[HELP!] Getting my Verizon S4 working with T-Mobile - T-Mobile Samsung Galaxy S 4

Hey guys! I'm trying to get my Verizon S4 working for my wife on T-Mobile! She got the LG G3 last night and because she's so tiny, it's like a tablet to her!
Anyways, the Verizon S4 is rooted and is still on original MDK firmware. With that said, I'm not too sure exactly which steps in your guide apply to our situation...not having safe strap and all.
With changing the APN settings to match up to my phone (LG G3 on T-Mobile), and inserting a T-Mobile 4G sim card, I'm able to get calls and SMS working over WiFi on the S4...that's it though. No mobile data seems to be coming through. Her mobile signal icon in the status bar keeps switching back n forth from E to H for some reason...but no LTE or 4G icon.
Anyways, is this something anyone thinks they could help with? Or do ya think we're screwed? My sweet wife would be eternally grateful if someone could help to make this happen!!
EDIT: haha, my signature will be changed if I'm able to get this working for her!

Aren't you missing something here? Verizon is CDMA, TMo is GSM. I don't see how you can get cell coverage to work unless the phone has dual antennas.

enmatt said:
Aren't you missing something here? Verizon is CDMA, TMo is GSM. I don't see how you can get cell coverage to work unless the phone has dual antennas.
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Many newer CDMA devices with LTE support have gsm radios as well, that includes sprint and Verizon..
To OP, you may have better luck searching the Verizon forums if nobody replies here

Related

Help using my Nexus on ATT

Hello everyone, im very new to android, just recently switches from IOS... I currently have the G Note, love the device and screen but for me its a little to big and haven't been able to adjust to it yet...
Im selling my Note on ebay and have already purchased a Nexsus from ebay unlocked GSM, the research ive done tells me that I can get HSPA + plus speeds and ive heard some talk about LTE to? just curious as to what setting with the network that I would need to input so I get HSPA+ speeds... I know on the G Note forum there was a great link as to what settings to enter (APN and Proxy addresses)
I hope what I wrote is understandable, excuses my newbenes lol
Thanks for the help, you guys are the best.
You can just put your SIM in. If your SIM was provisioned properly to get HSPA+ on the Note, you'll get it on the GNex also, possibly with some small APN changes.
You will not get LTE.
martonikaj said:
You can just put your SIM in. If your SIM was provisioned properly to get HSPA+ on the Note, you'll get it on the GNex also, possibly with some small APN changes.
You will not get LTE.
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What he said. It'll work on AT&T out of the box, just pop your sim in.

Unlocking T-Mobile for AT&T service

hi everyone:
I have been looking via numerous thread online on many Android forums especially here and have been unsuccessful for the past 2 days now. So I figured I would need to create a thread and finally give in and ask for some help. I have a T-Mobile Samsung Galaxy 3 phone and I need to unlock it so that it will work on my AT&T service. Now i understand about rooting the phone and being able to play with themes etc, but its not that great if I can't use the phone itself.
Now without coming up with some kind of answer I must have watched about 40 youtube video's hoping to find out some kind of information. Mostly what I got out of it was numerous website that offer unlocking for phones at a certain price.
unlockcodesource(.)com
unlock2go(.)com
mobileunlockcodes(.)co.uk
Has anyone ever used any of these website or can someone give me some good advise on how I can get this phone unlocked please/
~Aqua
I think the toolkit stickied in the development forum has an option to SIM unlock the GS3. I have not tried this, and do not know if it works, but if the option is there, you might want to give it a shot.
If you're on contract with t mobile and your account is in good standing with them. Call them tell them you're going over seas and need to unlock your phone so you can use it. They will send you unlock code ... then pop in an att sim card and it will prompt you to enter the unlock code t Mobil gave you. Done
Sent from my SGH-T999 using xda premium
thanks _
Crisisx1 said:
If you're on contract with t mobile and your account is in good standing with them. Call them tell them you're going over seas and need to unlock your phone so you can use it. They will send you unlock code ... then pop in an att sim card and it will prompt you to enter the unlock code t Mobil gave you. Done
Sent from my SGH-T999 using xda premium
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OK thank you. I followed your instructions and they said it would take up to maybe 24 hrs for the phone to be unlocked. If it isn't unlocked than she said to call back with the conformation number she gave me. If that doesn't work than they would have to give Samsung my info and could take up to 14 days. She said when you buy phones almost all stands and corp stores have already unlocked phones.
she also said it would be auto unlocked for good. Can they lock the phone back up once it is be unlocked?
~Aqua
edited: Once I have it unlocked ( if all goes good ) do i use the same APN settings that I needed to put into the phone in order for my phone to work on the AT&T network as I did with my S2 that I got unlocked ?
Don't they use different frequencies for HSPA+
You would be relegated to edge speeds, correct me if I'm wrong
speed issue
five40 said:
Don't they use different frequencies for HSPA+
You would be relegated to edge speeds, correct me if I'm wrong
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I really don't know. That would be a great question if someone would be nice enough to help me with this information? Again i have a T mobile S3 hopefully its unlocked would I be losing speeds by being on the AT&T network?
thanks
~Aqua
AquaWater said:
I really don't know. That would be a great question if someone would be nice enough to help me with this information? Again i have a T mobile S3 hopefully its unlocked would I be losing speeds by being on the AT&T network?
thanks
~Aqua
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The T-Mobile S3 has the 850/1900 3G bands so it will work on AT&T's 3G network. It will not get LTE though.
You can unlock either by paying for a code from the various resellers online or requesting an unlock code from T-Mobile if you have an account in good standing with them. If you can't get the code from T-Mobile I suggest searching 'T999 unlock' on eBay and you'll find some good options.
The tmobile galaxy s3 will work on the ATnT HSPA+21 frequency. Same frequency the International version runs on for that network.
Sent from my SGH-T999 using xda app-developers app
Edge network and 3/4G Question
I found an excellent place so far on eBay for buying unlock codes. they have almost 3800 sells with a 99% positive feedback. Great customer service. The guy answered numerous questions of mine and made sure i did everything correctly. Payment was $24.95 US, so hopefullly everything will go good.
He was talking about being on something called an " Edge " network which is a little slower, but he said you won't notice a difference between your unlocked S2 and the unlocked S3 now. Right now my S2 says I have 3G service when I use it. I dont understand how i had a inspire4G, what is the 4G for if AT&T only gives you 3G service? And where I am in United States I should have 4G service no matter what. I'm confused on that.,
AquaWater said:
I found an excellent place so far on eBay for buying unlock codes. they have almost 3800 sells with a 99% positive feedback. Great customer service. The guy answered numerous questions of mine and made sure i did everything correctly. Payment was $24.95 US, so hopefullly everything will go good.
He was talking about being on something called an " Edge " network which is a little slower, but he said you won't notice a difference between your unlocked S2 and the unlocked S3 now. Right now my S2 says I have 3G service when I use it. I dont understand how i had a inspire4G, what is the 4G for if AT&T only gives you 3G service? And where I am in United States I should have 4G service no matter what. I'm confused on that.,
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Edge is 2G speeds, which are substantially slower than 3G speeds. IMHO, 3G speeds are livable, 2G/Edge is not.
Different phones have different radios which work on different frequencies. Some phones are not compatible with other services at all, and some will work on other carriers but often not at optimal speeds.
Darmokk said:
Edge is 2G speeds, which are substantially slower than 3G speeds. IMHO, 3G speeds are livable, 2G/Edge is not.
Different phones have different radios which work on different frequencies. Some phones are not compatible with other services at all, and some will work on other carriers but often not at optimal speeds.
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So than why would someone suggest that I would get "edge" instead of what i have now? I'm getting 3G now with my T-Mobile S2 unlocked on AT&T, but now I'm going to have an unlocked S3, why wouldn't it be the same?
Because the radios in the devices are different.
Sent from my SGH-T999 using xda app-developers app
So than why would someone suggest that I would get "edge" instead of what i have now?
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Because he/she doesn't know what he/she is talking about. You will be fine with a T-Mobile S3 on AT&T.
That's what I said earlier in not so many words.
Voice willl work fine you will not see HSPA+ speeds on At&t with a T-Mobile Galaxy SIII.
If the T-Mobile SIII has the hardware capability to support the At&t HSPA+ bands you would need modified radio software to unlock this ability.
I believe this was done on the Galaxy Note to tun on T-Mobile HSPA+ network before it was officially launched on T-Mobile.
kmdub I believe your the one that's wrong.
five40 said:
That's what I said earlier in not so many words.
Voice willl work fine you will not see HSPA+ speeds on At&t with a T-Mobile Galaxy SIII.
If the T-Mobile SIII has the hardware capability to support the At&t HSPA+ bands you would need modified radio software to unlock this ability.
I believe this was done on the Galaxy Note to tun on T-Mobile HSPA+ network before it was officially launched on T-Mobile.
kmdub I believe your the one that's wrong.
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I unlocked my t999 and am using an att straight talk sim getting HSPA speeds. Going to switch back to tmobile prepay because it is way faster than att HSPA with better latency. Although coverage may be lacking, i may just switch to an att ST sim.
To answer your question, a Tmobile S3 will work on ATT HSPA+ network with the HSPA+ Speeds of up to 6-7mbps in NYC area. The average I've been getting is around 2-3.5 mbps. With the tmobile prepay sim I have, it's usually around 2-18mbps down in NYC area.
The T-mobile S3 will not work on the ATT LTE network because it lacks that radio (or so they say for now); there have been other threads suspecting it's just a matter of flashing the right radio to "turn on" the ATT LTE radio. However, if all you want is HSPA+ speeds, rest assured it will work fine.
The ATT S3 is lacking the AWS bands for TMobile so it will not get the HSPA+ on Tmobile.
Best regards.
radio issue
First off, I would like to thank everyone who has been helping me along with my issues with my phone. I appreciate it a lot and I'm picking up more knowledge more and more everyday from you guys and reading heavily on the forums.
if the hardware in the phone doesn't support HSPA+ 1) will i have to root the phone and 2) change the radio? And 3 ) if I change the radio does that mean I would need to install a custom ROM i order for it to work properly?
Also, from one of the post they said "The T-Mobile S3 has the 850/1900 3G bands " - of that is true will than I should be able to have the 3G speeds correct?
I really hope I am not making some people angry, I'm new to this and trying my hardest to understand everything so I don't make mistakes. Please bare with me. Again, thank you so much everyone who has contributed so far. I still have a lot to learn. The reason why is because I just don't want it to work ( I do, want it to work ) but I want to understand why everything is working they way it is and I've over the past almost month have been picking up a lot of knowledge. Can't wait to hear from you guys
kmdub I believe your the one that's wrong.
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No, actually, you are wrong. The T-Mobile S3 does not need any modification to work properly on AT&T's HSPA network. Seems you are confusing something else with frequency. Quit spreading bad information.
OP: Don't worry about it. Some are making this way more complicated than it needs to be. As said before, if you have the T999, you will be fine on AT&T's HSPA network without any modifications (other than an account...lol). Just get the phone SIM-unlocked, pop in the right SIM, you are good to go. Seriously, it is that easy.
Well there it is, I stand corrected!
I had no idea the T-Mobile SIII supports At&t HSPA+ bands.
Is the same true to all T-Mobile HSPA+ phones?
Sorry for any issues, just learning
Hi everyone,
thanks so much for the info. Will the S2 I needed to put in certain APN settings inorder to receive MMS ( picture ) via texts. Do i use the same settings for the Samsung Galaxy 3?
kmdub said:
No, actually, you are wrong. The T-Mobile S3 does not need any modification to work properly on AT&T's HSPA network. Seems you are confusing something else with frequency. Quit spreading bad information.
OP: Don't worry about it. Some are making this way more complicated than it needs to be. As said before, if you have the T999, you will be fine on AT&T's HSPA network without any modifications (other than an account...lol). Just get the phone SIM-unlocked, pop in the right SIM, you are good to go. Seriously, it is that easy.
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I too have learned from this thread

Testing Tmobile with unlocked S3

Hey All,
I've placed a Tmobile sim in my Att unlocked GS3. Ive seen many posts stating that the Att version wont get 4g on tmobile but 4g works fine for me; regularly I can get 5 to 10mb downloads. My issue though is that Im sometimes dropping from 4g to 2g/Edge then back to 4g. Should my phone be dropping to 3g instead ? Im quite shocked when it happens since I usually had strong 4g not far away at all.
Is the general consensus to to simply get a Tmobile device instead of bringing something from at&t? I really dont want to root the phone or flash roms at this point since Im just testing out the service.
goon3r said:
Hey All,
I've placed a Tmobile sim in my Att unlocked GS3. Ive seen many posts stating that the Att version wont get 4g on tmobile but 4g works fine for me; regularly I can get 5 to 10mb downloads. My issue though is that Im sometimes dropping from 4g to 2g/Edge then back to 4g. Should my phone be dropping to 3g instead ? Im quite shocked when it happens since I usually had strong 4g not far away at all.
Is the general consensus to to simply get a Tmobile device instead of bringing something from at&t? I really dont want to root the phone or flash roms at this point since Im just testing out the service.
Click to expand...
Click to collapse
You are in a refarmed market from the sound of it. The reason you go from 4g to EDGE is because the refarmed spectrum is most likely not through your entire coverage area.
T-Mobile uses the 1700 band, which at&t does not support, as their primary 4G deployment. This is why it is always recommended to get a T-Mobile S3.
That said, there is a firmware image for at&t's GS3 that unlocks T-Mobiles AWS band not just for 4G but for LTE as well. It is in the at&t forum - you will have to read the entire thread to get the relevant files and information on how to do it. Note that this CAN brick your phone permanently so only attempt it if you are willing to take that chance and you are familiar with download mode and ODIN.
The upside of using that hack is that the T-Mobile S3 doesn't support LTE at all.
Sent from my SGH-T999
Thanks for the clarification and info about the hack. Assuming I get a Tmobile device, should I expect to see a 3g icon instead or would it still say 4g?
goon3r said:
Thanks for the clarification and info about the hack. Assuming I get a Tmobile device, should I expect to see a 3g icon instead or would it still say 4g?
Click to expand...
Click to collapse
It'll say 4g.. A 4g icon really means 3g/h+ and a 4g lte icon means lte
Sent from my SGH-T999 using xda premium
Thanks!
Here is the link http://forum.xda-developers.com/showthread.php?t=1771021&page=25 Start reading from post #246

T-Mobile on AT&T S3

I know there's loads of questions and threads about T-Mobile on a S3 but I've been dealing with this issue ever since my girlfriend gave me her old AT&T S3. I signed up on here just now because I couldn't stand trying to figure it out myself anymore.
I've also looked at all those threads and for some reason they all seem to have an opposite issue of what I have. To my understanding, areas that aren't re-farmed will give you 4g LTE and 2g (edge) but no 3g correct?
I get the opposite of that, I get only HSPA+, HSPA, rarely 2g and never LTE. The part I don't understand is why I don't get LTE. My Brother is able to get LTE with his T-Mobile LG G2 so LTE coverage should be fine in my area.
I ended up finding out that T-Mobile requires a newer sim card to work with LTE and I was using an extremely old one that I got when smartphones basically just came out. (I cut it into micro shape) Today I just received my new sim in the mail, popped it in and it showed LTE with 4 bars but I couldn't do anything because I haven't activated it yet. Once I got it activated it went back to HSPA+.
The weird part about this is that if I restart my phone sometimes it'll show LTE for a couple seconds but it'll say "no service" then proceed to go back to H+.
I'd like to at least know someone else gets the same thing because it's been driving me crazy and it seems like I'm the only one having this issue. I've literally been trying to get LTE on this phone for about a year now.
If someone can try helping that'd be cool, thanks

Unlocked Sprint Note 5 issues.

So my brother gave my his old Sprint Galaxy Note 5, which he had unlocked so that I could use it on AT&T. We had to set up the new APN to work with GSM instead of CDMA. The issue is that it cannot access 4G bands, just 3G. There are some other minor issues as well, such as location based services. I was looking into flashing AT&T firmware onto the phone, but cannot seem to find a way to do it online. I may not have scoured hard enough, or it may not be able to be done.
Would anyone be able to shed some light on this for me? I would prefer not to brick the phone by attempting something when I clearly do not have enough information about the subject. Could it just be an APN issue? Or will the phone just be stuck on a lower speed band? Any help would be appreciated.
Thanks.
The modem will only be able to access the 3G network as AT&T uses different LTE bands then Sprint.
I just found that out a little earlier today. Forgot to delete this thread. Thank you for your reply though.
ZionMirem said:
I just found that out a little earlier today. Forgot to delete this thread. Thank you for your reply though.
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You might be able to force the network bands with an app. No promises.
Well crap, just got mine unlocked to do the same thing. Guess I'm better off selling it and getting the att version. Was hoping the N7 took off so people would dump their N5 but looks like people will be keeping it.
Sent from my SM-T810 using Tapatalk
ZionMirem said:
So my brother gave my his old Sprint Galaxy Note 5, which he had unlocked so that I could use it on AT&T. We had to set up the new APN to work with GSM instead of CDMA. The issue is that it cannot access 4G bands, just 3G. There are some other minor issues as well, such as location based services. I was looking into flashing AT&T firmware onto the phone, but cannot seem to find a way to do it online. I may not have scoured hard enough, or it may not be able to be done.
Would anyone be able to shed some light on this for me? I would prefer not to brick the phone by attempting something when I clearly do not have enough information about the subject. Could it just be an APN issue? Or will the phone just be stuck on a lower speed band? Any help would be appreciated.
Thanks.
Click to expand...
Click to collapse
It does support the AT&T LTE bands, call AT&T and have them put in the IMEI into the system to allow LET access. Since it's a Sprint phone it's not in their system as a 4G/LTE device. I got mine working but seems it has a difficult time getting into LTM mode, I have the correct APN setup and 3G works fine.

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