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

[Q] Verizon model - Sim Unlock Possible

I am interested in getting the Verizon model for how cheap it is. Is it possible to sim unlock the Verizon model to use on T-mobile?
I know someone is offering a boot unlocks and regular sim unlocks with GSM models. Not sure if it will work with the CDMA model.
Insights?

He said he can unlock Verizon locked Plays as well.

He just said on the 12th page post of his unlocking forum that the GSM baseband isnt supported.
"Originally Posted by mightytharos
Hello,
I am still wondering if the root process allows the XPERIA PLAY from Verizon (cdma version) to be used as a World phone (by putting a sim card in the slot). I'd appreciate if you guys can tell me if this is possible.
Thank you
I think @netorino is right, baseband doesnt allow gsm networks."
I am just asking and double making sure cause I kept seeing people using the word "unlocked". And I know unlocked has multiple meanings. (boot, sim,ect)
I come from HD2 XDA.

joeminati said:
I am interested in getting the Verizon model for how cheap it is. Is it possible to sim unlock the Verizon model to use on T-mobile?
I know someone is offering a boot unlocks and regular sim unlocks with GSM models. Not sure if it will work with the CDMA model.
Insights?
Click to expand...
Click to collapse
Don't quote me...but I think you would be better off getting the AT&T play as its gsm as is T-mob, while Verizon is cdma.
Sent from my R800x using xda premium

joeminati said:
I am interested in getting the Verizon model for how cheap it is. Is it possible to sim unlock the Verizon model to use on T-mobile?
I know someone is offering a boot unlocks and regular sim unlocks with GSM models. Not sure if it will work with the CDMA model.
Insights?
Click to expand...
Click to collapse
Quick answer? NO, absolutely not.
Longer answer?
Basically the SIM Slot seems to be physically uncoupled from the chassis. Further, the chipset that would be running the GSM is replaced with one for the CDMA. Whether it can function as both is a question, but the chip is actually different (from my teardown to look, the chip numbering is different from the tech/repair manuals).
I would, in general, assume that no phone that is on Verizon (unless it specifically says "World phone" or "World Edition") can be used on T-Mobile. CDMA vs GSM silliness. Different frequencies, different methods, different technologies.
So while the bootloader unlcok could work for the CDMA model, the SIM-unlock wouldn't.
Interestingly enough, there are still traces of the GSM code in the phone's diagnostic menus though.

i have a friend that has a phone repair shop in my hometown. i called him when i found a play that is cdma thru verizon. it is a world phone and has a sim card slot. he said that as long as its a world phone version it can be unlocked for gsm use in the united states. idk im getting one tonight and im gonna tinker with it and once i get it all going i will let everyone know on here if it can in fact be unlocked for gsm use in the US.

Well???
darkkarny717 said:
i have a friend that has a phone repair shop in my hometown. i called him when i found a play that is cdma thru verizon. it is a world phone and has a sim card slot. he said that as long as its a world phone version it can be unlocked for gsm use in the united states. idk im getting one tonight and im gonna tinker with it and once i get it all going i will let everyone know on here if it can in fact be unlocked for gsm use in the US.
Click to expand...
Click to collapse
Well did your tinkering work?

starboi4eva said:
Well did your tinkering work?
Click to expand...
Click to collapse
well turns out that the phone ended up not having a sim card slot and the person that i was supposed to purchase it from had no clue about anything. i did not end up buying this device. sorry!!!!

This was stated years ago, the R800x has a sim card slot but it is turned off on a hardware level. It is a non-functioning sim slot.

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?
Click to expand...
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).

Free unlock method.

Edit: this method works for everyone it seems. SOME HAVE REPORTED SLOWER T-MOBILE DATA SPEEDS AFTER APLLYING THIS UNLOCK. This has only been reported a few times and it seems like flukes. I however, nor the OP in the linked thread are responsible for wjat YOU chose to do to your device. You have been warned.
http://forum.xda-developers.com/showthread.php?p=34661189
Unlock for 7105 from diagnostic screen.
Trying it now but dont have a sim to check with. Well I have my old verizon one but dont know if it will work.

_Dennis_ said:
http://forum.xda-developers.com/showthread.php?p=34661189
Unlock for 7105 from diagnostic screen.
Trying it now but dont have a sim to check with. Well I have my old verizon one but dont know if it will work.
Click to expand...
Click to collapse
What was the default value of "Perso SHA256 "....I changed mine to off but forgot to check the original value...original value should be in Perso SHA256 Flag info

Seemed to work with verizon sim. No longer get the input sim unlock number, but obviously no signal.

hkfan said:
What was the default value of "Perso SHA256 "....I changed mine to off but forgot to check the original value...original value should be in Perso SHA256 Flag info
Click to expand...
Click to collapse
Not sure already changed mine. I assume [1] or on

_Dennis_ said:
Seemed to work with verizon sim. No longer get the input sim unlock number, but obviously no signal.
Click to expand...
Click to collapse
Phone wont even get GSM signal ? I thought this phone does support 1900 Mhz which verizon also uses.

hkfan said:
Phone wont even get GSM signal ? I thought this phone does support 1900 Mhz which verizon also uses.
Click to expand...
Click to collapse
It got a signal. But could not pick up carrier or anything just had signal and said searching in notification bar.
But verizon is CDMA so it did not supprise me.

I see that the LTE radio bands are in there, no surprise there. But I also see WCDMA radio bands too. Does that mean that our Galaxy Note 2 have WCDMA radio too? Or is this just an firmware that Samsung uses across all Galaxy Note 2 devices?

I need to try this I have a at&t sim card.
Sent from my SGH-T889 using xda premium

JaguarXT said:
I see that the LTE radio bands are in there, no surprise there. But I also see WCDMA radio bands too. Does that mean that our Galaxy Note 2 have WCDMA radio too? Or is this just an firmware that Samsung uses across all Galaxy Note 2 devices?
Click to expand...
Click to collapse
I think we have CDMA also....not that it does much for us as verizon and sprint require the imei to be loaded into their systems.
WCDMA != CDMA by the way. WCDMA is 3G/4G GSM (aka UMTS)
CDMA is a competitor to GSM. It is used by mainly North American and Japanese/Chinese cell phone companies.
I know Verizon and Sprint in the US and AU in Japan use CDMA. Most of the world uses GSM.

All though thinking about it while we may have the CDMA radio, assuming it is the same chip as the GSM and LTE radio then they may have just not sokdered the connections. Seen that before with FM radios built into the bluetooth chip on the Atrix 4G

Which of the bands are our 4G?
Love learning.

JaguarXT said:
Which of the bands are our 4G?
Love learning.
Click to expand...
Click to collapse
Our 4G is UMTS band 4 (1700/2100) same as our 3G. We dont have LTE yet so no *true* 4G

Sweet.
Thank you.

No problems. This kinda stuff is my hobby. Maybe some day I can get a job at a cell phone company as a technician or something.

I can confirm this works, but I could not get data. I got signal and a carrier name with both an AT&T sim and a Straight Talk (AT&T) sim. It would not load APNs, and I don't have the APN for regular AT&T so I tried with the Straight Talk, put in their APN and still got no data. Neither sim is active currently. It did allow me to call 611 on both sims.

dj_spore said:
I can confirm this works, but I could not get data. I got signal and a carrier name with both an AT&T sim and a Straight Talk (AT&T) sim. It would not load APNs, and I don't have the APN for regular AT&T so I tried with the Straight Talk, put in their APN and still got no data. Neither sim is active currently. It did allow me to call 611 on both sims.
Click to expand...
Click to collapse
If neither sim is active then I dont think it will allow data. Not sure though.

dj_spore said:
I can confirm this works, but I could not get data. I got signal and a carrier name with both an AT&T sim and a Straight Talk (AT&T) sim. It would not load APNs, and I don't have the APN for regular AT&T so I tried with the Straight Talk, put in their APN and still got no data. Neither sim is active currently. It did allow me to call 611 on both sims.
Click to expand...
Click to collapse
Just found my roommates active AT&T sim, tried it, and still no data. I put in the APN found here: http://forum.xda-developers.com/showthread.php?t=1684711...
Phone calls work just fine...

dj_spore said:
Just found my roommates active AT&T sim, tried it, and still no data. I put in the APN found here: http://forum.xda-developers.com/showthread.php?t=1684711...
Phone calls work just fine...
Click to expand...
Click to collapse
Hum...I need to get my hands on a microSIM. I have some experience playing with APNs from my days in Japan.

It didnt work for me
Sent from my SGH-T889 using xda premium

Thank you for sharing. It works for me. I tried it with my brother att sim. I was able to make and receive phone call with no problem.

Tmobile S4, Verizon sim

Has anyone accomplished this? Running a Verizon sim in a unlocked Tmobile S4?

i am curious about this as well. i dont think the lte bands are the same though

Verizon is LTE 18. Not worried about that too much. I believe 3g will be all it will get

While a Verizon S4 will work with T-Mobile, I don't think a Verizon S4 will work with T-Mobile. Unless you can somehow enable CDMA radios, which technically don't exist in the gsm variants.

serio22 said:
While a Verizon S4 will work with T-Mobile, I don't think a Verizon S4 will work with T-Mobile. Unless you can somehow enable CDMA radios, which technically don't exist in the gsm variants.
Click to expand...
Click to collapse
All S4's are actually gsm, including Sprint and Verizon. Both are unlock able and able to use on other carriers, so CDMA isn't really necessary

ShinySide said:
All S4's are actually gsm, including Sprint and Verizon. Both are unlock able and able to use on other carriers, so CDMA isn't really necessary
Click to expand...
Click to collapse
Yes I know many Sprint and Verizon smartphones are world phones, but Verizon still uses CDMA. So wouldn't you will still need a CDMA capable device if you plan to use it with Verizon? If it was the other way around, that's a different story

serio22 said:
Yes I know many Sprint and Verizon smartphones are world phones, but Verizon still uses CDMA. So wouldn't you will still need a CDMA capable device if you plan to use it with Verizon? If it was the other way around, that's a different story
Click to expand...
Click to collapse
Yeah but that's why I was telling you.... if a Verizon S4 is gsm and not CDMA, why wouldn't a gsm work on Verizon if the same phone is gsm?
It's probably completely possible. Device wise.... the big problem would be getting Verizon to allow it on the network if it did

Well, i can't unlock the damn thing anyways. Tried 3 times to avail.
Just as soon as I Odin back the NH7 modem i loose the unlock. Very weird.

ShinySide said:
Yeah but that's why I was telling you.... if a Verizon S4 is gsm and not CDMA, why wouldn't a gsm work on Verizon if the same phone is gsm?
It's probably completely possible. Device wise.... the big problem would be getting Verizon to allow it on the network if it did
Click to expand...
Click to collapse
that's because it has both gsm and CDMA radios, while T-Mobile's does not. At least as far as we know. I think the gsm portion is there for when you travel for edge and HSPA connectivity and of course also for the use of LTE. If you insert a gsm sim card into a Verizon 'global' gsm/CDMA device, it will display a message "switching to Global mode," enabling full gsm mode. You still need a CDMA capable phone for activation on their network AFAIK.
The Sickness said:
Well, i can't unlock the damn thing anyways. Tried 3 times to avail.
Just as soon as I Odin back the NH7 modem i loose the unlock. Very weird.
Click to expand...
Click to collapse
I would give it a shot but don't have a different sim card to test

Don't sweat it. Im keeping it.

I tried my unlocked S4 with my girlfriend's Verizon SIM from her S5 and couldn't get it to connect to anything. I tried every different network mode I had available and couldn't get it to see any sort of a signal. I'm pretty sure I also tried to manually search for a network and saw Verizon as an option, but didn't end up getting anything out of it.

Punkamonk said:
I tried my unlocked S4 with my girlfriend's Verizon SIM from her S5 and couldn't get it to connect to anything. I tried every different network mode I had available and couldn't get it to see any sort of a signal. I'm pretty sure I also tried to manually search for a network and saw Verizon as an option, but didn't end up getting anything out of it.
Click to expand...
Click to collapse
It probably picked up the LTE signal, since it is gsm