Hd2 on at&t

[nymikey]

I have a hd2 tmobile usa version, i need a At&t friendly Nand rom. Whats the best rom out there for At&t????

Sent from my Desire HD using XDA App

 

[T-Macgnolia]

as far as I know any NAND Android ROM should work on AT&T as it is not the ROM that controls this but a combination of you sim card, APN settings, and you having your HD2 sim unlocked. Wait for more replies though as I do not use AT&T and it might actually be a ROM out there that has certain things adjusted for AT&T, but what that might be I do not know.

 

[TKETZ196]

This is true, the ROM does not control the radio. There are methods of flashing the radio to a different version, one that may work for the AT&T 3G bands. I am looking them up, but that is how you would flash the device to change the radio.

Hardware wise, the GSM module does support all world wide bands but what makes then different from one HD2 from one carrier ot another is the firmware version that is used in the phones that make them work on the network's bands. Correct me if i am wrong though.

 

[T-Macgnolia]

This is true, the ROM does not control the radio. There are methods of flashing the radio to a different version, one that may work for the AT&T 3G bands. I am looking them up, but that is how you would flash the device to change the radio.

Hardware wise, the GSM module does support all world wide bands but what makes then different from one HD2 from one carrier ot another is the firmware version that is used in the phones that make them work on the network's bands. Correct me if i am wrong though.

Untrue my friend, the T-Mobile HD2 only supports the bands used by T-Mobile for 3G. If you sim unlock the T-Mobile HD2 you can use the device with other carriers but you will only get Edge for a data signal as the hardware only supports the T-Mobile 3G bands. There is a model of the HD2 that supports a different 3G band the same ones AT&T uses in the US, it is the Australian model that Telstra a Australian cell carrier released as they use the same bands as AT&T. go to "Official HD2 T9193 (Telstra 850Mhz) Discussion Thread" and you can learn more about it. I also saw your other post in another thread about trying to help your friend out getting 3G on his HD2 using AT&T. Unless he is willing to buy a Telstra HTC HD2 T9193 or have his T-Mobile HTC HD2 T8585 worked on to switch out the hardware for the hardware in the T9193 then he will never getb 3G with AT&T.

 

[lude219]

Just to answer your question, every rom is an AT&T friendly ROM, meaning, they'll allow you to talk, text and surf the internet.

What you DONT have is AT&T 3G on your tmous HD2. You'll be stuck with EDGE speed.

 

[nymikey]

Thank you all 4 your help,greatly apreciated!! I'm in puerto rico where tmobile is still on Edge. But for some reason tmobile is still alot faster when it comes to receiving & sending MMS than At&t on this phone. Currently using Coredroid 1.5

Sent from my Desire HD using XDA App

 

[TKETZ196]

its interesting they would use different hardware GSM modules for the slightly different models. I would think the radio firmware version woudl take care of that. Thanks for clarification. I assumed that all GSM modules would be built the same way.

 

[T-Macgnolia]

Sadly they are not, this in my opinion is just cellular carriers trying to keep you locked to their networks cause the know most people don"t want to have to buy another device when changing carriers if they already have a good device. So they make it were branded devices can only utilize high speed data with it's intended carriers network. I think this is unfair to consumers, but again just my opinion.

 

[stevedebi]

Sadly they are not, this in my opinion is just cellular carriers trying to keep you locked to their networks cause the know most people don"t want to have to buy another device when changing carriers if they already have a good device. So they make it were branded devices can only utilize high speed data with it's intended carriers network. I think this is unfair to consumers, but again just my opinion.

I think there is technical reason. The various carriers have very different technologies. Even AT&T uses a different 3G network than T-Mobile, despite the fact that both are GSM. Sprint and Verizon use non GSM technologies that are even more different. When a device manufacturer makes a certain model, there is only so much room inside, and unless one wants a really thick and heavy device, a choice has to be made as to which hardware goes into the phone.

I'm not saying that they don't want you to stay on their network - they do, which is why they have those 2 year contracts in exchange for buying a discounted phone. But I don't think that is why the hardware is different.

 

[T-Macgnolia]

I think there is technical reason. The various carriers have very different technologies. Even AT&T uses a different 3G network than T-Mobile, despite the fact that both are GSM. Sprint and Verizon use non GSM technologies that are even more different. When a device manufacturer makes a certain model, there is only so much room inside, and unless one wants a really thick and heavy device, a choice has to be made as to which hardware goes into the phone.

I'm not saying that they don't want you to stay on their network - they do, which is why they have those 2 year contracts in exchange for buying a discounted phone. But I don't think that is why the hardware is different.

Point taken

I would go further with the discussion but I do not want to hijack this thread.