No Straight Talk 3G data? Works on my E71...

[fredmc2020]

Hi All,

I have my unlocked SGS4G with a Straight Talk SIM inserted. I can make calls and send/receive texts, but I can't seem to connect to 3G data. By default, the SIM seems to have wap.cingular as the APN. This gives me no data at all. When I switch the APN to att.mvno I can get edge, but no 3G.

There are 2 kickers to this:

1. When I lived in TX I tried the same thing with someone else's straighttalk SIM and I got 3G no problem using the att.mvno APN.

2. When I have the ST SIM in my nokia E71 (also ST) I get fast 3G internet. (But when I pop it in the SGS4G the MAX I can get is edge).

Does anyone have an idea of how I can get the 3G working? I have tried using a few different APN settings with no luck, but at this point I will try just about anything you throw my way!

 

[camalus]

http://simplemobile.webs.com/index/Android Configuration/Android Configuration.html

Those should do it for you.

Sent from my SGH-T959V using XDA App

 

[fredmc2020]

http://simplemobile.webs.com/index/Android Configuration/Android Configuration.html

Those should do it for you.

Sent from my SGH-T959V using XDA App

Thanks for the tip, but those APN settings result in no internet at all. I do have an active T-mobile account to use the SGS4G on currently, but it roams on ATT in my area. So I'm thinking that simple mobile isn't supported here.

Does anyone know the exact APN settings from a current Nokia e71 for straight talk? When I try to access them, the software tells me I don't have permission to view it.

 

[fredmc2020]

Solved (I Think)

I think I have found why this won't work in my area, but PLEASE correct me if I am wrong!

It looks as if the SGS4G does not support 3G on 850 MHz while the nokia E71 does.

Apparently where I was living in TX, ATT was transmitting 3G over 1900 MHz which I could pick up, but now in NM ATT uses only 850 MHz 3G so I am SOL.

Now I'm assuming that this incompatibility is strictly a hardware issue, hence flashing new modem FWs will not work. Is this right?

 

[mikeflash]

Right. This phone doesn't support 3g over 850mz, only 1700/2100 and 1900. Only 2g at 850.

This is a hardware limitation so no ROM can change it.

Sent from my SGH-T959V using XDA App