SO, its ur sim problem lah... go exchange another lah...

I had finally found the solution to Celcom 3G problem on iPhone 5.
The problem is actually the Celcom nano SIM.

I had ever inserted Celcom nano SIM into my iPhone 4S, then my iPhone 4S turned into difficult to switch to 3G.

To end all these problem, just get your nano SIM replaced with either mini SIM or Micro SIM from Celcom. Then trim the replacement SIM into nano SIM size. Insert it into you iPhone 5. Restart your iPhone 5. Here's all the 3G signal problem gone.

Proven on my iPhone 5 with Celcom 3G.

is this method working.. if it does.. im goin to do the same as well...

by the way,, me still same.. stuck at Edge as well..

Good to know there's a solution to it. No wonder i didnt encounter this as i cut my celcom micro sim & use maxis set ip5

probably network issue, apply the same to my umobile 3g

its an issue.. since the release of iOS 6.1..

Yes, don't think it is a SIM issue as mine was working prior to upgrading to 6.1
Check out the apple discussion forum, it's a firmware issue.

https://discussions.apple.com/thread/475740...art=75&tstart=0

I realize it takes a longer time to switch from EGDE to 3G in iOS6.1.

I am a Maxis user @ 6.1 @ iPhone 5. I'm having same annoying issue. Tried swapping nano sim as suggested by @MaxisListens, but issue remains.

So far, best possible solution is to Reset Network settings. I was so pissed that i was contemplating to port to Celcom. But after seeing this thread, i'm having doubts. Sigh..

Am a maxis prepaid user . Iphone 5 maxis set on 6.1os . The covarage is very bad . Soon planing to change to digi .

At the apple forummer ,some of them already being suggested by thier telco provider not to upgrade to 6.1 first.. There is a bug in 6.1 which affect the connection of 3G.. They already highlight this to Apple.. Lets see what Apple goin to do about it..

Guys, having same problem here. Sibeh dulan. My nano sim card is cut from Micro-sim (iPhone 4/4S). Usually on my old iPhone 4, i on the 3G, immediately effective, the 3G icon will appear immediately.

Now on this iPhone 5, I cut from micro-sim, detect 3G damn slow. i dont know whether its the phone or not. ugh. its always GPRS !

Is it cz of the sim ? I'm on Maxis.

Using iOS 6.1 ? If so, blame the latest firmware. I'm using CELCOM Postpaid plan and I'm experiencing sudden loss of 3G signal while on my Bold (Celcom) , it's getting full 3G speed.
Sigh

Finally, they heard us!.. The 3G connectivity bug is there.. Check this out!!.. It already reached the hands of Apple Team..

http://www.redmondpie.com/european-carrier...not-to-upgrade/

This post has been edited by hovercraft97: Feb 11 2013, 11:11 PM

Sure it is the firmware or not? I getting more and more annoyed everyday la really. Even sent a respond to apple on this issue. cam tak layan je. babi sial la.

From that article, it is mentioned that the 3G bug is affecting the 4S.
"European Carriers Warn iPhone 4S Users Against iOS 6.1, Requests Not To Upgrade"

Ironically, it is not the 4S which is the main concern here but rather the IP5. My wife's 4S is working fine since the day I got it upgraded to 6.1
The 3G signal couldn't be more stronger.
On the other hand, The 3G on my IP5 keeps playing peekaboo with me since I upgrade it to 6.1

Apple needs to address this bug for the Iphone 5 asap. Period.

Guys,

If your 4S is bugging you, update to 6.1.1 now.

iPhone 5 will have to wait.

Sad that Apple only addressed the 3G issue on 4S and nothing for 5 yet.. How often does Apple release software updates for a specific iPhone model? Usually they encompass the whole family of iPhones.

The issue also exists on 5, so I'm surprised Apple only released this for the 4S.



This post has been edited by netbeans: Feb 12 2013, 05:32 AM

Apple is Rushing to Release iOS 6.1.1 After Carriers Report 3G Performance Bug
http://iClarified.com/27374

Lets see.. However an update is a must.. Really annoying...!!.. Damn.. They only update for the 4s..


This post has been edited by hovercraft97: Feb 12 2013, 07:34 AM