Related
Hey,
The T9193 version of the HD2 has the radio bands 850/2100 in it for HSDPA 3G speeds, but just the 850 band is needed to support AT&T's 3G service in the US.
Would it be possible to create a new radio ROM that disables/turns-off the 2100 band for U.S. users, since this band is useless anyway, and it may help extend the battery life of our HD2 by not having to power the 2100 section of the radio, especially if it makes any transmit attempts by the phone on the 2100 band (transmitting uses a lot more power then receiving).
Any chance of this?
JohnCody said:
Hey,
The T9193 version of the HD2 has the radio bands 850/2100 in it for HSDPA 3G speeds, but just the 850 band is needed to support AT&T's 3G service in the US.
Would it be possible to create a new radio ROM that disables/turns-off the 2100 band for U.S. users, since this band is useless anyway, and it may help extend the battery life of our HD2 by not having to power the 2100 section of the radio, especially if it makes any transmit attempts by the phone on the 2100 band (transmitting uses a lot more power then receiving).
Any chance of this?
Click to expand...
Click to collapse
T-mobile is also using HSPDA/3G @ 850 also and nowhere else? I hope so because pretty much half or better of the users of these forums are T-Mobile and *not* AT&T subscribers. Jus sayin.
JohnCody said:
Hey,
The T9193 version of the HD2 has the radio bands 850/2100 in it for HSDPA 3G speeds, but just the 850 band is needed to support AT&T's 3G service in the US.
Would it be possible to create a new radio ROM that disables/turns-off the 2100 band for U.S. users, since this band is useless anyway, and it may help extend the battery life of our HD2 by not having to power the 2100 section of the radio, especially if it makes any transmit attempts by the phone on the 2100 band (transmitting uses a lot more power then receiving).
Any chance of this?
Click to expand...
Click to collapse
ROM cooks do not have such fine grain control over radio bands.... Sorry.
I don't believe the T9193's radio has the 2100 Mhz band, otherwize I'd be able to use it in my area to get 3G coverage. (We only have Edge on the 850 Mhz band here)
Hopefully someone who knows for sure can answer this.
JohnCody said:
Hey,
The T9193 version of the HD2 has the radio bands 850/2100 in it for HSDPA 3G speeds, but just the 850 band is needed to support AT&T's 3G service in the US.
Would it be possible to create a new radio ROM that disables/turns-off the 2100 band for U.S. users, since this band is useless anyway, and it may help extend the battery life of our HD2 by not having to power the 2100 section of the radio, especially if it makes any transmit attempts by the phone on the 2100 band (transmitting uses a lot more power then receiving).
Any chance of this?
Click to expand...
Click to collapse
Hi mate,
you already tried this?
In Dialer > Menu (right soft-buttom) > Baseband > Band Frequency
or
Start > Settings > Personal Settings > Phone
But 850 Mhz is just for GSM not WCDMA... it's right?
2udCrRAZdK said:
I don't believe the T9193's radio has the 2100 Mhz band, otherwize I'd be able to use it in my area to get 3G coverage. (We only have Edge on the 850 Mhz band here)
Hopefully someone who knows for sure can answer this.
Click to expand...
Click to collapse
I'm pretty sure the T9193 has the 2100 band, but 2100 is useless in the US because AT&T uses 850/1900 for 3G. The T9193 is an Australian phone made for Telstar (their cell phone company). The 3G bands used over there are 850/2100. So, because AT&T also uses the 850 band, thats why we are able to use this phone with AT&T's 3G here over in the US.
However, the 2100 band of the phone is useless in the US because is was intended to be used for 3G in australia.
The good news is that AT&T is phasing out the 1900 band for 3G and switching everything over to 850, so the HD2 will just get more and more 3G coverage as time goes on and then even the 1900 band won't be used anymore so it would be irrelevant if the HD2 has a 1900 band or a 2100 band because both would be useless.
NRGZ28 said:
ROM cooks do not have such fine grain control over radio bands.... Sorry.
Click to expand...
Click to collapse
Gotcha - thanks for the info.
2udCrRAZdK said:
I don't believe the T9193's radio has the 2100 Mhz band, otherwize I'd be able to use it in my area to get 3G coverage. (We only have Edge on the 850 Mhz band here)
Hopefully someone who knows for sure can answer this.
Click to expand...
Click to collapse
Well, you neglected to say where "here" is
The best available combination for world-wide 3G access is 850/2100 Mhz. This is because:
1) 850Mhz is used in Canada, US, S Americas, Aus, S Africa for 3G broadcasting in regional areas (and in some city areas)
2) 2100Mhz is used in Asia, EU, Aus cities for 3G broadcasting
This is due to the actual physics of velocity = frequency x wavelength
Some telcos use 1900Mhz in the cities, but also broadcast in 850Mhz
Other telcos use 900Mhz in the regional areas, but also broadcast in 2100Mhz in the cities
ATT in the US uses 850mhz in the regionals and 1900Mhz in the cities. This ensures that "their" PDA's cannot use other SIM's - I have no idea why the dumbed-down US market meekly accepts that
The perfect combo is tri-frequency hardware, such as PDA manufacturers used to provide but do not any more (no excuses, it's just straight cost-cutting and sleight-of-hand marketing BS to suit the greedy telcos)
The HD2 released in Aus through Telstra is hardware-filtered for 2100/850 Mhz, the best available combo for world-wide use (not perfect, of course)
The HD2 released in EU/Asia is 2100/900 Mhz. This will access 3G in most cities world-wide (note that China uses 2100/850) but has limited coverage in regional areas - yes, I know there many 900 Mhz deployments but these are very limited geographically
The HD2 released in the US is 1900/850 Mhz. This is very limited for world-wide cities and excludes 3G coverage for those countries that use 2100/900 Mhz
None of this has any relation to GSM coverage, so please do not confuse them
Is the hardware actually different?
I live in NZ and unfortunately bought a T-Mobile unit which is set up for 1700/2100mHz which means that when in the cities I get full broadband, but in the regions I only get dial up speeds through GSM.
My question is does anyone know if the hardware could actually use the 900mhz broadband - or is it a pipe dream on my part that hopefully someone will release a ROM to access some previously hidden hardware?
I do recall with my Touch that there was a GPS built into the hardware that no-one was aware of for a year or two!
mikey555 said:
I live in NZ and unfortunately bought a T-Mobile unit which is set up for 1700/2100mHz which means that when in the cities I get full broadband, but in the regions I only get dial up speeds through GSM.
My question is does anyone know if the hardware could actually use the 900mhz broadband - or is it a pipe dream on my part that hopefully someone will release a ROM to access some previously hidden hardware?
I do recall with my Touch that there was a GPS built into the hardware that no-one was aware of for a year or two!
Click to expand...
Click to collapse
The hardware is definitely different...
JohnCody said:
The T9193 is an Australian phone made for Telstar (their cell phone company).
Click to expand...
Click to collapse
The Phone company in Australia is Telstra (just in case you are goggling it and wonder why you cant find it)
t9193 vodafone
i can use 900/2100 bands on t9193
i use Vodafone australia on Telstra hd2 with quick 3g data everywhere
what are the hardware differences?????
am i alone?
is there anyone else in this community that has
T9193 + Vodafone AUS + Custom ROM/Radio
Everyone keeps pasting crap about incompatibility but it seems to be fine
I've seen this blog.
http://blog.clove.co.uk/2011/04/12/samsung-galaxy-s-ii-umts-frequencies/
However, with our experience in the industry we have seen that almost every device launched in recent years within Europe has been ‘optimised’, with the American 850/1900 range locked down, leaving only 900/2100 for the rest of the world. As we are based in the UK it is for this reason we have taken the tentative step of advertising only these frequencies.
Click to expand...
Click to collapse
yeah, UK clove store said EU galaxy S2 doesn't support US 850/1900
network. (They said that may be US 850/1900 UMTS frequencies are locked.)
But, I find google news.
http://www.mydaily-gadget.com/news/5718-att-getting-samsung-galaxy-s2-gt-i9100-fcc-says-i-do
Speaking about release dates we do not have a specific one for the GT-i9100 in the USA but we can confirm the FFC has authorized the use of this particular smart phone on the 850MHz and 1900MHz GSM frequencies which means the first carrier to offer the Samsung Galaxy S II might be AT&T. These two frequencies account for the AT&T 3G network but they also match some Canada operator’s frequencies so there is a big chance the Galaxy S II will land there too in the near future.
Click to expand...
Click to collapse
Follow this news, EU galaxy S2 using US GSM 850/1900 networks.
Who is say that TRUE?
i'm very confused.
Quad band GSM 850/900/1800/1900
Source: http://www.samsung.com/global/microsite/galaxys2/html/specification.html
It should work.
apwhitelaw said:
Quad band GSM 850/900/1800/1900
Source: http://www.samsung.com/global/microsite/galaxys2/html/specification.html
It should work.
Click to expand...
Click to collapse
So, only using ATT GSM network?
ATT UMTS network can't use?
Pulverizer said:
I've seen this blog.
http://blog.clove.co.uk/2011/04/12/samsung-galaxy-s-ii-umts-frequencies/
yeah, UK clove store said EU galaxy S2 doesn't support US 850/1900
network. (They said that may be US 850/1900 UMTS frequencies are locked.)
But, I find google news.
http://www.mydaily-gadget.com/news/5718-att-getting-samsung-galaxy-s2-gt-i9100-fcc-says-i-do
Follow this news, EU galaxy S2 using US GSM 850/1900 networks.
Who is say that TRUE?
i'm very confused.
Click to expand...
Click to collapse
That first link (that I provided earlier tonight I think) - read it to the end please, Clove has all the info on that page, just finish reading it. sorry for the tone , but I think you did not pay enough attention - there are comments to that blog post that say clove confirmed with the manufacturer and local distributor that all 4 bands are present.
I'm confused here
I have SGSII ordered from Clove. I plan to use it with ATT sim card. Have I made a mistake? Will I be able to use it? Do I need to cancel?
I hope it works well with AT&T since I intend to get this phone.
My current (imported) GT-i9000 did not properly support AT&T and has very poor call quality and call drop issues.
Sent from my Xoom using XDA Premium App
Although Clove originally said they doubted it would support 850/1900 3G+, they did later confirm their stock would be quad-band 3G. So no need to worry about support for NAM 3G.
Once someone get's the GS2 in USA on ATT, can you confirm that it indeed works on Edge AND 3G?
kurtkbee said:
I hope it works well with AT&T since I intend to get this phone.
My current (imported) GT-i9000 did not properly support AT&T and has very poor call quality and call drop issues.
Sent from my Xoom using XDA Premium App
Click to expand...
Click to collapse
That's because the i9000 is only tri-band UMTS and only supports AT&T's 1900 frequency. When it gets to an area where the 1900 H/3G signal is weak, it can't switch over to the 850 UMTS simply because its hardware doesn't support it. So, then the phone call drops. You'll notice if you switch the i9000 to 2G/Edge, you'll never get a dropped call... because it's quad band GSM.
Also, ever notice you never get dropped calls when stationary and on H/3G? That's because with a solid 1900 UMTS signal, the i9000 will never search for the unsupported 850 band.
(And yes, I have confirmed all of this as I also own an i9000.)
i9100 supports quad-band UMTS with 850/1900 H/3G, so you will not have the frequent dropped calls anymore.
Here are the frequencies for AT&T: http://en.wikipedia.org/wiki/AT&T_Mobility#Radio_Frequency_Summary
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
So, the i9100 International will do almost all. Except LTE.
pepemosca said:
Here are the frequencies for AT&T: http://en.wikipedia.org/wiki/AT&T_Mobility#Radio_Frequency_Summary
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
So, the i9100 International will do almost all. Except LTE.
Click to expand...
Click to collapse
Thanks for your information.
Hello All,
I am on tmobile and had samsung galaxy s before i got SGS2 from at&t (my wife upgraded). i unlocked/rooted the phone after reading through the posts and it worked like a charm!
My concern right now is that I am always on edge data network with tmobile. can anyone help me on this. Tethering is also not much of use when i am on the slowest connection. Please help.
Can't do much about it since AT&T version doesn't support the 3g/4g band for T-mobile.
At&t gs2 doesn't support t-mobile frequency for 3 g.
Sent from my SAMSUNG-SGH-I777 using xda premium
I thought this phone has all the bands to support all networks.
parags1982 said:
I thought this phone has all the bands to support all networks.
Click to expand...
Click to collapse
No only AT&T.
My guess is that international version supports all the bands not the carrier branded sgII
^Even international version doesn't support T-Mobile 3g/4g (HSPA+) network.. Not many phones support their network. Or maybe it will.. but not everywhere
AT&T SGSII
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 1900 / 2100
T-Mobile SGSII
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 1700 / 2100
International SGSII
2G Network GSM 850 / 900 / 1800 / 1900
3G Network HSDPA 850 / 900 / 1900 / 2100
I am following another post that lets says HOW TO: "Enable 850Mhz 3G Network Frequency on your Samsung i9000 Galaxy S''. will update how it goes... fingers crossed..
parags1982 said:
I am following another post that lets says HOW TO: "Enable 850Mhz 3G Network Frequency on your Samsung i9000 Galaxy S''. will update how it goes... fingers crossed..
Click to expand...
Click to collapse
No luck. i read somewhere that i may need to install another modem?
Is there anyone out there with the same issue as mine?
any experts out there?
parags1982 said:
I thought this phone has all the bands to support all networks.
Click to expand...
Click to collapse
The AWS (1700) bands are supported only by a handful of carriers. It doesn't exist at all in Europe and Asia. There's little reason for manufacturers to include it on their global phones as so few people use it. It's the reason the T-Mobile SGS2 has a Qualcomm chip instead of Exynos like the rest of them. After the merger, it won't even exist in the U.S. any longer as AT&T plans on using it (1700) for LTE. If you want versatility and the ability to use unlocked phones, change to AT&T.
parags1982 said:
I am following another post that lets says HOW TO: "Enable 850Mhz 3G Network Frequency on your Samsung i9000 Galaxy S''. will update how it goes... fingers crossed..
Click to expand...
Click to collapse
In order to get T-mo 3G, a phone must support HSPA on 1700MHz AWS band, not 850MHz. As such, only phones from T-Mo or some Candadian carrier support 1700 band. Rest of the world use 900/2100 for 3G and AT&T uses 850/1900 for 3G/4G.
You are never going to get 3G on T-Mo on any phones from AT&T. Period. Give it up.
foxbat121 said:
In order to get T-mo 3G, a phone must support HSPA on 1700MHz AWS band, not 850MHz. As such, only phones from T-Mo or some Candadian carrier support 1700 band. Rest of the world use 900/2100 for 3G and AT&T uses 850/1900 for 3G/4G.
You are never going to get 3G on T-Mo on any phones from AT&T. Period. Give it up.
Click to expand...
Click to collapse
thanks. i give up
TMobile uses 1700 up, 2100 down. If the handset doesn't support 1700, you are out of luck.
Correct. Many phones support the 2100 MHz International band.
T-Mobile's network is weird though, and uses both 1700 and 2100 MHz at the same time.
My guess is that UMTS1700 support and not 42 Mbps HSPA+ is why the T-Mobile variant of the GS2 is such an oddball phone.
NO AT&T phone and only a small handful of international phones support T-Mobile's 1700 MHz band.
Similarly, only one or two T-Mobile phones (The Vibrant being one of them) support any of AT&T's 3G bands, but none support all of AT&T's 3G bands to my knowledge.
The interesting thing about this entire thing is that if you go into the modem band selection it lists 5 different wcdma bands including the aws 1700. I enabled those bands and tried using a tmo sim but alas it still only worked on edge. It may have just been there cosmetically rather then actually supporting aws bands. use dialer code *#2263# to access the band selection menu. Maybe there is a way to get it to work.
pb1866 said:
The interesting thing about this entire thing is that if you go into the modem band selection it lists 5 different wcdma bands including the aws 1700. I enabled those bands and tried using a tmo sim but alas it still only worked on edge. It may have just been there cosmetically rather then actually supporting aws bands. use dialer code *#2263# to access the band selection menu. Maybe there is a way to get it to work.
Click to expand...
Click to collapse
I agree with you and have tried exactly what you did (along with other bands) but still not working.
pb1866 said:
The interesting thing about this entire thing is that if you go into the modem band selection it lists 5 different wcdma bands including the aws 1700. I enabled those bands and tried using a tmo sim but alas it still only worked on edge. It may have just been there cosmetically rather then actually supporting aws bands. use dialer code *#2263# to access the band selection menu. Maybe there is a way to get it to work.
Click to expand...
Click to collapse
Typically, the s/w supports multiple versions of h/w. Just because an option's in the menu doesn't mean the h/w's available to support it. The same thing happened with the T-Mobile G2X. It was supposed to be quad-band, the option was in the ROM, but the radio wasn't there to support all the bands.
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.
... 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.
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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?