Does anyone here use an unlocked Att 4s with T-Mobile?

mclld

macrumors 68020
Original poster
Nov 6, 2012
2,206
1,201
I bought my son a used 4s and want to try T-Mobile 30/month plan for him. The coverage in town shows to be excellent and I activated the sim but the signal is bad. I realized I didnt change any APN settings and hope this might be the issue. If you have them could you please post them?
 

nivekr11

macrumors regular
Aug 1, 2010
161
17
I bought my son a used 4s and want to try T-Mobile 30/month plan for him. The coverage in town shows to be excellent and I activated the sim but the signal is bad. I realized I didnt change any APN settings and hope this might be the issue. If you have them could you please post them?
Configure the internet settings under the Cellular Data section:

APN: fast.t-mobile.com

Username: <Leave Blank>
Password: <Leave Blank>

Configure the picture message settings under the MMS section:

APN: fast.t-mobile.com
Username: <Leave Blank>
Password: <Leave Blank>
MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
MMS Proxy: <Leave Blank>
MMS Max Message Size: 1048576
 

Applejuiced

macrumors Westmere
Apr 16, 2008
40,650
6,404
At the iPhone hacks section.
Apn settings have nothing to do with signal or coverage area.
It's just for data and mms settings.
You will not be able to connect to 3G using the 4S, mostly 2G edge.
The coverage maps you saw are not for the AT&T 4S.
It's for tmobiles 3G capable devices.
Sell it and get a Tmobile iPhone.
 

JackieInCo

Suspended
Jul 18, 2013
5,178
1,584
Colorado
I used an unlocked AT&T 4S on T-Mobile for about 7 months. The data coverage was great when I was at home but when driving around town, it spent a lot of time on edge. This sounds a lot like what you are experiencing and is probably normal with that iPhone model. If you get a 5S, I bet your experience improves.

Finally in November, I got a T-Mobile 5S and now it spends almost all of it's time onLTE. Your area may be different of course.