Database Develop

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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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...
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.

Quad Band - WCDMA ...

i heard that HTC Diamond has quad bands 850,900,1900,2100 (can choose in setting) the American and other version it all made up
am I right

no to the best of my knowledge you are wrong
the hardware require filters for each frequency this
would mean a much more expensive device to produce
only to remove some later would be insane

Rudegar said:
no to the best of my knowledge you are wrong
the hardware require filters for each frequency this
would mean a much more expensive device to produce
only to remove some later would be insane
Click to expand...
Click to collapse
I believe he is talking about this:
http://www.youtube.com/watch?v=nG57kdsSeZc

Differance in models

Im noticing in peooles signatures that they are posting from different models.does that effect much? Is there a model comparison chart somewhere?
Sent from my SCH-I800 using XDA App

we got ,
GSM
CDMA
Sprint
Verizon
so all are different in specific ways ..

You forgot Wifi only Kosh...

Well I meant more in terms like I have a i800 when I went to the store they were selling a 1010 model I think it was. What r the differances in those? From what I can tell its just regions
Sent from my SCH-I800 using XDA App

Radio frequencies, touch screen, digital tv, fm radio, open gl, wifi only, memory size, just to name a few differences.

No, the 1010 model is a WIFI only version. It has different hardware from the gsm and cdma tabs. There hasn't been much developement in that regard. The cdma tab also seems to be available only in America... Again theres not much developement so far. The gsm versions are worldwide and have the most developement as they are the type most people have...
CDMA - no sim card and locked to telco
Wifi only - self explanatory
GSM - uses sim cards....
Other than that it seems to be variants, though there is a difference between the gpt1000l/n tabs and the majority of others too...

900mhz -> 850mhz modem physical swap,

So, I happen to have two galaxy S phones, one with a smashed screen, the other intact. One can do 850mhz and not 900, the other 900mhz and not 850mhz. I was wondering as to the physical locaiton of the radios in the phone. Opening them up I can see quite a few chips appear to be attached with flex cables and was wondering if radios/modems are interchangeable. Anyone given it a go?
I also have a 900mhz Nexus S I'd love to run 850...
So, any ideas?

I suspect it might be easier to swap the screens than the radios, but I'm no expert.

It certainly would be, just interested for interests sake really. And of course if its the same as the one in the nexus s then I'm very interested if its on a flex that can be changed.

mackaxx said:
It certainly would be, just interested for interests sake really. And of course if its the same as the one in the nexus s then I'm very interested if its on a flex that can be changed.
Click to expand...
Click to collapse
use a technician manual to dismantle and for parts location http://forum.xda-developers.com/showthread.php?t=1709378

Flash JVU/JW1 Modem
Go to dialer
Type :*#2263#
Select combi bands
Menu key -> Key input
Enter Value 8
Here you go, WCDMA/UTMS 850,900,1900,2100 enabled

I've tried flashing a few modems and enabling the frequency in the combi band bit but have had not success. Its an australian i9000 and apparently they are somewhat crippled.

So it looks like its one of 3 chips, one for each frequency. Its soldered into a board which you certainly can remove and switch though, which means it might be worth finding a smashed in dead 850mhz phone or vice versa if you want to change your phone to the other frequency.
Nexus S internals were totally different so no real chance of anything working there.

mackaxx said:
So it looks like its one of 3 chips, one for each frequency. Its soldered into a board which you certainly can remove and switch though, which means it might be worth finding a smashed in dead 850mhz phone or vice versa if you want to change your phone to the other frequency.
Nexus S internals were totally different so no real chance of anything working there.
Click to expand...
Click to collapse
But there is Quadband 2G.....

MrAndroid12 said:
But there is Quadband 2G.....
Click to expand...
Click to collapse
Um, quadband 2g? Telstras 'edge' network? Seems a bit slow?

[DEBUNKED] Hidden LTE Radio Capabilities?

EDIT: While the baseband may support LTE, an additional RF chip is required. Sorry
As some of you may know, I have been trying to details the hardware inside the Nexus 4, and I may have made and incorrect assumption based on the fact we were told it doesn't support LTE. I believe the Nexus 4 may have and LTE capable basband chip.
The Nexus 4 uses a snapdragon S4 PRO APQ8064. This SOC doesn't have a baseband chip at all, you have to add a separate chip.
It is unknown what baseband chip is in the Nexus 4, but we can narrow it down. As can be seen on the android central home page very very clearly, the baseband version is as follows:
M9615a-CEFWMAZM-2.01700.27
The first part of that caught my eye. M9615a. For 10 points, anyone know what baseband chip is in the Optimus G? MDM9615
M9615a... MDM9615... See where I am going with this here? Seems a little coincidental. Might be nothing but I thought I would throw it out there.
If Google is getting LG to use the same parts in the Nexus 4, then it seems to me that the Nexus 4 does support LTE (although NOT CDMA, so still no Verizon or Sprint).

l0st.prophet said:
As some of you may know, I have been trying to details the hardware inside the Nexus 4, and I may have made and incorrect assumption based on the fact we were told it doesn't support LTE. I believe the Nexus 4 may have and LTE capable basband chip.
The Nexus 4 uses a snapdragon S4 PRO APQ8064. This SOC doesn't have a baseband chip at all, you have to add a separate chip.
It is unknown what baseband chip is in the Nexus 4, but we can narrow it down. As can be seen on the android central home page very very clearly, the baseband version is as follows:
M9615a-CEFWMAZM-2.01700.27
The first part of that caught my eye. M9615a. For 10 points, anyone know what baseband chip is in the Optimus G? MDM9615
M9615a... MDM9615... See where I am going with this here? Seems a little coincidental. Might be nothing but I thought I would throw it out there.
If Google is getting LG to use the same parts in the Nexus 4, then it seems to me that the Nexus 4 does support LTE (although NOT CDMA, so still no Verizon or Sprint).
Click to expand...
Click to collapse
It may have the onboard chip, but doesn't it need a separate (a specific type of) antenna for LTE?

Wouldn't they have to test the chip's functionality at the FCC which would alert the tech writers who watch that stuff?
Those documents can be found here. You might be able to make heads or tails of any of it (I can't)

The reality is that LTE chips are significantly expensive to add to a smartphone, like in the $200 range. Part of The reason this phone can be offered for so low off contact is because it is HSPA only. I am also quite confident that they have to dissociate all of the radios inside the phone.
sent from SGS3 via tapatalk

evodon84 said:
The reality is that LTE chips are significantly expensive to add to a smartphone, like in the $200 range. Part of The reason this phone can be offered for so low off contact is because it is HSPA only. I am also quite confident that they have to dissociate all of the radios inside the phone.
sent from SGS3 via tapatalk
Click to expand...
Click to collapse
Is that expense attributed to the hardware? Seems a bit high to me, I would guess it is some sort of licensing fee to use that spectrum. if thats the case having it technically not supporting it would negate the fees while still possibly having the necessary radio for it. Completely speculating though.

Hi
I expect all the gobi modem range are software compatible and the base band shown is just the software identifier.
Regards
Phil

evodon84 said:
The reality is that LTE chips are significantly expensive to add to a smartphone, like in the $200 range. Part of The reason this phone can be offered for so low off contact is because it is HSPA only. I am also quite confident that they have to dissociate all of the radios inside the phone.
sent from SGS3 via tapatalk
Click to expand...
Click to collapse
Are you saying $200 just for LTE? Umm no. Research firms suspect it added $10 to the cost of the qualcomm chip for the iphone.

The baseband chip might support LTE (most likely it does), but the phone is probably missing the required amplifiers (LNA and PA) and filters to make it work in the LTE bands.

nm3th said:
The baseband chip might support LTE (most likely it does), but the phone is probably missing the required amplifiers (LNA and PA) and filters to make it work in the LTE bands.
Click to expand...
Click to collapse
That sounds much more likely the case. I will say that if it's possible I guarantee the amazing development community on here will have it functioning very soon after they get hands on it!

Having read some more, the iPhone 5 uses the same chip, but has an additional chip paired with it. I couldn't find out if it was to do with the CDMA models though.

nm3th said:
The baseband chip might support LTE (most likely it does), but the phone is probably missing the required amplifiers (LNA and PA) and filters to make it work in the LTE bands.
Click to expand...
Click to collapse
Also I would guess that qualcomm has locked out the functionality even if it is the same silicon. Common practice in the industry when you are selling a lower-end variant at a lower price. That could what the 'a' added onto the part number is for.

The second chip is the Qualcomm RTR8600 multi-band/mode RF transceiver for LTE bands, and s also found in the GSIII.
Sorry guys, my bad