the white screen again it seems I have to keep it plugged in 24/7 and its up to date with its software and iv tried lots of things
View 1 Replies View RelatedMy battery icon from time to time moves to the left. I've done some search but couldn't find if anyone else is having a similar issue. I'm on 4.0 iphone 4 stock. Jailbroken, Unlocked. I'm not sure if I remember this occurrence before the jailbreak.
View 20 Replies View RelatedI am having an awful time loosing cellular data - can't send or receive text messages, use Safari or Find my Friends etc. I came into the forums looking for help and found posts about the personal hotspot constantly spinning. I looked at mine and it was too. I did a hard reset and it finally stopped. Immediately I got connectivity back. I don't know if that is causing my loosing internet or not but it seems coincidence that when it stopped spinning I got it back.Simply going into and out of airplane mode and toggling cellular data on and off never restores connectivity. Often it will restore when I leave the building. But I have 3-4 bars of signal and 4G listed as available when I'm inside.Also, something is chewing up my battery. I was at 100% when I left the house at 8 am and at 65% at 10 am with the phone sitting on the desk doing nothing.
Info:
iPhone 4S, iOS 5.1.1
I need an external antenna to boost my signal in my basement, I was messing around i discovered this antenna attachment under a black sticker. I don't know whats the connector for this called, any help?P.S samsung doesn't mention any external connector in the manual
View 1 Replies View RelatedI was wondering if there's any library in X-code that lets you use iphone's antenna to emit any kind of signal (of course in the frequencies this antenna has been designed for) without using the tipical protocols for GSM , Wireless or Bluetooth communications.
Thanks!
I have the Nokia E71 On O2.
When i hang around with my mates, the have normal Samsung Or LG phones and they get lets say 4 bars of signal on O2.
I will be standing with them and i get nothing. I feel like my nokia phone is just rubbish on this part.
Or would there be some setting i need to change for it to work? - Or is the phone faulty?
I purchased an unlocked Sony Xperia Z3 yesterday. I placed my sim in it but the phone keeps saying that there is no service and there is currently no bars. When I try to call it says I am in flight mode even though it is off. I had a friend who had this problem but it fixed itself.
View 9 Replies View RelatedThe wifi antenna regularly turning itself on to check for signal is a cool feature, but it opens over running applications causing the background application to freeze (most notable with my flashlight app) or run without me and not accept any input (many games). Set this to only request to connect to a network if no other apps are running.
View 5 Replies View Relatedyesterday morning my Sony z3 was working great when all of a sudden the signal dropped and said no service. It has been 24 hours now and still nothing. I restarted the phone many times, did a factory reset, updated software, fixed software and left it off for a while.
View 2 Replies View RelatedI've had an iPhone 3GS on Orange since April 2010, and am waiting to upgrade until the 5 (or whatever they call it) comes out later this year. I've always had a full 3G signal in my house since I have had my iPhone. Around 3 weeks ago, I suddenly noticed one evening that I had no signal, I put it down to a local reception problem or something and ignored it. Later that evening though, I realised that my wife, who has a Blackberry Curve also on Orange, still had a full signal. I also have an iPad 2 3G on Orange, which had full signal still, and then my brother came round with his iPhone 4 on Orange and again had full signal.
The next day I was driving to work and suddenly my signal reappeared, pinging in half a dozen texts and missed call alerts etc. Then when I arrived at work (where I usually get 2-3 bars of signal) again my phone showed No Signal. One of my colleagues has an iPhone 4 on Orange, and sitting on the table right next to my phone was getting 3 bars of 3g signal, where I had nothing. Walking around the town on my lunch break I managed to get 1 bar up and get a text in.
Over the last few weeks this pattern has repeated. I can still go to some places where I can get a full 3g signal. Sometimes I'm driving and the signal comes in for a while then goes. Sometimes I go to larger towns and get a full signal easily. However mostly for the last 3 weeks I'm getting no signal. When at home, if I go out of my house.
I have tried a normal restore, a reset and a DFU reset. Funnily enough these all seem to make it suddenly work again at home for about half an hour, then it disappears again. I've read about some people having a problem with jailbroken phones, but this phone never has been. I'm guessing there could be something wrong with the internal ariel, but it puzzles me why it still sometimes picks up a signal. Is there a signal amplifier in the phone that could have gone wrong and it's making it harder to find the signal?
Info:
iPhone 3GS, iOS 5.1.1
I've been experiencing this strange problem for few weeks with my N8. When I'm receiving or making a call,network signal level drops from full to 2 bars. Happens only when i hold my phone from its lower end(where menu button is located). As long as i hold phone from its upper end(where audio jack is located), signal level is maintained to full bars. Such fluctuations don't occur when phone is lying still somewhERE. Signal starts dropping only when phone is held by its lower end. Happens while accessing 3G too. Is this a normal thing? I checked after changing SIM and switching to another network provider. Still the same.
View 5 Replies View Related