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CDMA question

Hi,
One friend who uses in México a CDMA EV-DO cell provider (iusacell) want to buy a CDMA device in USA and then bring it back and use it.
As I am not familiar with CDMA, is there something he should know in order to get compatibility in México?
What about ESN? is there something he should be aware?
Thanks in advance for your help

Nobody!
Any clue?

if he has the correct prl and his carrier wants to add the esn to their database (most wont) then he should be fine.

Thanks josefcrist,
let me get this clear, so it´s not like a GSM model that you can buy an unlock code then use it in any cell provider you like?
What is this prl?
Thanks you for your explanations

cdma is a competing technology to gsm
and it's not compatible with gsm in any way

orb3000 said:
Thanks josefcrist,
let me get this clear, so it´s not like a GSM model that you can buy an unlock code then use it in any cell provider you like?
What is this prl?
Thanks you for your explanations
Click to expand...
Click to collapse
it depends on which phone he is buying and what provider..like you can use sprint on boost by doin som tricks

orb3000 said:
Thanks josefcrist,
let me get this clear, so it´s not like a GSM model that you can buy an unlock code then use it in any cell provider you like?
What is this prl?
Thanks you for your explanations
Click to expand...
Click to collapse
pm me if you need more help. No you cant just "unlock" a cdma device. the only way that you can use a cdma phone with another cdma carrier is if they want to add your meid/ esn number to their database.

Thank you
PM sent

[Q] (Q) Intresting thing does anyone know that?

This question is from ppl where they have no carrier boundation but all ppl can give their opinion Can i buy a android smartphone from a carrier based company like at&t or t-mobile and bring it to my own country where is no carrier boundation and get the phone rooted/unlocked will it be able to run normally like other phones/unlocked phones? I'm asking this coz i live in a non-carrier bound country,cost of unlocked/sim free phone is 550$ and carrier bound is 150$. Now even the dumbest would had understanded why im asking it Plz answer this coz i dont know it. Thanx in adv.

Yes if you can get it unlocked it will work just like an unbranded phone. You have to be careful with the frequency bands though. T-mobile uses the 1700 band which isn't prevelant overseas. AT&T phones work well all over the world, as they use the same bands as most other GSM networks. Verizon and Sprint use CDMA instead of GSM, so they would be useless for you.

lowandbehold said:
Yes if you can get it unlocked it will work just like an unbranded phone. You have to be careful with the frequency bands though. T-mobile uses the 1700 band which isn't prevelant overseas. AT&T phones work well all over the world, as they use the same bands as most other GSM networks. Verizon and Sprint use CDMA instead of GSM, so they would be useless for you.
Click to expand...
Click to collapse
Thanks for ur response btw in my country 900/1800 band is used. Can u tell me specifically other than cdma network which carrier uses this type of bandwidth?

Sim unlock galaxy s3 on verizon? :(

Can someone please help me with me new galaxy 3s? I just bought it from USA and i want to use it on Greece but it is locked on verizon.... What should i do?

That's an 800MHz/1900MHz CDMA phone. If Greece is like the rest of Europe and uses GSM, the phone doesn't have the radios to work there, so you can't use it. (The SIM is for data, not voice, but you need the basic connection to the network for it to work, and a CDMA phone won't connect to a GSM network.)
You should sell the phone to someone in the US (who wants a Verizon phone - it can't be "unlocked" for other carriers) and buy the GSM version of the phone.

Rukbat said:
That's an 800MHz/1900MHz CDMA phone. If Greece is like the rest of Europe and uses GSM, the phone doesn't have the radios to work there, so you can't use it. (The SIM is for data, not voice, but you need the basic connection to the network for it to work, and a CDMA phone won't connect to a GSM network.)
You should sell the phone to someone in the US (who wants a Verizon phone - it can't be "unlocked" for other carriers) and buy the GSM version of the phone.
Click to expand...
Click to collapse
New Verizon phones have worldwide roaming ability (including the S3) so it should work on any GSM carrier outside the US.
Sent from my DROID2 using xda premium

gagdude said:
New Verizon phones have worldwide roaming ability (including the S3) so it should work on any GSM carrier outside the US.
Sent from my DROID2 using xda premium
Click to expand...
Click to collapse
It is a sch i535rwb 4g phone. How can i check if it has a worldwide roaming phone? Also what should i do so that i can use it in Greece?

You need the SGH T999 (The GSM variant of the SGSIII) The Verizon variant should NOT work in Greece on a Greek carrier.

ItzCrooK2UxD said:
You need the SGH T999 (The GSM variant of the SGSIII) The Verizon variant should NOT work in Greece on a Greek carrier.
Click to expand...
Click to collapse
Are you sure for that? If i am not wrong this is an US version too, whats the diference and i can use sgh t999 in Greece?

I used to think it was native but apparently not. You can still enable worldwide roaming though.
Here's the thread, you need to do some hackery
http://forum.xda-developers.com/showthread.php?t=1809314
Sent from my MB508 using xda premium

You can just root it and and flash the synergy mod rom and it will work on any carrier

Does it actually have a SIM card slot or just a built in one?
If you're looking to use it primarily in your area I'd look for a different phone - sell or trade this one. I've heard the GSM can be used but that it's pretty terrible and certainly not what you'd want for a primary phone.
Sent from my SGH-T999 using Tapatalk 2

Sidekick CDMA?

Hello everyone,
I just picked up a sidekick 4g I would like to use this phone on Verizon's 4g CDMA network, what would it take to switch this phone to accept CDMA?

House#21 said:
Hello everyone,
I just picked up a sidekick 4g I would like to use this phone on Verizon's 4g CDMA network, what would it take to switch this phone to accept CDMA?
Click to expand...
Click to collapse
Unless I'm misinformed, this is not possible at all. Sidekick 4G is a GSM phone, which will only allow it to work on other GSM carriers. Unfortunately, Verizon is not one of them. Sorry.

shadowscott said:
Unless I'm misinformed, this is not possible at all. Sidekick 4G is a GSM phone, which will only allow it to work on other GSM carriers. Unfortunately, Verizon is not one of them. Sorry.
Click to expand...
Click to collapse
You're correct. The best carrier to use the Sidekick on in the US is T-Mobile.

I got a SIM unlock code from T-Mobile, and now I can use it on any GSM network worldwide. There are also other ways of unlocking it. But it definitely does not work on CDMA. Phonearena.com is your friend: http://www.phonearena.com/phones/T-Mobile-Sidekick-4G_id5158. Always check the specs before you buy a phone to make sure it will work with your carrier. Even if a phone will work on CDMA, that doesn't mean it will work on Verizon. For example, the Nexus 5 has CDMA but will work only on Sprint-based networks (in addition to GSM), not Verizon.

no its just GSM..

FreedomPop? Offical Photon Q LTE support? When? Getting a Q on FP now?

Starting to do my research on taking my Photon Q LTE from Sprint over to FreedomPop.
Has anyone done this yet?
How did you do it and what is your opinion of the entire experience?
Is it Officially Supported by Freedom pop? If not, when?
If not supported, how to get a Photon Q LTE on FreedomPop now?
If you have any experience with FreedomPop service, please give the geographic service area you've tried and your impression of the FreedomPop service.
Thank you.

No LTE for all "SIM-cards" except the buit-in one.
There is afaik no chance to get LTE working with another carrier than the original one (sprint).

Loader009 said:
No LTE for all "SIM-cards" except the buit-in one.
There is afaik no chance to get LTE working with another carrier than the original one (sprint).
Click to expand...
Click to collapse
But FreedomPop is a Sprint MVNO...
I'm not saying this will guarantee it'll work, but I'd say there's a much better chance it will.
I'm kind of curious, but not sure I'm ready to switch my phone to FreedomPop. Maybe I'll try it out on my roomie's phone first...

4g LTE works for the photonQ on Voyager Mobile and Ringplus, those are the best sprint mvno's imo...

Then it have to work without hardware modding, right?
If I'm wrong and it works with a hardwaremod, then other carrier with the same LTE frequency should also work.
I'm kind of confused, how LTE is working in our Q.

Loader009 said:
Then it have to work without hardware modding, right?
If I'm wrong and it works with a hardwaremod, then other carrier with the same LTE frequency should also work.
I'm kind of confused, how LTE is working in our Q.
Click to expand...
Click to collapse
What we mean by Sprint MVNO is they basically resell Sprint service. So you aren't paying Sprint directly, but you are using their towers/network. The MVNO leases the network space from Sprint... Pretty much all the big providers lease space on their network to gain another revenue stream.

Yes, I know what a MVNO is.
But in my country you need for each MVNO an own SIM-card.
I assumed that something similiar is done in the US.
If you can change to another Sprint reseller without the need of change something in hardware, then it might work.
I'm probably unaware of the typical US mobiles and the carriers technology.

Loader009 said:
Yes, I know what a MVNO is.
But in my country you need for each MVNO an own SIM-card.
I assumed that something similiar is done in the US.
If you can change to another Sprint reseller without the need of change something in hardware, then it might work.
I'm probably unaware of the typical US mobiles and the carriers technology.
Click to expand...
Click to collapse
Typically MVNOs that operate on GSM networks have their own SIM cards, however CDMA carriers (such as those running on Sprint) identify the phone by its internal ESN. Since there is no SIM to swap, the ESN has to be reassigned from Sprint to their MVNO.
And FYI, the Q works beautifully on Ting as well, LTE and all.

BAMF said:
Typically MVNOs that operate on GSM networks have their own SIM cards, however CDMA carriers (such as those running on Sprint) identify the phone by its internal ESN. Since there is no SIM to swap, the ESN has to be reassigned from Sprint to their MVNO.
And FYI, the Q works beautifully on Ting as well, LTE and all.
Click to expand...
Click to collapse
Nice, thanks for the explanation.
Now, is Ting a GSM or CDMA carrier/MVNO?
I assume it's a CDMA MVNO, which works inside the sprint network and is (because of sprint) able to operate in the LTE network.

Freedom Pop is a rip off I set up a free data account and they tried to charge me. The only customer service is through there forums.
I use Ting they are great.
They resell Sprint.
Sent from my PHOTON Q using XDA Premium 4 mobile app