Develop Bugs

Desire Frequency in use?

Apologies if this is a stupid question;
Can I find out what frequency the Desire is using at any time? ie which 850/900/2100 band?
Just replaced an 850/2100 Desire with a UK-originated 900/2100 and the speedtest results have almost doubled.
Just want to see if it is still using the 2100mhz network or somehow it's using a 900mhz band with better results
Sidenote: in Australia we have 850mhz desires

Does anybody have any solution on finding out which frequency the Desire is using at a given time?
Thank you

ix9 said:
Apologies if this is a stupid question;
Can I find out what frequency the Desire is using at any time? ie which 850/900/2100 band?
Just replaced an 850/2100 Desire with a UK-originated 900/2100 and the speedtest results have almost doubled.
Just want to see if it is still using the 2100mhz network or somehow it's using a 900mhz band with better results
Sidenote: in Australia we have 850mhz desires
Click to expand...
Click to collapse
The 850Mhz is only for Telstra. If you with any other provider (3, Vodafone, Optus) you should get the EU version! If you use telstra one with let say 3 card in it, you will only get 3G when you have access to 2100Mhz network.
My Desire is telstra one and im with telstra, speed test results are better comparing to HTC Hero on 3. Im getting around 500-1000kbps better results.
Only problem is that Melbourne server is gone from speedtest.net, and now we testing connection to Canbera and Adelaide so results will be diffrent.

ix9 said:
Apologies if this is a stupid question;
Can I find out what frequency the Desire is using at any time? ie which 850/900/2100 band?
Just replaced an 850/2100 Desire with a UK-originated 900/2100 and the speedtest results have almost doubled.
Just want to see if it is still using the 2100mhz network or somehow it's using a 900mhz band with better results
Sidenote: in Australia we have 850mhz desires
Click to expand...
Click to collapse
I live in Mexico and have a European Desire and want to change to 850 since Telcel (cel provider) is what uses.
Any help on how I can achieve this?

wrong problem explained
What I meant was for the 3G 850 band

You have to buy a new phone! The A8181 Desire does not support that frequency - you need an A8183 Desire.
Regards,
Dave

foxmeister said:
You have to buy a new phone! The A8181 Desire does not support that frequency - you need an A8183 Desire.
Regards,
Dave
Click to expand...
Click to collapse
Thanks for the answer dave, I was hoping there were some software tweaks.
Regards

I know I'm dredging up an old thread, but I searched and have not found a way to display which of the 3G frequency bands is being used at any given moment by my Desire. Does anyone know of an app that does this? I would be surprised if there is not an android app that does this, since it seems there are such apps for other platforms.

[Q] International Desire, American 3g?

I'm moving to the U.S. (california if that matters) in a couple of weeks and it's time for me to buy a desire. Being from Sweden I'm used to having great 3g service and use it well. What happens if i buy the phone here (not a U.S. specific model) and bring it overseas? Will 3g work? If so, can I choose from any carrier?

Woppe said:
I'm moving to the U.S. (california if that matters) in a couple of weeks and it's time for me to buy a desire. Being from Sweden I'm used to having great 3g service and use it well. What happens if i buy the phone here (not a U.S. specific model) and bring it overseas? Will 3g work? If so, can I choose from any carrier?
Click to expand...
Click to collapse
No it won't - a European Desire won't give you 3G on any US Network.
Regards,
Dave

Woppe said:
I'm moving to the U.S. (california if that matters) in a couple of weeks and it's time for me to buy a desire. Being from Sweden I'm used to having great 3g service and use it well. What happens if i buy the phone here (not a U.S. specific model) and bring it overseas? Will 3g work? If so, can I choose from any carrier?
Click to expand...
Click to collapse
it all depends on which carrier you use. I have ATT and I bought my Telstra (made for AUZ) that uses the same band for 3g as ATT does and I get great 3g in SO CAL.
if you buy one in Sweden it will not work on 3g here. You can buy one from US Cellular and it will work here but they don't have that great of coverage. You can buy a EVO from Sprint, but you won't have a sim card.
If you buy a Telstra for the US it will work in Sweden (not sure about 3g) but you will have 3g in US on ATT when you get here. I bought my from here

Thank you, that was helpful information!
Is a Desire using the 850MHz band what I need?

Woppe said:
Thank you, that was helpful information!
Is a Desire using the 850MHz band what I need?
Click to expand...
Click to collapse
yes, the 850 will work on ATT 3g

I'm going to Florida on holiday next year. I intended on buying a prepaid sim for my Desire (from Orange, debranded and unlocked). I did intend using 3G if it were available but after reading some of these posts I'm now unsure this will work.
Much appreciated if anyone could give me any advice.
Many thanks.

or8it said:
I'm going to Florida on holiday next year. I intended on buying a prepaid sim for my Desire (from Orange, debranded and unlocked). I did intend using 3G if it were available but after reading some of these posts I'm now unsure this will work.
Much appreciated if anyone could give me any advice.
Many thanks.
Click to expand...
Click to collapse
if you have an EUR desire it will not work on 3g in the US, it has different bands. it will work for Edge. If the phone's bandwidth (networks) don't match the carrier's it does not matter what sim card you have. Most EUR world phone's will work in US but just not on 3g, it must be same bandwidth.
if you must have 3g for your hoilday then you are better buying a prepaid phone, but that won't be a Desire

Thanks for explanation, very helpful.

Hi!
Type *#*#4636#*#* in dial pad, you will get to a screen where some information and hidden settings placed in; then tap on the first item which is "telephone information", and there press "menu" button, here in the android menu the first item is "select radio-band"! when you choose this menu option you will see a list of GSM/UMTS radio-band alternatives; Automatic, EURO, USA, JAPAN, AUS, AUS2 bands"
Well I'm not expert on this particular issue, just wondering what these radio-band options are for(?) Maybe you can change your Desire's radio band to USA band and try if it works in the USA (appreciate if you supply feedback whether or not it really works)
Sent from my HTC Desire using XDA App

You can't change bands that's hardware related, its cheaper to buy a TELUS desire, it has 850, 1900 bands
Sent from my HTC Desire using XDA App

htc fan89 said:
You can't change bands that's hardware related, its cheaper to buy a TELUS desire, it has 850, 1900 bands
Sent from my HTC Desire using XDA App
Click to expand...
Click to collapse
Unfortunately when the Telus Desire goes back to Sweden, it won't have 3G.
The US Cellular Desire won't work in Sweden at all since there's no CDMA carrier.
If it weren't so hard now to get a Nexus One I'd suggest that to you. Both version support Euro 3G and you'd use it on AT&T or T-Mobile in the US depending on which version you acquire.
The problem is, as far as I know, there are no tri-band 3G HTC Desires. There is 850/1900 (Telus), 850/2100 (Telstra) and 900/2100 (Euro). So Telstra is the only one that gives you some compromise of 3G on both continents.
On the other hand I'm pretty sure all the GSM North American Samsung Galaxy S phones (Bell Vibrant, AT&T Captivate, T-Mobile Vibrant) support the Euro 2100 band.

[Q] Is it possible to Flash G2's 3G Radio, an set it to work on 900/2100 mhz??

Well, it's just as the title of this thread says... I have a Tmobile's G2 (A.K.A. HTC Vision), which its 3g default bands are under 1700 / 2100. Here on my country, all the providers have their 3g services on 900 / 2100.... soo... Is it possible to Flash T-mobile G2's Radio, an set it to work on 3g 900/2100 mhz, so I can use the phone on 3G, instead of that annoying and extremely slow EDGE??
Or, is there a Custom ROM that has these settings on it? (I mean, a rom that automatically turns the 3g band to 900 instead of 1700)
Thanx.

No you can't, the radio bands are set in hardware (e.g. the physical antennae in the phone), not just in the radio software.

Why would you need to, the phone would use the 2100 band for it's 3G in your country? I took mine to Russia and it worked fine.

I don't think it's that simple. I only get edge on my T-mobile G2 using the Rogers network.
Sent from my HTC Vision using XDA app.

Rogers doesnt use 1700 or 2100 so that is to be expected. The original posters country has a 2100 3G, I would suspect he just isn't in a coverage area.

Circledog said:
Why would you need to, the phone would use the 2100 band for it's 3G in your country? I took mine to Russia and it worked fine.
Click to expand...
Click to collapse
I don't think it works like that, I think it needs both bands to work. If it was that simple then surely they wouldn't bother making different phones for different markets (e.g. T-Mobile US vs Europe/Asia)

That may be...I'm only speaking of my experience in Russia, they have 2100 only 3G and mine worked without the second band.

Just to add, T-Mobile US use the 1700 MHz band for the uplink, and 2100 MHz for the downlink. So presumably the phones (i.e. G2, as opposed to the Desire Z) are physically setup like that too.

Oh I thought Rogers uses 2100. Either way, no worky.... sad.
Sent from my HTC Vision using XDA app.

Ah, I think I'm following you, because Russia exclusively uses 2100 for up and down my phone worked, but since his county has a seperate uplink and a downlink band it won't?

Circledog said:
Ah, I think I'm following you, because Russia exclusively uses 2100 for up and down my phone worked, but since his county has a seperate uplink and a downlink band it won't?
Click to expand...
Click to collapse
Yeah I think that's it. I don't know *that* much about this myself, just picked up on a few discussions about the G2/DZ on here over time.
Have a look at this - http://en.wikipedia.org/wiki/UMTS_frequency_bands
I think the "problem" is that the G2 uses exclusively "Band IV" for 3G (i.e. 1700/2100 split), but somewhere like the OP's Dominican Republic uses Band VIII (900).
What the OP needs is a Desire Z, which operates on Band I (2100) and Band VIII (900).
Russia appears to use Band I (2100) as well. Maybe a G2 can partially work there then ?
Rogers uses something else, Band II (1900) and Band V (850).
As I say, I'm don't know that much about this myself, so if anyone else can help clarify/confirm/deny, then that'd be great.

Much appreciated.
Sent from my HTC Vision using XDA app.

Via Google, I dug up another interesting piece of info.
Although it's not on HTC's official spec list on their site, on T-Mobile's support pages it says that the G2 does Band I as well. Which would explain how it would have worked in Russia. That's not going to help the OP's problem though.
http://support.t-mobile.com/doc/tm24233.xml?&A2L.SERVICE=FeatureSummary

Wow mega confusing, but you helped clear it up, thanks!!
Mine worked very well in Moscow, I was pleasantly suprised, it was kind of a bonus to be able to get on the web, I wasn't expecting much.

I don't understand why the manufactures don't provide phones with penta-band 3G support like the Nokia N8. Maximize profit when producing 2-3 same phones with different frequencies maybe? I mean quad-band GSM has been supported for pretty much all of the current phones, why not 3G bands as well?

Has anyone tried this option?
bring up the dial pad and dial
*#*#info#*#* (aka *#*#4636#*#*)
press "Phone Info"
you'll get the screen with the imei, phone no, network and a button that says "Run Ping Test" at the top
press your "menu" button
when the menu pops up, it'll have 6 options, select radio band, view sim address book, view fixed dialling numbers, view service dialling numbers, get PDP list, and More.
Choose the first one "Select Radio Band" then select the appropriate band.
Not sure if it helps in this situation, but I found it in a thread about gaining 3G in Europe on the N1

hey bro.. I read from one topic in TMo's official G2 forum that the G2 will work on a country with only a UMTS band of 2100 both for up and down (the answer is from TMo employee, an engineer)... hope you'll be enlightened. I bought an unlocked G2 and I researched extensively before purchase. Im from the Philippines which only supports the 2100 band for 3G. I Know and Im 100% positive that the phone will support the 3G band here in my country. cant wait for my G2 (arriving tomorrow)
btw... coverage is vital. if the 3G signal is weak or non-existent in your area, you'll be switched to edge for data on your phone (naturally).. good luck
sorry.. cant post the link. would've loved to have posted it.

juanito05 said:
hey bro.. I read from one topic in TMo's official G2 forum that the G2 will work on a country with only a UMTS band of 2100 both for up and down (the answer is from TMo employee, an engineer)... hope you'll be enlightened. I bought an unlocked G2 and I researched extensively before purchase. Im from the Philippines which only supports the 2100 band for 3G. I Know and Im 100% positive that the phone will support the 3G band here in my country. cant wait for my G2 (arriving tomorrow)
Click to expand...
Click to collapse
That's the Band I thing that I was talking about, that T-Mo shows on their spec sheets (but HTC doesn't seem to list, for some reason).

I think the G2 will do 3G if any one of the two bands are supported by the country. Correct me if Im wrong

juanito05 said:
hey bro.. I read from one topic in TMo's official G2 forum that the G2 will work on a country with only a UMTS band of 2100 both for up and down (the answer is from TMo employee, an engineer)... hope you'll be enlightened. I bought an unlocked G2 and I researched extensively before purchase. Im from the Philippines which only supports the 2100 band for 3G. I Know and Im 100% positive that the phone will support the 3G band here in my country. cant wait for my G2 (arriving tomorrow)
btw... coverage is vital. if the 3G signal is weak or non-existent in your area, you'll be switched to edge for data on your phone (naturally).. good luck
sorry.. cant post the link. would've loved to have posted it.
Click to expand...
Click to collapse
There is nowhere in the world that uses 2100 in both directions. Band 1 is 1900 UP, 2100 DOWN.
In all cases, your phone must be able to upload on the frequencies that the towers listen on, and download on the frequencies that the towers transmit on.
I.e., north america vision transmits on 1700 or 1900, receives on 2100.

[Q] 3G not working on AT&T US on DHD bought in Singapore

Hello Guys,
I am new to this forum and need some help with my DHD which I bought in Singapore.
I am using it in US with AT&T and unfortunately I am not getting 3G eventhough i have 3G service. I am getting EDGE after setting up the APN. Please let me know if there is a way to get this phone working on 3G. I have already called HTC and AT&T and they mentioned that there might be difference in the frequencies.
Thanks

DHD UMTS (3g) is 900/2100 MHz, check what your carrier provides.
My particular carrier in Thailand, TRUE, only broadcasts 850 UMTS, others here use 900/1900/2100.
Sent from my Desire HD using XDA App

3G on Straight Talk

I have CM7 loaded, but doesn't really matter what rom I load, I can't seem to get 3G data speeds. I am getting internet, so that tells me the APN is setup correctly, just not 3G. Any thoughts?
Jason

probably need to look into a different radio

Any ideas? I tried 3 different ones!
Sent from my HTC Vision using XDA

The model I have is A7272 and I have an AT&T sim. Do you think the sim tells the phone what band to use for 3G? They have the option of a T-mobile sim, does anyone think that will work?

look up the A7272 on gsm arena to see what 3G band it supports and cross reference it with ATT's 3G band
Sent from my Desire Z via XDA App

I think it was because I had an ATT sim. I got a T-mobile sim and now I'm getting "H" everywhere. Still doesn't seem as fast as Verizon's 3G, but for $45/month I can't beat it. So the A7272 supports HSDPA 900 / 2100, is that why with the T-Mobile sim I can get H, because they have a 2100 HSDPA Frequency?

AT&T uses the 850/1900 spectrum for 3g and the 700mhz spectrum for 4g.
Since your phone supports none of those, that's why.
T-Mobile uses 1700/2100 (requiring both) or 1900 for 3g/4g. now, you only have half of the 2 spectrum requirement so you probably only have "half" 3g. Tmobile uses one spectrum for upload and one for download. I don't know which one is which, but if you only have one, that means you'll only get 3g/4g speed on either uploads or downloads, but not both.

I guess I fell into this trap as well... I bought a desire z thinking I could use 3g on it with my ATT/Straight talk sim. After unlocking and re-roming, I now see the same issue, stuck on Egde, and really slow edge at that.
jch2os, did you see a difference in your service area/call quality switching to the tmobile sim? I've been really happy using an Inspire on Straight talk with ATT's network, do you feel the tmobile service is a downgrade from what you previously had with ATT/Straight talk?
Thanks for the info!

After some research via eBay and Amazon, it turns out that there is two versions of the Desire Z. There is the A7272 which supports the WCDMA 900/2100 MHz bands and the A7275 which supports the 3G 850/1900 MHz bands.
idenlover, if your device is getting EDGE on the Straight Talk sim that runs on AT&T's bands, your device is the A7272 and you should get the T-Mobile Straight Talk sim. I myself am a G2 user on T-Mobile and I can say service and calling is pretty much crystal clear except in school, where there are numerous concrete buildings. Then again, I'm based in Miami, FL so I wouldn't know how service would be on your end. I hope this helps!

if you want AT&T you need the A7275 from bell canada.

Hi all! Look like i have the same problem. I have Desire Z from Russia - with russian symbols in a hard-keyboard. And in FIDO network i have only EGDE signal - never 3G. My question: what a part of phone i need change? Antenna? GSM-module? or something other? Please don't advice me change the phone - i need this keyboard, with russian symbols!!! )
P.S. If anybody know solution this problem in software (any radio, ROM, or etc.) - please, answer me too. I don't want a lot open the phone and change any parts, only if this really needed. )
P.P.S. If it important - my h-boot is 0.84.2000.

Thread moved to Q & A section.

Create a separate thread so more people can help
Sent from my HTC Vision using xda app-developers app
---------- Post added at 04:17 AM ---------- Previous post was at 04:14 AM ----------
From what I get from your problem is that your phone doesnt support the FIDO network 3g bands. I think that is hardware locked. Hopefully somebody can chime in
Sent from my HTC Vision using xda app-developers app

help! straight talk edge BS!
idenlover said:
I guess I fell into this trap as well... I bought a desire z thinking I could use 3g on it with my ATT/Straight talk sim. After unlocking and re-roming, I now see the same issue, stuck on Egde, and really slow edge at that.
jch2os, did you see a difference in your service area/call quality switching to the tmobile sim? I've been really happy using an Inspire on Straight talk with ATT's network, do you feel the tmobile service is a downgrade from what you previously had with ATT/Straight talk?
Thanks for the info!
Click to expand...
Click to collapse
add another one to the list. how did you fix your problem, if at all? this stupid edge crap is garbage.