Would ATT sim inside a verizon S4 still have LTE? - Verizon Samsung Galaxy S 4

So if I put a ATT sim into the verizon galaxy s4 that I unlock. will LTE work?

No because Verizon uses different radio frequencies for lte
Sent from my Galaxy S IV

rayoubi said:
So if I put a ATT sim into the verizon galaxy s4 that I unlock. will LTE work?
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Click to collapse
What baseband/modem are you
I'm running a MK2 Knox s4 Verizon I 545,
And I'm getting att LTE via net10 and true t-mobile Directly through A tmo sim card.
---------- Post added at 02:08 PM ---------- Previous post was at 01:57 PM ----------
Check this out
http://forum.xda-developers.com/showthread.php?t=2678984

greatnesstx said:
No because Verizon uses different radio frequencies for lte
Sent from my Galaxy S IV
Click to expand...
Click to collapse
It will work, Verizon has enabled band 4 on our phones, T-Mobile only uses that, att also uses that plus 17
Sent from my HTC6600LVW using XDA Premium 4 mobile app

Related

Verizon s4 unlocked for at&t?

Will verizon s4 work on at&t. Will i be able to get 4g? Thanks
4G as in H+? Then yes.
No, they have different radios. GSM (AT&T) vs CDMA (Verizon)
JaeKay, the Verizon S4 had both radios. I have personally used an AT&T SIM and made calls and gotten H+. So to the OP, YES YOU CAN. You just need to add the APN info after you put in the new SIM card.
Sent from my SCH-I545 using Tapatalk 4 Beta
Silentgray said:
JaeKay, the Verizon S4 had both radios. I have personally used an AT&T SIM and made calls and gotten H+. So to the OP, YES YOU CAN. You just need to add the APN info after you put in the new SIM card.
Sent from my SCH-I545 using Tapatalk 4 Beta
Click to expand...
Click to collapse
Need to root for APN change/add ? or possible to add new APN without rooting?
I was rooted but it should not be a requirement. Just need a non Verizon SIM in the phone.
Sent from my SCH-I545 using Tapatalk 4 Beta
A co worker of mine pulled a new S4 out of box and put in his at&t SIM sure enough it worked. so non rooted works too.
kpa2727 said:
A co worker of mine pulled a new S4 out of box and put in his at&t SIM sure enough it worked. so non rooted works too.
Click to expand...
Click to collapse
Wondering, does this mean a Tmobile sim card will work as well?
Tmobile
kainu7 said:
Wondering, does this mean a Tmobile sim card will work as well?
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Click to collapse
One of my friends said he tried a T-mobile sim and it didn't work (on a non-rooted phone).
Silentgray said:
I was rooted but it should not be a requirement. Just need a non Verizon SIM in the phone.
Sent from my SCH-I545 using Tapatalk 4 Beta
Click to expand...
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Thank you for reply.
ChapterOmega said:
One of my friends said he tried a T-mobile sim and it didn't work (on a non-rooted phone).
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Click to collapse
I have both a TMO sim and and ATT sim, and I got EDGE with TMO. No H/H+ right now on TMO because very few areas are on 1900. Our version of the S4 does not have the ability to use H/H+ on the AWS frequencies, just LTE.

[Q] Can I use the Tmobile S4 on Verizon?

Is there any way to use an unlocked tmobile s4 on verizon???? Can you flash a certain modem to make it work?
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chubbrock said:
Is there any way to use an unlocked tmobile s4 on verizon???? Can you flash a certain modem to make it work?
Sent from my SCH-I535 using Tapatalk 2
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This is not 100%, but just my understanding. The T-mobile version shouldn't have the radio frequencies , or even the same technology (gsm vs. CDMA) as the verizon S4. Dont think there is any amount of software modifications that an allow it either.
No, you cannot use it. It lacks the hardware radio.
Sent from my SCH-I545 using Tapatalk 4 Beta
Damn. Didn't think so but was hoping so!
Sent from my SCH-I535 using Tapatalk 2
It's possible. %100. I'm going to start working on it now that I got my VZ S4 from work...(I have tmo for my personal phone). Please....PLEASE....PLEASE!!! let's not have anyone else say "it's not possible". I'm begging you. Before you spout off about this that or the other thing...read up on the phone. Learn about frequencies, modulation, SDRs...etc.
RavenII said:
It's possible. %100. I'm going to start working on it now that I got my VZ S4 from work...(I have tmo for my personal phone). Please....PLEASE....PLEASE!!! let's not have anyone else say "it's not possible". I'm begging you. Before you spout off about this that or the other thing...read up on the phone. Learn about frequencies, modulation, SDRs...etc.
Click to expand...
Click to collapse
Its possible but not probable because VZW is still using CDMA so is Sprint and I do not think the TMo/ATT/GE version have the baseband nor the radios to support CDMA. Once LTE band 4 is enabled and VoLTE is prevalent then the phone can be seemless across carriers.
I know it work the other way around
I put a prepaid att sim card in my ZVW s4 and it worked! As the vzw s4 comes stock as a world phone and can be used on gsm networks. Without unlocking. So if you unlock your TM s4 you should be able to pop in a vzw 4g sim and be OK?
I don't think you will have 4G though if you got a buddy with a vzw 4g phone grab his sim and try it after you unlock.
Att - gsm
T-Mobile - gsm
Sprint - cdma
Verizon - cdma / gsm 4g lte
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---------- Post added at 02:35 PM ---------- Previous post was at 02:16 PM ----------
img.tapatalk.com/d/13/07/12/asy8u7yt.jpg
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Samstealth7 said:
I know it work the other way around
I put a prepaid att sim card in my ZVW s4 and it worked! As the vzw s4 comes stock as a world phone and can be used on gsm networks. Without unlocking. So if you unlock your TM s4 you should be able to pop in a vzw 4g sim and be OK?
I don't think you will have 4G though if you got a buddy with a vzw 4g phone grab his sim and try it after you unlock.
Att - gsm
T-Mobile - gsm
Sprint - cdma
Verizon - cdma / gsm 4g lte
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---------- Post added at 02:35 PM ---------- Previous post was at 02:16 PM ----------
img.tapatalk.com/d/13/07/12/asy8u7yt.jpg
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Click to expand...
Click to collapse
Again the Tmo/ATT/GE do not support the LTE bands on VZW/SPRINT nor do they support CDMA/EVDO.
The VZW variant should work on any GSM network with a sim swap and APN switch but LTE will be limited or not available.
Right so he won't get 4g/4g lte
But should be OK on 3g after the apn settings are configured I believe. Hope this helps
I tryed to post an image or link but I can't yet cuz I'm still a noob here at xda sorry
chubbrock said:
Is there any way to use an unlocked tmobile s4 on verizon???? Can you flash a certain modem to make it work?
Sent from my SCH-I535 using Tapatalk 2
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Click to collapse
You CAN, but that does mean you'll want to.
T-Mobile utilizes 2 spectrums for HSPA+ and LTE. 1700/2100 for both. Without access to both spectrums the device will not receive data. Best you'll get is EDGE, which is only from interoperability with AT&T.
There are not interoperability standards for 4G LTE so you couldn't use this on AT&T LTE either.
So yes you can do it, but you won't like the service.
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Rebel908 said:
You CAN, but that does mean you'll want to.
T-Mobile utilizes 2 spectrums for HSPA+ and LTE. 1700/2100 for both. Without access to both spectrums the device will not receive data. Best you'll get is EDGE, which is only from interoperability with AT&T.
There are not interoperability standards for 4G LTE so you couldn't use this on AT&T LTE either.
So yes you can do it, but you won't like the service.
Sent from my SCH-I545 using xda premium
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Click to collapse
You cannot use the T-Mobile S4 on Verizon, period. It doesn't support CDMA or LTE band 13 which are the only bands that Verizon currently offers service.
Now if you had a Verizon S4 you could use that on T-Mobile since it supports HSPA on the PCS band and LTE on band 4 which are both used by T-Mobile for 3G and 4G but that isn't what the original poster asked about.
RavenII said:
It's possible. %100. I'm going to start working on it now that I got my VZ S4 from work...(I have tmo for my personal phone). Please....PLEASE....PLEASE!!! let's not have anyone else say "it's not possible". I'm begging you. Before you spout off about this that or the other thing...read up on the phone. Learn about frequencies, modulation, SDRs...etc.
Click to expand...
Click to collapse
The question is will a t-mobile S4 work on VZW. The answer is no, it will not. Not unless that MDM9215 spontaneously changes into an MDM9615.
Sent from my Nexus 7 using Tapatalk HD
Can you guys please read the data sheets on the APQ8064T, MDM9215M, and WTR1605L...then come back and tell us how it won't work.
Edit: Hint....the 9215 is what is inside the Nexus 4....which I also own....running LTE on T-Mobile...
Yes, but can you use that Nexus 4 on any cdma carrier?
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najaboy said:
Yes, but can you use that Nexus 4 on any cdma carrier?
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Click to expand...
Click to collapse
With the right hacks...yes. It's possible man.
This article (from QComm) states that the 9615 is capable of CDMA
This link shows very little difference between the 9615 and the 9215...
Again, I implore you all to be diligent when it comes to exploring new ideas...don't just dismiss something as not possible. There's no such thing.
Edit: Just incase the second link to the PDF doesn't work or is REALLY slow...I've attached the document to the post. Also, I took the time to spoon feed someone the info in another post linked here ....
Edit 2: Nevermind, the PDF is 2.5MB...won't let me attach it.
You may want to do a bit more research on the MDM9215. It does NOT support CDMA. It is only used in UMTS/GSM + LTE devices. CDMA support is what differentiates the MDM9615 from its sibling. This was explicitly noted by Qualcomm at UPLINQ 2012 as part of their QCMB API presentation.
So once again I will reiterate that a T-Mobile S4 lacks the necessary hardware to operate on Big Red. Furthermore, it is a simple matter to note that the MDM9215's commercial availability is limited to UMTS/GSM + LTE devices.
No amount of mad hacking skillz can overcome that hardware limitation. It would be necessary to replace the MDM9215 with a MDM9615, which is far from being a simple plug and play operation.
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Crap..my retarded ass read it as VZ S4 on Tmo...not the other way around...in that case, you're right...my apologies...I've been researching getting the VZ S4 working on Tmo....since that's what I'm going to be doing.
Again...my apologies.
I have the Verizon galaxy S4 running Loki'd Hyperdrive rom and I'm on T-mobile, but I only get 2G (AKA edge and too slow for mms) how can I get T-Mobiles HSPA+?
I was using AT&T's AIRVOICE and got HSPA+ but always got redirected tot he GoPhone account empty screen. so HSPA+ worked but AT&T wasn't fond of my s4 being verizon branded. So I switched to T-Mobile and I HATE Edge. but it's better than nothing.
You can't get a device on Verizon that was not part of the Verizon database to work.
Look at the new Nexus 7, even with the correct frequencies, people are having a hell of a time trying to get a device with the right LTE bands to activate.
If it's not sold as a Verizon device, sell it and buy something else.

verizon sg4 with at&t SIM - 4G LTE

I have a Verizon SG4 with AT&T SIM working, voice and data. Data is only H+.
How can I get 4G or LTE?
Thank you!
How did you get ATT working? Just pop in the Sim card and enter the APNs? And LTE won't work, Verizon GS3 has Non Att LTE bands.
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Vfan23 said:
How did you get ATT working? Just pop in the Sim card and enter the APNs? And LTE won't work, Verizon GS3 has Non Att LTE bands.
Sent from my SCH-I545 using XDA Premium 4 mobile app
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Click to collapse
Yup, just popped in the SIM, went to AT&T store, copied in the APN from a working sg4, and voice and HSPA+ data works.
I have a SG4 not sg3. Doesnt teh SG4 have the same frequency bands?
Here is a tip buy an att phone if you're gonna use att
Lte bands for Verizon and att are different your lte won't ever work on att with a Verizon phone
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Gs4. My bad. Lol. I blanked out for a minute. Lmao. But yes, LTE will never work with an ATT Sim card in a Verizon phone
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ddckylec said:
Yup, just popped in the SIM, went to AT&T store, copied in the APN from a working sg4, and voice and HSPA+ data works.
I have a SG4 not sg3. Doesnt teh SG4 have the same frequency bands?
Click to expand...
Click to collapse
I'm thinking about using my Verizon S4 with Airvoice, an ATT mnvo. I don't care about LTE but can you post what the APN settings you entered are ?

Whats the Service (MODE) Menu Code

Anyone have any knowledge???
sent from my humongous VZW HTC ONE MAX
DROID3R said:
Anyone have any knowledge???
sent from my humongous VZW HTC ONE MAX
Click to expand...
Click to collapse
If you don't, then stay out!
No seriously, what are you looking to do ?
Sent from my Nexus 7 using Tapatalk 4
Activate LTE Band 4 AWS. I live in NYC where VZW recently turned on AWS due to bandwidth congestion.
Note 3 users are successfully forcing band 4 on their phone through the Service menu.
sent from my humongous VZW HTC ONE MAX
Thought that is what you were looking for. Only tmo One has aws band 4 so likely verizon max and others dont. I was looking to do it cause it came out in my area.
DROID3R said:
Activate LTE Band 4 AWS. I live in NYC where VZW recently turned on AWS due to bandwidth congestion.
Note 3 users are successfully forcing band 4 on their phone through the Service menu.
sent from my humongous VZW HTC ONE MAX
Click to expand...
Click to collapse
You can check what this code offers for you
*#*#4636*#*#
I was wondering this as well. I got a hold of the Verizon HTC rep, he said they will activate it in the SU1 update, whatever that means!!
Sent from my HTC6600LVW using XDA Premium 4 mobile app
---------- Post added at 03:11 PM ---------- Previous post was at 03:11 PM ----------
LTE basically sux in NYC without it, iPhone 5s users have it activated
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Straight talk help

I use my phones internet regularly and unfortunately, upon switching over from my previous phone this one only goes up to edge. I haven't figured out why it does this or any ways for it to go to 3g+. I use the att sim card.. When I put the sim card in different phones, it goes up to 3g and H.. I don't know if this is just stuck on going up to edge because it is not a verizon sim card. I still have the old verizon sim card, I am unaware if I could activate that via straight talk. Or if the fact that network operators is greyed out, if that has anything to do with it. Any help or insight into this problem would be great.
iElim said:
I use my phones internet regularly and unfortunately, upon switching over from my previous phone this one only goes up to edge. I haven't figured out why it does this or any ways for it to go to 3g+. I use the att sim card.. When I put the sim card in different phones, it goes up to 3g and H.. I don't know if this is just stuck on going up to edge because it is not a verizon sim card. I still have the old verizon sim card, I am unaware if I could activate that via straight talk. Or if the fact that network operators is greyed out, if that has anything to do with it. Any help or insight into this problem would be great.
Click to expand...
Click to collapse
What phone are you using now? What is your apn?
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enigma2446 said:
What phone are you using now? What is your apn?
Sent from my HTC One X using Tapatalk 2
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Driod Incredible 4G LTE and the apn is the one that straight talk provides.
They have 3......at&t old, at&t new, or t-mobile
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enigma2446 said:
They have 3......at&t old, at&t new, or t-mobile
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Click to collapse
mine is Verizon Branded if that helps
The apn? There are 3 of them for straight talk witch one?
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enigma2446 said:
The apn? There are 3 of them for straight talk witch one?
Sent from my HTC One X using Tapatalk 2
Click to expand...
Click to collapse
Tis one.
FIELD SETTINGS
NAME straight talk
APN tfdata
PORT 80
MMSC mms[dot]tf[dot]net
MMS PROXY mms3[dot]tracfone[dot]com
MMS PORT 80
Sorry for the misunderstanding
Might be because that is the new lte settings for straight talk... The device ur using only supports h+ for gsm ... Try this and make sure the network mode is set to gsm/wcdma auto
Coming to you live from the planet One X
anciebt Puidiz
enigma2446 said:
Might be because that is the new lte settings for straight talk... The device ur using only supports h+ for gsm ... Try this and make sure the network mode is set to gsm/wcdma auto
Coming to you live from the planet One X
Click to expand...
Click to collapse
I changed it to that and I got services but, no internet. Also, I only have CDMA/LTE and GSM/UMTS if that makes any difference. Obviously I am using the GSM/UMTS.
iElim said:
I changed it to that and I got services but, no internet. Also, I only have CDMA/LTE and GSM/UMTS if that makes any difference. Obviously I am using the GSM/UMTS.
Click to expand...
Click to collapse
Hmm interesting. Your using the Droid incredible 2 correct? Do you have a global option?
Coming to you live from the planet One X
enigma2446 said:
Hmm interesting. Your using the Droid incredible 2 correct? Do you have a global option?
Coming to you live from the planet One X
Click to expand...
Click to collapse
No the 4G LTE version. From Verizon.
EDIT: I think it has something to do with the network operators in the settings but, I am unable to get into those settings. Just a thought.
Weird in have a Verizon Droid incredible 2 right I'm front of me and it has a global option.
Coming to you live from the planet One X
---------- Post added at 01:24 AM ---------- Previous post was at 01:18 AM ----------
Wait it was released before the new rules so but needs to e sim unlocked first to brunch on USA towers I think anyways.
Coming to you live from the planet One X
enigma2446 said:
Weird in have a Verizon Droid incredible 2 right I'm front of me and it has a global option.
Coming to you live from the planet One X
---------- Post added at 01:24 AM ---------- Previous post was at 01:18 AM ----------
Wait it was released before the new rules so but needs to e sim unlocked first to brunch on USA towers I think anyways.
Coming to you live from the planet One X
Click to expand...
Click to collapse
Oh sorry, Yes I do have a global option but, it doesn't change from E...
Ok switch to global save and use my settings now reboot see what happens. If anything I'll barrow my friends Droid incredible 2 and see what I can do
Coming to you live from the planet One X
enigma2446 said:
Ok switch to global save and use my settings now reboot see what happens. If anything I'll barrow my friends Droid incredible 2 and see what I can do
Coming to you live from the planet One X
Click to expand...
Click to collapse
I just did what you said and still, I get service but, no internet.
I will do a test and report back tomm.
Coming to you live from the planet One X
---------- Post added at 02:06 AM ---------- Previous post was at 01:57 AM ----------
Update in hate to break it to you but the Droid incredible 2 by Verizon does not support the 1900 frequency that h+ runs on. Sorry here's a link to by our device
HTC DROID Incredible 2
http://www.gsmarena.com/htc_droid_incredible_2-3938.php
Coming to you live from the planet One X
---------- Post added at 02:08 AM ---------- Previous post was at 02:06 AM ----------
At&t runs on the 850 and 1900 frequency bands as you can see your device doesn't support it
Coming to you live from the planet One X
enigma2446 said:
I will do a test and report back tomm.
Coming to you live from the planet One X
---------- Post added at 02:06 AM ---------- Previous post was at 01:57 AM ----------
Update in hate to break it to you but the Droid incredible 2 by Verizon does not support the 1900 frequency that h+ runs on. Sorry here's a link to by our device
HTC DROID Incredible 2
http://www.gsmarena.com/htc_droid_incredible_2-3938.php
Coming to you live from the planet One X
---------- Post added at 02:08 AM ---------- Previous post was at 02:06 AM ----------
At&t runs on the 850 and 1900 frequency bands as you can see your device doesn't support it
Coming to you live from the planet One X
Click to expand...
Click to collapse
But I am not using the incredible 2.. I am using the incredible 4g LTE... Are they similar phones or something?

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