Develop Bugs

Sprint version: does not disable GSM?

The Sprint version is being advertised as an international phone, and comes with a Sprint SIM card pre-installed, and what appears to be a security strap, making it difficult to remove.
Before traveling internationally, you can call Sprint ahead of time to have them active their SIM card, and for the low low price of $1.99/minute, you can use overseas GSM networks to make phone calls, and in many cases, data access.
Of course I'd like to buy a pay-as-you-go SIM card and install that for much more reasonable rates while overseas, but I'm not sure if it's as simple as plugging in a different SIM card.
I had read that the Rogers version of the phone required...something to active the SIM slot, and even then seemed not to work for data via 3G.
Anybody else have the Sprint version? Played with GSM yet?
I'm a little apprehensive to start tearing into it to remove their SIM card just yet...

The GSM is 2G only, no 3G.

Well my buddy has a AT&T sim card that i put in my TP2 but it did not work. I switch the phone to GSM only but it did not pick up a network. I also put that sprint sim on his phone but it had no network either. According to the manual its lock from going to a gsm network on the USA.

gface2k said:
Well my buddy has a AT&T sim card that i put in my TP2 but it did not work. I switch the phone to GSM only but it did not pick up a network. I also put that sprint sim on his phone but it had no network either. According to the manual its lock from going to a gsm network on the USA.
Click to expand...
Click to collapse
Hopefully a custom ROM can unlock the ability to use GSM networks in the United States!

gface2k said:
Well my buddy has a AT&T sim card that i put in my TP2 but it did not work. I switch the phone to GSM only but it did not pick up a network. I also put that sprint sim on his phone but it had no network either. According to the manual its lock from going to a gsm network on the USA.
Click to expand...
Click to collapse
good to know.
I read in the manual that it was not usable on US GSM networks too, but I assumed that was because they never intended for you to remove the Sprint SIM card, so of course the Sprint SIM card wouldn't work domestically.
So it seems the Sprint phone can be unlocked for GSM just like the Telus phones, but I haven't read of any success getting GSM 3G to work w/ an unlock code.

xnifex said:
The GSM is 2G only, no 3G.
Click to expand...
Click to collapse
d'oh, missed this....
What about EDGE?

Check the specs, if it said gsm 850,1900 it should be able to use with in the US. Just have to sim unlock it first in order to use.

Oh SoS said:
d'oh, missed this....
What about EDGE?
Click to expand...
Click to collapse
EDGE is 2G

Unlock Verizon Nexus for T-Mobile?

So I'm thinking of buying a Verizon Galaxy Nexus.
I know it has a sim tray so i'm wondering if it can be unlocked for T-Mobile.
Any help would be appreciated.

djphooka said:
So I'm thinking of buying a Verizon Galaxy Nexus.
I know it has a sim tray so i'm wondering if it can be unlocked for T-Mobile.
Any help would be appreciated.
Click to expand...
Click to collapse
Why wouldn't you buy the GSM version?

It wont work. Different technologies.

jhernand1102 said:
Why wouldn't you buy the GSM version?
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Click to collapse
Because that would make sense.

Yea, It's just that the guy told me it has a sim tray so i figured i would post here to find out.
Anyone know where I can get the GSM version?
I don't want to pay $500 but ...
Thanks all

Try Negri Electronics
Sent from my Transformer TF101 using xda premium

djphooka said:
Yea, It's just that the guy told me it has a sim tray so i figured i would post here to find out.
Anyone know where I can get the GSM version?
I don't want to pay $500 but ...
Thanks all
Click to expand...
Click to collapse
Sim tray maybe but the vzw one is cdma and the GSM one is...well..GSM.
Different technologies! Not compatible.

I have the Verizon phone and yes it does have a SIM card but it uses different radios. Verizon uses CDMA/LTE and T-Mobile uses GSM so you can put whatever SIM card you want in there but since it uses different radios it won't physically be able to talk to T-Mobile (or any GSM carrier's towers)

btw, what happen if you travel away USA in a country without CDMA?.
At least, the CDMA iPhone have a simcard tray but it's locked until your operator wants.

jairmoreno said:
btw, what happen if you travel away USA in a country without CDMA?.
At least, the CDMA iPhone have a simcard tray but it's locked until your operator wants.
Click to expand...
Click to collapse
Starting with Verizon's 4G LTE phones they all require SIM cards. They were also used in 3G global phones (my old blackberry and droid pro had them) but the CDMA Galaxy Nexus isn't global so you'd just SOL.

well.
nope. it won't work cause it's not CDMA...

djphooka said:
So I'm thinking of buying a Verizon Galaxy Nexus.
I know it has a sim tray so i'm wondering if it can be unlocked for T-Mobile.
Any help would be appreciated.
Click to expand...
Click to collapse
@[email protected] can't believe people are asking this question. The phone has been out for over 3 months now.

Besides, the SIM card slot is specifically for LTE... as in, the SIM card is an LTE SIM card. LTE, not HSPA+.
I can only think, because the AT&T (HSPA+) model would be more prolific among sellers, that you'll have a better time finding a better price than a Verizon (LTE) one.

jairmoreno said:
btw, what happen if you travel away USA in a country without CDMA?.
Click to expand...
Click to collapse
Then you have no service. Grab a cheap GSM phone and pre-paid SIM.

Try the yellow or the sky blue Galaxy Nexus. Those ones will work on both Verizon and T-Mobile.

Thats odd cause I have done it before
nodstuff said:
Sim tray maybe but the vzw one is cdma and the GSM one is...well..GSM.
Different technologies! Not compatible.
Click to expand...
Click to collapse
Back when verizon did both GSM and CDMA I had a verizon phone that I got to work on tmobile. I think it might have been a windows phone, honestly it was a while ago. I had to pay for a network unlock code and patch a radio or something....anyway, just wanted to say that it is in fact possible. My phone did brick in about two months, but that might have been from getting it wet...anyway...Good luck!

derigoagin said:
Back when verizon did both GSM and CDMA I had a verizon phone that I got to work on tmobile. I think it might have been a windows phone, honestly it was a while ago. I had to pay for a network unlock code and patch a radio or something....anyway, just wanted to say that it is in fact possible. My phone did brick in about two months, but that might have been from getting it wet...anyway...Good luck!
Click to expand...
Click to collapse
Total non sequitur. The phone in question must have been an old "world phone". The Verizon Galaxy Nexus never had any GSM radio whatsoever.
Also you bumped a 2 year old thread.
Sent from my Nexus 5 using Tapatalk

weirddan455 said:
Starting with Verizon's 4G LTE phones they all require SIM cards. They were also used in 3G global phones (my old blackberry and droid pro had them) but the CDMA Galaxy Nexus isn't global so you'd just SOL.
Click to expand...
Click to collapse
For the CDMA GNex you would need either a CDMA or neutral carrier/MVNO (such as StraightTalk, Tracfone, etc.). I have a CDMA ex-VZW GNex (now running Unlegacy-Android 7.1) that I am taking to Tracfone (replacing a Tracfone feature phone) because Tracfone uses a mix of carrier towers (depending on location, either T-Mobile or VZW). My current feature phone uses T-Mobile towers - because I am bringing a CDMA phone under BYOP, I have to ask the carrier (Tracfone, in this case) to create a custom SIM Kit for the brought phone, and thus have to communicate the IMEI and MEID of the incoming phone (this information is in the phone under Settings). Yes - this also applies to lifeline feature phones supplied by Tracfone/Safelink (if Safelink supplied the phone, Tracfone is your MVNO). If you want a GSM version of the Galaxy Nexus, you would want the maguro (the Galaxy Nexus in AT&T Mobility or T-Mobile guise); because GSM is more popular overseas, they tend to get exported compared to CDMA or W-CDMA (Verizon or Sprint, respectively).

[Q] Help with Verizon Nexus converted to Prepaid Please?!?

Hey guys I am going to try and make this quick and please forgive me I am new to the Nexus. I have been all over this forum and others e.g. XDA, Android Central etc. I have gotten a lot of different info. about how to switch my Verizon Nexus to Prepaid. However I just bought this phone at my bosses pawn shop w/out the SIM card and the guy who sold the phone said it did have service @ one time. In device info the network is unknown, Mobile Network is unknown:0, no phone number, service stat. out of service, MIN: unknown, but does have the MEID & IMEI numbers. I know no SIM card has a lot to do with this info. Verizon will not unlock it for me so I was wondering what I needed to do to be able to unlock this bad boy. I have root and JBSourcery flashed and loving it I might add. Do I just need to get the SIM card so when I use the # and number keys to unlock it the phone will not tell me "mobile network not available" Or is there another way that someone would be willing to help me with please. I will keep reading to see what I can find but any info would be greatly appreciated! Thanks guys and I look forward to hearing some ideas.

Are u trying to go to a gsm network? Is so u can't. Technically u can't go to no other network. CDMA device are ment to stay on the original network. And if u are trying to go t a gsm network you are waisting your time. Only reason the Verizon nexus has a sim card is for 4g lte. Cell service only works with CDMA.
Sent from my Galaxy Nexus using xda premium

Esteway.619 said:
Are u trying to go to a gsm network? Is so u can't. Technically u can't go to no other network. CDMA device are ment to stay on the original network. And if u are trying to go t a gsm network you are waisting your time. Only reason the Verizon nexus has a sim card is for 4g lte. Cell service only works with CDMA.
Sent from my Galaxy Nexus using xda premium
Click to expand...
Click to collapse
Right I know that from what I have been reading. I talked to TMobile and they said the phone is compatible with them and they offer the SIM card as well. I was going to go go Verizon today and get the SIM card and try to get the phones info In their system. That way I can USD the dial pad and try to unlock it and use it on their prepaid plan if I have to. I am not picky as far as what company's prepaid I want to use really I just don't want a contract.

you cannot use the verizon galaxy nexus on a tmobile network
CDMA is not GSM.
there is a sim slot on the vzw nexus, but it is for LTE only. voice still uses CDMA.

Zepius said:
you cannot use the verizon galaxy nexus on a tmobile network
CDMA is not GSM.
there is a sim slot on the vzw nexus, but it is for LTE only. voice still uses CDMA.
Click to expand...
Click to collapse
I know that after reading a little more into it. I got the SIM card and now it is picking up verizon network. So really I am SOL with this phone unless I get a contract is that correct? Forgive my lack of knowledge of CDMA etc. I am working on trying to get there by reading more and more about it.

alidust42 said:
I know that after reading a little more into it. I got the SIM card and now it is picking up verizon network. So really I am SOL with this phone unless I get a contract is that correct? Forgive my lack of knowledge of CDMA etc. I am working on trying to get there by reading more and more about it.
Click to expand...
Click to collapse
Yes your SOL.
Sent from my Galaxy Nexus using xda premium

Aaahhh!!! Got to love Verizon!! Thanks for your help.
Sent from GNex Flashed w/JBSourcery & Tapatalk.

Zepius said:
you cannot use the verizon galaxy nexus on a tmobile network
CDMA is not GSM.
there is a sim slot on the vzw nexus, but it is for LTE only. voice still uses CDMA.
Click to expand...
Click to collapse
hI GUYS i AM FROM India, Can i change my galaxy nexus verizon [having sim slot 4g lte] to my home CDMA networks ?Plzzzzzz reply ASAP.................!

Samsung Galaxy S 4 LTE SPH-L520 question

Ok so I was trying to unlock this samsung s 4 mini lte SPH-L520 but it seems like it's the only model of S 4 mini that i can't find an unlock code for, is this phone un-unlockable? and what is the difference between the SPH-L520 and all the other samsun s 4 mini?

Well one rather big difference of the Sprint S4 mini (SPH-L520) versus the international models (GT-I919X) is that it uses CDMA networks rather than GSM. I am not sure if you can use it on GSM networks with a sim card. I do, however, know that the Verizon version (SCH-I435) which is also CDMA can be unlocked and used on GSM networks. I used the app RegionLock Away from the play store (and here on xda) to unlock and it worked with an AT&T sim card.
Sent from my SCH-I435 using xda app-developers app

I hope your help
shadowanubis said:
Ok so I was trying to unlock this samsung s 4 mini lte SPH-L520 but it seems like it's the only model of S 4 mini that i can't find an unlock code for, is this phone un-unlockable? and what is the difference between the SPH-L520 and all the other samsun s 4 mini?
Click to expand...
Click to collapse
Friend also want to unlock the samsung galaxy s4 mini sph-l520, tell me if you managed to do so and if the method by region lock app I run away and if you could explain to me hcer to also do so. I hope your answer and thanks for the help in advance

sprint sph-l520 NOT a worldphone
I talked with the Sprint folks.
The Sprint variant has a sim tray that is just for the data sim (UICC card) not a GSM sim. And it is NOT a worldphone.
So even if you put a GSM sim in it, the radio is not looking for GSM towers (only CDMA).
But the Verizon version IS a world phone, which is why "wiisixtyfour" was able to unlock his.
That being said, since Samsung has made several versions that do have this capability, it seems possible that if someone modifies these things it could work:
-Modified sprint radio to receive GSM radio frequencies/signals (maybe copying the Verizon one?)
-Modified PRL to look for GSM towers
-Modified SIM tray communication to recognize not just DATA sims but GSM sims as well
I have no idea how to do any of these. But would love it if someone a lot smarter than me can take a stab at it. :cyclops:

supermaxkato said:
I talked with the Sprint folks.
The Sprint variant has a sim tray that is just for the data sim (UICC card) not a GSM sim. And it is NOT a worldphone.
So even if you put a GSM sim in it, the radio is not looking for GSM towers (only CDMA).
But the Verizon version IS a world phone, which is why "wiisixtyfour" was able to unlock his.
That being said, since Samsung has made several versions that do have this capability, it seems possible that if someone modifies these things it could work:
-Modified sprint radio to receive GSM radio frequencies/signals (maybe copying the Verizon one?)
-Modified PRL to look for GSM towers
-Modified SIM tray communication to recognize not just DATA sims but GSM sims as well
I have no idea how to do any of these. But would love it if someone a lot smarter than me can take a stab at it. :cyclops:
Click to expand...
Click to collapse
Please do

SPH-L520 can run on GSM carrier!
Yes, this is what Sprint told me last summer. But it's incorrect. I have a Sprint S4 mini that works on both Sprint and a TMobile MVNO. Voice, text, data (in refarmed area). Unlocking GSM can be done!
supermaxkato said:
I talked with the Sprint folks.
The Sprint variant has a sim tray that is just for the data sim (UICC card) not a GSM sim. And it is NOT a worldphone.
So even if you put a GSM sim in it, the radio is not looking for GSM towers (only CDMA).
But the Verizon version IS a world phone, which is why "wiisixtyfour" was able to unlock his.
Click to expand...
Click to collapse

avgtuhm, that's only true if you can explain how it was done and it can be replicated.

What does #0111*NETWORKCODE accomplish?
First off, my apologies if I am in error about GSM functioning on my phone.
I will explain what I've done with my Sprint S4 mini and maybe you/someone can tell what is happening. But this is why I thought GSM was/is working on my phone, until supermaxkato questioned this. (Note: I am not a developer.)
My S4 mini is active with Sprint. If I put a GSM SIM in it, of course it does nothing. Try to make a phone call and I get an automated message that it cannot be completed. But after doing the following, I can make calls, send texts, use mobile data.
I powered on with GSM SIM in phone. Entered #0111*NETWORKCODE for my phone in the dialer and hit call button. After this voice, text, data work. However, phone shows "Invalid SIM" in the notifications and the calls and texts come from my Sprint phone vs. the number associated with my GSM SIM. (I didn't realize this until testing last night.)
So did the code just make it so the SIM tray ignores the GSM SIM and functions on Sprint network? (again.. before entering the codes, no calling/texting/data worked with GSM SIM in the phone)
Same results on 2 activated Galaxy phones. Unsuccessful on non-activated S4 Mini.
I am not tech savvy but if anyone wants me to check something on my phone, I will try to get you the information. (I do not have a rooted/modified phone.)
Again, sorry for my mistaken report of success. In retrospect, I should have known it couldn't be that easy.
(Earlier this year, I WAS told by a developer in Colorado that there has been limited success with Sprint S4 minis being unlocked for GSM both internationally and domestic. And a Sprint rep recently told me that this phone can be unlocked internationally for GSM, although I see that it is not on their list of unlockable phones.)

mobile tower problem
mobile network is disabled in my phone samsung galaxy s4 mini sprint spark meid:99000437598028
how to fix this

[Q] Straight talk?

Has anyone used this phone with straight talk? do you need to unlock the phone or will their sim card work instantly?

I'm using my AT&T Optimus G Pro with Straight Talk. Works great. If it's a GSM phone you can use Straight Talk.
Sent from my LG-E980 using Tapatalk

No. Their sim card will not work unless you have the phone network unlocked.

droidzika said:
I'm using my AT&T Optimus G Pro with Straight Talk. Works great. If it's a GSM phone you can use Straight Talk.
Sent from my LG-E980 using Tapatalk
Click to expand...
Click to collapse
Yes mine is the AT&T version as well, did you need to unlock your phone? I have seen some saying you do and some saying you don't, but most people aren't on it it's just their thoughts. Since you are on, did you?

I didn't have to..that's the beauty of GSM phones. Most GSM doesn't necessarily have to be unlocked because most use the same frequencies. Also, I could use my Sim card on a T-Mobile phone, if it was GSM.
Sent from my LG-E980 using Tapatalk

1117
I bought mine already unlocked so I have had no issues whatsoever using Straight Talk. Love getting 4G for 45 a month.

Quick tip if you use straight talk all you need to order i straight talk att sim card. That gives you full 4g... If you use the straight talk t mobile sim you'll only get hspa +. If you have the t mobile sim then you'll need to unlock the phone and then set the phone up for T-Mobile network.
Add there is no need to unlock the phone.
Sent from my LG-E980 using XDA Premium 4 mobile app

I have the AT&T G Pro using Straight Talk. I had to network unlock mine. I verified this by putting the ST AT&T sim in before I unlocked it just to be sure and it did give me the "Invalid Sim" error. So this phone IS network locked. AT&T's provisioning is different than Straight Talks. So just because it's an AT&T phone and AT&T compatible sim doesn't necessarily mean it will just accept the sim without network unlocking.

I also have the AT&T G pro. ordered the at&t micro sim from ST and inserted and it worked without having to unlock the network lock. In fact on all of the AT&T branded phones i have used i have never ever had to unlock to use a ST sim card that used the at&t network.
In fact if you go to this link http://www.straighttalk.com/wps/portal/home/shop/sims
it will ask you if your phone is t-mob or AT&T and as long as you get the right sim for your phone, you should not have to unlock it.
I did have to edit my apn and follow the instructions in the thread below to get mms working
http://forum.xda-developers.com/showthread.php?t=2761126

I didn't have to unlock my E980, as I used a AT&T compatible Straight Talk SIM. I get full LTE no troubles, but you have to fool with APNs to get MMS, as with most third-party carriers on other carrier's phones.