I am having the exact same problem! I have called Celcom countless times to ascertain the issue but so far no resolution yet. Sometimes when I drive, I get 3G, but I do not use the phone when I drive . I never had this problem with Celcom when using my previous iPhone 4.

Does anyone have an update on this issue? Is it the phone? The line? Nobody in Celcom seems to have an answer.

@tinkerbel: Appreciate the answer. That would be one way to look at it. However, this issue afflicts so many Celcom iPhone 5 users (based on the complaints on this thread). Could it be that all Celcom iPhone 5s have problems?

@fumakiller: Do you have this problem in just one place? Or also many places?

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Added on December 18, 2012, 4:44 pm@leechers: Wow I didn't know that. My google search only resulted in Celcom complaints haha. There are a handful of DiGi complaints here but no Maxis also innit?

@tinkerbel: Let's hope, because my iPhone 5 has been changed before. The backside metal surface had obvious scratches. Otherwise, the phone works perfect.

This post has been edited by jason_mufc: Dec 18 2012, 04:44 PM

@tinkerbel: Nope, EDGE all the way. Exactly like how Fumakila describes it. When in areas like my house in Sg Buloh, I used to get 3 to 4 bars of 3G. Now only EDGE. When I go to Damansara Jaya yesterday, full 3G. Even can turn off & on.

@fumakila: Does it mean update software? No need to swap phones right?

@leechers: Haha I called 3 or 4 times man. They said they will monitor. Up till now my place still no 3G. When I go out it's ok the 3G quite strong. I even called and asked the guy who sold me the phone. HIs answer was NANO sim is quite unstable at this stage. Try and use a few days and see if it improves. If not come in for SIM swap. If still not fixed, then phone swap. But my hunch is that this is a network + software issue. I think fumakila's explanation might be it. The software now searches for the strongest signal and in my area, that is EDGE, but at my friend's place in DJ, it was 3G. Well, hope it gets resolved soon.

@leechers: Exactly! At first I was a bit worried cos no 3G at all. Then when you move to city areas like Damansara and Bandar Utama, the bloody thing picks up 3G, so yes it an capture 3G signal. Previously I used Samsung GS3 and I get H+ all the time so yes I agree IP5's signal capturing not as strong. For our sake I hope an update will resolve this.

This is just a wifi fix. Maybe 6.1 will be more extensive. Either ways, fingers are crossed.

No sir, am with Celcom. From past experience Celcom has been quite good with my iPhone 4. This is the first time I am experiencing Network issues with them. Got sick of Maxis' way of overcharging and billing practices.

@sogoatticus: In PJ I get instant 3G haha. No need to reset anything. 3G just appears. What makes me is my own area only EDGE. Lucky at home got Unifi.

@tinkerbel: Yes in the past week I have only been getting EDGE but on Celcom. Tried Speet Testing the connection, definitely EDGE speeds. BUT since yesterday midnight I have been getting proper 3G. I think Celcom fixed it. Up till this morning I have 3G connection. Speed Tested it about 2-3MBps lar. Quite decent. My issue is considered solved haha.

PS. U live in Sg. Buloh? Which part? I'm in Rahman Putra