Database Develop

Diamond & ATT

I couldn't help myself. This phone seems perfect so i ordered a diamond that will arrive tommorow. Now my question is if anyone thinks the bands for US are present and need to be unlocked or if this will end up on ebay . Thanks!

There's several topics about it there.
You won't get any 3G in the US with it, and you'll only be able to use the 1900 band for voice/GPRS/EDGE.

Actually you are incorrect. 1900 Mhz is supported w/3G w/AT&T in certain areas. Unfortunately my Diamond is not even getting an EDGE connection. From what I am hearing the Diamond is only supporting 2100Mhz frequency w/3G according to HTC. Which to me makes no sense.. I am blogging my experience with it as it is the first production unit in the USA.

You just said i was incorrect and correct in the same paragraph lol
This is where all the confusion starts.. For GSM/GPRS/EDGE it does 900/1800/1900 MHz - only 1900 would work in the US. For UMTS (3G) it only does 900/2100 - neither of these frequencies are used in the US.
The protocols and modulation used are completly different for GSM/GPRS/EDGE vs UMTS. The dispersal of uplink and downlink frequencies is completly different. Just because it can do 1900 for GSM doesnt mean it should do 1900 UMTS.
mobilitytoday said:
Actually you are incorrect. 1900 Mhz is supported w/3G w/AT&T in certain areas. Unfortunately my Diamond is not even getting an EDGE connection. From what I am hearing the Diamond is only supporting 2100Mhz frequency w/3G according to HTC. Which to me makes no sense.. I am blogging my experience with it as it is the first production unit in the USA.
Click to expand...
Click to collapse

So why wouldnt I get Edge? I have had triband phones before i.e HTC 8525 that worked ?

mobilitytoday said:
So why wouldnt I get Edge? I have had triband phones before i.e HTC 8525 that worked ?
Click to expand...
Click to collapse
You should get edge. Edge is an extention of GPRS but requires a different BTS (radio tower) setup. Its possible you don't have a strong enough signal, but it sounds like your confident you should have edge in that area.
The only thing i can suggest it to try in a different area - like the centre of town. Also, confirm your APN is setup corectly, the [G] may just be telling you GPRS is available, but not that you can attach.

I know with my elfin it takes a little stronger signal to initiate the Edge icon the first time (ie. after a hard reset). I can't get an edge signal inside my office but once I walk outside for a minute or two, bam I have it. Then when I go inside I still have it.

mobilitytoday said:
Actually you are incorrect. 1900 Mhz is supported w/3G w/AT&T in certain areas. Unfortunately my Diamond is not even getting an EDGE connection. From what I am hearing the Diamond is only supporting 2100Mhz frequency w/3G according to HTC. Which to me makes no sense.. I am blogging my experience with it as it is the first production unit in the USA.
Click to expand...
Click to collapse
Diamond had UMTS(2100)+GSM(900+1800),UMTS(850+1900)+GSM(850+1900),UMTS(800+2100),UMTS(850+2100)+GSM(900+1800),UMTS(850)+GSM(900+1800) and UMTS(1700) depend what rom you had in your Diamond and where you bought your Diamond , At&T should be show 3G in US and T-mobile used 3G (1700 Mhz) in New York area

The platform in the phone can support all those bands, so you might be able to see them (like in the test rom) but the antennas are not there. So you won't actually be able to pick up a signal.
mwang said:
Diamond had UMTS(2100)+GSM(900+1800),UMTS(850+1900)+GSM(850+1900),UMTS(800+2100),UMTS(850+2100)+GSM(900+1800),UMTS(850)+GSM(900+1800) and UMTS(1700) depend what rom you had in your Diamond and where you bought your Diamond , At&T should be show 3G in US and T-mobile used 3G (1700 Mhz) in New York area
Click to expand...
Click to collapse

I guess all of us US early adopters must hope the hardware is there and can be enabled with a future flash.

T-mobile in the US uses 1900mhz for GSM/Edge and only has 3g in NYC, so I'm figuring that it's a cool stop-gap device until something is available for T-mobile 3G.

so anyone have the rom that had thoose bands....

confused
so im a little confused.... If I buy a diamond on ebay, it wont work in the US? or 3g just wont work? does the diamond accept a sim card?

On AT&T it will give you only GPRS! On Tmobile (NEW) it shows EDGE!! I dont understand this at all!

Praygo said:
so im a little confused.... If I buy a diamond on ebay, it wont work in the US? or 3g just wont work? does the diamond accept a sim card?
Click to expand...
Click to collapse
Voice and EDGE will work just fine as long as you are in a major area that uses 1900 band. You might have weak or no signal when you are in smaller rural areas since those usually extend into the 850 band.
You will not be able to use 3G since the Diamond only supports 900/2100, neither of which are used by AT&T

It looks like if you have ATT you are hosed for both voice and data, as most of ATT voice and data (Edge) is 850mhz. Most if not all of T-mobile voice-data-Edge is 1900mhz so you will have at least Edge. If you're looking for 3g data you're SOL until the US version of the diamond is released.

this fn blows htc has really screwed us here in usa...i was willing to spend 800 for this device and htc doesnt even see this? by the time it comes out here in quadband ...the x1 will be out and not mention the 3g iphone...oh well

martyotaku said:
this fn blows htc has really screwed us here in usa...i was willing to spend 800 for this device and htc doesnt even see this? by the time it comes out here in quadband ...the x1 will be out and not mention the 3g iphone...oh well
Click to expand...
Click to collapse
We will get the diamond, have to wait for the US version that does the different bands.... wich leads me to my next question. What carrier do you think will get the diamond??? AT&T seems to get all the cool stuff.

martyotaku said:
this fn blows htc has really screwed us here in usa...i was willing to spend 800 for this device and htc doesnt even see this? by the time it comes out here in quadband ...the x1 will be out and not mention the 3g iphone...oh well
Click to expand...
Click to collapse
I don't think HTC cares about America too much any more because it's iPhone territory. As they haven't used their own branding until recently, I think HTC are looking to gain market control and loyalty, and that's easiest where the iPhone hasn't been a huge success.
Praygo said:
We will get the diamond, have to wait for the US version that does the different bands.... wich leads me to my next question. What carrier do you think will get the diamond??? AT&T seems to get all the cool stuff.
Click to expand...
Click to collapse
Again, HTC seem to like doing exactly what Apple are not doing, so they may go for multiple carriers. As far as I'm aware the Touch Diamond, and its branded versions, are launching on every network in the UK. That's the complete opposite of Apple's 'one network per country' policy, and they consequently seem to have dropped it (for example, in Italy).

AGREED 100%!! I have been saying this on my podcast for quite a while.. It is a huge mistake. I am now saying since I just received my Diamond that I took one for the team.. I will post my review as the days go by...
SIGHHHH
Dark Fire said:
I don't think HTC cares about America too much any more because it's iPhone territory. As they haven't used their own branding until recently, I think HTC are looking to gain market control and loyalty, and that's easiest where the iPhone hasn't been a huge success.
Again, HTC seem to like doing exactly what Apple are not doing, so they may go for multiple carriers. As far as I'm aware the Touch Diamond, and its branded versions, are launching on every network in the UK. That's the complete opposite of Apple's 'one network per country' policy, and they consequently seem to have dropped it (for example, in Italy).
Click to expand...
Click to collapse

All of a sudden...getting Rogers 3G on x1i

OK, I must be dreaming! I looked at my x1i today, and I'm suddenly getting 3G/H. Until today, I've always only had Edge.
fieldtest.exe band shows 255:unknown
Ran speed test from dslreports.com using Opera; showing 1124 kbit/sec for a 1MB file test. Ran again with IE and got 1190 kbit/sec
I know the hardware specs on the x1i don't match up with Rogers 3g network, so did Rogers change their network recently?
This is an unlocked x1i with Generic UK ROM 1.05.931.10 R3AA010
I'm in Aurora, Ontario (north of Toronto).
Anyone else seeing this?

Rogers rolling out 3G on the 1900MHz band or you have an X1a.

I've had this x1i since December. So does anyone know if Rogers is changing, and has anyone else suddenly seen 3g?

I started noticing the 3G symbol about 2 days ago myself here in Toronto, before that it was 95% of the time E and sometimes just G. Now its 95% 3G and its unusual for it to go to E anymore. No idea though on benchmarks since I don't have a Data plan at the moment and so I only use it when I really need to. Will see if any friends have a data plan though and don't mind me borrowing my SIM for a few minutes and giving it a try, because I'm curious now. Getting the 30 fps VGA recording and 3G locally - that'd be awesome .
Peter

Thanks, pdamouse. This gives me hope that Rogers has changed their 3g network, and that I'll now finally have a really cool phone.
Anyone else seeing the same thing?
Anyone have a tech contact at Rogers that might be able to confirm?

maybe you just passed by one of the very few 1900mhz towers

Called Rogers tech support earlier; the rep I spoke with had no idea, so he asked a colleague. The colleague apparently said they now support all 4 frequencies.
The colleague was on a call, so I couldn't get any further info.
So theoretically, I was told that Rogers is now running 3g on 850, 900, 1900, 2100 mhz.
I have not been able to find anything on Rogers' site to confirm in writing.
Anyone else able to confirm?

Aha! Think it may be related to Rogers introduction of the HSPA+ ROCKET™ MOBILE INTERNET STICK
See: http://your.rogers.com/Store/Wireless/products/rstick_info.asp
Specs there indicate:
Technology: HSPA+/EDGE/GSM
Frequency:
HSPA+/UMTS 850/1900/2100Mhz
GSM/GPRS/EDGE 850/900/1800/1900Mhz
Data Transmission:
HSDPA – Up to 21Mbps downlink
HSUPA – Up to 5.76Mbps uplink

Great I am not the only one that noticed this. Last week I was walking to the subway and noticed 3G and H on my phone. I was blown away! I spent the weekend downtown and had 3G/HSPA everywhere. Couldn't do a speedtest but it was definately faster than EDGE.
From what I noticed, downtown Toronto now has 1900 3G but as you leave the city towards Mississauga you go back to EDGE.

gogadget said:
OK, I must be dreaming! I looked at my x1i today, and I'm suddenly getting 3G/H. Until today, I've always only had Edge.
Anyone else seeing this?
Click to expand...
Click to collapse
Got the same situation on last Friday when driving at 401 and 404. But didn't get a chance to test the speed before it jumped back to EDGE.

I'm getting 3g consistently in Aurora and Newmarket. Better in some areas than others.
Also noticed 3g as I was coming down the 404.
Now in Pickering, and it's completely back to edge.

ok wtf, i bought my phone from rogers, and i've been getting 3G and H for a month now, but i just checked settings->device information->identity and under model it says x1i not x1a. anyone else noticing this? maybe because of custom rom?

from http://forum.xda-developers.com/showthread.php?p=4579528
go into Settings, System, Device Information. Select the Hardware tab. Beside the first entry, CPU, you'll see one of two things:
"QUALCOMM(R) 7200A" means you've got X1i
"QUALCOMM(R) 7201A" means you've got X1a

jimwang76 said:
Got the same situation on last Friday when driving at 401 and 404. But didn't get a chance to test the speed before it jumped back to EDGE.
Click to expand...
Click to collapse
lol I live within 200 meters of where those highways meet (404/DVP and 401) - that might be why I've been seeing 3G on my phone 100% of the time I'm at home. I never thought being this close to the busiest highway intersection in Canada would help me get better cell reception - but apparently it does .

gogadget said:
Aha! Think it may be related to Rogers introduction of the HSPA+ ROCKET™ MOBILE INTERNET STICK
See: http://your.rogers.com/Store/Wireless/products/rstick_info.asp
Specs there indicate:
Technology: HSPA+/EDGE/GSM
Frequency:
HSPA+/UMTS 850/1900/2100Mhz
GSM/GPRS/EDGE 850/900/1800/1900Mhz
Data Transmission:
HSDPA – Up to 21Mbps downlink
HSUPA – Up to 5.76Mbps uplink
Click to expand...
Click to collapse
this was indeed due to the HSPA+ roll out rogers recently did. i can confirm this is the same situation on the west coast in Vancouver...thank you Rogers, now bell and telus the balls in your court.... pick it up!!

pdamouse said:
lol I live within 200 meters of where those highways meet (404/DVP and 401) - that might be why I've been seeing 3G on my phone 100% of the time I'm at home. I never thought being this close to the busiest highway intersection in Canada would help me get better cell reception - but apparently it does .
Click to expand...
Click to collapse
Lucky you. The 3G signal disapears at Finch, so I still can only get EDGE at home. Hopefully more towers will be upgraded soon.

Today I managed to stay in place long enough to do a speed test.
I got 2.2mbs down and 0.65 up. Not really mind blowing but I was in a building and wasnt getting full signal. Also, there is 3G in north Mississauga, it's weird.

jimwang76 said:
Lucky you. The 3G signal disapears at Finch, so I still can only get EDGE at home. Hopefully more towers will be upgraded soon.
Click to expand...
Click to collapse
Sorry man, I'm sure they will be adding more towers - the area is expanding quite quickly. I was suprised at getting the signal more than anything, and someone mentioning right where I live as the place they see it - I way way over use the : P smiley...

wait a second here
This thread doesn't make sense - I have read elsewhere that the X1a and the X1i have identical cell frequencies.
To confirm, can someone with an X1i do the following:
Go Start > Settings > Personal > Phone.
Select the Band tab.
The second drop-down box entitled "Select your GSM/UMTS band" should give the following options:
Auto
GSM(900+1800)+UMTS(2100+900)
GSM(1900+850)+UMTS(1900+850)
UMTS(2100)
Those are the options I get on my X1a, purchased directly from Rogers. Aren't those the options on your X1i as well?

benjaminries said:
The second drop-down box entitled "Select your GSM/UMTS band" should give the following options:
Auto
GSM(900+1800)+UMTS(2100+900)
GSM(1900+850)+UMTS(1900+850)
UMTS(2100)
Click to expand...
Click to collapse
I actually get this on my X1i:
Auto
GSM(900+1800)+UMTS(900+2100)
GSM(1900+850)+UMTS(1900+850)
UMTS(2100+800)
But we are discussing 3G support and HSDPA - they use different frequencies for that here as opposed to Europe, and the X1i uses those European Frequencies, while the X1a is specialized for North America. The GSM Quadband is a given that it will work everwhere there is GSM - but the 3G bands are not universal.
Peter

different nexus one

Hello,
I am looking to buy a used nexus one... I have found some deals on line
BUT my only concern is: how can I differentiate between the two different versions of the phone? My carrier is FIDO and I have a data plan with them, so I want the phone that allows 3G speeds with FIDO.
I want to know how to differentiate between the two because many sellers online dont know the difference themselves since they dont have a data plan. I would rather avoid going through the trouble of meeting the person and testing my SIM in the phone. If there was anyway I could tell them to read something off the phone that tells the phone apart.?
As of March 16, 2010, there are two versions of the Nexus One. Both versions of the Nexus One cover most major GSM and 3G providers in the US, Europe and Asia. On both phones, the GSM radio frequencies covered are 850 MHz, 900 MHz, 1800 MHz, and 1900 MHz. The original Nexus One also came along with UMTS frequency bands 1 (2100 MHz), 4 (1700 MHz), and 8 (900 MHz).[39], allowing it to access 3G throughout Europe, as well as on T-Mobile USA and WIND Mobile in Canada. The second version of the Nexus One supports UMTS frequency bands 1 (2100 MHz), 2 (1900 MHz), and 5 (850 MHz), allowing it to access 3G in most of Europe, as well as on AT&T Mobility in the USA and Rogers Wireless, Fido Solutions, Bell Mobility, and TELUS Mobility in Canada.
Thanks any help is appreciated.

For FIDO you' need At&t version of the phone.
Behind the battery:
FCC ID NM88PB99110 for Belus/Frogideros/AT&T version
FCC ID NM88PB99100 for AWS version
Courtesy of HowardForums.com

Mr ILIA said:
For FIDO you' need At&t version of the phone.
Behind the battery:
FCC ID NM88PB99110 for Belus/Frogideros/AT&T version
FCC ID NM88PB99100 for AWS version
Courtesy of HowardForums.com
Click to expand...
Click to collapse
Hey thanks man. Thats exactly the kind of thing I was looking for.

aziz831 said:
Hello,
I am looking to buy a used nexus one... I have found some deals on line
BUT my only concern is: how can I differentiate between the two different versions of the phone? My carrier is FIDO and I have a data plan with them, so I want the phone that allows 3G speeds with FIDO.
Click to expand...
Click to collapse
No, you dont.
You want the one that is only 2G with robbers.
The reason for this is that you will ultimately want to drop the ripoff and go with better phone service. No sense limiting yourself.
3G with robbers won't help you with anything except causing data overages. This will cost you horribly. 2G is a nice way to reduce/prevent data overages, and with robbers' data rates, this is pretty much MANDATORY.

lbcoder said:
No, you dont.
You want the one that is only 2G with robbers.
The reason for this is that you will ultimately want to drop the ripoff and go with better phone service. No sense limiting yourself.
3G with robbers won't help you with anything except causing data overages. This will cost you horribly. 2G is a nice way to reduce/prevent data overages, and with robbers' data rates, this is pretty much MANDATORY.
Click to expand...
Click to collapse
Hey stupid, did you happen to read the original post saying he has a data plan and wants to use 3G?
OP: Don't listen to lbcoder, you clearly stated you wanted to keep your 3G data so the AT&T one pointed out by Mr ILIA is the right phone.

Yeah, he's clearly angry with the cell phones thugs in Canada. And I don't blame him, but I currently can't get a cheaper deal with Wind than what Fido/Rogers gives me. (For my usage.)
Here's hoping Wind is really a great success though, then it won't take people 5 hours on the phone to get a good deal anymore.
But if you do want an unlimited everything plan, and live in the few cities that Wind is in, and don't plan to travel to other cities in Canada often. Then seriously consider them when your time is up.

Taknarosh said:
Hey stupid, did you happen to read the original post saying he has a data plan and wants to use 3G?
Click to expand...
Click to collapse
LOL!!! That's a style!

[Q] HTC Vivid on Tmobile 3G/4G?

Hi all,
I was wondering whether there would be any way to flash a custom modem or a ROM that would unlock the LTE bands so that the Vivid can access HSPA on Tmobile's network?
From what Ive read, the AT&T GS2 Skyrocket and the AT&T Galaxy Note have been unlocked through this method and Im not sure why the Vivid cant be since it shares much of the same specs between it and the Skyrocket & G-Note
Thanks

dante58 said:
Hi all,
I was wondering whether there would be any way to flash a custom modem or a ROM that would unlock the LTE bands so that the Vivid can access HSPA on Tmobile's network?
From what Ive read, the AT&T GS2 Skyrocket and the AT&T Galaxy Note have been unlocked through this method and Im not sure why the Vivid cant be since it shares much of the same specs between it and the Skyrocket & G-Note
Thanks
Click to expand...
Click to collapse
No that isn't possible, tmobile and att have different bands. I know that you could use a sim card on the vivid, but you wouldn't get the same speed.
Sent from my HTC PH39100 using xda premium

IIRC you can use a T-Mobile phone on ATT and get 2G but can't use ATT on TMO.
Sent from my HTC PH39100 using XDA

doktor buknasty said:
No that isn't possible, tmobile and att have different bands. I know that you could use a sim card on the vivid, but you wouldn't get the same speed.
Sent from my HTC PH39100 using xda premium
Click to expand...
Click to collapse
The LTE band can be used on Tmobile to get 4G download speeds. As visible here:
http://forum.xda-developers.com/showthread.php?t=1507825
OP is asking if this is possible for the Vivid, need a Tmobile radio to flash. Would be great if someone could work on it.

twolves14 said:
The LTE band can be used on Tmobile to get 4G download speeds. As visible here:
http://forum.xda-developers.com/showthread.php?t=1507825
OP is asking if this is possible for the Vivid, need a Tmobile radio to flash. Would be great if someone could work on it.
Click to expand...
Click to collapse
No. The LTE Band will never work on T-Mobile's GSM. What allows the Note and Skyrocket to work is that they have the pentaband hardware GSM modem and flashing a different software modem enables access to those frequencies on GSM.
Sent from my HTC PH39100 using xda premium

dante58 said:
I was wondering whether there would be any way to flash a custom modem or a ROM that would unlock the LTE bands so that the Vivid can access HSPA on Tmobile's network?
Click to expand...
Click to collapse
twolves14 said:
The LTE band can be used on Tmobile to get 4G download speeds. As visible here:
http://forum.xda-developers.com/showthread.php?t=1507825
OP is asking if this is possible for the Vivid, need a Tmobile radio to flash. Would be great if someone could work on it.
Click to expand...
Click to collapse
Uh yeah, it's going to be hard to get the LTE bands on the LTE radio on the phone to pick up UMTS/HSPA signal.
There's a reason why phones are usually advertised like:
GSM/EDGE 850/900/1800/1900MHz
UMTS/HSPA 850/1900/2100MHz
LTE AWS700MHz
They kiiiinda aren't interoperable. Note how you can't connect to UMTS 900MHz or use a Telstra LTE phone and get 1800MHz 2G service if the phone doesn't have that band in its 2G spectrum.
I remember reading about the pentaband radios having UMTS/HSPA 850/900/1700/1900/2100MHz. That's still pretty different than your standard quad-band GSM radio.

It is absolutely possible...given that the specs on GSM Arena and Phonescoop are right...
700 MHz Class 17, 1700/2100 MHz
It has the correct pair for Tmobile.
The only thing is whether or not you can flash the radio with a Tmobile equivalent (Amaze?) radio.
What happened to all the hardware hackers on this forum? It seems as if no one knows ANYthing about the interworkings of a network anymore.
Anyhow, the phone having the bands and knowing what to do with them are 2 different things. For example. Stereo FM 101.9 Mhz vs. HD(Digital)-FM 101.9...they're both on the same band/frequency but are utilized differently...
The signals are still transmitted on the same frequency, however the radio itself doesn't know how to decode/interpret the HD (Digital) signal...unless it is told how to do so.
The only place that this analogy differs is when it comes to actual comparison of FM receivers and Cellular phones. With FM receivers it actually requires a decoder to understand the digital signal being broadcasted...Cellular however just needs to be flashed and voila, you've got HSPA...
So. Yes. It is %100 possible.

NO NO NO NO.
LTE bands do NOT equal GSM. Not going to happen. They are physically different receivers for lack of a better phrase. There is no way to do this without physically changing hardware. Also, you realize T-Mobile's "1700" frequency does not actually mean 1700 on the dot. They use a different subset of actual radio bands than AT&T's 1700 LTE. As in 1721-1727 or some such vs 1781-1793 or something. I don't know the actual frequencies, but you get the drift.
Sent from my Lumia 900 using XDA Windows Phone 7 App

It is absolutely possible. No question about it.

Then do it. For one, there is no compatible modem to flash. Two, it isn't possible.
Sent from my Lumia 900 using XDA Windows Phone 7 App

Hand is hitting my face so hard right now.
RavenII, if it's so possible, then why don't you do it? If you can't, give a large donation to one of our developers and tell them to do it.
I, and many others here are blatantly telling you it's not possible for clear reasons.
The Galaxy Nexus has a PENTABAND UMTS/HSPA "3G" radio. 850/900/1700/1900/2100. That's why it can access TMobile's 3G and faux-G. We here, on the HTC Holiday, have a tri-band 3G radio.
DIRECTLY from your sources at GSM ARENA and PHONESCOOP. I've added HTC.com for good measure:
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 1900 / 2100
4G Network LTE 700 MHz Class 17 / 1700 / 2100
GSM 850 / 900 / 1800 / 1900
LTE 700 / 1700
WCDMA 850 / 1900 / 2100
LTE (AWS/700), HSPA+/UMTS Tri-band (850/1900/2100MHz), and tri-band GSM/GPRS/EDGE (850/900/1800/1900MHz)
What? I'm sorry, I couldn't hear you over the fact that "3G network/WCDMA/HSPA+/UMTS" doesn't have 1700MHz. Oh wait, I couldn't hear you over the fact that TMobile's faux-G is not based on LTE, nor is it 4G (big hint: it's 3G HSPA-based service ).
GSM Arena and Phonescoop also do not account for the of LTE bands supported by the Vivid. Each region of the Holiday pretty much only supports the LTE band in that region. Rogers and ATT only supports AWS700, Telstra only supports 1800, etc.

I'm glad I'm not the only one to retain my senses about this. Leave it to a fellow Saab fan to explain it correctly.
Sent from my Lumia 900 using XDA Windows Phone 7 App

Ok...I really didn't want to do this since I HATE spoon feeding people on forums...but here goes. And try to keep up because I'm only going to dumb it down so much.
What you guys are mistaking for "Bands"...really ARE NOT BANDS....there is NO SUCH THING as an LTE band...or HSPA+ band...
There are Network types ...LTE, HSPA+, -Insert other modulation/channeling scheme here-, etc.
There are Frequencies (which are actually specific ranges but for the sake of confusion, they're referred to as the following 700, 800, 850, 900, 1700, 1900, 2100...etc.) By the way...all those frequencies fall under the UHF band...
So far we've established that there are Network types...and different frequencies...are you still with me? Any questions?
Ok, onward.
There exists something called an SDR or Software Defined Rado...it has the ability to receive and transmit on certain frequencies...It's the software that defines how much of that frequency to use per channel (1Mhz, 25khz, etc.), what range of frequencies to use, how to use them, how much power to use while transmitting, among MANY other things (what frequency to send on, which to receive on, etc.)...That's how they came up with "Software defined radio"
If you look at the Product Brief for the MSM8X60/APQ8060 you should notice all of the frequencies that these specific chips support...
I really don't want to lose you guys, still following?
You might notice that the APQ8060 doesn't have a WWAN modem...but what does THAT mean? It means that it needs something like ohhhhh let's say the MDM9200...FINE! Here's one more spoon full
Reader to me: But RavenII...you're being a condescending ****, and we still don't know what the hell your point is...you're spewing all this **** like you're some know it all...
Me to Reader: There there grasshopper. I will get straight to it...
With all of the information I've given you...you should be able to see that when you see something like "LTE (AWS/700), HSPA+/UMTS Tri-band (850/1900/2100MHz), and tri-band GSM/GPRS/EDGE (850/900/1800/1900MHz)"...it means the radio is...
Being told to use LTE Standards (modulation, channeling, frequency steps, etc.) on AWS/700 (which if they're using AWS to signify Band IV...it would in turn mean 1700/2100), HSPA+/UMTS Standards on 850/1900/2100MHz...etc.
Still reading?
When I say that it is %100 possible...I'm saying that with software or "flashing the radio"...you can effectively change/tell what the chip should do (in this case either an MSM or MDM) with the frequencies it's capable of transmitting/receiving on. That's it.
Aus_Azn: I really hope you didn't leave a hand print on your face...
Thank you, good night.
One last thought: I never said that I would do it, I said that it's possible...

Here's the real simple way to explain it: it is theoretically possible to do but no one outside of HTC has the skill or proprietary code to do it.
So for all intents and purposes, impossible. It will not now nor ever happen.
Also, while the chip may support all bands from the factory that initially fabricated the chip, it may be locked at a firmware level (not a software radio, but actual ROM on the physical chip) that a software based radio cannot affect. This is why you can't just flash a T-Mobile software radio on another AT&T s-off device and have it work. The physical chip itself DOES NOT SUPPORT THE FREQUENCY NEEDED due to changed firmware configuration.
Is that condescending enough for you?
Sent from my HTC One X using xda premium

Let's see, how can I put this...You're still wrong. It's still possible.
I don't even own a Vivid so I'm no longer going to post to this thread...but I will tell you this...everyone once told me that blackberrys could not have data without having the BIS (Blackberry specific plan)...and guess what. I'M the reason that people are hacking them away. I was the first one to figure it out and prove everyone wrong. While I don't have a phone that I need to convert for T-Mobile, you can bet, that once there's a phone that I want to use on T-Mobile's network...I'll more than likely find a way.
Farewell.

@totally off topic
RavenII I think you're going on the right track here. I'm already convinced by what your saying.
peaceout

What RavenII is saying does have a good base logically because it has been done before for a very similar set of hardware to the raider. The ATT Galaxy S2 Skyrocket and the ATT Note LTE are both phones featuring very similar processor and modem as the Raider. The APQ8060 and MDM9200 (i think).
Samsung released devices with this modem running on all sorts of bands 1700, 850, 1900, 2100 and even LTE on 1700 and 700.
The ATT Versions of the devices do not feature UMTS in AWS range however people have simply flashed the modem from the T-Mobile version of the device which doesn't have LTE and the ATT LTE devices actually started working on UMTS AWS bands. Various modems give various degrees of success but it is possible and has been confirmed many many times over.
Here is the thread for the ATT Skyrocket. You will find people doing the same thing on ATT Galaxy Note LTE.
http://forum.xda-developers.com/showthread.php?t=1507825

You guys are funny, now I can't wait to get my Vivid which I just received today running on T-Mobiles "4g". The funny thing about this is when i very first started reading this thread and saw Mr. buknastys' reply, I was thinking "That is absolutely not true". Now I'm not going to go into detail or try and prove any points, as Raven has done a perfectly fine job proving his point and answering the OPs question. Bottom line; the two readers are absolutely wrong and Raven is absolutely right. Also one last thing, I love how suddenly a firmware "lock" is something of an obstacle, yet we have gained S-Off on nearly every HTC bootloader out there. Just sayin..

motoxxx138 said:
You guys are funny, now I can't wait to get my Vivid which I just received today running on T-Mobiles "4g". The funny thing about this is when i very first started reading this thread and saw Mr. buknastys' reply, I was thinking "That is absolutely not true". Now I'm not going to go into detail or try and prove any points, as Raven has done a perfectly fine job proving his point and answering the OPs question. Bottom line; the two readers are absolutely wrong and Raven is absolutely right. Also one last thing, I love how suddenly a firmware "lock" is something of an obstacle, yet we have gained S-Off on nearly every HTC bootloader out there. Just sayin..
Click to expand...
Click to collapse
I really didn't mean to come off as a **** in this thread, but it seems as if though people have forgotten about actual hacking and everything has moved to "Supercharging" and theming...it's saddening, I come from a time where there was no such thing as impossible.
...I encourage you to try, but do so with a lot of caution...because the fact of the matter is...you can brick your device...
Happy hacking.

THANK YOU!!!
RavenII said:
I really didn't mean to come off as a **** in this thread, but it seems as if though people have forgotten about actual hacking and everything has moved to "Supercharging" and theming...it's saddening, I come from a time where there was no such thing as impossible.
...I encourage you to try, but do so with a lot of caution...because the fact of the matter is...you can brick your device...
Happy hacking.
Click to expand...
Click to collapse
I would just like to say thank you to Raven as I now have a AT&T Vivid and have successfully placed it on the T-mobile 3G network working 100% of the time. I will be putting together a full tutorial on how to do this shortly as it was indeed a challenge. I have been reading these forums for awhile and Raven your post has by far been one of the most beneficial and inspiring ones...thanks for sticking it out on these forums...few do these days. I actually just joined this forum after months of reading because of this post. I figure i too will provide feedback. I am actually a Tech Manager w/ Sprint. I work on these things everyday in other words....hints why I actually have a T-mobile phone lol. Not saying T-mobile is the best but you at least get exactly what you pay for and they are honest about coverage haha. Anyways..back on topic...the HTC Vivid is an interesting phone to root even and get the S-off. It is needed in order to get the sim unlocked. You have to do a combo of the rooting kit "Vivid_All_in_One_kit_v2.2" posted on another section and the "ControlBearRelease_holiday_ICS_WIN" (if your running Win 7). After you do what they call the "wire trick" (basically short the sim reader temporarily to allow temp access to flash) you can get the sim lock off. After that it is simple trial and error with modem flashes from various tmobile devices onto the HTC Vivid to get the 3G up and going. Mine actually kicked on with the AT&T radio flashed at first but I only had coverage in certain areas. Basicly it will depend alot on your local towers. Believe it or not...ALL CELL TOWERS ARE LEASED FROM VARIOUS COMPANIES LIKE SONY ERICSON WHICH MAINTAIN THEM ALL ALMOST!!...therefore it is very dependent on the towers in your area which radios are likely to work if not the stock modem on the device. It depends on what lease and roaming agreements are in place in your region....again...I WORK ON PHONES EVERYDAY FOR SPRINT...know a little about all that stuff...trust me...i have people yelling everyday about not having this or that when most of it is the carrier hasnt signed an agreement with Kyocera or whom ever to support that device or the lease contract has expired and will be resigned in a few days....bottom line is ....if the phone has a radio chipset that supports multibands and frequencies it is almost always possible to do what ever you would like with it. As far as firmware lock....too funny...those do not work on Android devices as the chipsets were intentionally designed to be unviersal to all carriers to cut manufacturing costs...much like in automotives where Mazdas and Fords use the same parts...just a reference. Anywho....It really is possible...it just takes research and a TON of time sometimes but that is the point of hacking....most would have said the Xbox Kinect wouldnt have been able to been hacked or the Wii remote seeing as both those use internal chips that range in the thousands if sold for other purposes. Long story short....happy hacking and Thanks to all of you for a great discussion forum.

[Q] Sony Xperia C6903, LTE on AT&T

I emailed GSM Nation to see when they would received the C6906 because I want to use LTE on AT&T. They sent me a reply saying that many of their customers use AT&T, and have been reporting LTE working.. Are they just blowing smoke up my ass? If not, is there a way to see what bands are active in each cities?

svfusion said:
I emailed GSM Nation to see when they would received the C6906 because I want to use LTE on AT&T. They sent me a reply saying that many of their customers use AT&T, and have been reporting LTE working.. Are they just blowing smoke up my ass? If not, is there a way to see what bands are active in each cities?
Click to expand...
Click to collapse
i'd be cautious about buying the C6903 and using it on AT&T in the U.S. I had the international version of the Z earlier in march C6603 and i never got LTE on that phone, only HSPA+. I used this phone in Minneapolis and never saw LTE. I also did a road trip from Pittsburg to Orlando and never saw LTE on the way anywhere. Also used in Miami without LTE.
I believe its important to have the 700 band if you want to see LTE on the AT&T network on a device.

sunny051488 said:
i'd be cautious about buying the C6903 and using it on AT&T in the U.S. I had the international version of the Z earlier in march C6603 and i never got LTE on that phone, only HSPA+. I used this phone in Minneapolis and never saw LTE. I also did a road trip from Pittsburg to Orlando and never saw LTE on the way anywhere. Also used in Miami without LTE.
I believe its important to have the 700 band if you want to see LTE on the AT&T network on a device.
Click to expand...
Click to collapse
You can use the 6903 model on AT&T, I'm using the Z1 on it right now. But to get LTE support you are correct, you need the 700Mhz band which is in the 6906 model.

Bleh, I had the same concern and called ATT and asked. The guy told me this.
ATT uses 700-1400mhz spectrum. meaning 700 though, not and. So any device that supports bands "in that range" will work fine. Was he misinformed, or is that right? When is the damn xxx6 model coming out anyway?

I'm using the xperia on ATT right now no LTE but I do get hspa+ which is fine (is a 50mbps connection REALLY needed for a phone?) Anyways there is a chance that LTE may work in the US because ATT is rolling out and already has the 1700mhz band in a bunch of cities: Phoenix, Raleigh, San Juan, Los Angeles, Las Vegas, Oklahoma City, Dallas, Chicago, Charlotte, Athens, GA and College Station, TX. The Nexus 4 people were reporting that it works but not sure about Z1. I'm not from any of these cities so i can't confirm if its working. Maybe someone can?

n4v1n said:
is a 50mbps connection REALLY needed for a phone?
Click to expand...
Click to collapse
When it's been shown to give better battery life thanks to race to idle advantages? Absolutely.
http://www.anandtech.com/show/6330/the-iphone-5-review/13
>The non-LTE phones see a sharp drop in battery life. At least at 28nm the slower air interfaces simply have to remain active (and drawing power) for longer, which results in measurably worse battery life.
This doesn't work on slower LTE networks like verizon, but for us on ATT we can get better battery life while enjoying faster speeds. Note that in that graph anandtech measures HSPA+ as "3g", as it is 3g, despite ATT and verizon's marketing. I make this distinction to prevent people from thinking they are testing the older 1.4mbit or whatever network they used to use.
I'm probably going to get the Z1 without LTE functionality in my area anyway, because at the end of the day I'm without a smartphone right now (my HTC one got washed with my clothes and doesn't do much other than vibrate when it's plugged in now) and don't want to wait for Sony to stop being lazy and put out the model with 700mhz LTE.

youwonder said:
Bleh, I had the same concern and called ATT and asked. The guy told me this.
ATT uses 700-1400mhz spectrum. meaning 700 though, not and. So any device that supports bands "in that range" will work fine. Was he misinformed, or is that right? When is the damn xxx6 model coming out anyway?
Click to expand...
Click to collapse
youwonder said:
When it's been shown to give better battery life thanks to race to idle advantages? Absolutely.
http://www.anandtech.com/show/6330/the-iphone-5-review/13
>The non-LTE phones see a sharp drop in battery life. At least at 28nm the slower air interfaces simply have to remain active (and drawing power) for longer, which results in measurably worse battery life.
This doesn't work on slower LTE networks like verizon, but for us on ATT we can get better battery life while enjoying faster speeds. Note that in that graph anandtech measures HSPA+ as "3g", as it is 3g, despite ATT and verizon's marketing. I make this distinction to prevent people from thinking they are testing the older 1.4mbit or whatever network they used to use.
I'm probably going to get the Z1 without LTE functionality in my area anyway, because at the end of the day I'm without a smartphone right now (my HTC one got washed with my clothes and doesn't do much other than vibrate when it's plugged in now) and don't want to wait for Sony to stop being lazy and put out the model with 700mhz LTE.
Click to expand...
Click to collapse
The only reason it improves battery life is because its take you less time to download things which is a given. If you're constantly downloading extremely large files then maybe you need it, but for me not so much.

svfusion said:
I emailed GSM Nation to see when they would received the C6906 because I want to use LTE on AT&T. They sent me a reply saying that many of their customers use AT&T, and have been reporting LTE working.. Are they just blowing smoke up my ass? If not, is there a way to see what bands are active in each cities?
Click to expand...
Click to collapse
The answer is yes, they are blowing smoke up your ass. In order for a phone to get AT&T LTE, you need Band 17. That is their primary LTE band. They also supplementarily use Band 2, 4, and 5 in select cities where they don't have Band 17. Similar thread in the Z Ultra forums, which have similar models which might clarify this more if you need more details.

n4v1n said:
The only reason it improves battery life is because its take you less time to download things which is a given. If you're constantly downloading extremely large files then maybe you need it, but for me not so much.
Click to expand...
Click to collapse
You did not read the source I linked I think. It shows web browsing, not downloading massive files. LTEs speed and therefore race to idle advantage applies to more than just downloading large files, it shows battery savings in normal day to day use, from things that drain quite a bit of battery like browsing to smaller things like syncing gmail accounts.

n4v1n said:
I'm using the xperia on ATT right now no LTE but I do get hspa+ which is fine (is a 50mbps connection REALLY needed for a phone?) Anyways there is a chance that LTE may work in the US because ATT is rolling out and already has the 1700mhz band in a bunch of cities: Phoenix, Raleigh, San Juan, Los Angeles, Las Vegas, Oklahoma City, Dallas, Chicago, Charlotte, Athens, GA and College Station, TX. The Nexus 4 people were reporting that it works but not sure about Z1. I'm not from any of these cities so i can't confirm if its working. Maybe someone can?
Click to expand...
Click to collapse
uly609 said:
You can use the 6903 model on AT&T, I'm using the Z1 on it right now. But to get LTE support you are correct, you need the 700Mhz band which is in the 6906 model.
Click to expand...
Click to collapse
What speeds are you guys getting on ATT with the C6903? If the C6906 isn't shipping anywhere by midnext week I'm going to order the C6903, I've been android less for 2 weeks now, I'm going crazy. I don't use my phone as a hot spot or for file downloads, so I don't need crazy speeds which I don't even get anyway LTE wise in my area, usually 22mbps max and on average upper teens.

QwaarJet said:
What speeds are you guys getting on ATT with the C6903? If the C6906 isn't shipping anywhere by midnext week I'm going to order the C6903, I've been android less for 2 weeks now, I'm going crazy. I don't use my phone as a hot spot or for file downloads, so I don't need crazy speeds which I don't even get anyway LTE wise in my area, usually 22mbps max and on average upper teens.
Click to expand...
Click to collapse
I'm getting 8.22 Mbps down and 1.13 Mbps up with full bars on AT&T right now. I'll do a few more tests to check for consistency.
EDIT: Just ran another test and I got 9.21 Mbps down and 1.13 Mbps up.

I'm full bars on my Lumia 920 here at work, only getting 5/0.6 on LTE so I guess C6903 would do just fine. I only ever get good LTE speeds at home, but I use my phone on my wifi connection there so it's not very useful. Thanks!

I received my Sony Xperia Z1 from GSM Nation yesterday and can vouch for the fact that the 6903 model will in fact NOT work with AT&T's 4G LTE network. I live in New York City too, if that means anything. I spent the entire afternoon trying to connect to the LTE network. Instead, I was able to connect to the 3G (HSPA+) network and that's it.
I am very unhappy about this and will be returning the phone to GSM Nation immediately. I love LTE speed and did not know that battery life was affected by it too (thanks for that youwonder!) so I'll patiently wait for the 6906 model to be released. Does anyone know when that might happen? I can live with my old Galaxy Note II for now I suppose. Agh!

QwaarJet said:
What speeds are you guys getting on ATT with the C6903? If the C6906 isn't shipping anywhere by midnext week I'm going to order the C6903, I've been android less for 2 weeks now, I'm going crazy. I don't use my phone as a hot spot or for file downloads, so I don't need crazy speeds which I don't even get anyway LTE wise in my area, usually 22mbps max and on average upper teens.
Click to expand...
Click to collapse
I actually am in an area where I get LTE on AT&T with the 6903 interesting, it does get the normal speeds so highest so far 20 down which is pretty good.

AhsanU said:
I received my Sony Xperia Z1 from GSM Nation yesterday and can vouch for the fact that the 6903 model will in fact NOT work with AT&T's 4G LTE network. I live in New York City too, if that means anything. I spent the entire afternoon trying to connect to the LTE network. Instead, I was able to connect to the 3G (HSPA+) network and that's it.
I am very unhappy about this and will be returning the phone to GSM Nation immediately. I love LTE speed and did not know that battery life was affected by it too (thanks for that youwonder!) so I'll patiently wait for the 6906 model to be released. Does anyone know when that might happen? I can live with my old Galaxy Note II for now I suppose. Agh!
Click to expand...
Click to collapse
Heres the message I got to the query, about at&t lte from GSM Nation, also asked them about 6906. Edited out private stuff.
"at&t's main frequency for LTE is 700 mhz so the 6903 working is really upto where in the US you live and that is unfortunately not information we would have. It is certainly limited markets for 1700's but these are just reports from customers from our followups.
Regardless we do not advertise it as compatible with at&t due to it being limited markets. And would advise that customers purchase it for use with at&t LTE at their own risk. The c6906 model traditionally comes to carriers first so that would be the safest bet at this time if your looking for at&t LTE. It should be available soon in the US."
seems pretty clear cut.

Sony Xperia ZL C6503 also no LTE
Rebsters said:
Heres the message I got to the query, about at&t lte from GSM Nation, also asked them about 6906. Edited out private stuff.
"at&t's main frequency for LTE is 700 mhz so the 6903 working is really upto where in the US you live and that is unfortunately not information we would have. It is certainly limited markets for 1700's but these are just reports from customers from our followups.
Regardless we do not advertise it as compatible with at&t due to it being limited markets. And would advise that customers purchase it for use with at&t LTE at their own risk. The c6906 model traditionally comes to carriers first so that would be the safest bet at this time if your looking for at&t LTE. It should be available soon in the US."
seems pretty clear cut.
Click to expand...
Click to collapse
PMFJI. I own the C6506 (Sony branded, carrier unlocked) which support a wide range of bands including LTE IV and LTE XVII, both of which are used by AT&T. In addition, I get PCS 1900 which AT&T is rolling out.
I get NO LTE service and I was told this is by design. If you do not own an AT&T branded phone, the network will not permit you on the LTE network. I am provisioned for LTE but I cannot get even 4G.
This was not explained by anyone and it took me a number of support calls and escalations to learn this. I believe the only way to effect change on this rregressive policy is for people to complain. There is no reason to penalize BYOD customers who choose not to own an AT&T branded device.
My device specs for LTE: 4G Network LTE 700 / 850 / 1700 / 1900 / 2100 - C6506