Hacked T-Mobile carrier update brings HD Voice to the iPhone 4S

By , Jun 12, 2013

tmobile hack

Folks with an iPhone on T-Mobile might be interested to hear that there’s a new hacked carrier update available that promises a number of enhancements. It was created by the same folks who brought you hacks for Sprint, Verizon and AT&T.

This time around, the developers say that the modded update is good for more than just speed improvements. For iPhone 5 users, it adds a 4G toggle so you can switch it off to conserve battery life. And for 4S users, it adds HD Voice support…

HD Voice (or Wideband audio) is a technology that extends the frequency range of traveling sound, essentially making your phone calls sound clearer. T-Mobile added support for this in a previous carrier update, but it was only for the iPhone 5.

But with this new hacked carrier bundle, 4S users can supposedly get in on the HD fun, and iPhone 5 users can enjoy faster data and other improvements. The hack behaves differently for every model, so you’ll want to read up before trying it.

Joe from iTweakiOS breaks it down:

iPhone 5: This hack enables Release 9 DC-HSPA+ on the iPhone 5 as well as IPv6 capabilities. Though T-Mobile has not yet upgraded their network to support these speeds, the device itself becomes more open to an increased amount of bandwidth thus allowing for better throughput of data and data connection. This hack also includes a fix to any and all iPhone 5 users who have experienced degraded/weakened signal over the past couple of months on the PCS and/or AWS bands, though a lot of this could be due to the eminent release of LTE in many upcoming markets as this is normal. The issue was due in part to the carrier update. It set the band preference for HSPA+, even if your iPhone 5 doesn’t support it, to AWS 1700MHz which can cause conflictions and problems for those devices that don’t support that band. The setting has been set back to the default “auto” setting and should help the 4G signal perform a bit better, whether your iPhone 5 is PCS only or dual PCS/AWS. For those with an iPhone 5 that supports AWS, this hack will also help you as well as it will connect to the strongest tower (PCS and AWS) rather than the preferred type of tower.

iPhone 5 (A1429): This hack does the same as mentioned above, but since you guys are left out of the LTE loop, we figured we would give you guys some functionality back. Rather than having the LTE Toggle, you guys now have the 4G Toggle to switch between EDGE and HSPA+ for stronger signal when HSPA+ is not available and to conserve battery, especially if you are on iOS 7 and experiencing any battery draining issues.

iPhone 4/4S: This hack enables HD Voice like what the iPhone 5 users have and gives 4S users a slight speed boost for HSPA+. It also gives some network optimiation settings that may benefit you as well. This also includes IPv6 capabilities as well.”

As usual, the modded update comes with a huge asterisk. There’s no guarantees that it will work for everyone. Your success with it will depend on a number of factors, including your location, population density, and your nearby cell towers.

Those wanting to try out the hack can find step-by-step directions by clicking here. The tutorial covers 4 iPhone models: the 4, 4S and two versions of the 5. And for what it’s worth, Joe says it’s also compatible with the newly released iOS 7 beta.

We haven’t tried the hack out ourselves yet, but readers have seen a lot of success with similar hacks for Verizon and Sprint. Plus, Joe himself has posted before and after photos (shown above) as evidence that the mod works as advertised.

Have you tried it yet? Let us know how it goes in the comments below!

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  • cmmb

    杀花

  • William Melendez

    Joined the party late but I just tried this hack for At&t and it worked flawless for me ! Lol, was barely was getting 12 Mbps now I’m getting 39 Mbps ! Running iOS 7 beta too !

    • Drew

      Your using the t-mobile carrier hack wih att?

      • William Melendez

        No I used the att hack

      • Drew

        Do you have an iPhone 4S or 5?

      • William Melendez

        iPhone 5

  • Philip

    i wonder if they could release tutorials on how to mod, so not only US carriers would benefit

  • zac bishop

    Verizon?

    • Joe

      Soon enough. Be patient :)

  • Drew

    Will there be a. AT&T 4s hack?

  • Adrian12369

    Is anyone going to try this on an iPhone 4s? I’m very curious and am probably going to do it.

    • Jacob S

      I have tried this on iPhone 5 and as soon as you change the apn from fast.t-mobile to epc.tmobile, the speed goes down by half!!!! iPhone 5 users should stay out of this and for that reason I have not tried this on iPhone 4S.

      • Joe

        So you had a problem with the APN? Well, then why not use the fast.t-mobile.com apn rather than placing the blame on me for APN performance difference? I can’t control how the APNs operate. And no, I can’t part the Red Sea either, in case you were wondering. The APN settings are only a suggestion. Not a requirement. Also, quit discouraging others from trying it out just because you didn’t get the exact results you wanted. Did you read the disclaimer? Obviously not.

      • Jacob S

        Wow, why you are so upset because I expressed my opinion??? APN settings may be a “suggestion”; however fast.t-mobile does not work your current hack, it only works with epc.tomobile. When used with fast.t-mobile says “not connected to internet”.

        Re disclaimer: I have no contest on that, rather I was trying warn others to save some time by not doing any hassle with the hack installation and of course reading your “disclaimer”, now chill down bud, peace!

        Update: After replying you I went to your site again to see the “guide” and “disclaimer”. I could not find it any “suggestion” to change APN, but I found it is is part of the “guide” at #6.

  • Jim Hart

    I’m running Straight Talk. Is there a hacked firmware for it?

    • Joe

      Which towers do you run on? AT&T, Verizon, T-Mobile?

  • Mobile Etats Unis

    i Phone 6

  • Drew

    Joe is there a att iPhone 4S carrier update available? Thx

  • Drew

    Joe, which article is it? Because the att one doesn’t seem to support the iPhone 4S. Are you able to send the link over please. Thanks

  • zeusmp5

    ugh this doesnt work with sprint iphone(on tmobile) using gpp sim -_-

    • Raymond Glover

      I’m glad you said that because I have a sprint 4s gpp ultra s to tmobile on 5.1.1I been trying to get this to work on. Problem is I was getting 6.0 on speed test before the hack now I get 0.4. I tried the instructAirbound Trampoline Parkions to put the original file back but still stuck. I need some help

  • Hec H

    I have a Sprint iphone 4s 6.1.3 with GPP chip on T-mobile network in the USA. The T-mobile carrier update (14.2) does not automatically download to GPP iphones. Anyone try manually installing the T-mobile carrier update hack from itweakios(dot)com to the iphone 4s? Does it work? Did it fix the visual voicemail, hotspot, HD audio, improve data speeds? Anyone up for the challenge?

    • David

      I’d like to know this as well!
      I’m in the same situation. Only difference is im using falwok and not the gpp. I have full 3g data and great speeds. And i’m jailbroken on 5.0.1R1 on my 4s.

      Someone please be brave and let us know!