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CDMA on Universal????

Is there any way to use a CDMA sim on my htc universal???
please help!!!

you have a cdma sim?! you're a millionaire!

CDMA
The Universal has WCDMA, which is World CDMA the standard that the rest of the world uses, except North America, Sprint and Verizon use a different standard so its incompatiable with their networks. Find out what network carriers that use CDMA in your area use and maybe you might get lucky.
Oh yeah CDMA doesn't use sim cards.

Harry Tuttle said:
Oh yeah CDMA doesn't use sim cards.
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Not quite correct. Some do.

Harry Tuttle said:
The Universal has WCDMA, which is World CDMA the standard that the rest of the world uses, except North America, Sprint and Verizon use a different standard so its incompatiable with their networks. Find out what network carriers that use CDMA in your area use and maybe you might get lucky.
Oh yeah CDMA doesn't use sim cards.
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CDMA does have a card now a days its called RUIM instead of SIM.WCDMA is not world CDMA if im not wrong itd WIDE CODE DIVISION MULTIPLE ACCESS.which is 3G of gsm...in other hand the cdma which is used is a bit different from wcdma.please correct me if im wrong...n i tried using a cdma sim in other words ruim in my jasjar,didnt work.

of course cdma didnt work in uni.and no double gsm too.

Changing the CDMA Radio

I just got off the phone with Telus and what they told me is that they are releasing ANOTHER TP2 on the GSM network and that I would have to buy another phone TP2 just to get onto the GSM network.
This being said, is there any way to modify the radio signal in my CDMA phone to read both CDMA and GSM, or atleast get more speed out of my phone for connectivity to the net?
*update
I just got off the phone with HTC and the lady I spoke with told me, that to change the radio frequency I just had to change the ROM. That being said IF, I put a Telus HSPA ROM on there the phone should be capable of working on the network. Now that being said. If this is possible would it not be possible to run on both networks, CDMA and HSPA, making the signal control software dependent, meaning I have CDMA controls for standard phone calls and HSPA for running the highspeed network?

Update in previous post.

Eazy, just HardSPL and security unlock your radio bro...Only then you can use the GSM networks in your country (I'm guessing it's US)
But you can only activate one at a time. Either GSM only or CDMA only..CMIIW..
Just my 2 cents

Actually it's Canada
Right but if I unlock the phone, and switch it back and forth on and off the networks, how would that affect my account, could I hide the fact i was doing this?

slight22 said:
Actually it's Canada
Right but if I unlock the phone, and switch it back and forth on and off the networks, how would that affect my account, could I hide the fact i was doing this?
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I have this phone on Telus...I got it unlocked and I put my work sim card in this phone and it's on rogers. I switch networks when necessary....If you get a Telus sim card you would be able to use it GSM.

You should be able to pick which network you use. I saw it in phone settings, I think.

bundybp said:
I have this phone on Telus...I got it unlocked and I put my work sim card in this phone and it's on rogers. I switch networks when necessary....If you get a Telus sim card you would be able to use it GSM.
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TELUS does not provide GSM at all. They are CDMA and UMTS.

So does this mean its possible. If i have a CDMA Sprint HTC Touch pro 2. That i have the potential of using it on At&t in the US?? All i have to do is unlock it?? Any information would be greatly appreciated.. Thanks!!

And if one does unlock a radio on said Telus phone, can one use both radio frequencies, thus enabling both CDMA and HSPA frequencies?

Spike15 said:
TELUS does not provide GSM at all. They are CDMA and UMTS.
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So Telus new 3G network is not GSM? It does have drop down menu showing "Send SMS over" GMS and CDMA. GSM is selected by default.

Telus TP2 Radio Question

Hello,
I am a noob at this so please bear with me.
I have a Telus TP2 and I have unlocked it using the software provided by Olipro.
My objective is to switch my network over to Telus' new UMTS network, using one of their sim cards. Right now it is functioning on Telus' CDMA network.
My question is: Do I need to flash a new Radio to accomplish this? My phone still has the 2.05.00 WV radio on it now. I just need to know if I need to go get a WU radio in order to use Telus' new network.
Thanks in advance.

Hedake said:
Hello,
I am a noob at this so please bear with me.
I have a Telus TP2 and I have unlocked it using the software provided by Olipro.
My objective is to switch my network over to Telus' new UMTS network, using one of their sim cards. Right now it is functioning on Telus' CDMA network.
My question is: Do I need to flash a new Radio to accomplish this? My phone still has the 2.05.00 WV radio on it now. I just need to know if I need to go get a WU radio in order to use Telus' new network.
Thanks in advance.
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The Telus TP2 supports UMTS 2100.
Telus uses UMTS 850/1900 for its 3G network.
In order to get the TP2 running on the UMTS network you'll want to grab a ATT GSM variant from the states and unlock that.
IIRC, Telus is jumping straight to WCDMA/UMTS so it won't be supporting the standard GSM bands. If that's the case, then your Telus TP2 variant won't have anything to lock onto when it is in "GSM Mode."

Ah dang, I guess I didn't really need to unlock the sim on my phone then because it won't work on Telus' UMTS network...
Oh well, if I decide to go back to Rogers I believe that the Telus TP2 will operate on their GSM network.
Follow up question:
Do I need to get an unlocked Radio to use the Telus TP2 on Rogers' GSM network or will the 2.05.00WV one that I have on now work?

yes, you'll need a WU unlocked radio in order to access GSM radios in the states, and canada as well, i believe.
You can find the link here:
forum.xda-developers.com/showthread.php?t=578659

Hedake said:
Ah dang, I guess I didn't really need to unlock the sim on my phone then because it won't work on Telus' UMTS network...
Oh well, if I decide to go back to Rogers I believe that the Telus TP2 will operate on their GSM network.
Follow up question:
Do I need to get an unlocked Radio to use the Telus TP2 on Rogers' GSM network or will the 2.05.00WV one that I have on now work?
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It depends on the specific radio firmware in the device.
If it is like the Sprint TP2, then yes, you would need a separate radio. Sprint does not SIM lock its TP2, however it ships them with crippled radio software which has the 850/1900 GSM bands disabled so that it won't work with US GSM carriers (it simply doesn't see the network).
If it is like the Verizon TP2, then no, you would not need a separate radio, though you would need a SIM unlock. Verizon doesn't cripple the radio software in its TP2. It simply uses a traditional SIM lock.
I've heard that the Telus TP2 is like the Sprint model, but I've not seen one to verify.
If you're not sure, then you can always flash the unlocked radio (assuming you're using the unlock software from Oli) and it'll work.

Hey thanks for the information gamescan. I scoured the Telus Mobility website and tried to find information about their new netowork but they just call it HSPA+. No where does it mention that it is UMTS or GSM. Oh well, now I know a little bit more about cell phone tech.
I don't even know if theres any real benefit to being on Telus' UMTS network compared to their CDMA. Im sure there has to be something....

Hedake said:
Hey thanks for the information gamescan. I scoured the Telus Mobility website and tried to find information about their new netowork but they just call it HSPA+. No where does it mention that it is UMTS or GSM. Oh well, now I know a little bit more about cell phone tech.
I don't even know if theres any real benefit to being on Telus' UMTS network compared to their CDMA. Im sure there has to be something....
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Click to collapse
Quick 3G primer:
W-CDMA and UMTS are the name of the tech. It's also referred to as FOMA in Japan. Phones generally standardize on the UMTS name, so when you're poking around in your phone and see UMTS followed by a number, that indicates the frequency band that the phone will run on in 3G.
HSDPA, HSUPA and HSPA+ are all further revisions to UMTS. They allow for greater speeds on existing infrastructure so long as both the handset and tower support it.
A rough CDMA equivalent would be EVDO and EVDO Rev A. Older UMTS handsets will still work on a HSPA+ network, they just won't run on HSPA+ speeds the same as a EVDO handset will work on a Rev A network, just not at Rev A speeds.
UMTS is often referred to as "GSM" though that is a misnomer. GSM and UMTS are two separate (but concurrent) technologies. While they often exist together on networks that have been GSM and upgraded, they do not have to exist together. You can have a situation where a UMTS network exists but an underlying GSM "2G" network does not.
The most well known example of this is in Japan where GSM never rolled out, but in your case, where Telus is adding UMTS to an existing CDMA2000 network, is similar.
From a user perspective, there is no real reason for you to want to run UMTS over EVDO on Telus. Telus should have greater EVDO coverage so that's what you'll be wanting.
If you really want to run on the Telus UMTS network, look for an ATT branded Touch Pro 2 and get that. Of course that will not run on the Telus EVDO network.

Thank you again sir! I appreciate the replies.
Just curious about one thing, if Telus' new UMTS network isn't really any better than their CDMA right now, then why do they promote it as such a big deal?
I think I read that in order to evolve into the next big cellphone phase (forget the name) that this UTMS network was necessary but why would anyone care what network they are on as of today?
Also, do you know why CDMA is not the "way of the future" so to speak? I know Telus spent millions upgrading and putting in new towers all over...maybe I should go google this stuff lol.

The future is LTE (which is neither CDMA or GSM).
As for why Telus made a hop to UMTS before going to LTE, I couldn't tell you.
All I can envision is that Telus is looking to be more compatible globally with Europe and Japanese business travellers. It may also be a strategic decision to open up compatibility with more possible phone manufacturers.
Putting 1XRTT CDMA + EVDO + UMTS into a phone is an engineering pain. Adding in multiple frequency support (and properly tuning the antenna) is also a pain. HTC aside, many manufacturers are supporting GSM/UMTS because that's what carriers have. The biggest CDMA markets are the US, Canda and South Korea. While it is a lot of people, it also requires another phone variant.
By overlaying a UMTS network, Telus can suddenly work with any handset that supports UMTS 850/1900. That's what's used by ATT in the US. UMTS 850 is also popular in Australia while Europe and Japan use UMTS 2100. T-Mobile US uses UMTS 1700. Many UMTS phones offer tri-band UMTS 850/1900/2100 support. With one of those phones you can run on just about any current UMTS network in the world (excepting T-Mobile US).
Again, this is just conjecture on my part, but they are possible reasons.

Which version TP2 can I buy?

I'm planning to buy an TP2 from ebay but I couldn't decide which version(s) are compatible with my country's cellular networks. I use Vodafone in Turkey and Vodafone uses GSM 900 and UMTS 2100 bands. I read the forum a lot but I got very confused.
I'll use both UMTS and GSM networks because the UMTS covarage is limited in Turkey so far. I'm looking for Sprint or AT&T versions but I didn't understand if need to unlock these devices or not. In a thread I read that Sprint is unlocked for GSM networks but the same thread didn't mention anything about UMTS band. Please make suggestions to me.
I hope that I could explain my concerns clearly.

tasmania said:
I'm planning to buy an TP2 from ebay but I couldn't decide which version(s) are compatible with my country's cellular networks. I use Vodafone in Turkey and Vodafone uses GSM 900 and UMTS 2100 bands. I read the forum a lot but I got very confused.
I'll use both UMTS and GSM networks because the UMTS covarage is limited in Turkey so far. I'm looking for Sprint or AT&T versions but I didn't understand if need to unlock these devices or not. In a thread I read that Sprint is unlocked for GSM networks but the same thread didn't mention anything about UMTS band. Please make suggestions to me.
I hope that I could explain my concerns clearly.
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http://forum.xda-developers.com/showthread.php?t=566043
That should have the information about which phone you need. You can always unlock the phones, so make sure it has the correct GSM/CDMA networks and you should be fine.
*edit*
I should have mentioned this before. Sometimes carriers are really picky about which phones they will activate, make sure that Vodafone will activate the model TP2 that you get.

tasmania said:
I'm planning to buy an TP2 from ebay but I couldn't decide which version(s) are compatible with my country's cellular networks. I use Vodafone in Turkey and Vodafone uses GSM 900 and UMTS 2100 bands. I read the forum a lot but I got very confused.
I'll use both UMTS and GSM networks because the UMTS covarage is limited in Turkey so far. I'm looking for Sprint or AT&T versions but I didn't understand if need to unlock these devices or not. In a thread I read that Sprint is unlocked for GSM networks but the same thread didn't mention anything about UMTS band. Please make suggestions to me.
I hope that I could explain my concerns clearly.
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Click to collapse
The Sprint TP2 will work for you in its stock configuration.
It supports GSM 900, GSM 1800 and UMTS 2100 out of the box and it is NOT SIM locked. Basically all you'll have to do it pop in your SIM card and go.
Now, you will still have to register the IMEI with customs (assuming Turkey still has that stupid ass rule) so it doesn't get blocked from the network, but aside from that you're golden.
If you get the ATT version it will also work, however it will be SIM locked out of the box and you will have to unlock it to use it. The same is true of the Verizon TP2.

burtonsnow8 said:
That should have the information about which phone you need. You can always unlock the phones, so make sure it has the correct GSM/CDMA networks and you should be fine.
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I read that thread 3 times But the the explanations about GSM does not contain UMTS band so i need to ask. Thanks for your reply.

gamescan said:
The Sprint TP2 will work for you in its stock configuration.
It supports GSM 900, GSM 1800 and UMTS 2100 out of the box and it is NOT SIM locked. Basically all you'll have to do it pop in your SIM card and go.
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Thanks. This was the exact answer I expected to get.
On ebay i found a Sprint with bad ESN. In the descriptions it says that it can be used in any networks other than Sprint. Can I use a phone like this in Turkey with confidence?

tasmania said:
Thanks. This was the exact answer I expected to get.
On ebay i found a Sprint with bad ESN. In the descriptions it says that it can be used in any networks other than Sprint. Can I use a phone like this in Turkey with confidence?
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Yes. A Sprint Touch Pro 2 will work just fine with a Vodaphone SIM so long as your local network is one of the three frequencies that I listed.
You only need to replace the Radio ROM if you want to use it on US GSM frequencies.

gamescan said:
Yes. A Sprint Touch Pro 2 will work just fine with a Vodaphone SIM so long as your local network is one of the three frequencies that I listed.
You only need to replace the Radio ROM if you want to use it on US GSM frequencies.
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Thanks gamescan. Does a bad ESN phone be a problem for me?

tasmania said:
Thanks gamescan. Does a bad ESN phone be a problem for me?
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Bad ESN means that the phone has been banned from its home network.
This usually happens because:
1) There is an outstanding bill that was not paid
2) The phone was reported lost and claimed on insurance
3) The phone was stolen
If you are using it on another CDMA network or on a GSM network, the bad ESN will not impact you (aside from possibly in a karmic way).
If it does have a bad ESN you should get it pretty cheap.

gamescan said:
Bad ESN means that the phone has been banned from its home network.
This usually happens because:
1) There is an outstanding bill that was not paid
2) The phone was reported lost and claimed on insurance
3) The phone was stolen
If you are using it on another CDMA network or on a GSM network, the bad ESN will not impact you (aside from possibly in a karmic way).
If it does have a bad ESN you should get it pretty cheap.
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Thanks a lot for the valuable information you give gamescan.

Verizon GS3 "World", "GSM", or ???

The GS3 Verizon is a CDMA device. Supposedly it has GSM compatible radios too. It's supposed to be able to work on GSM networks after a software update coming soon. Does this thing have a sim card slot? I don't see how it would work on GSM networks without it. Does anyone know how this works?
I'm hoping to use it on Verizon in USA, but on Telcel while in Mexico BUT with my Telcel sim. I realize my hopes are slim but if there's a sim card slot maybe it's possible???
Thanks.

ckinninger said:
The GS3 Verizon is a CDMA device but it's supposed to be able to work on GSM networks after a software update coming soon. Does this thing have a sim card slot? I don't see how it would work on GSM networks without it. Does anyone know how this works?
I'm hoping to use it on Verizon in USA, but on Telcel while in Mexico BUT with my Telcel sim. I realize my hopes are slim but if there's a sim card slot maybe it's possible???
Thanks.
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It has a SIM card slot for the LTE. Unsure about compatibility though.

seoulstyle said:
It has a SIM card slot for the LTE. Unsure about compatibility though.
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Actually, I have an old Verizon Motorola Z6c World Phone here that I bought in 2008. It has a Verizon sim card inside.
Z6c Specs say:
2G Network GSM 900 / 1800
3G Network CDMA 1xEVDO (800 / 1900 MHz)
Anyway, there's no LTE involved on the Z6c back then. SO apparently the GS3 will need the sim on non CDMA networks. I just wonder if the software experts here can make it possible to use the sim only at certain times and at the same time unlock the phone.
A lot to ask but will be a huge feature if done.

ckinninger said:
Actually, I have an old Verizon Motorola Z6c World Phone here that I bought in 2008. It has a Verizon sim card inside.
Z6c Specs say:
2G Network GSM 900 / 1800
3G Network CDMA 1xEVDO (800 / 1900 MHz)
Anyway, there's no LTE involved on the Z6c back then. SO apparently the GS3 will need the sim on non CDMA networks. I just wonder if the software experts here can make it possible to use the sim only at certain times and at the same time unlock the phone.
A lot to ask but will be a huge feature if done.
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I said earlier that I wasn't sure about compatibility, but I'm starting to believe that this is not possible, as the Verizon version lacks the proper GSM/HSPA+ radios. There's a model comparison chart that you can expand on the Wikipedia page. Software probably won't be able to pull the miracle you're asking for. Sorry
http://en.wikipedia.org/wiki/Galaxy_S3

Maybe this will help? http://androidcommunity.com/verizon-may-enable-global-roaming-on-lte-phones-soon-20120518/ from what I gather LTE is based off of GSM and its just a matter of unlocking the GSM bands on the phones.

seoulstyle said:
I said earlier that I wasn't sure about compatibility, but I'm starting to believe that this is not possible, as the Verizon version lacks the proper GSM/HSPA+ radios. There's a model comparison chart that you can expand on the Wikipedia page. Software probably won't be able to pull the miracle you're asking for. Sorry
http://en.wikipedia.org/wiki/Galaxy_S3
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The SCH-i535 did recieve GSM certification for bands 850 and 1900. No HSPA+ though.

bbeelzebub said:
The SCH-i535 did recieve GSM certification for bands 850 and 1900. No HSPA+ though.
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Yeah, I don't think the current specs out on the GS3 are totally complete. If the phone is admittedly needing a software update to allow the GSM roaming then they can't just put those bands in the specs with no caveats.