Verizon GS4 with an AT&T user - AT&T Samsung Galaxy S 4 Q&A, Help & Troubleshootin

Hello guys, my friend gave me his Galaxy S4 today and it is a Verizon phone. However, I am on an AT&T network. Is there anything that I need to do prior to using this Verizon Galaxy S4 as my main phone? I hear the phone is already unlocked out of the box but I want to take the necessary steps to make sure this phone will run smoothly on my network.
Also if I wanted to flash a ROM would I be using an AT&T based ROM (although it is a verizon phone) or would I just flash a Verizon based ROM?

Iset up a verizon gs3 for att, I needed to add apn and that was it. Did not get att lte though voice, sms, mms and web all worked through the native apps
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Related

[Q] Which Tab best for Unlocking ?

I have been reading the unlocking / voice calling threads about the galaxy tab and they are really informative. However, with the thread growing so long and so many different carriers being discussed, I lose track of which version is doing what.
So, since I am buying one today, I would really like to know which carrier would be the best to unlock here in the US. Should I buy the AT&T or T-Mobile vesrion? Does unlocking or flashing one or the other provide better use or functionality than the other?
What are your thoughts?
Thanks,
JT
^from what i have read on here the tmo version is not compatible at the moment with the unlocks;
hence the at&t version is best in usa; and the bell canada version in CDA..
enjoy!
i would go with att because it will be compatible with Euro 3G frequencies also you will be able to hack to get phone calls AND 3g. I believe Tmobile is only getting voice and edge at the moment...
Why are the Verizon and Sprint models left behind?
Sent from my SPH-P100 using XDA App
AlpineM3 said:
Why are the Verizon and Sprint models left behind?
Sent from my SPH-P100 using XDA App
Click to expand...
Click to collapse
Because they are obviously more difficult to unlock and are probably less compatible with any other countries network. Almost every carrier worldwide uses GSM, sim cards. So version nor sprint wouldnt be a good choice since they don't use sim cards.
Sent from my GT-P1000 using Tapatalk
Would a tmobile tab work in europe or asia?
gigadigit said:
Would a tmobile tab work in europe or asia?
Click to expand...
Click to collapse
Yes if u unlock it but you wont get 3G
Sent from my GT-P1000 using Tapatalk
ayman07 said:
Yes if u unlock it but you wont get 3G
Sent from my GT-P1000 using Tapatalk
Click to expand...
Click to collapse
Yes you would! A TMo Tab still supports regular 2100MHz UMTS.
Regards,
Dave
jtorral said:
I have been reading the unlocking / voice calling threads about the galaxy tab and they are really informative. However, with the thread growing so long and so many different carriers being discussed, I lose track of which version is doing what.
So, since I am buying one today, I would really like to know which carrier would be the best to unlock here in the US. Should I buy the AT&T or T-Mobile vesrion? Does unlocking or flashing one or the other provide better use or functionality than the other?
What are your thoughts?
Thanks,
JT
Click to expand...
Click to collapse
1. Both at&t and tmobiles tabs can be easily carrier (network) unlocked. Verizon and Sprint are CDMA and will not work in Europe. Also I am not sure that anybody knows how to switch these tabs from one carrier to another.
2. Another story about getting voice and 3G in the US. So far the best case for using tmobile phone sim presents at&t tab. Tmobile does not recognize this tab and their broadband device and allows for voice calling.
I could have voice and EDGE on tmobile using at&t tab with flashed EUR firmware and bell modem.
'I'm with Verizon's tab in SF, USA. Rooted with 4Zroot.
Using Droid X overclock application (market) on other extra features only.
GV & Skype (mod for 3G), can make calls & receives with both 3G (data plan $20-1Gb) & Wifi plane mode. I hope this helps.
Sent from my SCH-I800 using XDA App
Is it possible to root the Sprint version? Can you run custom roms?
Tethering with my Droid X is working too. I haven't done the recovery yet, waiting for stable version.
Sent from my SCH-I800 using XDA App
2. Another story about getting voice and 3G in the US. So far the best case for using tmobile phone sim presents at&t tab. Tmobile does not recognize this tab and their broadband device and allows for voice calling.
I could have voice and EDGE on tmobile using at&t tab with flashed EUR firmware and bell modem.[/QUOTE]
I am new to all this and just want to be 100% clear.
If I have a TMob Tab I have to use an ATT sim. If I have a ATT Tab I can use either ATT or Tmob sim.
If I use the ATT Tab with my current Iphone 3gs sim (unlimited everything) I will have full voice and 3g function?
If I use the Tmobile Tab with my ATT sim (unlimited everything) I will full voice and only 2g data?
Im sorry for asking such a simple question but I just want to be sure before I buy a Tab today.
Thank you all in advance.
Att and tmobile are using different frequencies thus 3G won't work if you are not using sim and tab from the same carrier. You can get only EDGE.
Att tab allows for voice and data when using t-mobile sim with voice and data plan.
I don't have knowledge of whether t-mobile allows the same with att sim.
T-mobile does not allow for voice and data when using their sim...
Adapt0r said:
Att and tmobile are using different frequencies thus 3G won't work if you are not using sim and tab from the same carrier. You can get only EDGE.
Att tab allows for voice and data when using t-mobile sim with voice and data plan.
I don't have knowledge of whether t-mobile allows the same with att sim.
T-mobile does not allow for voice and data when using their sim...
Click to expand...
Click to collapse
Thanks, that cleared it up for me.
I'd be happy with a TMob tab that had voice and Edge at this point. I'm almost always in WiFi anyway.
I picked up a Tmob tab today, if things dont look up soon I will return it and get the ATT.

[Q] Switch to MetroPCS from Verizon

Is there a guide to move me from Verizon to MetroPCS along with MMS, etc?
yea its called flashing and i really dont know the tutorial on it but do a craigslist search on it and people sell the service like theyll do everything open your account and flash your phone to metropcs
but i recommend flashing with boost
metro flashing doesnt seem to give 3g
friend has an evo with metro and speeds are painful to watch
other friend has nexus s on boost and it is amazing
good luck
Cdma workshop is the name of the program. I wasent aware that verizon had compatible phones with metro.
Sent from my MyTouch 4G Slide using xda premium
Any Sprint or Verizon phone is compatible with MetroPCS. GSM phones cannot be flashed because they have SIM cards. Therefore T-Mobile and AT&T phones are not compatible.

[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.
Click to expand...
Click to collapse
Nope. it won't work.
xuanphucn said:
Nope. it won't work.
Click to expand...
Click to collapse
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?
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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.
Click to expand...
Click to collapse
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...
Click to expand...
Click to collapse
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] Can I be on Sprint and T-mobile at the same time after domestic unlock?

[Q] Can I be on Sprint and T-mobile at the same time after domestic unlock?
I was planning to a get a S4 L720 on Freedompop (runs on sprint) for the free 500mb data plan and I was thinking if i could get my tmobile prepaid voice only to work in conjunction with the phone. Could I get the CDMA and GSM at the same after I do the domestic unlock for the phone?
Would flashing a Tmobile Rom and using sprint apn work?
No it's not possible to do. Either one.or the other.
ok. thanks for the help
I was under the impression that the sprint GALAXY S4 didn't have the GSM antenna. Is that incorrect?
firesoul453 said:
I was under the impression that the sprint GALAXY S4 didn't have the GSM antenna. Is that incorrect?
Click to expand...
Click to collapse
No
Also you can switch effortlessly between tmobile and sprint by changing your network preference. But you can't receive calls on the two networks simultaneously.
I have an Sprint Galaxy S4 SPH-L720 unlocked and rooted on T-Mobile right now.
The only issue is when I call it goes through but the phone app hangs.
Sound doesn't work either.

[Q] Recent way to flash Sprint Galaxy S4 to Metro PCS

Hello everyone. I need to flash my Samsung Galaxy S4 from Sprint to MetroPCS. What is the most recent way to do this? Thank you in advance.
HTCOneGuy said:
Hello everyone. I need to flash my Samsung Galaxy S4 from Sprint to MetroPCS. What is the most recent way to do this? Thank you in advance.
Click to expand...
Click to collapse
Flashing is no longer supported by MetroPCS and not really practical anymore. Since Metro has stopped using Houdini no new ESNs can be added to their CDMA database, so the only way to get a working flash is to illegally change your phone's ESN.
Now, even if you did successfully flash your S4 over there a re a few reasons why it's a bad idea. For one Metro is going to be turning off their CDMA network completely soon, since Metro merged with T-Mobile thy use GSM now. Two, a flash would only get you 3g. And lastly Metro dealers will most likely not even activate the phone for you if you bring it into the store, because they are not allowed and will get in trouble if word got out that they were activating flashed phones.
If you want to use your Sprint S4 on Metro just follow this guide here to complete a SIM unlock, which will allow you to use your S4 with GSM networks.

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