[Q] Different Radios? UMTS 900 interested - Motorola Photon 4G

If there's any different radios for MoPho?
I wanna get UMTS 900 working on Photon. I know that it's not listed in the specs, but so as for Atrix 4G, and guy here flashed another radio and got UMTS working.
So, if there's any info about MoPho?
Where i can get stock radio, so i can try another one?
If Atrix 4G's radio will work for Photon? (I suggest hardware is pretty the same).
Any input on this is appreciated.

Kovyrshin said:
If there's any different radios for MoPho?
I wanna get UMTS 900 working on Photon. I know that it's not listed in the specs, but so as for Atrix 4G, and guy here flashed another radio and got UMTS working.
So, if there's any info about MoPho?
Where i can get stock radio, so i can try another one?
If Atrix 4G's radio will work for Photon? (I suggest hardware is pretty the same).
Any input on this is appreciated.
Click to expand...
Click to collapse
from what im seeing here
-----The phone operates at frequencies of CDMA 800 / 1900 / GSM 850 / 900 / 1800 / 1900 / CDMA2000 1xEV-DO Mhz. -----
i would think it would work does it not work for you? , the photon community is still working hard on getting everything unlocked fully and right now what seems to be the main focus for the dev community is getting roms and wimax to work on an unlocked bootloader,

OK. first of all i'm personally not interested in CDMA part.
It operates
GSM 850 / 900 / 1800 / 1900
UMTS(WCDMA as i understand) 850 / 1900 / 2100
Local operator uses UMTS 900. So EDGE only for me. And i got H+ icon with another operator.
But i suggest the only difference is the radio flashed in the phone.
One user on XDA reported that he get UMTS 900 working on hit Atrix 4G. (Atrix got the same freqs listed as Photon, without UMTS 900).

Kovyrshin said:
OK. first of all i'm personally not interested in CDMA part.
It operates
GSM 850 / 900 / 1800 / 1900
UMTS(WCDMA as i understand) 850 / 1900 / 2100
Local operator uses UMTS 900. So EDGE only for me. And i got H+ icon with another operator.
But i suggest the only difference is the radio flashed in the phone.
One user on XDA reported that he get UMTS 900 working on hit Atrix 4G. (Atrix got the same freqs listed as Photon, without UMTS 900).
Click to expand...
Click to collapse
so far as i know they havent gotten a full unlock of the frequencies they use and since the photon is really sprint only here in the states, it makes it hard to jump from one band to another since no one really has it, i know that in japan they had a wimax photon, that one might be a shot i just have no clue where to find a sbf file for it nor whether or not it would even flash to the sprint photon, are you out of the US and if so which provider?

There's a topic with leaked sbf that says wimax working. not sure if it's from japan.
I cannot find any radio in .zip or .sbf file. If i could find one, even stock radio, I could try flashing one from Atrix. Dunno if it help or not, but why not to try?
Yep, I'm out of US, in Kazachstan.
Beeline and Tele2. Second one require UMTS 900.

Kovyrshin said:
There's a topic with leaked sbf that says wimax working. not sure if it's from japan.
I cannot find any radio in .zip or .sbf file. If i could find one, even stock radio, I could try flashing one from Atrix. Dunno if it help or not, but why not to try?
Yep, I'm out of US, in Kazachstan.
Beeline and Tele2. Second one require UMTS 900.
Click to expand...
Click to collapse
talk with joker or shabby they should know where its at, im not that far into developing as they are, im just trying to learn as i go

This is definitely something i would like to see happen in the future. Im moving to Sydney at the end of this month and plan to take trips frequently to area that only have dual band coverage on Optus (UMTS900/2100). So until someone hacks this i will only have 3G in Sydney where they have HSDPA2100Mhz.

Related

[Q] EVo 3D works in Europe?

Hello
I`m in California now. I really want to buy the EVO 3D without contract here.
I live in Switzerland. We don`t have 4g or Wimax.
AFAIK we have GSM, UMTS, HSDPA, EDGE, 3G.
Is the Hardware in the phone working in Switzerland?
For Software I will install custom roms.
Thank you
Nope, wait for the gsm version, should be out soon around the world
Sent from my PC36100
Are you sure?
Here are the specs: http://www.gsmarena.com/htc_evo_3d-3901.php
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 1700 / 2100
I think we have the same in Switzerland...
The Nexus One I ordered from USA too, works perfectly...
Can anyone say why this phone is different?
Thank You
It's not a GSM phone. It uses CDMA (no SIM card) so it will not be compatible with any European networks.
Oh, thank you for explaining me. I did` t know the difference.
Well, then I have to wait...
Maybe I can at least go to bestbuy and check the phone out.

[Q] Carrier

I have a brand new unlocked Streak with an AT&T sim card in it, from my old lg vu. All I have is just the calling plan. I want to get a no contract unlimited plan to get online, etc., since I now have this beautiful new phone. Which carriers can I use and which are the cheapest? AT&T's data plan seems too pricy. Thanx, in advance, for the help...
Your only alternative to AT&T is T-Mobile, and if your phone was bought direct from Dell, it will be a very painful alternative in terms of speed. Streaks purchased direct from Dell cannot see all of T-Mobile's frequencies, and thus data will be limited to EDGE (2G) speeds.
Bite the bullet and get an AT&T smartphone plan. Even though T-Mobile has an unlimited everything plan, the penalty you pay in speed offsets any savings you might gain from changing carriers.
Carrier, Network
I bought my Streak off of Ebay from someone in Canada. It was brand new from Rogers. I unlocked it through Dell. Does this make a difference? I have seen unlimited plans from Boost Mobile and Straight Talk and was curious if my Streak would work on their networks. I read on another site that the unlocked Streak would work on any network. Just looking for other info... Thanx.
Unlocked GSM type phones will generally work on any GSM type network.
Boost mobile is a CDMA type network and straight talk is by tracfone? Straight talk might work depending on the donor phone (or if you can get a bare sim card)
Rogers is basically the At&t of the north in the way they handle the streak, and more importantly in compability between phones.
They're both 3g 850/1900
Tmobile is 1700.
The US streak is 850/1900/2100 (which is the one offered by the dell website/rogers/at&t)
straight talk uses verizon/at&t/tmobile as it's base network(?)
You'll get call/2g off either tmo's or at&t's networks and straight talk if it uses their network for coverage.
You wont get 3g except on the at&t 3g available portions of the network.
You cant use boost mobile at all if it's only CDMA, only if they offer GSM service on top of CDMA
TheManii... Thanx for the reply and the help. At least now I have a starting point. I am really new to all this and any help and advice is really welcomed and appreciated. Keep the info coming... Thanx again.
Unlocked Tmobile phone, ST sim
Hello, noob here... This is the closest thread I've found to my problem after extensive searching, and not being "senior" enough to post on more experienced threads. My issue: I have an unlocked Tmobile branded Moto Defy. Put the sim from my Straight Talk E71 in there, and, as many have said before, I only get edge speeds. I've read other forums of people claiming to pick up the HSPDA 850 band, but would have to travel hundreds of miles from SC to actually prove that. My real question here is, why can't my truly quad band Defy pick up the same exact HSPDA 850 / 1900 bands that my Straight talk Nokia E71 was picking up? Do I have to root it? Can you explain why exactly it doesn't pick up the AT&T 1900 band? Themanii, you seem knowledgeable here. Any info is much appreciated. Thanx.
Here's the info for the two phones:
Defy: 2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 2100 HSDPA 1700 / 2100 or HSDPA 850 / 1900
E71: 2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 900 / 2100 HSDPA 850 / 1900 - American version
info derived from gsmarena.com
Firstly dont bump old threads, to granted this one isnt THAT old.
Which carrier are you on exactly?
If you're on Tmo USA your e71 doesnt support AWS(1700)
If you're using At&t with your AWS defy it doesnt support 1900
Defy = 900/1700/2100 OR 850/1900
E71 = 900/2100 OR 850/1900

[Q] Baseband frequency (Radio)

Hi guys,
I am using 77.30P radio in Brazil and having problems with the signal, the carriers here are a mess, the same carrier uses from 850mhz to 2100mhz...
My question is, what basebandd (radio) can i flash which uses all those frequencies?
If someone can help me out by pointing the know frequencies for the most common radios available it would be of great help!
Thanks in advance
All AT&T radios can use UMTS (3G) 850 and 2100 if I recall correctly.
turl1 said:
All AT&T radios can use UMTS (3G) 850 and 2100 if I recall correctly.
Click to expand...
Click to collapse
Do you know where can i find that information for sure?
If this issue is not related to baseband, i have to start looking somewhere else...
luizffgarcia said:
Do you know where can i find that information for sure?
If this issue is not related to baseband, i have to start looking somewhere else...
Click to expand...
Click to collapse
Google what bands does AT&T use for 3G. But as I said, I think it's 850 and 2100.
AT&T uses the 850 and 1900 bands for 3G. As for the radio version, use the one that came with your phone. The atrix supports W-CDMA 850/1900/2100 for the AT&T version but mine in addition to those listed above, supports the 900 band as printed on the box.

[Q] hey guys looking for a straight answer

Ok guys I have an atrix 4g running on t-mobile. My question is why cant I get 4g/3g on this phone ? T-mobile runs on the 2100 band and the phone does support that band so why no 4g or 3g? common sense would tell me that if t-mo runs 4g on 2100 and the phone is capable of running on 2100 that it would work. have searched for a total of about 4 hours or so over the past couple days and cant find a straight answer only thing i can find is that att doesnt run on 2100 band yet the phone does. thanks in advance to anybody that can answer and taking the time to read.
are you getting H+ or H? (This is "3.5g") The Atrix 4g is not a true 4g phone.
Because the 2100 spectrum that you're using the phone on now is part of the quad-band gsm which is edge/2g. The difference lies in the bands used for 3g/4g, in which case AT&T only uses 850/1900 and tmobile only uses 1700/2100.
There is also a bunch of things that include HSPA, AWS, WCDMA, and so on and so on but I don't know enough about that to comment.
EDIT: Also, the only phones I know that can be used on both AT&T and Tmobile 3g/4g are "penta-band" phones like some European Nokia phones and the unlocked Galaxy Nexus that needs to be imported as well.
shattar01 said:
Ok guys I have an atrix 4g running on t-mobile. My question is why cant I get 4g/3g on this phone ? T-mobile runs on the 2100 band and the phone does support that band so why no 4g or 3g? common sense would tell me that if t-mo runs 4g on 2100 and the phone is capable of running on 2100 that it would work. have searched for a total of about 4 hours or so over the past couple days and cant find a straight answer only thing i can find is that att doesnt run on 2100 band yet the phone does. thanks in advance to anybody that can answer and taking the time to read.
Click to expand...
Click to collapse
Wcdma=utms=3g
Yes, WCDMA and AWS(1700), as far as I know, are both from UMTS and the differences in regards to 3G between AT&T and Tmobile lie in the spectrum use (850&1900 vs 1700&2100). And both AT&T and Tmobile use HSPA(+) based off their respected UMTS frequencies.
I just don't understand the "leap" in GSM technology that breaks the quad-band compatibility, that's all.
matthew5025 said:
Wcdma=utms=3g
Click to expand...
Click to collapse
Also I've read 850 is att's main spectrum for large areas and 900 for T-Mobile. All higher spectrums are for smaller, rural areas.
If your looking for 3g maybe find a town or, buy a dual band amplifier? That's IF they have 2100 MHz band working where you are located.
Lower bands ie 850/900 are the download streams. 1700/1900/2100 are upload streams. If I'm not mistaken
Also a T-Mobile vibrant supports att, it also has our main band, 850mhz. Again which is the main large areas, like T-Mobile 900mhz. 1700-2100mhz for att/T-Mobile range is only as good as the towns that still has that band currently operating for hspa/3g data. I've seen alot of T-Mobile phones that have 850/1900/2100, and work on att. If they were 1600/1900/2100 did not for me.
You need that lower frequencies to ensure it to work. Then....
Also for regional based frequencies...
http://en.m.wikipedia.org/wiki/Universal_Mobile_Telecommunications_System
That link will let you know what that all really means.
I think you are mixing up gsm and umts.
GSM = 2G/Edge
UMTS (HSPA, HSPA+, HSDPA/HSUPA, WCDMA, AWS) = 3G
Have a look here. You will see they label "3G" as "UMTS" which is HSPA/WCDMA. A little more down you can see they label their data as "HSDPA", which is download, and "HSUPA" which is upload. Further delineating the speeds they label either one as UMTS for down and Edge as up, which to me tells me they use gsm for the upload and only use UMTS for download. Either way, there is not a T-mobile phone available that can be unlocked and used on AT&T's 3G, just 2G and vice versa. As I have previously mentioned, you will need a penta-band phone for that.
Ciloteille said:
Also I've read 850 is att's main spectrum for large areas and 900 for T-Mobile. All higher spectrums are for smaller, rural areas.
If your looking for 3g maybe find a town or, buy a dual band amplifier? That's IF they have 2100 MHz band working where you are located.
Lower bands ie 850/900 are the download streams. 1700/1900/2100 are upload streams. If I'm not mistaken
Also a T-Mobile vibrant supports att, it also has our main band, 850mhz. Again which is the main large areas, like T-Mobile 900mhz. 1700-2100mhz for att/T-Mobile range is only as good as the towns that still has that band currently operating for hspa/3g data. I've seen alot of T-Mobile phones that have 850/1900/2100, and work on att. If they were 1600/1900/2100 did not for me.
You need that lower frequencies to ensure it to work. Then....
Also for regional based frequencies...
http://en.m.wikipedia.org/wiki/Universal_Mobile_Telecommunications_System
That link will let you know what that all really means.
Click to expand...
Click to collapse
And don't get me wrong, I'm not trying to give anyone a hard time but it's misinformation to tell anyone that a T-mobile phone can work on AT&T 3G.
And I'll say it again, I'm not an expert so if anyone can better explain then I'm all ears (eyes).
live4nyy said:
I think you are mixing up gsm and umts.
GSM = 2G/Edge
UMTS (HSPA, HSPA+, HSDPA/HSUPA, WCDMA, AWS) = 3G
Have a look here. You will see they label "3G" as "UMTS" which is HSPA/WCDMA. A little more down you can see they label their data as "HSDPA", which is download, and "HSUPA" which is upload. Further delineating the speeds they label either one as UMTS for down and Edge as up, which to me tells me they use gsm for the upload and only use UMTS for download. Either way, there is not a T-mobile phone available that can be unlocked and used on AT&T's 3G, just 2G and vice versa. As I have previously mentioned, you will need a penta-band phone for that.
And don't get me wrong, I'm not trying to give anyone a hard time but it's misinformation to tell anyone that a T-mobile phone can work on AT&T 3G.
And I'll say it again, I'm not an expert so if anyone can better explain then I'm all ears (eyes).
Click to expand...
Click to collapse
I am just merely stating that I have a motorola defy on ATT, and it worked great for a long time with great speeds before I got a motorola atrix and infuse.
Im not saying that every tmobile phone will have working talk/text, or data for that matter. I have just posted an idea, or atleast what to look for when you are cruising for phones not labeled for your carrier.
I was getting my motorola defy with the att "grand fathered internet" for 10 dollars a month and it was about 160-420KB/s down, and 80-190KB/s up. but some phones are capable of this, others arent. I have a general idea, and have played with several different carrier cellphones and used them with att and att's 3g data.
Rogers HTC Dream (x2 of them)
Telus Milestone
Tmobile Defy
Rogers Atrix
ATT Atrix (x2 of them)
ATT Infuse
Rogers and Telus actually use the same 3G bands as AT&T so as long as those are unlocked they will work. And I'm not saying an unlocked T-mobile can't work on AT&T, because they can (they both use quad-band gsm) but you can not use an unlocked T-mobile phone an AT&T 3G. That's all I'm saying.
Now, they did make an European version of the Defy that uses the 850 3G band but not the T-mobile "branded" one.
I'm going to stick to my guns on this one because I don't want to give anyone the wrong idea about interchanging AT&T and T-mobile phones and expecting 3G service. I'm fairly certain about this and unless someone can prove otherwise that's how I will think.
Ciloteille said:
I am just merely stating that I have a motorola defy on ATT, and it worked great for a long time with great speeds before I got a motorola atrix and infuse.
Im not saying that every tmobile phone will have working talk/text, or data for that matter. I have just posted an idea, or atleast what to look for when you are cruising for phones not labeled for your carrier.
I was getting my motorola defy with the att "grand fathered internet" for 10 dollars a month and it was about 160-420KB/s down, and 80-190KB/s up. but some phones are capable of this, others arent. I have a general idea, and have played with several different carrier cellphones and used them with att and att's 3g data.
Rogers HTC Dream (x2 of them)
Telus Milestone
Tmobile Defy
Rogers Atrix
ATT Atrix (x2 of them)
ATT Infuse
Click to expand...
Click to collapse
---------- Post added at 08:47 AM ---------- Previous post was at 08:36 AM ----------
Upon further research, I have found this article, where under certain circumstances, you can use an unlocked AT&T iPhone with T-mobile 3G:
http://www.gsmarena.com/tmobile_usa_running_1900mhz_3g_in_some_areas_iphones_invited-news-3537.php
Now, this shows that an AT&T phone can maybe use T-mobile 3G but not the other way around. Again, I'm always up for learning something new but I need references/proof.
Well I do get att 3g on the defy and vibrant. I am currently getting about 300ish KB/s on them and 600+KB/s on my attic, I'm just going with the facts. Those facts are that certain T-Mobile phones will work with Att, provided they have 850mhz band. That allows you in most towns (near me) to get 3g
False.
300KB/s is Edge speed, which is only 2G.
http://en.wikipedia.org/wiki/2G
http://www.phonescoop.com/glossary/term.php?gid=107
That's why you get faster speeds on the Atrix because it actually uses 3G.
Again, both AT&T and T-mobile use quad-band GSM. Which is why you can unlock a T-mobile phone and use it on AT&T, and vice versa, but it is only 2G/Edge and NOT 3G.
http://www.phonescoop.com/glossary/term.php?gid=139
http://www.phonescoop.com/glossary/term.php?gid=3
Furthermore, here are the wiki pages for AT&T and T-mobile which both inlcude frequency charts outlining the technology (2G or 3G) each one uses:
http://en.wikipedia.org/wiki/AT&T_Wireless
http://en.wikipedia.org/wiki/T-Mobile_USA
Here are the charts:
AT&T:
Frequency Protocol Class
Frequencies used on the AT&T Network
850 MHz GSM/GPRS/EDGE 2G
1900 MHz GSM/GPRS/EDGE 2G
850 MHz UMTS/HSPA 3G
1900 MHz UMTS/HSPA 3G
700 MHz LTE 4G
T-mobile:
Frequency Band Protocol
850 MHz GSM/GPRS/EDGE 2G
1900 MHz GSM/GPRS/EDGE 2G
1700 MHz UMTS (W-CDMA)/HSPA/HSPA+ 4G (formerly 3G[34])
1900 MHz UMTS (W-CDMA)/HSPA/HSPA+ 4G
I check for facts and references, I'm only saying what I find in research.
Again, when unlocked, a T-mobile phone can use AT&T 2G/Edge, not 3G
Ciloteille said:
Well I do get att 3g on the defy and vibrant. I am currently getting about 300ish KB/s on them and 600+KB/s on my attic, I'm just going with the facts. Those facts are that certain T-Mobile phones will work with Att, provided they have 850mhz band. That allows you in most towns (near me) to get 3g
Click to expand...
Click to collapse

[Q] If the GSM/UMTS modems are the same...

... In the AT&T and International versions of the Atrix... why can we not enable HSPA/UMTS on 900MHz through flashing radios or other software means?
Edit: Phone is an unlocked AT&T version on O2 UK with O2 sim.
Because the 900MHz band that the Atrix uses is part of the quad-band GSM, which is 2G/EDGE, not UMTS. Those are two different standards.
tehrules said:
... In the AT&T and International versions of the Atrix... why can we not enable HSPA/UMTS on 900MHz through flashing radios or other software means?
Click to expand...
Click to collapse
live4nyy said:
Because the 900MHz band that the Atrix uses is part of the quad-band GSM, which is 2G/EDGE, not UMTS. Those are two different standards.
Click to expand...
Click to collapse
But the international supports UMTS/WCDMA/3G/3.5/HSDPA/HSPA/HSPA+ on 900mhz going by all of the spec sheets I read.
UTMS is 3G. HSDPA is 3.5. A standard of WCDMA. HSPA is another WCDMA standard which again is a 3G Technology (3.7G?)... Either way they all come off the same 3G cell
Atrix International: GSM 850 / 900 / 1800 / 1900 | 3G Network HSDPA 850 / 900 / 1900 / 2100
Atrix AT&T: GSM 850 / 900 / 1800 / 1900 | 3G Network HSDPA 850 / 1900 / 2100
http://www.gsmarena.com/motorola_atrix-3709.php
http://www.gsmarena.com/motorola_atrix_4g-3708.php
Same hardware. Why can it not be enabled?
I don't know about the other bands but you specifically mentioned the 900MHz band so that was what I was talking about.
More than likely the carriers have locked the radios and/or hardware. It's like other carrier's world phones will not work on AT&T/T-mobile, even though they technically can support those bands.
http://www.androidcentral.com/ask-ac-what-happens-if-i-put-att-sim-card-motorola-photon-4g
http://www.androidcentral.com/will-droid-pro-work-att
tehrules said:
But the international supports UMTS/WCDMA/3G/3.5/HSDPA/HSPA/HSPA+ on 900mhz going by all of the spec sheets I read.
UTMS is 3G. HSDPA is 3.5. A standard of WCDMA. HSPA is another WCDMA standard which again is a 3G Technology (3.7G?)... Either way they all come off the same 3G cell
Atrix International: GSM 850 / 900 / 1800 / 1900 | 3G Network HSDPA 850 / 900 / 1900 / 2100
Atrix AT&T: GSM 850 / 900 / 1800 / 1900 | 3G Network HSDPA 850 / 1900 / 2100
http://www.gsmarena.com/motorola_atrix-3709.php
http://www.gsmarena.com/motorola_atrix_4g-3708.php
Same hardware. Why can it not be enabled?
Click to expand...
Click to collapse
I'll also add, there are a couple of threads on here that report that people have flashed other radios and seemed to have enabled access to 3G technologies on 900mhz.
http://forum.xda-developers.com/showpost.php?p=18820309&postcount=22.
http://forum.xda-developers.com/showpost.php?p=19879245&postcount=1
http://forum.xda-developers.com/showpost.php?p=15811026&postcount=7
http://forum.xda-developers.com/showthread.php?t=991912
live4nyy said:
I don't know about the other bands but you specifically mentioned the 900MHz band so that was what I was talking about.
More than likely the carriers have locked the radios and/or hardware. It's like other carrier's world phones will not work on AT&T/T-mobile, even though they technically can support those bands.
http://www.androidcentral.com/ask-ac-what-happens-if-i-put-att-sim-card-motorola-photon-4g
http://www.androidcentral.com/will-droid-pro-work-att
Click to expand...
Click to collapse
Thing is, its an unlocked AT&T phone on O2, and I want to take advantage of their new "Superfast 3G 900" network..
Maybe I should have made clear in the first post... woops.
Okay, the first two links do not show any proof they got it working on UMTS 900MHz band.
In this thread, the OP last updated his post (on Oct 8th) stating that he is stuck on EDGE:
Read post #1
http://forum.xda-developers.com/showthread.php?t=1313485
Again, in this thread, the OP (in post #3) says that he never got it working and the last person to comment (post #7) only says they got it working on the 2100MHz band, not 900MHz:
http://forum.xda-developers.com/showthread.php?p=19879245#post19879245
In your last two links (which come from the same thread) only one person "says" they got it working but provided no proof or means:
http://forum.xda-developers.com/showthread.php?p=15811026#post15811026
I wish I could help. I'm not saying it's impossible but as far as I know, 3G (HSPA/UMTS/WCDMA) can't be done on the 900MHz band if you're using an AT&T Atrix.
tehrules said:
I'll also add, there are a couple of threads on here that report that people have flashed other radios and seemed to have enabled access to 3G technologies on 900mhz.
http://forum.xda-developers.com/showpost.php?p=18820309&postcount=22.
http://forum.xda-developers.com/showpost.php?p=19879245&postcount=1
http://forum.xda-developers.com/showpost.php?p=15811026&postcount=7
http://forum.xda-developers.com/showthread.php?t=991912
Click to expand...
Click to collapse
live4nyy said:
Okay, the first two links do not show any proof they got it working on UMTS 900MHz band.
In this thread, the OP last updated his post (on Oct 8th) stating that he is stuck on EDGE:
Read post #1
http://forum.xda-developers.com/showthread.php?t=1313485
Again, in this thread, the OP (in post #3) says that he never got it working and the last person to comment (post #7) only says they got it working on the 2100MHz band, not 900MHz:
http://forum.xda-developers.com/showthread.php?p=19879245#post19879245
In your last two links (which come from the same thread) only one person "says" they got it working but provided no proof or means:
http://forum.xda-developers.com/showthread.php?p=15811026#post15811026
I wish I could help. I'm not saying it's impossible but as far as I know, 3G (HSPA/UMTS/WCDMA) can't be done on the 900MHz band if you're using an AT&T Atrix.
Click to expand...
Click to collapse
There doesn't seem to be any logic to why other than software as the radios taken out of all firmwares work on both versions. The only logical answer is software (if I could SBF flash a UK firmware, not CWM that would help, but there was other differences with the mainboard right?), or its the same chip just slightly modified without that band included.
I was mooching around system folders trying to find anything that could give me a clue, but to no avail.
I think it has something to do with what module is used, which is a hardware component. I know the AT&T Atrix uses the Qualcomm MDM6200 but I have no idea what other versions use.
I might be wrong though.
tehrules said:
There doesn't seem to be any logic to why other than software as the radios taken out of all firmwares work on both versions. The only logical answer is software (if I could SBF flash a UK firmware, not CWM that would help, but there was other differences with the mainboard right?), or its the same chip just slightly modified without that band included.
I was mooching around system folders trying to find anything that could give me a clue, but to no avail.
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live4nyy said:
I think it has something to do with what module is used, which is a hardware component. I know the AT&T Atrix uses the Qualcomm MDM6200 but I have no idea what other versions use.
I might be wrong though.
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Indeed, so logic would say that if we flash international radios for a different module (if they are different) would soft brick the phone or cause the phone to no get any kind of reception what so ever.
I do find the international radios and att radios (other than the stock and 1.87) make the H+ signal level not go over 1 bar.
I'm not sure about bricking the device but I know they usually have those radios locked down pretty good which is why most people need to buy unlock codes or get their carrier to unlock their phones for them. It's not very common that end users can crack them.
tehrules said:
Indeed, so logic would say that if we flash international radios for a different module (if they are different) would soft brick the phone or cause the phone to no get any kind of reception what so ever.
I do find the international radios and att radios (other than the stock and 1.87) make the H+ signal level not go over 1 bar.
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Click to collapse
live4nyy said:
I'm not sure about bricking the device but I know they usually have those radios locked down pretty good which is why most people need to buy unlock codes or get their carrier to unlock their phones for them. It's not very common that end users can crack them.
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SIM Lock and Radio locks are two completely different things. SIM locks are easy to break with a £10 note and a guy with some device, a radio lock is more difficult we dunno if its hardware or software.
Has anyone got an international/uk/europe Atrix that they'd kindly tear to pieces to see if its the same cellular modem?

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