Database Develop

Using Diamond in the US

Hello,
I have been really interested in buying this phone for quite a while now. But with it being Triband and not supporting any 3G in the US (which I only really use for internet sharing), I am still wondering if I should spend the money and get this phone or another one. My main question is, even without 3G support, I should still be able to get Voice and EDGE coverage correct? I currently have a Cavalier (S630) which I can use for Internet Sharing only if need be. I still cant see why its not Quadband =( and oh yes, I am on AT&T.
Any help on this topic would be great. Thanks =)

Man why waste 600+ dollars for half a phone. you have waited this long just wait for the us version. Trust me. You have no idea how slow edge is. I used to live in 3G/HSPDA terriroty and now i dont. I havent used my kaiser for web surfing in a while becasue its painfully slow. Save the dough

myv6mustang said:
Man why waste 600+ dollars for half a phone. you have waited this long just wait for the us version. Trust me. You have no idea how slow edge is. I used to live in 3G/HSPDA terriroty and now i dont. I havent used my kaiser for web surfing in a while becasue its painfully slow. Save the dough
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I know how slow EDGE is, it sucks lol. The thing is I know how HTC likes to delay their phones all the time, and I really haven't seen a solid release for the US. I have seen Q2, but since they delay their phones so much you can never tell.

Edge won't work in part's of America either. The Diamond that is out currently is tri-band GSM and doesn't have the 850 mhz which is what at least part of America works on. It's possible, depending on where you live, that even the edge won't work for you.
You really need to wait for the American version to come out.
See this link for the bands.
http://www.gsmarena.com/htc_touch_diamond-2368.php

alaiwy said:
Edge won't work in part's of America either. The Diamond that is out currently is tri-band GSM and doesn't have the 850 mhz which is what at least part of America works on. It's possible, depending on where you live, that even the edge won't work for you.
You really need to wait for the American version to come out.
See this link for the bands.
http://www.gsmarena.com/htc_touch_diamond-2368.php
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The specs on this site state that is has 850mhz band which is not correct. According to the detailed specs thread on the Diamond fourm it says the phone has a GSM band 1900. I went to www.gsmworld.com to look at the network for AT&T (1900mhz band only) and it covers the major cities and surrounding areas (almost exact same coverage map as 850mhz band) unless your in the friggin mountains.

Current Diamonds May have 850band!?!?

So I'm talking to one of the prominent Cell Phone Hackers / Repair guys in the city. Apparantly, he ripped open a diamond and it had the same chipset as the 850 diamond will have in it. He is saying that a ROM Update could unlock that frequency.
I debated with him stating that the chipset may be the same but there is no 850 antenna on it. He disagrees.
Any thoughts on this?

WorldIRC said:
So I'm talking to one of the prominent Cell Phone Hackers / Repair guys in the city. Apparantly, he ripped open a diamond and it had the same chipset as the 850 diamond will have in it. He is saying that a ROM Update could unlock that frequency.
I debated with him stating that the chipset may be the same but there is no 850 antenna on it. He disagrees.
Any thoughts on this?
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i think he might be right since the preproduction had the band, though no one did ever test a preproduction to see if the band actually worked.

Pawel062 said:
i think he might be right since the preproduction had the band, though no one did ever test a preproduction to see if the band actually worked.
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Engadget tested it, it didnt work.
A 900Mhz antenna would still work on the 850 band, it just woundn't be optimal, and you would end up with lots of harmonics. SNR would be lower, and the amplifier would end up at full strength most of the time, increasing the SAR.
Because of that they remove the calibration settings of the 850 band from the radio. Even if you changed the flag to enable the band (easier) you would need to somehow recreate all the calibration data (much harder).
Calibration data is specific to each device, so a flash from the US diamond rom (when/if its available) wouldn't be enough.
Its possible you could clone the calibration data from a US version of the diamond, but by then whats the point, just get a US version instead of frying your brain

someone1234 said:
Its possible you could clone the calibration data from a US version of the diamond, but by then whats the point, just get a US version instead of frying your brain
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I guess some people just like their brain well done
Maybe it's for the situations when people try to get a device for cheap, or 2 weeks before everyone gets it, but then they realize that it won't work in their country.. as it should

Does Diamond support USA GSM bands? I think mine do.

Correct me if I am wrong but I think my Diamond (bought from Hong Kong) support USA GSM network. Please see the attached picture, it shows UMTS8500+1900 + GSM850+1900 as an option in the phone setting manual.
I made this post because I saw many people complain that the first batch of Diamond doesn't support USA GSM bands but only the Asia and Euro one.

Can u check al lines, mines is:
UMTS(900+2100)+GSM(900+1800)
UMTS(850+1900)+GSM(850+1900)
UMTS(800+2100)
UMTS(850+2100)+GSM(900+1800)
UMTS(850)+GSM(900+1800)
UMTS(1700)
Mine is working is USA!

It may support those bands but it wont actually get you 3G access in America because the non American Diamonds are missing the 3G attenna. Its not a software problem but a hardware problem.
If you want to use 3G in America then wait till the American version of the Diamond is out.

the bands being able to be selected means that the RIL (radio interface layer) CAN support those bands, that DOES NOT MEAN that your Phone Hardware can support it.

The software interface is probably not smart enough to adjust itself to match hardware.
The HK Diamond hardware spec said it is a triband GSM phone. It does not have GSM850. I'm not sure if this is just a marketing / sales spec.
Anyone tested this in the US? Or any hardware/radio engineer on this forum to validate this spec?

xwaiz said:
The software interface is probably not smart enough to adjust itself to match hardware.
The HK Diamond hardware spec said it is a triband GSM phone. It does not have GSM850. I'm not sure if this is just a marketing / sales spec.
Anyone tested this in the US? Or any hardware/radio engineer on this forum to validate this spec?
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Well the HK Diamond Spec is incorrect, it "could" be quoting the US specs but the US version isnt out for another month at least.

xwaiz said:
The software interface is probably not smart enough to adjust itself to match hardware.
The HK Diamond hardware spec said it is a triband GSM phone. It does not have GSM850. I'm not sure if this is just a marketing / sales spec.
Anyone tested this in the US? Or any hardware/radio engineer on this forum to validate this spec?
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Click to collapse
900/1800/1900, thats 3 bands = triband.
This has been discussed so many times now
I have myself written about 3 times why techincally it won't work. Search for my posts, because i really dont have the energy to type it agian!

someone1234 said:
900/1800/1900, thats 3 bands = triband.
This has been discussed so many times now
I have myself written about 3 times why techincally it won't work. Search for my posts, because i really dont have the energy to type it agian!
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hehehe...

I though this would be a good place to post this question.
I have the same bands listed as post # 2. Now my phone came out of the box like it is. No radio or rom upgrades, yet. Does that mean its Quad band unlocked already from the box? Or do I still have to load the latest radio?

Hard to say without knowing wich radio you have.

chribruu said:
Hard to say without knowing which radio you have.
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My radio is 1.00.25.03, so I would assume it's not quad band without putting one of the newer radios?

triband TD
when i got my TD, it was listed a triband. I could still use in the USA because
ATT uses 900 band also. However, their primary band is 850. THe reception with the 900 only band was spotty. I then flashed my ROM (see below) and a new radio.....05 and immediately got 4 bars where i got 1 or none. MUch improvement. However, you will NOT get 3G until you get a USA phone. It uses Edge now, (which for me is fast enough). ITs a hardware think not a ROM or radio upgrade thing to get 3G.
BTW this is my current ROM and i am very happy with my TD now. Best phone ive ever had.
Rom 1.93.456.2 WWE
Rom Date 7-10-08
Radio Version 1.00.25.05
Hard SPL 1.24
Protocol Version 52.29.25.12H

Spawn12 said:
It may support those bands but it wont actually get you 3G access in America because the non American Diamonds are missing the 3G attenna. Its not a software problem but a hardware problem.
If you want to use 3G in America then wait till the American version of the Diamond is out.
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Is there a difference between the european 3g and the american? I haven't tried my diamond in the states but I use 3g/turbo3g here in europe...

bobo_error said:
Is there a difference between the european 3g and the american? I haven't tried my diamond in the states but I use 3g/turbo3g here in europe...
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I have mine on Ebay. I have currently using in in SF with ATT 3G.

mexvato said:
I have mine on Ebay. I have currently using in in SF with ATT 3G.
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I saw your auction. Sorry, but I can't believe you're getting 3G on that phone without at least ONE bar showing in the pic!!

If the european version is missing the antenae then if he was in an area with strong enough signal wouldn't it show the 3G icon and maybe even only one bar, but that is not usable.

stpete111 said:
I saw your auction. Sorry, but I can't believe you're getting 3G on that phone without at least ONE bar showing in the pic!!
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The 3G has nothing to do with the bars.. it says 3g next to the bars if you have it.. (at the same place as the active sync icon is) I haven't seen the picture though so I'm not going to say anything..

mexvato said:
I have mine on Ebay. I have currently using in in SF with ATT 3G.
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So that makes me wonder why you haven't dumped the radio off the phone and let other people test it out. If in fact it is just a DIAM100 model with a modified radio to unlock the 850 gsm band.

bobo_error said:
The 3G has nothing to do with the bars.. it says 3g next to the bars if you have it.. (at the same place as the active sync icon is) I haven't seen the picture though so I'm not going to say anything..
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That's 100% untrue.

RavenGirl said:
So that makes me wonder why you haven't dumped the radio off the phone and let other people test it out. If in fact it is just a DIAM100 model with a modified radio to unlock the 850 gsm band.
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The hardware he has is the DIAM160, not the DIAM100.

HTC Touch Diamond US 3G - working ROM

Is there a working ROM (home brewed or otherwise) that will make the 3G in HTC Diamond work in the US with a carrier like ATT?
I would like to buy a phone and I am not sure if this is possible. I read somewhere that the FCC recently approved 3G version of the model - but would like to know for sure.
Thanks,
Karter

No, there is no ROM. The European Diamonds don't have the hardware necessary for getting anything but 900/2100mhz 3G. Try searching before you ask questions that have been answered 5 times over.

Black93300ZX said:
No, there is no ROM. The European Diamonds don't have the hardware necessary for getting anything but 900/2100mhz 3G. Try searching before you ask questions that have been answered 5 times over.
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Ok now I'm really confused ! I thought the fact (or at least I thought it was) that the "European" Diamonds were ROM upgradable to access US 3G was the whole basis for those of us that are hoping for the Touch Pro to eventually be the same way ??????????????

Black93300ZX said:
No, there is no ROM. The European Diamonds don't have the hardware necessary for getting anything but 900/2100mhz 3G. Try searching before you ask questions that have been answered 5 times over.
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Sorry hit the submit button twice

we ALL hope so, but it looks like is NOT happening!

lol this is just funny now...

frozenwaffles said:
lol this is just funny now...
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Sorry guys - I must have misunderstood some of the posts and I haven't been following the Diamond area closely enough
But I sure am glad I could provide you some entertainment ... but even more so, I sure hope that the when the dust settles the laugh will be on you ???
hopefully

yes yes the manufacturers want to give out all those free features..i forgot how the commercial world works...

Black93300ZX said:
No, there is no ROM. The European Diamonds don't have the hardware necessary for getting anything but 900/2100mhz 3G. Try searching before you ask questions that have been answered 5 times over.
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that is not entirely true. The hardware is exactly the same.

Please don't perpetuate this false rumor - DIAM 100 is not 850mz 3G capable
Based on the fact that HTC submitted a different model number than DIAM 100, the DIAM110
http://gullfoss2.fcc.gov/oetcf/eas/...mFrame=N&application_id=417017&fcc_id='NM8DM')
to the FCC, it seems pretty clear that the hardware between the European version and the US version are in fact different. In addition, no one has been ale to get 850mhz 3G working on any existing (i.e., DIAM100) phone. If you can show evidence otherwise, I'm sure people would be interested. Otherwise, I think you're spreading a false rumor created out of wishful thinking and HTC's past behavior of not enabling GPS on the Trinity.

landshark said:
Based on the fact that HTC submitted a different model number than DIAM 100, the DIAM110
http://gullfoss2.fcc.gov/oetcf/eas/...mFrame=N&application_id=417017&fcc_id='NM8DM')
to the FCC, it seems pretty clear that the hardware between the European version and the US version are in fact different. In addition, no one has been ale to get 850mhz 3G working on any existing (i.e., DIAM100) phone. If you can show evidence otherwise, I'm sure people would be interested. Otherwise, I think you're spreading a false rumor created out of wishful thinking and HTC's past behavior of not enabling GPS on the Trinity.
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Indeed there is no evidence to prove the DIAM100 can work on US 3G. But, i dont think its hardware related well i just keep my hope that something can make mine work. Dont want to sell it out!

lets speculate a little....
1) Mobile phone chipsets ARE multiband by definition. Even if it says that it is only 1900MHz, its chipset suports a range of frequencies (something like 1850 to 1990). Why? because it has to support lots of call in a single cell. The call are spread over hundreds of channels (frequencies) and across time-slots in a code division scheme.
And because it uses a code division scheme for multiple simultaneos calls, then all these frequencies are used at the same time.
So, operating frequency is programmable.
2) The Antenna has also to support multiple frequencies.
3) I think the only reason a chipset has to not support a frequency is the processor speedy. But 7201A specs says it suports 2.1GHz as well as 850GHz UMTS.
So, the reason a mobile phone has to be dual band and not quadband has to be only market related and not technical.
Is this correct?
or only bull****?
If this is correct, then Diamod Hardware HAS to be UMTS Quadband.
And, to provide HTC a commercial advantage when negotiating with carriers (that is, HTC locks european models to not work in USA --- so that, to use 3G in USA one needs to by the device from the local carrier --- this leads to better contracts with the carrier).
If Diamond hardware is quadband where is the lock?
From all the reseaches we are almost sure it is not in the main storage memory (Radio or ROM).
It can be hardware locked....then the only way to unlock will be hacking the hardware wich is not viable for almost all of us (if it is not impossible).
But (trying thinking as HTC engineers), how about lock it (outside the memory --- because users are flashing hacked Radios and ROMs) but still in a programable way? (I think like sim-lock is done this way in many devices). Because doing this way I don´t have to create diferent production pipelines and different projects.
By programmable I mean a process that is done after the phone (or the main board) is manufactured.
If all of this is true (and I think it is not ) than the question is: is this final process reversible? (like simlock)?
If yes then how?
Uau.....I am impressed on the amount of **** I can write sometimes.

HTC HD7S on T-Mobile US... EDGE only?

Why oh why!
So do AT&T run their 3G on a different frequency to T-Mobile?
Is the only physical difference between the HD7 and HD7S the display? Or are there different chips inside - ie is the Mhz restriction in hardware or can it be overridden in software?
Rocking out on EDGE really isnt much fun!

Yeah, until the merger(if it happens) T-Mobile and AT&T use different 3G radio fregencies. Sorry 'bout that.

JamesDax said:
Yeah, until the merger(if it happens) T-Mobile and AT&T use different 3G radio fregencies. Sorry 'bout that.
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Even if the merger happens, at&t has already stated that anyone with a T-Mobile phone will have to get an at&t phone eventually. They aren't gonna keep T-Mobile's network around for long.
streetster said:
Why oh why!
So do AT&T run their 3G on a different frequency to T-Mobile?
Is the only physical difference between the HD7 and HD7S the display? Or are there different chips inside - ie is the Mhz restriction in hardware or can it be overridden in software?
Rocking out on EDGE really isnt much fun!
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Pretty sure the only big difference is the screen. We haven't heard much else that is different, and there probably isn't much. Oh, the speaker grills on the top and bottom are not silver (if I recall correctly). That's about all we know.