I had upgraded my iphone4 firmware to iOS5.. After i do so, I noticed that my iphone went into NO SERVICE (i.e. no network coverage) mode frequently!! Fyi, i never jailbreak my iphone b4...

Anyone experiencing the same problem? I am a hotlink user.. Whenever i encounter this issue, others' hotlink coverage is working fine..

This post has been edited by road_blocker: Nov 7 2011, 04:02 PM

locked set rite?

nver xperience that wth ios5

I thought locked set you can't use local sim? I guess maybe iOS 5 bug

Oh shit I'm having the same problem too. I thought it was Digi problem. Mine is not JB running on iOS 5. Digi set and I'm not using any number or case.

Please specific of your iPhone spec

Maybe you accidentally upgrade baseband made your carrier locked,

you need ultrasn*w to unlock,

i using iphone 4 and after jailbreak i having the same problem as well.... frequent no service and nid to restart sometimes .......

If it's iPhone 4 it might be death grip. You can test it to make sure btw if that's the problem then get a case it'll help.

Hey same problem here on maxis, but i solved it. iOS 5 no jailbreak.

Go to settings -> carrier -> turn off automatic and manually search for ur network. Problem solved.

I used iOS 5 never face this problem o.O

Try reset settings and plug to itunes to get latest carrier settings.

Yeah, I've encounter with this problem before but only for few days after the update. None so far..

mine is worse.
got problem on activating my iphone after upgrade to iOS 5.
damn.
spent rm100 to sent to repair shop to solve it.
i've tried reds*ow but still failed.

This post has been edited by suadrif: Nov 7 2011, 09:37 PM

But it will not switch carrier or network if you are roaming from 3g to 2g/edge areas. I would say its a temporal solution.

edit.

This post has been edited by DaishiDance: Nov 8 2011, 12:17 PM

Hmm...already using a case since day 1... @.@

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Added on November 8, 2011, 9:48 pmHey, it does work!!! But will that be any consequences? as pointed out by Xin (as followed)?

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Added on November 8, 2011, 9:49 pmHmm...sounds true...then what should I try?

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Added on November 8, 2011, 9:52 pmThat's very lucky of you !!...........mine is working fine for a few weeks after update. Then it came....bugging for almost a week already

This post has been edited by road_blocker: Nov 8 2011, 09:52 PM

I have been experiencing the same thing.
Using iPhone4 with iOS5, never JB before.

Keep on searching for network.
When finally found network, I couldn't send SMS, sms keep in "sending" mode.
I couldn't make call, when press Call icon, phone will hang at dialling mode.

freaking frustrated.
Any help?

I also have this 'No Service' issues after upgrading to iOs5. My place No Service sometimes kena, but with iOs5 cannot recover from it. Now I need to do the flight mode thing if it happens. Sometimes OK, sometimes not.

I will try your method.

Thanks

hey bro..hows ur problem??still happen or solve??

My workplace got restricted areas that are designed to block phone signals, so 'No service' is normal for me...but what is not normal is ios5 doesn't search back for the telco signals after the 'No service'.

Yes...so far tried this morning...its OK...I mean 'No service' still happens, but can recorver from it...no need to go through the flimsy process of toggle around with stuff.

I wonder why need to set it to 'Manual' at achieve this.

wow...maybe its becoz of the system that blocks the phone signals...

I'm also having the same issue.

iPhone 4 on iOS 5.0, Maxis set, non-jailbreak.
Starting 2 days ago, the signal became weird. My house area signal is quite bad, but the problem is once the signal lost, it will never be able to connect back (forever Searching... or No Service). The only solution is restart the device.

I just restored my iPhone. The problem seems gone for now. Hope it won't come back again

ive noticed it too.. u really sure becoz of ios 5, the signal sometimes missing?

but yeah.. since upgraded to ios 5.. ive suffered the same problem too..

is it a bug issue?

It is not a bug.. U tried turn OFF 3G.. This is know issue for Maxis.. If u turn ON 3G and your area the 3G coverage is low.. It will affect your signal to no service.. Turn OFF 3G u will gain FULL BAR..

so it means if my area the 3g coverage is low i cannot get 3g coverage at all if i turn on 3g rite??

So far for iOS5, after selecting 'Manual' setting its OK for me...unlike Automatic setting..

Dunno why Auto setting cannot lock back to the telco...

Thanks for all advice.

No my 3G and Cellular data is both OFF all the time (my free data plan is over)
And I did mention my problem is:

Before this, when the network is lost, it will automatic find back the network and connect back, or I can manually search for network to connect
And now, once the network is lost, no matter how long I search for network, there will be no result (even I'm in good coverage area), and the screen only shows searching... And no matter what I do (turn on/off airplane or whatsoever), I'll NOT be able to connect back unless I restart iPhone.

This post has been edited by huiqing88: Nov 10 2011, 02:34 PM

If your 3G coverage is low at your area. And u TURN ON 3G on your phone. Your phone will get no signal.. U can't even make call

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Added on November 10, 2011, 3:46 pm2 possible issue only
1.) Do a fresh restore of IOS 5 again.
2.) Your phone hardware could be having problem

I just purchase iphone3GS 8GB from app store Malaysia for a friend.. And it is shipped with 4.3.5. Just upgrade to IOS 5, no problem at all
This post has been edited by sugen: Nov 10 2011, 03:46 PM

^Dem....exactly same case with me...have to reboot to solve this no signal,sms and dialing problem...

When I fresh upgrade to iOS5.0, also no problem at all.
And I'm not the only one with this situation. Look at most people replying in this post.
I guess this might be one of the unknown bug in iOS5.0.

5.0.1 is out, anyone tried updating it to see whether it fix the bug? If so many people have the exact same problem, including me, i doubt theres something wrong with the hardware.

Anyway some updates, i know i said to fix this problem, turn off automatic searching of carrier, but yesterday, i went bukit tinggi, the reception there is poor, and the phone couldnt connect back to maxis, i tried restarting and manual search for carrier again, but this time it just stuck at searching carriers. Sigh.

been wondering too.. anybody tried the update? how was it.. was the problem gone already?

ive yet to update coz need to wait for the JB software first

thx

Tethered jb is out wat.

Anyway i am updating now OTA, will report back.

This post has been edited by pipedream: Nov 11 2011, 11:39 AM

Man..I'm stuck with 'No Service' since morning...can't do a reset since mine is Tethered jb.
Manual searching takes forever...it will revert back to Auto after a while...
Sure my boss and wife gonna screw me cos cannot contact my handphone today

I hope the IOS5.0.1 is cure the problem

Updated to 5.0.1 since yesterday, carrier setting automatic, no problem till now, touch wood.

Update, it actually more worse than before. The phone shows signal with maxis, people can call in but the f**king phone can't ring. Seriously apple?

I have the same problem too! I was all fine until 3 or 4 days ago and then it got worst! Had been using iOS5 since the day it was available and the problem only started 3 or 4 days ago. I have tried to reset all settings in the afternoon today and everything went back to normal. But, when I got home, the problem came back again! Rebooting / reset network settings doesn't help, so I had to reset all settings again

Anyone knows how to solve it? It is so annoying and frustrating.

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Added on November 13, 2011, 12:51 amI don't think iOS 5.0.1 is the solution. Updated to 5.0.1 last night and the problem is still there.

This post has been edited by naimaD: Nov 13 2011, 12:51 AM

The way I know that solve this problem temporarily is to restart/reset the device... It worked on my iPhone...
But it seems doesn't work on yours... Maybe your case is even worse...

It worked well at first, then on day 3 it got worst, totally non-responsive no matter what I did - reset network settings/reboot. Sigh...........

I tried restoring firmware, just now using itunes, its now able to be called in. Hope no more problem, just now in the afternoon, no matter how many times i restart still got network problem

im using iphone 4 and never jailbreak and having the same issues like you guys, no service or searching signal. i will try using manual rather than automatic search.
i believe is an iOS 5 bug. i have updated to iOS 5.0.1 and the problem is worse.

DUH...

Try doing a fresh restore from itunes. I'd do that too but i need my messages to be intact, itunes doesn't allow me to only restore itunes and contact, which is stupid.

I restored to 5.0.1 yesterday, seems fine, call in call out everything working. shucks iphone.

uhh...wow...5.0.1 is even worst!...got signal telco and everything but still can't make a call

I'm trying the restore method..

Things started to suck since ios5. Best for me was 4.3.3

Yes! Exactly same problem with mine, at a glance seems everything is fine, but the phone doesnt ring when people called in

Same problem that I experience after upgrading to IOS5. Thought my phone got problem. The phone will not reconnect back to carrier once you lose it. e.g. Entering the lift and exiting the lift. You need to restart the Iphone. A complete fresh restore will immediately solve this issue; however, same problem may recur. I have some gut feeling that IOS5 is limiting the reconnection timeout duration to carrier once you lose it. This is to preserve the battery life. I am totally fine before upgrading from IOS4.1. Another possible root cause will be IOS5 is conflicting with Malaysia Telco if all Telco user like DiGi and Maxis are having similar issue. Let's hope this is fixed asap!

This post has been edited by Mini Nici: Nov 13 2011, 05:46 PM

Model: 3gs
IOS: 5.0.1
Telco: Maxis postpaid
Jailbreak: no
Problem: Frequent signal drop/no service after upgrade to new ios.

Restore the phone and ios does not solve the issue.

Best part is u are unable to downgrade legally. Thanks a lot apple. now i am seriously considering to change my ip4 for sgs2.

thanks to pipedream and other users comments and suggestions to temporarily fixing the network signal issues dropping after updating to iOS 5.0.1
i search through the apple forums and lots and lots of ppl complaining about battery issues and the cellular network signal dropping faults. i really hope that apple will look into this seriously as is making users more annoyed and miserable.
Anyhow, i will try to restore back to iOS 5 first as the problem is getting worse with iOS 5.0.1 while waiting for apple to released the new firmware.

I think u can't downgrade to ios 5 as apple stop signing the firmware already.

That's something annoying, no turn back. I start to blame my itchy hand to upgrade to IOS5 to try out the iCloud features.

Oh, i will give it a try and see..thanks for the info.

Me too...i shud have stick to iOS 5, is way better than iOS 5.0.1!!

I have upgraded to IOS 5.0.1. Problem not recur yet. Signal deterioration is not prominent yet. Let's cross fingers and wait.

No worry too much.

Hey guys! i upgraded my iphone to iOS 5.0.1 today...so far so good! problem-free thus far. At least the NO SERVICE issue doesn't happen..

Still observing anyway, hopefully will be fine.......

IOS5 during initial restore, no service issue won't occur but it happens after a few days. Let's observe.

Yup, absolutely agree! will update soon!

Trouble is, with the ios5. It's is no signal. But with the iOS 5.0.1, it's looks normal....but cannot use phone function! Yes Phone looks normal but with the signals and telco sign on . But cannot use phone function.

Previously I was using semi tethered. Now I take it out. Using normal tet version....which sucks if the phone hang. I really hope they cure this.

One way to check whether your phone could reconnect the carrier is to press *#06# to check your IMEI. If IMEI appears mean your phone is okay. If there is no response with this command means your iPhone is not connected to the carrier. People can call you but your phone will not ring. It's like your phone lose its identity to the carrier. That's what I observe. Some time a reboot helps. Some time it won't. A restore can immediately resolve this but possibility of recurrence is there.

What I do is call my own number....if it say 'currently busy at the moment' means ok...but if its completely quiet...like dead...means A LOT of trouble

This post has been edited by azbro: Nov 13 2011, 10:58 PM

The problem is still there and even worst for ios 5.0.1.
Tried on few iphone 4 and 3gs with different telcos already.

today still got problem with network coverage loss... who to report Apple or Maxis?

report both.. both of em' deserve to be nagged to death by their own customers... lol

anyway im still having this 'no coverage' issue.. what the heck is the real problem anyway..

I hate this stupid problem! So frustrating!

The actual problem is with the ios 5 & 5.0.1. Downgrade the ios and problem solved.

I am stuck with ios 5 since i never jailbreak before and never saved my SHSH.

Anyway just try restoring first, its my 2nd day since restoring, never closed my phone, and never had the problem... yet, so u probably need to waste some time doing a restore over and over again if the problem crops back, until apple decided to fix this shiat.

This issue happens to me sometime.

While fb'ing or browsing on Safari suddenly the signal becomes no service then it goes searching and the line is back. Not sure why this happens though. quite annoying but i'll live..

I've updated to iOS5 the day it was made available and did not have the problem at all - until 4/5 days ago.

I've also googled bout it and found that some users at other countries have exactly the same problem way back in 2009 and 2010, so iOS5 might be causing to the problem, but not the actual problem I reckon. (Just my POV, I'm not a tech savy)

This post has been edited by naimaD: Nov 14 2011, 01:27 PM

If you manage to get the network back, then it just simply temporary network loss problem, not the one mentioned in this thread.
Your case should be fine and normal.
The case in this thread is that once you lost the signal, you never able to get back the network.

Don't worry mate you don't have the issue as we do. What we experience is, regardless what is shows (No Service / Searching / My Maxis/Digi) the phone function is not working. U can't make a call, or the call hangs, and when people called the phone is just not ringing/vibrating as if no call is coming in.

I called Maxis just now.

They suggest go to Settings -> General -> Reset -> Reset Network Settings.

So far the signal in my office is back to normal. Gonna test at other locations when i am driving back home...

Now already abt 15 minutes and not a single no service/signal drop issue.

I see, I've just updated to IOS 5.0.1 Hope nothing happens to my phone.

Boo... After 5 days of iOS 5.0 restore, the problem just came back just now

This problem make iOS 5.0 the worst iOS I ever used

I don't mind blue tint; I don't mind antennagate; I don't mind easily spoiled home button; but I can't accept that a phone can't be used as phone
iOS 5 really disappointed me.
And, I can't restore to iOS5.0 now. Thanks to Apple.

This post has been edited by huiqing88: Nov 14 2011, 07:56 PM

Did u tried the restore network settings cokecola76 suggested? I am curious about how useful maxis recommendation are. Mine still haven't show the signs, but i am going on a trip soon, and it gonna sucks if i can't use my phone and only a restore can solve it.

Anyway i am curious, is only the 4 are plagued with this problem? What about the 3GS and the 4S users?

This post has been edited by pipedream: Nov 14 2011, 08:01 PM

I can tell you the result is the same. It's a software problem.
You can check on this thread https://discussions.apple.com/thread/345173...tart=0&tstart=0
All the people there are facing the same problem, and no matter what they did, the problem persist.
And most of them are 4S users. I'm not sure about 3Gs though.

This post has been edited by huiqing88: Nov 14 2011, 08:12 PM

lol yeah. it was antennagate with the 4. and now, whats this? networkgate with the 4s? I can't believe apple did not even respond to the problem since its been plaguing us since the 5.0. Sigh, looks like i better use my old spare phone for the trip instead. Thanks for the headup though

Antennagate was actually not a serious problem, just that the media exaggerate it as a HUGE flaw in iPhone 4.
I can live with that, since I will certainly use a case for my iPhone 4.

However this time, the network problem is not only on the 4S, it's on the iOS 5 itself.
And yet Apple still does not respond to it until now.

Seems am not alone, after going for 5.0.1, my 3GS and wife's 4 couldn't signal when we're at home. Normally I'll get 2-3 bars in my home office but it is now none at all. Both of us are on Digi, don't really think its the telco, but it surely the update that causes this problem.

lol it was serious since normal gripping the phone can cause dropped calls and lost signals, but this is certainly worse, a phone that can't perform as a phone.

ios 5 user, try to restore ur phone to 5.01 its will solve the problem( have suscess 3 iphone adi) problem with hang, no service n cant call in....de

Trust me, the no service problem will come back anytime later.
At least not immediately after you restore.
iOS5.0.1 doesn't fix the said problem.

No luck. I could confirm that 5.0.1 not solving the no service problem. Problem recurs today!

U guys on 3g or not? For me i have no problem, and i off my 3g unless need to surf faster..

No 3G. It randomly hit phones anyway, my brother who has the 32GB iPhone 4 with Digi do not have this problem.

Nop, 3G is off.

My 3G is off, bluetooth is off, wifi is off. Tell me what can I off some more? hehe

Off the phone and exchange for a SGS2. I am only staying with the iphone now due to the apps.

I am not a big fan of Android apps.

Oic.. Luckily i dont suffer the problem both on my iphone 4 n 4s.. Both 5.0.1 n wondering what is the cause..

Highly suspect some conflict between hardware and software.

Yeah...each time need to restore waste me at least an hour

I have done fresh restore to ios 5.0.1 and will test this week to see how the signal issues. If is working fine will let u all know. Tried restore iOS5, unable to do so only can restore to 5.0.1

Ahh I was just hit by this bug 5 minutes ago =.=. Using iOS 5 with semi tethered jailbreak. Suddenly my phone was in searching searching.

Tried to respring my phone via sbsettings. Managed to get maxis line but cannot call in or out. I removed my sim card, didn't work also because it still shows I have Maxis line.

Following that I respring without a simcard, it shows no sim then I inserted my sim still showing no sim =.=.

Last I respring my phone with sim, it shows Maxis line. I turned into aeroplane mode, turn on 3g and data then magically it came alive. After it was working the phone then ran all my previous calls and misscalls. Now everything is fine gonna monitor it.

I did a fresh restore .. no restore from backup on my 3GS .. still have problem .. I believe there is a bug in ios5.0 and 5.0.1 .. bad thing, I couldn't revert back to 4.3.3 .. grrr.. getting the recovery mode loop ..

Tested the network coverage on the way home yesterday and it works fine. No service drop/signal issue.
But i realize that the problem happen when I open my foursquare app... so now I hv remove the app and phone work fine...

Don't have 4sq app on my phone still problem occurs. But i highly suspect is the activation of imessage thats doing it, since my bro, who never activates imessage doesn't have the network lost of death.

My friend and I both on iPhone 4 and upgrade iOS5 at the same time; we both have iMessage activated.
My iPhone suffered from this problem twice already (1 restore in between)
However, my friend's iPhone still working fine until today.

This problem really happens too random.
Need more observation and investigation.
Since you suspect its iMessage causing problem, have you tried turn it off and see if problem persists?