Kaiser : When 3G icon appears ATT Service is lost...

[Yarikd]

I am on the old $39.99 ATT plan the one that does not have 3G and my with an old “blue” SIM card. I have been using Sony S710a for the past two years which in fact worked fine. A week ago I have obtained ATT Tilt (HTC 8925), unlocked it so that it would read my card and started using it.
Here is the problem that I can’t solve>:confused:
Sometimes my phone loses service, completely, and I cannot reconnect to ATT Service. I have tried to find a pattern but so far I am clueless of what might be causing it.
According to my observation::confused:
1. It has been happening in certain neighborhoods.
2. When I do find service and connect to it shows E and then switches to 3G
3. When my phone starts to show 3G it loses connection.
This phenomenon happens only from time to time. Other times I have 3G icon and everythign is fine. I have tried T-mobile card in it and there is no problem. It connects to T-mobile service and has all bars. Thereafter I have put my card into an unlocked Nokia 6300 and my ATT connection works fine. The only thing I can blame is 3G. :confused:
Please if anyone knows what this, why its happening and how I can avoid this issue let me know. Thank you.

[Yarikd]

Im not sure yet, but so far I have installed an application that supposed to keep me away from [3G]. The application that I have installed is Bandswitch. So far it only shows [E] . I have to travel to those areas where I had no service to be sure that this program works. Ill keep you updated on this issue.

[pdtp]

go get a new sim card. ATT and Cingular towers were different so some older sim cards have trouble connecting to some towers. its only something like 15 bucks.

when i went to the ATT storeto get my tilt, even though i already had a 64k sim they still upgraded the sim (for free seince i was about to pay 400 bucks).

[Dave V]

The old sim cards don't have enough memory. Get a new one with the 3g logo on it. You should probably upgrade your service too. Or you'll get a big surprise when your bill comes.

[Samson711]

I have the same problem here in germany with the O2 3G Network... My phone has a GPRS Connection and when the 3G Icon appears there is a total loss of connection for like 10 seconds and its back to GPRS again... End of the story (like i assumed and wrote to O2 ;P) my SIM Card is too old, new one on the way :) Should work for you as well, like all the other posters before me claimed

Edit: Oh and it didn't cost me one buck, all inclusive service because i didn't lose or broke my SIM Card. When it is too old to be able to allow you to use your full contract properties, i guess they pretty much have to send you a new new SIM card for free. At least here it works this way

[Yarikd]

The problem is that I dont have a contract and the only way for them to upgrade my sim to 3G is when i sign up. Curently I have 1000 min, nights and weekends from 7pm, free mobile to mobile, free long distance and free incoming SMS. Its highly unlikely that any one of you would give that up and pay more money for less minutes and less services. Right? :) Thank you. at this point i think im fine with what I have got, in addition to not needing 3G at all. by the way, i think that this program Bandswitch is doing a good job keeping me of 3G. Thank you.

[NuShrike]

The problem is that I dont have a contract and the only way for them to upgrade my sim to 3G is when i sign up.I never had to 'upgrade' my sim to 3G, nor sign a new contract. I just took my old GSM SE phone in to ask about service, and they asked if I would like a sim swap to the latest.. Sure, done.

Now works fine with the Kaiser, and never did any form of 3G 'upgrade'.

[Nate731]

I never had to 'upgrade' my sim to 3G, nor sign a new contract. I just took my old GSM SE phone in to ask about service, and they asked if I would like a sim swap to the latest.. Sure, done.

Now works fine with the Kaiser, and never did any form of 3G 'upgrade'.

Were you part of the old ATT Blue network? Cingular actually started giving out 3g cards in early 2006 in my area. I got one with my 8125 where they FIRST came out. So it's possible if you've gotten a phone since then and now that your card is already 3g...

[NuShrike]

Were you part of the old ATT Blue network? Cingular actually started giving out 3g cards in early 2006 in my area. I got one with my 8125 where they FIRST came out. So it's possible if you've gotten a phone since then and now that your card is already 3g...You're right, I think it may be important to be on the 'orange network' because 3G never existed for the old at&t wireless 'blue'.

I was always part Cingular, and did go through the free-sim upgrade, but got another one when I just walked in after that.

[cheesey]

Well I'm in malaysia, Using Maxis 3G network. I also having problem same symptoms like you guys. What do i realize sometime it give my device freeze for sometime. But the freeze just like for few second. And what do i realize when 3G appear our phone signal become weak. From full bar drop to 2 or 1 bar.

Did u guys having this issue too?

My simcard is 128k if im not mistake.

[kilrah]

See this: http://forum.xda-developers.com/showthread.php?t=335074

Most likely the same problem. RMA ahead.

[Infuruno]

Try this on your phone settings (dialer --> menu --> options) on the network tab is network selection set to automatic? i was experimenting with my phone to see if i could get a better signal and set it to manual and choose my network but when im no a 3G connection its called 3G T-mobile and when not its just called T-mobile and on the manual list its just called T-Mobile so each time i got a 3G connection it would lose signal completely and start searching for i think T-mobile not 3G T-mobile the moment i set it back to Auto and soft-reset it worked fine again.

[tubaking182]

my phone did this at first, and all i had to do was get a new SIM. they didn't charge me a dime for it at the att store, but if they ask just tell them your phone won't connect and that it's a problem with your SIM

[GiODi]

I have the same problem and have a new phone on the way. I already have a 3G sim card.

When you call, they'll probably make you hard reset your phone. Just a heads up.