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I just bought a SX56 and was using it with T-mobile service. I switched to Cingular and when I put my sim card in, I can't get a signal. I have tried to change the gsm bands but even this doesn't work. Can someone please help because I love the features of this phone and don't want to go back to a normal phone.
Have you unlocked it?
Yes it's unlocked. I've tried it on all bandwidths and it won't detect cingular network. When I manually do it it won't save or work when I put cingular's network at the top of the list.
Cingular operates on 850/1900 and some world phones on 1800 to. What is the problem I may have. Can I not use my SX56 with cingular?
you should be able to use a t-mo radio stack on a SX56 to get signal with Cingular GSM. You may have change the radio stack if you are still using AT&T radio stack. Cingular is still converting TDMA to GSM in some areas. While to-mo has allways been GSM in the US. Rare poss explination: AT&T selling GSM SX56 in your area that they have recently gone GSM in. You a t-mo customer bought a gsm phone and used it on another gsm providers network, then attempted to switch to Cingular which may not have gone GSM in your area. If you went into a Cingular store and they gave you a SIM card they should have gsm coverage. If this is the case I would bet your radio stack is still AT&T's so try changing to t0-mo stack and see what you get. Search this forum for links under ROM upgrades or try yorch.net.
Since we are on the subject oes anyone know where to get a generic worldwide radio stack for the XDA1 like on the i-Mate(s)? :?
I tried to download radio stacks from yorch.net and get error pages. Any other ideas? I lost and I really like this phone.
bigjusee said:
Cingular operates on 850/1900 and some world phones on 1800 to. What is the problem I may have. Can I not use my SX56 with cingular?
Click to expand...
Click to collapse
It depends on the area you are in for Cingular, most of their GSM operations are on 850 which the SX56 won't work on. If you are in the Carolina's I know it will work, but the other areas outside of here depend on the area. If you ask Cingular about it they will probably tell you it won't work. I would just ask Cingular what freqs. the towers in your area support. That will tell you for sure whether it will work or not.
Siemens sx 56.... cingular
Same here.... My sx56 reads "NO SERVICE"... I was not sure if it was the sim or not so I took it to a local Cingular Dealer and the tecnician took my sim and inserted it to a Cingular cell phone and the service came on... Inserted the sim back in the Sx56 and again "NO SERVICE"
Things Ive tried ....
- reset the SX56
- went to boot loader mode (ver ver 5.22) and did the GSM Audio test and this produced a load audible sound
- went back to the bootloader mode and selected the GSM 900, 900/1800, and 1900 and still "NO SERVICE"
- then I thought.... could it be locked? inserted a Tmobile sim again and the service came on... NOT LOCKED
MAN... WHATS going on!?!?!? previous to this Cingular service I had Tmobile which worked like a breeze... WAP and ALL!!!!
Any IDEAS anyone???
AND a BIG CONGRATS>>>>>> to the developers putting all this effort on this product and on such a COOL looking web site.
Rom version: 4.00.05 ENG
ROM date: 06/05/03
radio version: A.20.10
protocol version: 324e4
XDA1 issues with Cingular
OK, here is my life story:
I purchased the XDA from ATT Wireless but want to use it on Cingular, so I unlocked the XDA and it working fine with the Cingular SIM. (However, the network XDA picked up is T-Mobile and not Cingular). And the XDA works great in my hometown Houston, Texas.
I then travel to Indianapolis, Indiana, as soon as I got out of the plane, switched on the XDA, and got a signal for celluar service. Great so far.
When I get to my office which is 60 miles southeast of Indianapolis, I got no signal. When inquire the available network, I can see several Cingular networks listed on top of the drop-down list, and then ATT Wireless, and then T-Mobile, but the XDA won't be able to register to any of these networks??? Then funny thing is this is the place where I signed up with Cingular service.
When I contact Cingular, the representative said that the XDA appear to work while roaming onto other networks, but it will not in the local Cingular service area. She said that my PDA phone is not compatible with the local network. Is this possible?
Originally, my RS version is A.20.10, I then upgrade to A.33.02 in hoping to resolve the problem, but no luck.
I'm now trying to upgrade my RS to T-Mobile 6.24.00 from yorch.net but when unzip the file, it asks for a password. Does anyone know what the password is???
Am I going in the right direction to make my XDA usable in a Cingular network?
I am having the same issue getting my unlocked T-Mobile PPCPE to register on a network when using a Cingular Wireless SIM in the Atlanta area.
The phone can see both T-Mo and AT&T networks when using the Cingular SIM, but it will not register one either one of them...? It does not see the Cingular network however, as I believe that Cingular is using the 850 band, with roaming agreement in place with T-Mo and AT&T.
I am using the WM2003 ROM and radio versions.
Any ideas why it will not register on the T-Mo or AT&T network, even though it "sees" them...?
I am having the same issue getting my unlocked T-Mobile PPCPE to register on a network when using a Cingular Wireless SIM in the Atlanta area.
The phone can see both T-Mo and AT&T networks when using the Cingular SIM, but it will not register one either one of them...? It does not see the Cingular network however, as I believe that Cingular is using the 850 band, with roaming agreement in place with T-Mo and AT&T.
I am using the WM2003 ROM and radio versions.
Any ideas why it will not register on the T-Mo or AT&T network, even though it "sees" them...?
I am a Cingular customer care rep and I can tell you that the XDA will not work in the Indiana or Atlants markets. Reason being is that those markets are 850 and has no signs of being 1900 atleast until the AT&T buyout happens.
I am in South Mississippi and when we go GSM it will be 1900 but if I travel back to New Orleans I get no Cingular service because it again is another 850 market.
At this point the only 1900 GSM markets we have in the Southeast US is the Carolinas, Mobile, and South MS. Everyone else is 850.
Many thanks for the response. The curious thing to me is that if my device can accutally "see" the T-Mo and AT&T networks when it has a Cingular SIM installed, why won't it let me register on those 1900 Band networks? It seems that the Cingular SIM is somehow locked to the 850band and prevents the device connecting to any other network.... Is it because that where a Cingular 850band network exists, Cingular does not have roaming agreements in place with the other providers in that area? Do you know if the Cingular SIM could the SIM be programmed/enabled on the network side to allow a connection to a 1900 network?
cbrow51 said:
Many thanks for the response. The curious thing to me is that if my device can accutally "see" the T-Mo and AT&T networks when it has a Cingular SIM installed, why won't it let me register on those 1900 Band networks? It seems that the Cingular SIM is somehow locked to the 850band and prevents the device connecting to any other network.... Is it because that where a Cingular 850band network exists, Cingular does not have roaming agreements in place with the other providers in that area? Do you know if the Cingular SIM could the SIM be programmed/enabled on the network side to allow a connection to a 1900 network?
Click to expand...
Click to collapse
I have thought the same thing at times and unfortunately I can't say one way or the other. I do know that with my XDA when I travel back to New Orleans I lose signal literally when I cross the state line. I am buying an 850 capable phone soon so I can test my theory out and see what can be done.
Does your say unable to register on network too? When I switched my band to 1800 for some reason I was able to see the Cingular network on the phone but again not able to get on the network.
yes, excatly, "cannot register on the network"... I have a "wild" theroy that says if I get a SIM from a Cingular store in an area where they have a native 1900 Band network, it might be set up in such a way to let me roam in the Atlanta area...? The other question I had that you may be able to answer is do Cingular sell any GSM phones that do NOT have the 850 band, or are all the Cingular GSM phones now 850/1900/900 ?
cbrow51 said:
yes, excatly, "cannot register on the network"... I have a "wild" theroy that says if I get a SIM from a Cingular store in an area where they have a native 1900 Band network, it might be set up in such a way to let me roam in the Atlanta area...? The other question I had that you may be able to answer is do Cingular sell any GSM phones that do NOT have the 850 band, or are all the Cingular GSM phones now 850/1900/900 ?
Click to expand...
Click to collapse
I can squash your theory on the SIM right now because I have an active sim from a 1900 market and it still don't work.
As far as the 1900 only phones, we haven't carried them in about 2 years because the Carolinas and California were our only GSM markets for a while and we had no need for 850 but now all we have is dual band or higher for 850.
Ok, many thanks. That will save me a trip to the Cingular store in Ohio when I am there next week So, a Cingular SIM will work in any Cingular dual band (or higher) phone allowing it to switch between available 850 and 1900 band networks that are operated by Cingular. In the case where a Cingular network is present, will they let you pick another carriers network (say AT&T) or will it force you to the Cingular network every time?
cbrow51 said:
Ok, many thanks. That will save me a trip to the Cingular store in Ohio when I am there next week So, a Cingular SIM will work in any Cingular dual band (or higher) phone allowing it to switch between available 850 and 1900 band networks that are operated by Cingular. In the case where a Cingular network is present, will they let you pick another carriers network (say AT&T) or will it force you to the Cingular network every time?
Click to expand...
Click to collapse
It always will look for Cingular first but then go from there to a certain list of carriers and if those are not found it says to hell with it and takes anything it can get.
Hmmmm... still a mystery then, as my PPC PE could see both AT&T and TMo networks when the Cingular SIM was in it, but was unable to connect to either of them...? I have some contacts in the Cingular IT organization in Atlanta, so I'll see if they can shed any more light. Will let you know what I find out.
I feel your pain
If you think your experience is frustrating the plot thickens.
I'm in South Florida.
I have a TMobile that I unlocked middle of last year (Aug/Sep 2003) put in a Cingular SIM and worked perfectly (Roaming on the TMobile 1900 network) then a few months ago I had a lot of Outdoors, rugged type activities planned so I decided to pamper my PocketPC and put the Cingular SIM back into the "disposable" Cingular GSM that I got for a penny
Well days turned into weeks and months so a few days ago I decided to put the SIM back into the PocketPC. When I did, I got a "no signal" from both SIM's. I tried setting(bandwidth) and testing the GSM through the bootloader etc. You name it I tried it . I eventually upgraded to the TMobile WM2003 ROM and Radio Stack in desperation. And you guessed it...No joy. I get "NO SERVICE"
I know Cingular down here has migrated to the 850 but I don't know why roaming on TMobile 1900 has been disabled.
So in a nutshell: Cingular SIM used to work in a TMobile XDA up to a few months ago and now doesn't.
I have a UK purchased O2 XDA exec, but now live in the USA. The O2 XDA exec is supposedly unlocked for any sim cards (I have been using a Virgin sim in the UK fine) .
I purchased a PAYG USA T-mobile sim that won't work, anyone got it working, or if I need a different kind of sim?
As soon as you put in the sim, it comes up with incorrect sim message.....
Is it possible that O2 could have it unlocked to European or UK but Locked to USA sim? Strangely there does not seem to be any way of putting in an unlock code in any case.... it just gives the incorrect sim message..............
Hopefully it will work with another sim???!!!
Any help greatlt appreciated!
I have a qtek 9000, which was never locked. I live in Poland, and tried 3 sim cards from plus gsm. They all gave the same message you are getting. The only card that worked successfully was the plus gsm 3g sim card. Also, cards from another company worked. There seems to be some difference in 'new' and 'old' sim cards, and the universal is very tempermental if you don't have the right one.
I have a qtek 9000, which was never locked. I live in Poland, and tried 3 sim cards from plus gsm. They all gave the same message you are getting. The only card that worked successfully was the plus gsm 3g sim card. Also, cards from another company worked. There seems to be some difference in 'new' and 'old' sim cards, and the universal is very tempermental if you don't have the right one.
I have an O2 XDA EXEC from the UK which I purchase from a friend and have him sent to me here in the US. I am using Cingular without any problems.
Remeber guys, Not all operators in the US use the same frequencies/sim types as their European Counterparts.
If the sim is trying to operate on a frequecny that the universal is not able to use, then it might cause this problem.
superseagulls:
As far as I know - a device which is SIM UNlocked cannot be locked to specific SIMs.
It is far more likely that the cellular operator that you have purchased your new SIM in the USA from is using different frequencies than are supported by or in some cases selected within your device;
OR (possibly) the operator puts some usage limitations/locks within the SIM - ask your new operator about using GSM devices which are not purchased from them and which frequencies are used.
I suggest you initially ask them anonymously in case they DO have problems with devices other than their own
jasjar on T-mobile
I am using a jasjar on T-Mobile in the USA. I got 3 phones on a family plan, took the SIM out of one to put in jasjar, and it has worked with no problems. I told the sales lady I would be putting the SIM into a 3rd party device, and she didn't see any problem with that. It was a Motorola phone, but I don't have the model number offhand.
Cheers.
superseagulls said:
I have a UK purchased O2 XDA exec, but now live in the USA. The O2 XDA exec is supposedly unlocked for any sim cards (I have been using a Virgin sim in the UK fine) .
I purchased a PAYG USA T-mobile sim that won't work, anyone got it working, or if I need a different kind of sim?
As soon as you put in the sim, it comes up with incorrect sim message.....
Is it possible that O2 could have it unlocked to European or UK but Locked to USA sim? Strangely there does not seem to be any way of putting in an unlock code in any case.... it just gives the incorrect sim message..............
Hopefully it will work with another sim???!!!
Any help greatlt appreciated!
Click to expand...
Click to collapse
Your PAYG sim might be looking for special settings on the T-Mobile phone. When I workjed at T-Mobile UK we tied the Java extras on the SIM to the handset, so if you used a non t-mobile handset you didn't get the extra features.
You probably have an old 8k or 16k SIM,
Is it more than a year old,
The XDA Exec etc all require the latest 32k SIMs to work,
You should have no problem with T-Mobile USA just explain you need an updated SIM for a new phone
I have the same problem with Optus, Australia. Anyone know what frequency they run on?
Frequencies:
USA/Canada GSM 800, GSM 1900. UMTS 1900. UMTS 800
Europe, Asia, Middle East, Africa, Oceania: GSM 900, GSM 1800, UMTS 2100
South America: A mix of the above
The only SIMs which look for specific firmware in the US are TracFone and Net10. The SIM probably needs to be replaced. This is aproblem in other newer phones too
I have an 02 xda exec bought in the UK. I am using it in Jamaica with a local Jamaica C & W sim. The phone is not locked and is currently using radio 1.08. My Jamaica sim has full roaming and works perfectly throughout the caribbean when used in my old Sony p800.
The problem is that when the sim is in the Exec the phone will not switch networks when I am in Trinidad. Works fine within Jamaica but refuses to log onto the Trinidad C & W network
Jamaica has two providers, C & W and Digicel. I am not sure exactly which band each uses but since the p800 is 900/1800/1900 and works fine on both networks they are clearly using bands that the O2 is supposed to recognise. In Jamaica the xda will lock onto C & W or Digicel depending on which sim is inserted but it always requires a manual search to get it to work. During the manual search, only one network at a time is ever found and sometimes it requires multiple tries to get it to recognise the network.
Trinidad has two providers TSTT (part C & W) and Digicel which are again both using one of 900/1800/1900. When I am in Trinidad, the phone will not even try to seek a new network automatically even after the battery is removed. The signal icon goes straight to the ! icon without the moving .... that indicate it is searching. If I try a manual search on any combination of auto/gsm/wcdma and EGSM+DCS1800/PCS1900, the system will find network 374130 but will fail to register. I assume that 374130 is digicel TT.
I have tried this with a Jamaica C&W sim, a Jamaica Digicell sim and a TSTT sim with the same result in every case. I havent been able to try a Trinidad Digicel sim since they are not yet up and running.
Can someone tell me where to find a complete list of networks with their name and band used so that I can confirm that 374130 is Trinidad digicel. More importantly can anyone suggest why the phone wont switch networks when I roam.
Finally, I should point out that the phone also failed to find networks in Antigua, Barbados and Miami, all of which work fine on my p800 with the same sim
Hi everibody!
Sorry to ask (I did research but haven't found any related post)
I do have a Vodafone Sapain's account, roaming activated. It usually works OK, but I've found that while travelling in some countries (Uruguay, South Africa) I do get the networks names, but my Trinity fails to connect.
I tracked the problem to a certain combination of SIM cards and my Trinity, but neither my providers nor HTC seems aware of the problem.
BTW, I got my Trinity to work with some other SIM cards, both from Vodafone an a third provider, but some others failed. The same applies, I got mi current SIM to work in a friend's phone while roaming in the same country.
Of course, Vodafone says there is nothing wrong with my card nor the network in these countries.
So I guess there is some incompatability between certain SIMs and the P3600 SW (radio ROM maybe?)
Any help?
Regards.
EXACTLY the same problem
I got exactly the same problem - Trinity + Dopod WM5 ROM + Orange FR.
When in Greece, I do "select networks manually", I get Vodafone, Tim, COSMOTE - it could connect only on COSMOTE. With the same SIM card using an ancient Nokia, I could connect to Vodafone with no problems whatsoever. Sometimes I feel like new technology creates more problems rather than solving them.
Please, could someone help, it was a very frustrating experience.
realn said:
I got exactly the same problem - Trinity + Dopod WM5 ROM + Orange FR.
When in Greece, I do "select networks manually", I get Vodafone, Tim, COSMOTE - it could connect only on COSMOTE. With the same SIM card using an ancient Nokia, I could connect to Vodafone with no problems whatsoever. Sometimes I feel like new technology creates more problems rather than solving them.
Please, could someone help, it was a very frustrating experience.
Click to expand...
Click to collapse
I never got it fully right, but since I've changed to Movistar the problem seem solved.
I'm almost sure that the problem lies in the "hidden sw" the telcos are putting into the SIMs, but they will never admit......
I use Vodafone Romania as home network and I have travelled in over 25 countries in and outside Europe, with no problems at all.
You might want to check on your Radio and try another version, see if that helps.
Sometimes it helps to manually select operator (there is the option to "Set networks"), and check list of operators to see if the one you want to use is on the allow list.
tnyynt said:
I use Vodafone Romania as home network and I have travelled in over 25 countries in and outside Europe, with no problems at all.
You might want to check on your Radio and try another version, see if that helps.
Sometimes it helps to manually select operator (there is the option to "Set networks"), and check list of operators to see if the one you want to use is on the allow list.
Click to expand...
Click to collapse
I do travel every year about as many countries as you, usually with more than one phone and more than one SIM, and I can garantee that operators behave differently, even different SIM types from same operator behave different.
Not an easy answer to a complex problem.
Hi all,
I hope this argument has not been already discussed. Because all the keyword related to this specific problem are very general, I'm having an hard time searching for related posts...
I have a Qtek 9100 (not branded and never locked to any company) that I used successfully with all the Italian mobile companies. I moved to Florida couple of month ago, and my Vodafone SIM has been working fine in roaming.
Because roaming is not cheap at all , I just bought a t-mobile SIM card. But when I insert it the phone says "Waiting for connection" forever. If I try to select the network manually, the only available one is "cingular".
I also bought an At&T SIM, that according to AT&T and T-Mobile customer services, should have exactly the same technology for GSM connection, and so my phone should work either on both or none...). Strange enough, it works perfectly with the At&T.
However, I would like to use T-Mobile, as it is much cheaper for the type of service I need.
Can anyone help me? Do you think it can be related to the GSM firmware?
Thanks
Giacomo
Did you try flashing a stock t-mobile ROM to it?