Develop Bugs

[Q] Telstra Next G network with foreign Desire

Hi,
I have a HTC Desire that I bought in France with Orange. The phone is now unlocked and rooted, with a LeeDroid 1.8 rom.
I'm currently in Australia with a Telstra sim card and it seems I can't use the Next G. I have the HSDPA in few cities like Sydney, but everywhere else it's only Edge.
Does someone know if my phone is able to access the Next G ? And if yes, how to do it ?
Thanks a lot !
Antoine

Looks like you bought a Desire without 850MHz. Out of luck I'm afraid. The "Next G" you are seeing is 2100MHz which your phone supports but in rural areas Telstra uses 850MHz.
Sent from my HTC Desire using XDA App

Is your Desire a A8181 or a A8183? The 83 denotes Telstra NextG 850mhz support.
If you have an 81, you will get 3G signal on every carrier except Telstra. If you have the 83, you only get 3G (NextG or 3.5G) on Telstra.

Yeah I have an A8181 so it explains why it doesn't works.
Thanks for your help guys !

arrow224 said:
Is your Desire a A8181 or a A8183? The 83 denotes Telstra NextG 850mhz support.
If you have an 81, you will get 3G signal on every carrier except Telstra. If you have the 83, you only get 3G (NextG or 3.5G) on Telstra.
Click to expand...
Click to collapse
Well, same problem for me !
I have a 81 and had chosen Telstra for the nextg and the cover...
The 850mhz support is software or hardware ?
Is it possible to do something on my desire to be able to use the NextG network ?
Cheers,
Quentin

No.
Sent from my HTC Desire using XDA App

Your best bet is to use one of the other carriers in AUS such as Optus, Vodafone or 3.
The 850 Mhz radio is hardware based, and your phone has 900 Mhz radio.

3 doesn't support 900, I think Voda are deploying 850(but don't know how far their UMTS currently extends on 900) so the only long term alternative to a new handset would be Optus.

[Q] Desire HD Radio - UMTS Frequencies

My Desire HD works with UMTS frequency 850, which means I can only get GPRS, as my provider uses 2100 for UMTS.
I know there are other variants for the DHD that work with 2100.
My question: Is it possible somehow to hack the radio firmware to make the device work in a different frequency or did HTC actually bother with different radio hardware?

Is there a 850 MHz DHD out yet? The DHD normally has a 900/2100 MHz UMTS radio in it. So it should work. Do you have 3G enabled or is your phone on GSM only?
Sent from my Desire HD using XDA App

The radio frequencies are "hard coded" into the cpu chipset, they cannot be changed. full stop. sorry

HTC DesireHD radio questions

Hello,
I currently use a HTC Desire HD handset, so far everything has been awesome.. One problem is that the network provider I am using (Vodafone Australia) is pretty much hopeless. The alternative is to go with Telstra, however they use different HSPA frequencies to those that my handset supports.
Vodafone Australi - 900/2100
Telstra Next-G - 850
I have a few questions which I've been unable to categorically answer from other posts.
1) is it possible to flash alternative firmware for the radio?
2) is there firmware which supports Quad Band HSPA for HTC handsets?
3) What is the actual radio chipset used in the Desire and Desire HD?
I travel a fair bit around the world, the normal Australian vodafone frequencies work well in the EU and many parts of Asia, however If I do go with a Telstra frequency then I loose the roaming, hence the question about Quad Band HSPA/UMTS.
Regards,
Jimmy.

tha'ts a really good question, i want to know about that too.. and btw, who uses 850mhz frequency? wtf... =oP

Radio frequencies are hard coded into the cpu chipset, and thus cannot be changed by flashing a new radio
Sent from my Desire HD using Tapatalk

[Q] Changing GSM Band Lock

Hi Guys,
Well, this is my first time posting here, so hello to you all!
Anyway, down to my problem. I have a Desire Z A7272 running on the Australian Telstra network. I just bought a new sim card today that is Next G activated.
I have a few problems which I am hoping to solve by asking you experts First of all note that the Telstra Next G network runs on the 850mHz bandwidth, which I believe my phone does not support. Seeming as I live in regional Australia, this is undesiarable because although 21000mHz is supported and available, Telstra only runs it in the metro area, where it doesn't reach me.
I was searching the net for a couple of days until I found a forum where it explained how to lock the GSM bands. I can't link it as I have lost the page. What I did was dial *#*#4643#*#* and change the network lock to "United States". This was because in the US they don't have the 900mHz band they use the 850mHz band and I was hoping to get my phone to use the 850mHz band.
Now to my 2 problems.
1. When I locked the phone to the 850mHz band, it seems that I can't access *#*#4643#*#* anymore. I type the number in, and nothing opens. I was wondering how to fix this so I could set it up to "Automatic" again.
2. I was wondering if there is anyway hardware or software wise to be able to access and use the 850mHz network. If you could link or quote some reliable/trusted sources that would be excellent. I will take unknown sources but will do with caution, I don't want to break my 2 week old phone.
Thanks guys, sorry for the essay.
Haash.
EDIT: Please note that my phone is running Android 2.3.3 with HTC Sense 2.1.

Your phone is only capable of accessing whatever bands your hardware is designed to. I don't know the specs for your Desire Z, but if the bands you want are not listed in the hardware specs, you will NEVER get them. You would need to investigate whether there is a desire z model built to run on the gsm spectrum you need.
For example, here in the US, Tmobile and AT&T phones can be unlocked to use on each other's EDGE network. But no magic code can ever give them the hardware needed to run each other's 3G network.
Sent from my T-mobile G2 using Tapatalk

Nospin said:
Your phone is only capable of accessing whatever bands your hardware is designed to. I don't know the specs for your Desire Z, but if the bands you want are not listed in the hardware specs, you will NEVER get them. You would need to investigate whether there is a desire z model built to run on the gsm spectrum you need.
For example, here in the US, Tmobile and AT&T phones can be unlocked to use on each other's EDGE network. But no magic code can ever give them the hardware needed to run each other's 3G network.
Sent from my T-mobile G2 using Tapatalk
Click to expand...
Click to collapse
Thanks, now all I need to do is get my *#*#4643#*#* working again so I can change it back to the 21000mHz network that I can use.

For anyone wondering:
Europe:
HSPA/WCDMA: 900/2100 MHz
GSM: 850/900/1800/1900 MHz
Asia Pacific:
HSPA/WCDMA: 900/2100 MHz
GSM: 850/900/1800/1900 MHz
BUT, for the Tmobile G2 (American version)
GSM:
850, 900, 1800, 1900
UMTS:
1700/2100, 2100

Thanks, does anyone know how to unlock *#*#4643#*#*?
Sent from my HTC Desire Z

It could possibly be that the code you're using isn't correct. I believe it is *#*#4636#*#*
Sent from my HTC Vision using XDA App

hellorufino said:
It could possibly be that the code you're using isn't correct. I believe it is *#*#4636#*#*
Sent from my HTC Vision using XDA App
Click to expand...
Click to collapse
Oh wow thank you so much. I feel like a complete idiot now. Thanks a ton.
Sent from my HTC Desire Z

i wish the new roms can make this possible, i want to force 3g sometimes..

[Q] Ace or Inspire?

Hi my plushies
Anyways. I just got a Desire HD! YAY ME!
Being a Desire owner for 2 years and seeing a lot of great development on the HD, i'd give it a go. So far seems good, though i like the AMOLED a bit more imo
So my first boot after getting it from retailer, it boots with T-Mobile logo. That means its from USA right? Is my phone then an Inspire or a Ace? Afaik, the Inspire is the american version?
The weird part is, i got the T-Mobile one because the other one (a danish one WWE), was send for repair and i recieved this instead.
Will this affect anything? And how the *** do i figure out of its an Inspire or Ace?!
**Btw, i did do my search first lol
**Is it on the bootloader? I saw an "Ace" in there, but wasn't sure if everyone DHD had that name
*2. edit* Lol apparently i've used the wrong terms. So, Desire HD or Inspire (Apparently their all Ace (As in vendor Ace, like the Desire -> Vendor Bravo))

Inspire is the 4g version DHD was not.
also check the "full" spec list at the bottom of this page
http://www.differencebetween.com/difference-between-htc-inspire-4g-and-vs-htc-desire-hd/

I've got a german t-mobile branded phone so i'd never be sure where it's from
but yes: DHD is the HSPA version, Inspire 4G is the 4G version (LTE? HSPA+? no clue)

My phone is an American inspire that i bought unlocked online... its actually an ATT phone and not tmobile. If your phone is a Tmobile then its def not american but probably from some other countey instead. Another way to find out is by seeing if you get access to 3g in yoir country. Because att uses frequencies that are different from most other countries around the world, the american Inspire doesnt get access to 3g data in most countries. Apart from that its practicaly the same phone hope this helpzs
Sent from my Desire HD using XDA App

There are basically 3 versions of the Desire HD.
First is the European/Asian version. It is model A9191 and has high speed data bands of 900/2100. It can be branded or non branded but they are all the same physically. If it says T-mobile on it then it is a European version branded to T-mobile.
2nd is the Telus Desire HD from Canada. It is model A9192 and has high speed data bands of 850/1900. It has no logo denoting it as a branded phone. It also has a second mic by the camera flash used for noise reduction.
3rd is the Inspire 4G from ATT in the USA. It is also model A9192. Physically it is exactly like the Telus Desire HD except it has ATT branding logos on the phone.
All 3 phones are HSPDA compatible. All 3 have the same size memory. All three have the same LCD. In terms of getting at least 3G, if you live in Europe you want the A9191. The A9192 is mainly for North America/parts of South America and can be used in parts of Australia on the Telstra network.

Hi I currently have a A9191 running CM7.2.
When I purchased this phone (in Australia) I was originally on the Vodafone network & I'm now on Telstra NextG (850) - but for high speed data it can only get the "3" network = 2100.
I wanted to know if it is possible to load on the A9192 baseband to "activate" / change to the high speed data bands of 850/1900? Or if there is any other mod to do this?
Or is the physical hardware of the A9191 only capable of the high speed data bands of 900/2100?
Any help or advise would be much appreciated

David_PDA2K said:
Hi I currently have a A9191 running CM7.2.
When I purchased this phone (in Australia) I was originally on the Vodafone network & I'm now on Telstra NextG (850) - but for high speed data it can only get the "3" network = 2100.
I wanted to know if it is possible to load on the A9192 baseband to "activate" / change to the high speed data bands of 850/1900? Or if there is any other mod to do this?
Or is the physical hardware of the A9191 only capable of the high speed data bands of 900/2100?
Any help or advise would be much appreciated
Click to expand...
Click to collapse
I don't know the specs for the dhd, but it is a hardware issue.
Here you go:
http://forum.xda-developers.com/showthread.php?p=27844700
Sent from a dream.

Thanks Teichopsia,
Looking at this thread, it looks like he was trying to get 4G (inspire4G) out of a 3G device, which I'd say is even harder than just switching bands.
But it doesn't mention anything about the A9192 vs A9291.
Even Qualcomm's site doesn't list a A9192.
I agree it does look like a potentially hardware thing though - i.e. potentially different radio hardware / antenna / firmware... but I don't specifically see this detailed anywhere. Looking to see something that says it is different physical hardware.
The theory I'd like to validate - both Desire HDs use the same MSM8255 chipset, & perhaps you can make a A9191 to a A9292 with flashing the right firmware.
Going to reply to the thread you sent to see if they had any further luck.
Kind Regards,
David.