Database Users

[Q] Using an AT&T S4 with Verizon

Hey guys, I'm getting my hands on my friend's Galaxy S4. He is on an AT&T plan and got then phone from them through an upgrade. I personally prefer Verizon. I was wondering if I could get some help on making his phone work for me. I have a SIM card and everything, currently using a RAZR MAXX. I've done a little looking around, and from what I gathered, the phone is capable of working with verizon, but I'll have to load a different kernel and ROM onto it. I've looked through http://forum.xda-developers.com/showthread.php?t=2295557 that thread and found some nice info, but I'm not yet confident enough in my knowledge to go through with it. I've decided on the http://forum.xda-developers.com/showthread.php?t=2305781 CLEANROM 1.6.5, but I don't know what else I'm going to need to have in order to make this phone work for me. I also don't know if I'll need to download the Verizion or the AT&T version of this. Thanks for all the help, I'm really wanting to make this work for me so I can actually get a powerhouse of a phone.

Xray55 said:
Hey guys, I'm getting my hands on my friend's Galaxy S4. He is on an AT&T plan and got then phone from them through an upgrade. I personally prefer Verizon. I was wondering if I could get some help on making his phone work for me. I have a SIM card and everything, currently using a RAZR MAXX. I've done a little looking around, and from what I gathered, the phone is capable of working with verizon, but I'll have to load a different kernel and ROM onto it. I've looked through http://forum.xda-developers.com/showthread.php?t=2295557 that thread and found some nice info, but I'm not yet confident enough in my knowledge to go through with it. I've decided on the http://forum.xda-developers.com/showthread.php?t=2305781 CLEANROM 1.6.5, but I don't know what else I'm going to need to have in order to make this phone work for me. I also don't know if I'll need to download the Verizion or the AT&T version of this. Thanks for all the help, I'm really wanting to make this work for me so I can actually get a powerhouse of a phone.
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Nope. it won't work.

xuanphucn said:
Nope. it won't work.
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Is what I read about on the post I linked not true then?

Xray55 said:
Is what I read about on the post I linked not true then?
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Your link is to a thread regarding other variants of S4 roms. Although you can use other S4 roms on the i337, the phone wont work on verizon carrier.

Kaze105 said:
Your link is to a thread regarding other variants of S4 roms. Although you can use other S4 roms on the i337, the phone wont work on verizon carrier.
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I'm not sure about that. ROM shouldn't matter too much, you just have to have it SIM unlocked and I believe it won't work too well due to the different frequencies between carriers and so you may not get LTE or something. Maybe someone can correct me though.
Sent from my GT-I9505 using xda app-developers app

Verizon/Sprint phones use CDMA.
ATT/T-Mobile use GSM
I don't think you can use a CDMA phone on a GSM network and vice versa.
EDIT:
Per the replies below, it looks like it ispossible.
Here is a thread from the Verizon forums.
Also, if this WIKI page is correct, the Verizon S4 has both CDMA and GSM radio's where the ATT S4 only has a GSM radio.

The first thing to identify on the phone is whether or not it is on the stock AT&T ROM and what version that ROM is. If it is I337UCUAMF3 then changing the bootloader/kernal/rom is not even an option to begin with which means there would be no way to change out the modem to support other carrier bands (such as those used by Verizon). On top of that, although I have heard that the modem hardware is the same on all versions of the S4 I have not heard anyone confirm that they have successfully enabled CDMA services on the I337.

rayburne said:
Verizon/Sprint phones use CDMA.
ATT/T-Mobile use GSM
I don't think you can use a CDMA phone on a GSM network and vice versa.
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There are some that work on other networks without the need for modem changes. I read about some using the Verizon on AT&T, and I used the droid Bionic, a Verizon exclusive with a locked boot loader, on AT&T.
Sent from my SGH-I337 using xda app-developers app

The strange thing is you can use a Verizon S4 on AT&T but you can't do it the other way around. Verizon phones all come unlocked, allowing you to use the phone anywhere around the world.
The AT&T S4 does not contain the CDMA chip allowing you to use it on the Verizon network, plus it has to do something with IMEI. If you give the IMEI to Verizon, they won't be able to locate which device you are trying to activate because it's not in the system. But if you use a Verizon S4 and put in a AT&T SIM card, you don't have to register the IMEI with AT&T or T-Mobile.

emckai said:
The strange thing is you can use a Verizon S4 on AT&T b.
you can't do it the other way around. Verizon phones all come unlocked, allowing you to use the phone anywhere around the world.
The AT&T S4 does not contain the CDMA chip allowing you to use it on the Verizon network, plus it has to do something with IMEI. If you give the IMEI to Verizon, they won't be able to locate which device you are trying to activate because it's not in the system. But if you use a Verizon S4 and put in a AT&T SIM card, you don't have to register the IMEI with AT&T or T-Mobile.
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I can confirm that this is true about the verizon s4. I have a Verizon s4 and have used AT&T and straight talk on it. My brother uses that phone daily on his AT&T account.
I will test my AT&T s4 when I get around to finding my sim card.

sundigen said:
I can confirm that this is true about the verizon s4. I have a Verizon s4 and have used AT&T and straight talk on it. My brother uses that phone daily on his AT&T account.
I will test my AT&T s4 when I get around to finding my sim card.
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I'm pretty sure you won't be able to use an AT&T S4 on Verizon because the AT&T S4 doesn't have the CDMA capabilities.

emckai said:
I'm pretty sure you won't be able to use an AT&T S4 on Verizon because the AT&T S4 doesn't have the CDMA capabilities.
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Yea I noticed that the ATT S4 doesn't have everything that the Verizon S4 has in the service menu. Like I can turn on all the different bands in the service menu, but on my ATT S4 I get restrictions on wcdma.
I'm new to all this. I traded a iPhone for the ATT version because I couldn't figure out how to make the Verizon version work on straight talk..
Not two days after I have the ATT I somehow got it working... Lol. So now I have two with unlocked bootloaders and sum unlocked...

sundigen said:
Yea I noticed that the ATT S4 doesn't have everything that the Verizon S4 has in the service menu. Like I can turn on all the different bands in the service menu, but on my ATT S4 I get restrictions on wcdma.
I'm new to all this. I traded a iPhone for the ATT version because I couldn't figure out how to make the Verizon version work on straight talk..
Not two days after I have the ATT I somehow got it working... Lol. So now I have two with unlocked bootloaders and sum unlocked...
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Methods used to obtain this?
I am I believe sim unlocked because I no longer see the prompt for password apon boot but the verizon doesn't connect.
Thank you in advance!

[Q] Domestic Unlock of Sprint G2

I broke my sprint phone, but I can upgrade to a new phone now on Sprint. I want to use the Sprint One Up Plan for a bit, then leave the contract since I don't believe it has a contract. I plan on using the G2 as my replacement. I want to move to T-Mobile later, and I know the G2 can be used on Sprint. I also have read here that the G2 comes factory locked by Sprint, and Sprint will one unlock it for international use. Is there something that I could flash to the G2 to allow me to use it on T-Mobile when I switch?
Basically, how can I use domestic USA GSM on a Sprint LG G2?
I will at least root and unlock the phone internationally first anyway, since I need to use outside of the country. Flashing ROMs and things like that is not a problem for me.

ashraj98 said:
I broke my sprint phone, but I can upgrade to a new phone now on Sprint. I want to use the Sprint One Up Plan for a bit, then leave the contract since I don't believe it has a contract. I plan on using the G2 as my replacement. I want to move to T-Mobile later, and I know the G2 can be used on Sprint. I also have read here that the G2 comes factory locked by Sprint, and Sprint will one unlock it for international use. Is there something that I could flash to the G2 to allow me to use it on T-Mobile when I switch?
Basically, how can I use domestic USA GSM on a Sprint LG G2?
I will at least root and unlock the phone internationally first anyway, since I need to use outside of the country. Flashing ROMs and things like that is not a problem for me.
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No this will not work at all.. T mobile and Sprint G2's are completely different.. If you want to move to T mobile, move.. Otherwise stay with sprint!
Sent from my LG-D802 using xda app-developers app

Sean473 said:
No this will not work at all.. T mobile and Sprint G2's are completely different.. If you want to move to T mobile, move.. Otherwise stay with sprint!
Sent from my LG-D802 using xda app-developers app
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I saw this dicussion: http://forum.xda-developers.com/showthread.php?t=2524771
Is it possible, after I finish with Sprint, I could flash the firmware and modem of T-Mobile's G2?
Would any of those unlock codes for the IMEI work, since it supports GSM?

Thats risky due to the fact that tmo uses different bands than sprint plus the radio waves are different and sprint is gsm and tmo is cdma

tbishop91 said:
Thats risky due to the fact that tmo uses different bands than sprint plus the radio waves are different and sprint is gsm and tmo is cdma
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Sprint is CDMA and T-Mobile is GSM...
Anyway, I know the G2 supports all of the bands, so I don't see why this can't happen. Sprint has just locked away the domestic GSM capabilities. Why is flashing theT-Mobile modem such a risk then? WOuld I be able to flash it back?

ashraj98 said:
Sprint is CDMA and T-Mobile is GSM...
Anyway, I know the G2 supports all of the bands, so I don't see why this can't happen. Sprint has just locked away the domestic GSM capabilities. Why is flashing theT-Mobile modem such a risk then? WOuld I be able to flash it back?
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Sorry always get that bavkwards the issue is with two things the radio, which you said you could flash the modem no problem. Then the biggest issue is the sim card now im not sure if the sprint variant has a sim card slot. But from what my buddy has told me who is a tmobile phone tech they dont have away to enable your service with out the sim card. For some reason they dont do their services like most carriers and just use the phones imei number to set service. If im wrong im sorry and hopefully you can get everything switched. And thank you for the imformation i did not know the g2 has all bands hidden inside the phone. I was just worried that the radio bands would get you. And to answer your question yes you can always just flash them back.

tbishop91 said:
Sorry always get that bavkwards the issue is with two things the radio, which you said you could flash the modem no problem. Then the biggest issue is the sim card now im not sure if the sprint variant has a sim card slot. But from what my buddy has told me who is a tmobile phone tech they dont have away to enable your service with out the sim card. For some reason they dont do their services like most carriers and just use the phones imei number to set service. If im wrong im sorry and hopefully you can get everything switched. And thank you for the imformation i did not know the g2 has all bands hidden inside the phone. I was just worried that the radio bands would get you. And to answer your question yes you can always just flash them back.
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No problem. If I helped give me my first thank you. I'm going to go to the Sprint Store soon and see what they say. The Nexus 5 seems to be compatible with any carrier, but I like the G2 just a bit better. Sprint has a help topic regarding replacing the SIM , so that is not an issue. Hopefully someone else can tell me if the G2 can have a different modem flashed.
I don't want to take any unneccessary risks flashing, because that is what broke my last two Sprint phones lol.

ashraj98 said:
No problem. If I helped give me my first thank you. I'm going to go to the Sprint Store soon and see what they say. The Nexus 5 seems to be compatible with any carrier, but I like the G2 just a bit better. Sprint has a help topic regarding replacing the SIM , so that is not an issue. Hopefully someone else can tell me if the G2 can have a different modem flashed.
I don't want to take any unneccessary risks flashing, because that is what broke my last two Sprint phones lol.
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Ok so i was wrong it looks like the spring g2 does have a sim spot so all you have to do is 1 get unlock.from sprint 2 flash required firmware and modem and radio files 3 go tothe phones dailer and dail*#*#4636#*#*. This will bring up the menu shown inscreen shot. Switch your current band from evdo to what is shown in the screen shot and bam sprint branded tmo phone if i help at all pls return the favor with the thanks.

tbishop91 said:
Ok so i was wrong it looks like the spring g2 does have a sim spot so all you have to do is 1 get unlock.from sprint 2 flash required firmware and modem and radio files 3 go tothe phones dailer and dail*#*#4636#*#*. This will bring up the menu shown inscreen shot. Switch your current band from evdo to what is shown in the screen shot and bam sprint branded tmo phone if i help at all pls return the favor with the thanks.
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So where do I get the files? And can you confirm this has a good chance of succeeding?

It will not work.. Sprint doesn't unlock the phone for domestic US GSM carriers and the 2 models for Sprint and T-Mobile are completely different. You flash anything like the radios and you'll have a massive brick. If you want to move between carriers, get the Nexus 5.
Sent from my LG-D802 using xda app-developers app

Sean473 said:
It will not work.. Sprint doesn't unlock the phone for domestic US GSM carriers and the 2 models for Sprint and T-Mobile are completely different. You flash anything like the radios and you'll have a massive brick. If you want to move between carriers, get the Nexus 5.
Sent from my LG-D802 using xda app-developers app
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Sprint and Tmo both confirmed yesterday that this is possible
,
ashraj98 said:
So where do I get the files? And can you confirm this has a good chance of succeeding?
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As far as the files go I can search here for a thread. And I'm sorry man I will not confirm for you the chance of success because any thing can happen but before you do any thing I recommend you talk to both sprint and tmo in your area

You will not get domestic GSM service with Sprint atm. Hang it up until a solution if any will come. Even after that, it will never be fully compatible with Tmob bands. I love/hate Verizon.

tbishop91 said:
Sprint and Tmo both confirmed yesterday that this is possible
,
As far as the files go I can search here for a thread. And I'm sorry man I will not confirm for you the chance of success because any thing can happen but before you do any thing I recommend you talk to both sprint and tmo in your area
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Really? That's weird that Sprint would say that. What exactly did they say?

MetroPCS
I just flashed my ls 980 to Metro they just got bought out by T mobile!!!

ashraj98 said:
Really? That's weird that Sprint would say that. What exactly did they say?
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They said and i quote just call customer service and have them unlock the phone. Once the phone is unlocked you can flash to a different carrier but you have to know what your doing.

tbishop91 said:
They said and i quote just call customer service and have them unlock the phone. Once the phone is unlocked you can flash to a different carrier but you have to know what your doing.
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Well I may just do that, or now I could go with T-Mobile. They are buying out 2-year contracts now (a.k.a they pay your early termination fee). That is sweettttttt!

ashraj98 said:
Well I may just do that, or now I could go with T-Mobile. They are buying out 2-year contracts now (a.k.a they pay your early termination fee). That is sweettttttt!
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Yeah man I have tmo and I love them but if you go to tmo make sure to sign up for jump because the lg flex has been confirmed for the US plus you get free lookout premium and insurance

tbishop91 said:
Yeah man I have tmo and I love them but if you go to tmo make sure to sign up for jump because the lg flex has been confirmed for the US plus you get free lookout premium and insurance
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Yup that's EXACTLY what i'm going to do. Great stuff at tmo from what I've heard. Thanks for all the help everyone.

[Q] Sprint S5 can be used on T-mobile?

Just got a Galaxy S5 from a vendor for free but with Sprint. I'm on t-Mobile, is there any way to make it work with t-Mobile by chance? Sorry haven't rooted or ROM'd a phone since my good ole days on the HTC EVO. I tried to search the forums, apologize if this has been asked and answered.

pdub110 said:
Just got a Galaxy S5 from a vendor for free but with Sprint. I'm on t-Mobile, is there any way to make it work with t-Mobile by chance? Sorry haven't rooted or ROM'd a phone since my good ole days on the HTC EVO. I tried to search the forums, apologize if this has been asked and answered.
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I have the same question...I'm not on Tmobile yet but I have a Sim card and was going to try and activate but I think I'll Root and Custom Recovery first...My device is one I got a good price because it has a bad ESN for Sprint so yeah...I hope it can go on Tmobile :silly:
* I'm not 100% sure but I think the Sprint S5's are GSM Unlocked.....Can some one confirm?

pdub110 said:
Just got a Galaxy S5 from a vendor for free but with Sprint. I'm on t-Mobile, is there any way to make it work with t-Mobile by chance? Sorry haven't rooted or ROM'd a phone since my good ole days on the HTC EVO. I tried to search the forums, apologize if this has been asked and answered.
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If it supports the LTE bands that TMO uses, then go for it.
Check out gsmarena or some other sites to compare which LTE bands it supports and for which bands TMO is using.
But its quite likely it does NOT support all LTE bands, if any.

i dont think it can
unlocking it only lets you use it internationally

eyecon82 said:
i dont think it can
unlocking it only lets you use it internationally
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I tried putting my SIM card in, says Not Valid SIM. I'm guessing i could probably get around that somehow but i don't know if all the LTE bands are supported. I'm busy with work but if i somehow figure it out i will post something. But i guess i should start with the radio's as suggested.

Question regarding G2 and Bad Esn sprint one.

After reading stuff i figured that all G2's are world phones.
Im From india and my question is that if i get a G2 of ebay sprint one with a bad ESN, since it cant be activated on sprint again which is a given.
Now my question is can buy the phone and use it with a regular GSM sim card from india ?
If yes what would i need to do to use the phone if it has a Bad ESN.
Any kind of answer would be helpful thanks a ton

Help

I don't think a Sprint G2 would work in India, sorry. Sprint is a US carrier and uses CDMA instead of GSM. However, the international D802 model should work fine. The ESN is attached to the phone and not the carrier anyway, so no matter what carrier your on it won't activate.

The Sprint G2 is not factory unlocked for international GSM usage. It is an international capable device though (GSM 850/900/1800/1900). If the seller is not specifically stating that the phone has been unlocked for international use then it will not work in India. Only Sprint can unlock the phone and if your not the owner of the phone with an active line with Sprint they wont unlock it for you plain and simple. I would recommend to save your self a big hassle and buy the international G2 D802.

daCLOUD said:
The Sprint G2 is not factory unlocked for international GSM usage. It is an international capable device though (GSM 850/900/1800/1900). If the seller is not specifically stating that the phone has been unlocked for international use then it will not work in India. Only Sprint can unlock the phone and if your not the owner of the phone with an active line with Sprint they wont unlock it for you plain and simple. I would recommend to save your self a big hassle and buy the international G2 D802.
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Cool thanks a ton

berz said:
Cool thanks a ton
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No problem, I forgot to mention that the Verizon G2 is factory unlocked for GSM service. You could buy a BAD ESN Verizon G2 and put in your India GSM sim card and it would work with no unlocking necessary. I'm not sure what band you need for LTE, but HSPA+ should work.

Question answered, thread closed

[Q] T-Mobile LG G2 on AT&T

Hey I was wondering if I unlocked my LG G2 from T-Mobile would I be able to use it on AT&T's network? I would like to still get 4G LTE but I'm not sure thats possible. I asked a AT&T representative and they said that I would get AT&T's 4G LTE after registering my IMEI and with the correct APN settings. Can anyone confirm this? Thank you very much for any responses.

I used an AT&T SIM and the Go Phone $60 plan on my unlocked D801 for trip to Alaska in May and got LTE in many places. Use "phone" as the APN.

yeswap said:
I used an AT&T SIM and the Go Phone $60 plan on my unlocked D801 for trip to Alaska in May and got LTE in many places. Use "phone" as the APN.
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Oh okay thanks. For some reason I heard that a lot of people didn't get good data speeds or something like that. Maybe those people didn't fix the APN or the IMEI

Bump?