topic Re: AT&T 3G Service on Arc S LT18a? in Other/General

AT&T 3G Service on Arc S LT18a?

Tue, 29 Nov 2011 18:01:06 GMT

Hi recently I got my Arc S and I set up the data, but I'm only getting Edge services. My LT18a model band suppose to be compatable with AT&T 3G data. Is there any special way for me to set up to avoid getting Edge? I'm in the city so I shouldn't be getting edge.

Re: AT&T 3G Service on Arc S LT18a?

uliwooly-wooly — Tue, 29 Nov 2011 18:05:08 GMT

go to

settings -> sony ericsson -> Internet settings

Re: AT&T 3G Service on Arc S LT18a?

uliwooly-wooly — Tue, 29 Nov 2011 18:09:20 GMT

and just to be sure

also try this

settings -> wireless & networks -> mobile networks -> access point names -> MENU -> add New

Name: AT&T

APN: wap.cingular

Proxy: leave blank

Port: leave blank

Username:WAP@CINGULARGPRS.COM

Password:CINGULAR1

Server: leave blank

MMSC: http://mmsc.cingular.com

MMS Proxy: wireless.cingular.com

MMS Port: 80

MCC:310

MNC:410

APN Type: leave blank

MENU -> Save

Re: AT&T 3G Service on Arc S LT18a?

Tue, 29 Nov 2011 18:17:58 GMT

I tried both suggestion and it still show E icon above..strange.

Re: AT&T 3G Service on Arc S LT18a?

uliwooly-wooly — Tue, 29 Nov 2011 18:26:54 GMT

I know some users have locks on their SIM card so when they try to save the APN well it does't save it.

once you've entered the APN manually, turn off your phone, turn it back on and go to

settings -> wireless & networks -> mobile networks -> access point names

Is the APN still there?

Re: AT&T 3G Service on Arc S LT18a?

Tue, 29 Nov 2011 18:28:58 GMT

After reboot, APN is still there.

Re: AT&T 3G Service on Arc S LT18a?

uliwooly-wooly — Tue, 29 Nov 2011 18:29:25 GMT

go to

settings -> wirless & networks -> mobile networks -> make sure "data enabled" it's selected

Re: AT&T 3G Service on Arc S LT18a?

Tue, 29 Nov 2011 18:32:41 GMT

That is also enabled. Network Mode is set to GSM only. Data roaming is OFF.

Re: AT&T 3G Service on Arc S LT18a?

uliwooly-wooly — Tue, 29 Nov 2011 18:39:48 GMT

change it to wcdma preferred/GSM

Re: AT&T 3G Service on Arc S LT18a?

Tue, 29 Nov 2011 18:45:17 GMT

No changes at all...I contacted AT&T support to get their APN info, same as you suggested above.

Re: AT&T 3G Service on Arc S LT18a?

Tue, 29 Nov 2011 19:02:40 GMT

Do you know what H means when there's data?

Re: AT&T 3G Service on Arc S LT18a?

uliwooly-wooly — Tue, 29 Nov 2011 19:03:48 GMT

there are two options either

1) the network's towers are down in that area (3G towers)

2) the SIM card it's too old or it might be acting up, contact AT&T or go to the store, they will give you a new one free

Re: AT&T 3G Service on Arc S LT18a?

uliwooly-wooly — Tue, 29 Nov 2011 19:05:28 GMT

E = 2G

3G = 3G

H = faux 4G or 3.5G

so as long as you get H your connection it's faster than 3G

Re: AT&T 3G Service on Arc S LT18a?

Tue, 29 Nov 2011 19:06:02 GMT

Sim Card came from iPhone 4. I pop it back into my iPhone and 3g is working fine.

Re: AT&T 3G Service on Arc S LT18a?

Tue, 29 Nov 2011 19:09:22 GMT

If I know that, I wouldn't mess with the setting lol..Now i need to find out how to get it back to H.

Re: AT&T 3G Service on Arc S LT18a?

Tue, 29 Nov 2011 19:14:37 GMT

Thank You for explaining the H, phone is back to H

Re: AT&T 3G Service on Arc S LT18a?

uliwooly-wooly — Tue, 29 Nov 2011 19:45:18 GMT

no problem, I'm glad I could help, thanx for marking the correct answer

Re: AT&T 3G Service on Arc S LT18a?

slimshaddy — Wed, 30 Nov 2011 08:12:28 GMT

dont know..but sometimes i get 3 and now when i checked it showed h..

but the speed was less as compaed to the e

can you tell me what speed do you get at E , H and 3g..?

Re: AT&T 3G Service on Arc S LT18a?

uliwooly-wooly — Wed, 30 Nov 2011 08:26:13 GMT

if you have the correct APN settings then there's nothing you can do, it's based on coverage area,

http://www.wireless.att.com/coverageviewer/#?type=data

Re: AT&T 3G Service on Arc S LT18a?

Wed, 30 Nov 2011 15:42:19 GMT

The speed is not much of difference from 3, when I stream pandora its the same thing..but surfing Facebook is quite fast haha