Since T-Mobile’s announcement the other day that it’s finally bringing the iPhone on board, we’ve learned a bit about just how this hardware will work. While it’s largely the GSM iPhone 5 already available on AT&T, the phone’s radio compatibility is being tweaked to function not only on T-Mobile LTE, but also on its 3G bands. From what we heard, phones with these capabilities will only be available as newly-purchased T-Mobile models, and existing AT&T-compatible GSM models can’t be software upgraded to perform the same. Well, it turns out that’s not entirely true, as word of a jailbreak hack has emerged that offers at least some degree of high-speed T-Mobile access.
Bad first news: this is just for T-Mobile LTE. As far as we know, there’s still no way to get your iPhone 5 operating on 1700MHz HSPA+ without buying a new phone.
That said, if you’ve got a jailbroken GSM iPhone 5 – either an AT&T model that you’ve had the carrier unlock, or one bought unlocked from the get-go, you can enable LTE support for T-Mobile. At the moment, that’s of limited use, seeing as T-Mobile LTE is only live in a handful of markets, but coverage is only going to get better.
If you’re feeling brave and live in a market where T-Mobile LTE is now available, we’d love to hear about your experiences with this hack in the comments.