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.

Changing the frequency of the HTC Desire?

Is it possibe to change the frequency that the Desire uses?
I just got an HTC Desire but it apparently doesn't use the same frequency as my other phone did so I'm stuck on insanely slow EDGE.
I know this request may sound a little odd but I'm desperate to change it.
At the moment the frequency is: HSDPA 900 / 2100
And I need to get to: 850 / 2100
I saw that you can apperently flash "Radios", is this what is needed? What exactly would flashing a Radio do?
If anyone could help me here it would be GREATLY appreciated, I mean what's a smartphone without 3G internet?
Edit: I just realized that both Rogers and the HTC Desire share the 2100 frequency, is there any way I could enable the 3G on that frequency?

I'm not 100% certain, but I believe the frequencies are a hardware problem - otherwise you would probably see a lot more mods to enable every frequency possible
If rogers is using that 2100 frequency, your phone should be searching for 3g on that frequency, but there might not be 2100 support in your area, as they use 2 different frequencies to make it cheaper to roll out (so in a different area, phones could access the 850 but not the 2100)
Updating your radio might help a bit:
Radios can make your signal a bit stronger, depending on which one you use (the best radio varies per situation/person) So it could let your phone get a higher speed on your EDGE, or maybe find a nearby 2100 signal

Yes, flashing to a different radio version and its associated RIL (if available) can help to improve issues with things like battery life, Wi-Fi performance, and 3G/HSDPA speeds. Some radio versions may work better than others for you as they are region dependant. Give a few a try and observe how good/bad they each perform.
Sent from my HTC Desire using XDA App

Hypercore said:
Is it possibe to change the frequency that the Desire uses?
Click to expand...
Click to collapse
No. It's not possible.
Sent from my HTC Desire using XDA App

I've got a 850/2100 HTC Desire. While the 850 doesn't affect me, I'd have preferred if I had the 900/2100 HTC Desire.
BTW, just to re-affirm, frequency the device operates on is hardware-based and cannot be manipulated with software/firmwares.

sungeigedong said:
I've got a 850/2100 HTC Desire. While the 850 doesn't affect me, I'd have preferred if I had the 900/2100 HTC Desire.
BTW, just to re-affirm, frequency the device operates on is hardware-based and cannot be manipulated with software/firmwares.
Click to expand...
Click to collapse
The radio frequencies are handled by the cpu and cannot be changed
Sent from my HTC Desire using Tapatalk

AndroHero said:
The radio frequencies are handled by the cpu and cannot be changed
Sent from my HTC Desire using Tapatalk
Click to expand...
Click to collapse
how can i find the frequency info on my phone?Where in settings can i retrieve this information?Thanks

[Q] Can Not get my Desire HD to connect to 3G

Hi. I recently got a Desire HD. I am in Caracas, connected to Movistar-Venezuela and can not obtain a 3G connection.
I had an HTC Fuze/Touch Pro before, with the same SIM card and had no problem connecting to 3G, and if I put the SIM card back in the Touch Pro it connects with no problem.
I have:
Android 2.2
Baseband version
12.28b.60.140eU_26.03.02.26_M
Kernel
2.6.32.21-g66cfb7a
Build
1.32.707.5
I have tried everything in the standard Settings. Am I missing something?
... sorry if this problem has been posted and resolved before, but I am having trouble searching for "3G" as it seems to be too short for a search term.

Correct me if I'm wrong
Correct me if I'm wrong anyone, but the Desire HD doesn't support all 3G bands, only a few. So that may be why you are experiencing the problem.

kamranh3 said:
Correct me if I'm wrong anyone, but the Desire HD doesn't support all 3G bands, only a few. So that may be why you are experiencing the problem.
Click to expand...
Click to collapse
That's correct most DHD models support 3G only 900 / 2100 MHz bands, unless stated otherwise in which case it'd be on the 850 / 1900 MHz range.
Chech with your telco as to which band their 3G runs on.
Sent from my Desire HD using XDA App

sengork said:
That's correct most DHD models support 3G only 900 / 2100 MHz bands, unless stated otherwise in which case it'd be on the 850 / 1900 MHz range.
Chech with your telco as to which band their 3G runs on.
Sent from my Desire HD using XDA App
Click to expand...
Click to collapse
"unless stated otherwise" would mean that the option for the 850 / 1900 MHz exists?
Is it a radio issue? If that were the case, where could I download that radio? or would somebody know if HTC was planning to release one for all bands?

cjserrab said:
"unless stated otherwise" would mean that the option for the 850 / 1900 MHz exists?
Is it a radio issue? If that were the case, where could I download that radio? or would somebody know if HTC was planning to release one for all bands?
Click to expand...
Click to collapse
DHD's can only do one of the pairs and it's a hardware thing, don't think radio can switch between them. It's something to look out for when purchasing a new handset.
Not sure why HTC decided to go with this method, given that iPhones (and other phones) are quadband.
Sent from my Desire HD using XDA App

Just factory reset your phone. I've had this problem once and nothign worked until I did a reset of the phone.

Same problem here. You may need a different flavour of the phone.

Thanks everybody for your help.
You have been all very helpful.
Though I have to admit I am a little sad. DHD with no 3G connectivity is like a Ferrari on a dirt road...

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..