Is the carrier frequency reprogramable by firmware? - MDA, XDA, 1010 General

Dear hackers,
(I am new to this site, hello everybody)
a) Foreword: :arrow: I have a Wallaby bougth in the USA as SIEMENS SX56 (OEM PW10B1) and locked by AT&T. As USA GSM uses 1900MHz and now i am in Brazil which uses 1800MHz datacarrier frequency.
b) :?: Therefore the question: Is it worth trying to unlock the phone to use it here? I mean, the phone may be unlocked but then, is the carrier frequency reprogramable by firmware or simply configurable by software? :?:
Thank you in advance for your reply :wink: .
Bye,
Juan Carlos :idea:.

Look at the rear of your xda, if it is 10B1 it is 900/1900 if it is 10A1 it is 900/1800. This cannot altered as far as I know.

Related

O2 xda tri-band phone

Hi there!
I live in France and I go often to California. I always had a spare GSM phone tri-band for the US and Canada.
Last March, I bought an O2 xda in Australia, in a Telstra shop, thinking it was a bi-band phone. Back in Paris, I found this site and learned how to access tho the GSM menu (I had found myself how to access to the Wallaby bootloader 5.17, but I didn't press any other key after the message "GSM OK").
I've just come back from San Diego and while I was there I changed the band to "1900"... and the xda worked perfect!!! Back in Paris, I've switched back to 900/1800 and I'm using again the European networks
Thank you!
What?
We've always believed the phone had physically different hardware for 900/1800 and 900/1900 operation, and I seem to remember seeing negative test results.
The O2 XDA you bought for sure is 900/1800 and not 900/1900 ? (remember: it would work in Paris if your provider is on 900).
Let's all follow up on this one carefully. For now, let us not imediately assume the units are tri-band.
I have heard that O2 are likely to release a tri-band version with 64Mb internal RAM.
This will be called the XDA 64i and is likely to sport Bluetooth also.
Any further news on this appreciated.
Hey ArtZ
Let us know if your carrier is a 1800 Mhz Carrier.
If the XDA is triband that would be absolutly awesome.
:lol:
Hey guys
Now this is VERY IMPORTANT NEWS
Can we have more info and more confirmation (more experience in this ?)
My carrier, SFR is a 900Mhz carrier. In fact SFR (Vodafone) and Orange (France Telecom) use the 900 Mhz but in some places to avoid network congestion they use also 1800 Mhz band. BOUYGTEL (Bouygues Telecom) uses only the 1800 Mhz band.
I've just made a test. I have configured the phone as 1800 Mhz only. I couldn't find my carrier SFR. Then I tried to select manually the network and I only could see BOUYGTEL (1800 Mhz). I have tried in the past my XDA with a BOUYGTEL car also and it works fine. So my phone is configured for 900/1800 carriers.
After this, I changed network again (1900 Mhz) in Wallaby bootloader. Then I cannot see any carrier. In California I was connected to Pacific Bell using the 1900 setting.
As I told you before, I bought my xda in Australia last March with the latest firmware. It's a 64 Mb internal RAM
I'll be back in California (on vacation) on June 30th for 10 days. If you wanna make tests...
Hi ArtZ
This sounds great.
Sorry to bother you, but can you tell us please which firmware U are using for the PDA and for the phone?
Thanx! :idea:
PS: for me it will be end of the year, so this is a long time...
I forgot to tell you the versions installed (I haven't updated them yet) are:
RUU 3.14.17
RSU 4.17
I don't think my xda is the XDA 64i. It has no Bluetooth. I think the 64Mb version just came out in Australia when I was there in March. There're are maybe harware changes with the 32Mb version and the 64Mb is a tri-band.
Hope that helps.
It's me again, sorry to bother you.
I run all the tests from the Wallaby bootloader. The version I have is GPRS 4
It will be interesting to check if you have new versions over there.
I found out that the xda has just arrived in France by Bouygues. I will try to get more information about it but I think it's the same model I have. Bouygues doesn't say if the HTC iPDA is a bi-band or a tri-band telephone
http://boutique.bouyguestelecom.fr/laboutique/site_1/CAT_005.jsp?Part=1&logicalNamePrec=CAT_001#
Regards
Hi,
My version is GPRS 4.1332s54 What ever this means? :shock:
how to change the frequency?
HI Artz,
Great news you have given. Can you please clarify step by step how you changed the network frequency of the phone?
Thanks
Blurr
DANGER
Look on the back of the device, the part number will tell you if it is a 1900 unit or not.
PW10A1 is the 900/1800
PW10B1 is the 900/1900
The Bootloader is identical. CE is different as the option to chose the 1900 band (which you have to do manually) is only in 1900 CE versions.
The hardware is different between the two versions. The radio circuits and filters are different. You "could" switch the radio of a 1800 unit to try and do 1900, but your coverage would be extreemly poor as the 1800 filter is actually filtering out half of the 1900 band.
Your 1900 operator will NOT like you.
superblurr, lazy boy! :roll:
All information is here, in xda-developers.com. Just take a look at this page
http://www.xda-developers.com/bootloader/
It will be nice if someone from the States comes to Europe and try his xda here. And if you go to the States (or Canada) take your xda with you. It's the only way to find out if there're different models
My version is:
GPRS 4.1332s54 (as silversurfer)
RUU: 3.14.17
RSU: 4.17
Model: PW10A1
Anybody got a spare XDA they want to send to the US for testing for a few days? It usually only costs me about $12 to ship something that size to Europe, and takes about 5 days. I would imagine it to be similar the other way.
this sounds great! i own a 900/1900 from t-mobile. is it then possible to change my 1900 into a 1800 mhz? because i get sometimes no network signal. i live in europe, and need the 900/1800...
Can anyone explain please?
I bought a US T-Mobile (PW10B1) and did a SER1.2 flash, it went flawless....Thanks to the xda-developer team and Jef, you guys are the best!! The only bug I notice so far is Phonext which is not working at all. I am using the phone in Singapore using the 900/1800 band and it works perfectly. I've been reading about TMO2003 in this forum, my question is does this upgrade come with bandswitch.exe, this feature is very essential to me as I travel very extensively btw Asia, Europe and the US. By the way does anybody know what is a .rar and .nbf file? :?:
.rar files are compressed files like zip.
download a freeware prog called winrar and you'll be all set.
The UK will see the new XDA from O2 by the end of this year.
It's now known as the XDA II
it will be 64Mb, tri-band and bluetooth plus a built in camera and enhancements to the wi-fi link etc.
Thanks Rustek. How about .nbf flies? Is TMO2003 for PPC2003 only? what's the diff. compared to SER1.2?

T-Mobile PPC-PE on Orange UK

Please tell me there is a way to get the T-Mobile version of the XDA (from Canada) to work on the Orange network in the UK! :roll: :?:
I have just bought one for my Dad (I already have an O2 XDA on Orange) and I've gone into the bootloader and selected radio 900/1800 which i believe is what orange runs on, but when I put my Sim into the device it just says no service
It's currently got RS 6.24.00 on the device, do I need to change this to 4.21.00 ?
If so how ? As I can't see the option in the bootloader to load/backup rom's like on mine
Please help
Cheers
Neil
Anyone ?
try to do a search i'm pretty sure that the gsm settings cant just be changed in software, and if thats the case then a US (900/1900) can never be used in EU (900/1800)
xda2 dont have that issues because it's triband (900/1800/1900)
Have tried searching already... couldn't find anything of relevance
There is the option in the bootloader that includes 1800, can't remember what the other exact options were as I don't have the phone with me atm. But I'm pretty sure the one I selected was 900/1800, so I hope (and pray) that this phone supports 1800.
Do I also need to select the band through WM2003 aswell as doing it in the bootloader?
Can someone confirm what band the UK networks Orange and Vodafone use, just to make sure I'm trying it with the right ones...
Any help much appreciated, as I'm getting desperate on this one, as its a crimbo present for my dad..
Cheers :wink:
Neil
EU as in all cellphone companies use 900/1800
it's the EU std like PAL is
US use 900/1900 and i dont think anybody else use that
did a quick search in the forum and came across this
http://xda-developers.com/phpBB/viewtopic.php?t=3064&highlight=900+1800
S**t S**t S**t thats not good
I've just been doing some searching on google and found that Cellnet and Vodafone use 900 & 1800, and Orange and One2One use 1800.
Does this mean I will be able to use Voda or Cellnet as they use 900.. and the phone is on 900 / 1900 ????
Cheers
Probably, just shove a voda or O2 card in and see what happens.
Thanks to everyone who helped, my Dad has now been given his PPC and it works on Voda

about 900/1800 900/1900 mhz

I would like to know how many differences there are between this two kind of dual band.
i've bought a T-mobile from USA (i'm still waiting for it so i don't have it now) and i saw that it is a 900/1900. I'm in italy, so i would like to know if i'll use only 900 or 1900 too (i think in italy 1800 is used).
i think i'll have to unlock it, the vendor told me it is a pocket pc 2003, do XDAunlock, work on it?
(i'm sorry for the last off topic question...i post here to not make too many post around the forum)
lyka said:
I would like to know how many differences there are between this two kind of dual band.
i've bought a T-mobile from USA (i'm still waiting for it so i don't have it now) and i saw that it is a 900/1900. I'm in italy, so i would like to know if i'll use only 900 or 1900 too (i think in italy 1800 is used).
i think i'll have to unlock it, the vendor told me it is a pocket pc 2003, do XDAunlock, work on it?
(i'm sorry for the last off topic question...i post here to not make too many post around the forum)
Click to expand...
Click to collapse
I'm sorry to tell you since your network works on 1800 Mhz your new T-mobile PW10B1 wont work on this frequency it's made for 900/1900 Mhz if you unlocked it or not it's not gona work, you need the PW10A1 devices they work on 900/1800 Mhz.
but there are cellphone companies in eu who use 900 maybe there are some in your country
if not well thats too bad
oh....no..... :shock:
is there anithing i can do? radio update??? something like this!
Your special edition ROM can help me?
from what i've been able to understand about the 900/1900 then it's a hardware limit the GSM part of the xda1 will have to be physically removed which would most likely be way more expensive then getting a new device
of cause i could be wrong
The XDA1 is available in two flavours (from what I read):
USA: 900/1900 bands
EU: 900/1800 bands
Since both flavours support the 900 band, you should be able to use it in Europ on one of the 'old' networks.
In Holland both KPN and Vodafone have nationwide coverage on 900MHz.
Since TIM is and 'old' company too (Telecom Italia isnt it?) I guess theyre on 900 too. To be sure: check the websites of the Italian mobile operators. Be aware that reception in some areas might be less than if you could use both 900 and 1800 bands as more and more operators are extending their networks on 1800 only (because of lack of free 900 band frequencies). I noticed this a few years back in France where in rural areas there was no coverage with a 900 phone and full reception with a 900/1800 phone (same network).
Reading the forum i've read that is possible to chose band 900/1800 and 900/1900 by bootloader and pressing calendar...can this be true for some model?
p.s. Of course TIM uses 900...i wonder if it will ever use 1900 one day
i think UTMS or some other replacement will take over before us and eu start to use the std's of eachother
just another question, i found information about special edition rom. It says that with bandswitch.exe some devices may work with other "not natural" band. So i'll try when my XDA will be shipped.
TIM wil NEVER use 1900, at least not in Europe. The 1900 band is not available for telecoms in Europe (just like the 1800 band is not available in USA)
I've got T-Mobile from US working in Russia on 800/1800 through ROM upgrade. What it did - it removed SIM Lock and turned the device into 3-band. Works perfect.
Rgds,
Cimmerian
www.briantracy.ru
i haver never heard about anybody being able to make a dualband into a triband using just software the filters and mixers in the hardware part og the gsm are different
I have never heard about that either. As far as I know frequencies are hardware based. Otherwise we could flash our XDA's to anything we wanted.
I have researched this for weeks and weeks since I need my XDA I to work on the 850Mhz network in the US quite badly.
Please post exactly how you did it
1800/1900
I got the same problem you do but reverse , I'm in the U.S and bought the phone from Europe ( qtek 1010 ) my phone will not work in the U.S because the network here is 1900 and in europe 1800. If you want I can trade with you if you have the same phone. I got all the package in a box.
My email is [email protected]
U can reach me on this email if you wish to exchange.
Lyka
There are 3 major networks in Italy that have 900 mhz networks.
They are:
Telecom Italia Mobile (TIM)
GSM 900/1800
Vodafone Omnitel N.V.
GSM 900/1800
Wind Telecomunicazioni SpA
GSM 900/1800
If you are within any of their networks you should have service with your
current Wallaby. (XDAI). You should be able to insert your sim card and go.
Some ROMS auto select the available network, others do not. There is also a program that you can cook into a ROM that give you a software selctable band switch.
I hope this helps?
Joe
Just to clarify my last post:
It has been discussed on this forum, for a few years, that you cannot
change a 900/1900 phone to 900/1800 using software.
However since your phone does operate on 900 mhz and there are
900 mhz throughout Italy, including Sardinia, you should have no problem using your current phone. In fact I have used my USA 900/1900) XDAI in Italy.
Let us know how you make out.
Joe
900/1900 T-Mobile -- Swap for an 900/1800 XDA ?
Straight swap...I made a mistake and bought a T-Mobile from the US thinking it would work in NZ....it won't and everyone on the forums agrees....so only option is to replace with a European one...
If anyone is interested, post a reply and we can set something up.
Cheers, Hamish
BandSwitching
I live in Jamaica, we have to GSM networks, 850/1900 & 900/1800 my XDA1 works well on both networks... although signal strength from the 900/1800 is stronger it makes no big difference... I believe the shorter band is essential in buildings etc. so wait till you get the phone and give it a try.
I tried the Band Switching application in the Special Edition ROM, it made no real difference.
Slightly off topic can someone point me to an explanation of UMTS???

XDAPW10A

HI
This might be already posted being new to this form. I need help I purchased XDA model above from UK from ebay the phone is unlocked. After browsing i notice XDAPW10B is made for the states. Well I didn't do my homework before i purchased cingular is 1900 band which is my carrier. MY XDAPW10A is 900/1800 Band which i didn't realized ontil after sale. Can I flash rom to change where it will work on cingular band? what are my choices. Please help anyone
There was a file as part of the Special Edition ROM that could tell the software to switch between 900/1900 and 900/1800 however it wouldnt actually work as the hardware is different.
Affraid you cant use that model as a phone in the US
Stot
Thanks friend i was afraid that will be the case i will just resell on uk ebay

Question about the XDA Developers Rom.....

Hi, I have a Wallaby which was originally from the United States. I live in England however. I downloaded the XDA Developers Rom and installed it which unlocked my device with no problems. However, the only network I seem able to use is O2 (I tried a friends chip) but I want to use my T-Mobile UK chip. I tried the function included in the rom which allows you to switch bands but I still cant get it to recognise T-Mobile, I don't know if it is anything to do with the radio stack, I don't think it is but I could be wrong? Anyway, can any of you offer anyt advice or have you maybe had the same or a similar problem? If so I would really appreciate any imput you might have. Many thanks.
xda1 is only dualband and us xda1's only support 900/1900 not 900/1800 like eu use no way of getting around that really
hi
my previous wallaby was phone edition DT Com from the states, friend of mine which bought it there for me unlocked it and I used it normally in Bosnia, also he had one US wallaby marked as siemens sx56 also unlocked and used here too. As far as I can remember he also bought one more for his cousin here too... Now you know where all those old wallabys are - here !
Dont want to argue is it possible or not just want to inform you, maybe those wallabys was some special kind, dont know.
GL
900Mhz is used by both us and eu so operators who use that band are supported but there is no way to make a dual band a tri band or any way to change a eu dualband to a us dualband that i know of
My Qtek 1020, incidentally bought in the UK, also suffers from this 'feature' and as a result only works on O2 and Vodafone (maybe others but those for sure), but definitely not on T-Mobile and Orange.
Regards,
Neil.

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