Help Using a Bring Your Own AT&T HTC Inspire with Straight Talk Wireless

A reader, Denise, writes…

Same old story, different day!! I have an HTC Inspire, which is Android 2.3.3 It’s an AT&T phone but was never activated to any service prior to me and is ‘unlocked’. I have a Straight Talk SIM card that is T-Mobile compatible (that’s what they told me to buy). Well, I can’t get mobile network or send/receive MMS. I have tried a million APN settings. Could the fact that I have an AT&T phone with T=Mobile SIM have something to do with that? I can make calls and regular text, no problem. I bought the SIM sometime around Feb this year.
Please help”

Hi Denise

I am going to assume this is the phone you are using

If you are able to make and receive phone calls using the Straight Talk T-Mobile SIM, then your phone is definitely unlocked. I looked at the specs for the phone and I am not sure that your phone will be compatible with data using Straight Talk’s T-Mobile network.

Forget about MMS for a moment and focus on data. Straight Talk uses three APNs: tfdata, wap.tracfone, and att.mvno. If you are using Straight Talk’s T-Mobile SIM your APN is wap.tracfone. Go the the Straight Talk website and look up your APN settings. Use Android 4.0 & 4.1 as your phone type.

On your phone, go the the APN settings, and add your APN. Just the APN don’t worry about the MMS values. Save the APN and restart your phone. Test your data connection. Check your status bar, look for a 3G or E indicator, if you don’t see one, you probably aren’t getting a data connection.

You could also try the Straight Talk app from the Play Store and see if it works.

You may want to consider transferring your service to the Straight Talk ATT SIM.  You’ll need an new Straight Talk ATT SIM, you can transfer your current service from the old SIM to the new SIM from the Straight Talk website.  If you bought the Straight Talk BYOP Activation Kit at Walmart, the package that came with 4 SIMs and a $45 service pin, then you already have the SIM you need.

This is assuming that you know that the ATT network works well where you plan to use your phone.

Let me know how it goes.




  1. Mary Bracken-Davis | | Reply

    I am on Straight Talk and have done everything that is said to be required to make my Windows Blu Smartphone compatible with it. I have been able to get on the internet and Fb etc and send texts but have never been able to download media in a text message. Straight Talk kept sending me links to download on my phone last week but I could not make them understand that I could not any longer get on the Internet on my phone. I finally downloaded one on my computer and it fixed the problem for about 2 days. Now nothing I try is working to restore the internet to my phone and to download Media content. Can you please help? I am totally frustrated.

  2. serena | | Reply

    OK so I have att sim card and art HTC inspire android 2.3.5 and my data doesn’t work.

  3. Denise | | Reply

    Good morning,
    Thanks for replying so quickly. Nothing has worked. I tried Tweaker and all available ST apps, as well as their suggested APN settings. So I guess I’ll try a new AT&T SIM card. But I wanted to ask you, if I install a new SIM and that doesn’t work (get me DATA and MMS capabilities)or for some reason wont allow call-text ect.., do I also have to have a new T-Mobile SIM, or can I just put the old one back in?
    Thank you in advance

    • Bob Thompson | | Reply

      Hi Denise,
      I am not sure. If I understand correctly, you are asking if you can transfer your service back to the old tmobile SIM from the new att SIM if you find out that doesn’t solve the problem. I’ve never tried that. The old SIM is still listed account after you transfer to the new one, so it might. Assume you’ll need a new one. I doubt your phone will be worse with the ATT sim. If it doesn’t fix the problem, I would not be in a hurry to go back to the TMobile network.

      LEt me know how it goes.

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