I have an Australian released unlocked touch pro, and made a huge mistake- my network Telstra nextg is on 850 UMTS, and the released model is designed only to support 900-2100 UMTS. Does anyone know if i upgrade the radio as posted to quad band via flashing the rom if it will then allow my phone to access the 850 UMTS range or has the Ausie touch Pro been produced differently and may have a different antena and or chipset, which wont allow me to change it? If this is the case my phone is RS, i can still get edge though. Help 20times over.:
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I just bought a singapore-configured omnia and i can only get it to connect to edge here despite being in a known 3g network... In the connection manager i only have options for "cellular line" and "cellular line (gprs)" (as well as haynes and bluetooth etc), but no "cellular line (gprs, 3g)" as I do on my other phone...
Any suggestions as to how i might get it to recognize the 3g in my area? (rogers/at&t).
Thanks!
if i'm not mistaken i900 has 3G but only in the 2100 band, maybe you can check with your operator what 3G band they are using...
I believe rogers runs their 3g on 1900 and there is no option for 2100 on the phone, only 850/1900 and 900/1800...
tg989 said:
I believe rogers runs their 3g on 1900 and there is no option for 2100 on the phone, only 850/1900 and 900/1800...
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what you are saying is the GSM band, what I meant was the UMTS band which is 2100 for the i780
I have no option for UMTS in the phone ;\ I believe rogers runs on 2100 also but i'd have to check my other phone... is there somewhere where 3g/umts could be disabled on the phone? The specs say that it supports tri-band and umts.
edit: just checked the rogers phone, under settings -> phone i have a seperate tab for "band" wherein i can choose the gms/umts band "gsm(900+1800)+umts(2100)" etc but on the omnia there is nothing of the sort.
is it possible that the korean version of the phone somehow has umts disabled?
tg989 said:
I have no option for UMTS in the phone ;\ I believe rogers runs on 2100 also but i'd have to check my other phone... is there somewhere where 3g/umts could be disabled on the phone? The specs say that it supports tri-band and umts.
edit: just checked the rogers phone, under settings -> phone i have a seperate tab for "band" wherein i can choose the gms/umts band "gsm(900+1800)+umts(2100)" etc but on the omnia there is nothing of the sort.
is it possible that the korean version of the phone somehow has umts disabled?
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try under the MORE tab in phone settings, frequency in BAND SELECTION should be set to automatic.
This is a big mystery to which there is no real answer.
I have a I900 as well, but I do not have 3G/WCDMA in the US via AT&T which uses 850/1900 bands (which I believe is what Rogers and Fido use).
Here are some interesting bits:
- The I907 is a North American version that supports 3G on 850 and 1900.
- No one to my knowledge has seen any different hardware parts related to the Cell in the I907 vs the I900. The radio in both supports 8 of the UMTS bands that have been proposed (only 4 are in common use, and one of those is only in Japan). The cell antenae of the I900 are designed for optimal gain in the 850/1900 bands.
The Radio is idential to that of the Diamond, Touch Pro, G1, Kaiser, Touch, Touch HD and anything else using the 7201A or 7200 chipset. The I900 and I907 do not use this chipset, but it uses the same radio hardware.
No one was able to get the EU Diamond to use the 850/1900 GSM band, and in fact the US Diamond has the same radio Firmware as the EU diamond.
I was confident that if anyone could figure out how to make this work, it would be people at XDA on an HTC device (caveat - there are a lot of europeans here who don't care about 3G in north America, so I may have been wrong there)
Where does it say tri band UMTS on your phone?
I just upped the UK t-mobile rom into the phone and surprise, the profiles for singapore internet are still in the phone... HOW is this possible on a full rom (pda + phone) flash???
anyways, looks like the umts spectrums we use are locked in the firmware for the phone, despite the radio being able to use it ;\
http://www.gsmarena.com/samsung_omnia_turns_i907_with_us_umts_bands_fcc_approves_-news-584.php
maybe this quote will help enlighten you:
Apo11on said:
Hi All,
Currently released version of Samsung Omnia i900 does not support UMTS 850/1900, which are north american 3G frequencies, according to official Samsung documentation, as well as FCC approval docs. However it has been recently established the radio chip does support those frequencies, and they are locked in the firmware only. Here is the evidence to support this claim:
This is the official FCC documentation for i900 certification:
https://fjallfoss.fcc.gov/oetcf/eas...me=N&application_id=476604&fcc_id='A3LSGHI900
On the page 4 of the "Internal Photos" document you can clearly identify the radio chip - it's Qualcomm RTR6285 and according to Qualcomm:
"Support for Eight UMTS Bands, Four EGPRS Bands, Triple-Band Receive Diversity and GPS Integrated into Power-Optimized RTR6285 Device": http://www.qualcomm.com/news/releases/2006/060213_worlds_first_single.html
So, it's only as matter of unlocking those frequencies in the current firmware. Samsung made our job a little easier, by recently making a public release of new ROM with updated firmware, so we won't have to dump it ourselves: http://www.samsungmobile.com/promotion/omnia/sg/sub02_xp.jsp#
I have limited free time and limited experience with reversing PDA firmware, to be able to achieve this by myself - please help.
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There are many Roms Available on Modaco
www.
It seems like there are at least four places in which firmware lives:
- "Phone" (usually called Radio)
- "PDA" (the rest of the ROM)
- "CSC" (seems to be for branding. I.e. TMobile has a special .csc file as compared to stock ROMS with similar firmware)
- GSM settings, accessible through dialing obscure number on the Phone. Search Modaco for a list, people seem to find new ones every day. Some of these numbers just effect the ROM settings, but some seems a little more powerful.
- In some of the recent Roms there is a Band Tab in the phone settings, but it only lists "Auto", "850/1900", "900/1800" and "WCDMA". WCDMA is 2100 in the rom I have installed (Signapore PDA with an "Open Market" Phone (XXHI2) )
mine, with the t-mobile rom, only shows 800/1900 as an option in band selection ;\
theo80 said:
try under the MORE tab in phone settings, frequency in BAND SELECTION should be set to automatic.
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Video tutorial on how to access the band selection menu and enable/disable 3G on your Samsung omnia.
http://www.sparus-software.com/Devi...yer-Addict/Disable-3G-on-Samsung-Omnia-a.html
I am having a question about the Radio.
I saw the radio thread. There are a quad bands radio. Now, My phone doesn't have UMTS 850 (no 3G support at North America no 3G Icon on the top of status bar). If I flash the quad bands radio, should I get the UMTS 850 3G support?
The short answer is no. The Euro/Asian Diamonds that came out were tri-band gsm and Euro/Asia 3g support. Later an update was released to make them quad band gsm. This was possible because the actual hardware was quad band, it was just locked down. The 3g chip is not triband, it is different in the different diamond models (NAM vs euro/Asian). So while you can make any diamond quad band gsm (if it wasn't to start with), you can not expand the 3g freq because the chip is not in your phone.
Thanks.. I see. Hardware !!!!
Looking at the specs on PDADB, says Tilt2 will be tri-band 3G?
Thought the TP2 only came in dual-band?
I hope that is true but we wont know till it is released
If they do the same thing they did with the original Touch Pro, the U.S. version includes the 2100MHz band. Most previous HTC 3G phones before the Diamond came with 850/1900/2100MHz, even the european ones, but that was before the 900MHz band was introduced. For the Touch Pro they had European 900/2100MHz and the U.S. version with 850/1900/2100MHz.
Hello I live in New Zealand and we have a network here called Telecom XT which uses 3G freq: 850 & 2100 mhz.
Unfortunately all Motorola Defy sold here have their freq specified as: 3G Network: HSDPA 900 / 2100
I see in the development section there is a way to flash files to restore 3G coverage and one of the files has the 850 & 2100mhz that our Telecom XT network uses. Does this mean I can flash this file to enable those frequencies on this phone or does it mean that the Chinese versions of Defy have a different chip that supports the different frequency?
Hey,
Unless the Defy has a tri band WCDMA chip (which im pretty sure it doesn't) then you can't simply flash new radio firmware/RIL to enable frequencies.
If you want an XT compatible desire, your best bet is something from T-Mobile or more ideally Telstra Australia's NextG network, which is the same as XT. Mobicity for example sells NextG handsets which will work perfectly on XT.
If you have the 900mhz Defy i believe you are limited to Vodafone/2Degrees. Flashing these Radio/RIL fixes i think were because those with 850mhz handsets with issues running radios designed for 900mhz.
Just to confirm, Defy hardware can only do certain pairs of frequencies (e.g. as say mentioned on gsmarena.com) irrespective of what ROM is put on it ?
Is there anyway to find out (from model/serial number or other way) what hardware one has ? (for 3G frequency)
I'm pretty sure about mine, though I bought this Defy 2nd-hand and flashed it, so just wanted to be sure. (I flashed it with 900/2100 MHz ROM and it seems to work fine on T-Mobile 3G in London, UK. But wonder if there is a way to check - perhaps for another unit....)
OK...the Desire Z only supports 900 and 2100 MHz which is European and Asian 3G bands. Is there any way that it can be made to operate on any North American 3G bands (like 850, 1700/2100, or 1900) or the issue is entirely hardware related, in which case nothing can be done. I should note that the phone has already been upgraded to 2.3.3 so the rooting options are rather limited.
Any contribution will be highly appreciated!!!
Its hardware limited to the bands you have. My understanding (correct me if I'm wrong) is that with that device (if it is unlocked) you will be able to use a T-mobile SIM to get 3G in the US. I'm not 100% sure with this though, as I don't think the DZ has 1700mhz which is needed for T-mobile.
You don't have the correct bands for AT&T 3G. There is a Canadian version of the DZ that will work on AT&T in the US on 850/1900, however.
The device is completely unlocked and unbranded but its specifications clearly state that its 3G frequencies are 900 and 2100.T-Mobile's 3G is 1700/2100 (together) and it's different from the European 2100. Unless the North American bands can be activated via a secret menu, or by flashing a different radio (impossible with 2.3.4), the phone, as is, can't connect to American 3G networks...only GSM 850 and 1900.
So, a miraculous secret menu appears to be my only hope, which, of course, is impossible to implement if the hardware doesn't support it!
Thanks for your concern!
Well, with you phone, you can use only half of tmo's 3g service since they reserve one band for uploads and the other band for downloads. So technically you kinda get 3g, but just 1 way.
Sent from my Desire Z via XDA App
I'm afraid that i can't do that either because the TMO's 2100 3G frequency spectrum is not the same as the European one!
I think I'll exchange it with a friend's European Nexus S which is tri-band 3G and, besides 900 and 2100, it supports TMO's 1700/2100 band! It is an excellent phone but I slightly prefer the metal and the weight of the Desire Z despite the fact that I do not particularly care about the physical keyboard!
Thanks anyway guys!
haki.gr said:
I'm afraid that i can't do that either because the TMO's 2100 3G frequency spectrum is not the same as the European one!
I think I'll exchange it with a friend's European Nexus S which is tri-band 3G and, besides 900 and 2100, it supports TMO's 1700/2100 band! It is an excellent phone but I slightly prefer the metal and the weight of the Desire Z despite the fact that I do not particularly care about the physical keyboard!
Thanks anyway guys!
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yea. i think mputtr brought up the correct point. The way T-mo uses 3G is 1700 and 2100 separately for down/up, so like you said its different than the Euro 2100 spectrum.
Sorry it didn't work out.