CDMA question - General Questions and Answers

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

Related

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.
Click to expand...
Click to collapse
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.
Click to expand...
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
Thanks a lot for the valuable information you give gamescan.

Changing region UK to Canada

Hey guys, I have a question and hopefully you can answer and point me into the right direction.
I recently moved from England where i purchased my HTC sensation, and i moved too Canada, British Columbia. My phone is S-off and everything, so i was just wondering if i can get it to work in Canada, and what i would need to download and change or w.e else for it to be able to work on canadian simcards?
any information is greatly appreciated
Thankyou
Jas_932 said:
Hey guys, I have a question and hopefully you can answer and point me into the right direction.
I recently moved from England where i purchased my HTC sensation, and i moved too Canada, British Columbia. My phone is S-off and everything, so i was just wondering if i can get it to work in Canada, and what i would need to download and change or w.e else for it to be able to work on canadian simcards?
any information is greatly appreciated
Thankyou
Click to expand...
Click to collapse
have you tried a canadian sim? your phone may already be unlocked...did you 'buy' it or did it come with a plan?
to unlock
http://forum.xda-developers.com/showthread.php?t=1232107
what bands do they use in canada? in the uk?
the sensation comes with
3G 900/2100
OR
3G 850/1900/2100
you need to find out which one you have, and then go with the telephone company that supports it
sorry, i don't know how to find out what you have, i'm sure other people do though
Hey man, thanks for the reply, i found out the in Canada, it is 3G 850/1900 MHz them two bands for 3G which i am not too bothered about, i would just rather keep my phone instead of having to buy a new one altogether. I got my unlock code from the guide posted above which is awesome, but when ever i put in my friends Canadian simcard it just comes up with no service.. it allows me to look at his messages etc however. I will try some other carriers today and see if anything else works
I was/still am on a Vodafone Contract, which is what the phone got shipped with.
This may sound like a really nooby question, but does flashing a different radio help at all? The main carrier where i am is TELUS, so i dont know if any of these; http://forum.xda-developers.com/showthread.php?t=1202867 would help at all?
Thanks for your help!
Your UK Vodafone 3G frequencies are 900/2100. You would therefore not get 3G there. You need to check whether Telus operate 2G at all. Bear in mind that some operators, like "3"in the UK use only 3G .
For your UK Sensation to work there, you need to find a GSM operator that uses 2G. This is you only option.
or you could purchase mobile wifi 3G (if they do that in canada) and use that to access the internet from your phone
...it's a shame, but your best bet would be to sell the sensation...you simply won't be able to access anything other than GSM in Canada
edited to add: http://en.wikipedia.org/wiki/UMTS_frequency_bands
International z710e works in Canada with Wind and Mobilicity. The 3G frequency of z710e is 900/AWS/2100. Wind and mobilicity operates on AWS.
For 2G connectivity, it's either Fido, Chatr, or Rogers.
You can confirm phone (850 or 900) country/carrier compatibility from:
http://forum.xda-developers.com/showthread.php?t=1364100
I did try to post this info yesterday but seem to have completely failed to get it from the laptop to XDA.
For the Z710e it shows the following for Canada:
Thankyou so much Colin thats awesome will give it a deeper look after the weekend when im not working.
Cheers man
Jas_932 said:
Thankyou so much Colin thats awesome will give it a deeper look after the weekend when im not working.
Cheers man
Click to expand...
Click to collapse
NP, hope it helps.
to find out if you have the Z710e or Z710a
goto settings>>About phone>>Phone identity. Look at the model number at the top
I believe European models are the same as Asian models which is Z710e. You can get 3G with Wind or Mobilicity networks only. I recommend Wind, they have $29 no contract with unlimited data, unlimited texts including international and unlimited calls Canada wide within wind home zone. Your phone will still work with rogers, bell, fido, kodoo etc. but only 2G

[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?

[Q] Want to join your company

Hi,i`m from Asia and i want to buy a skyrocket when i sell my motorola photon. I want to know if skyrocket support ussd codes for gsm users? Because photon didnt support it. I would be grateful if gsm users enlighten me
I have no clue whats uusd codes are but im using skyrocket on a gsm network.
kishke said:
I have no clue whats uusd codes are but im using skyrocket on a gsm network.
Click to expand...
Click to collapse
ussd codes are for checking your balance or other operations for ex on our carrier you need to dial *777# for checking your balance and etc
Oh I just do it online or just the provider's app
on prepaid gsm carriers these codes are very important
anaragayevafr said:
Hi,i`m from Asia and i want to buy a skyrocket when i sell my motorola photon. I want to know if skyrocket support ussd codes for gsm users? Because photon didnt support it. I would be grateful if gsm users enlighten me
Click to expand...
Click to collapse
Yes, it supports USSD.

[Q] lumia 822 ... can be unlocked for gsm

is that this topic was posted... but I need to know if the Lumia 822 supports any gsm network and data if you work... someone help thanks before hand
Take a look here:
http://www.gsmarena.com/nokia_lumia_822-5090.php
malvo26 said:
Take a look here:
http://www.gsmarena.com/nokia_lumia_822-5090.php
Click to expand...
Click to collapse
thanks watch and accepts the gsm bands I want .... but comes unlocked for use in these band or is there a way to unlock it .... thanks for your information
It depends where you are, who your carrier is, but if you get a sim unlocked and unbranded phone you will have no restriction regarding the band width. Also check what band width your carrier (server) supports.
malvo26 said:
It depends where you are, who your carrier is, but if you get a sim unlocked and unbranded phone you will have no restriction regarding the band width. Also check what band width your carrier (server) supports.
Click to expand...
Click to collapse
This phone supports the bands of the companies in my country.... I want to know if you can unlock.... and if it works
As I already posted buy a sim unlocked and unbranded phone and you'll have no problem.

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