Develop Bugs

Moving to GS3 from IP5.....

OK guys need some advice ....I've had this ip5 for about 3 weeks now and I'm bored
Already... I have a plan with fido here in Montreal that is on LTE right now with and grandfather plan
That I would not get rid of...Sooooo my question is what should I look for on the box ....of a Galaxy S3....Does it need to
Say LTE I747M...???? Should I stay away from certain carriers like telus videotron bell....and just stick with
Rogers cause it owns Fido....and what would be the apn info on fido for LTE...
If I do find one what would be the first thing to do before rooting it..... should I backup the IEMI can this be done without root....
I think that's it really but if you have more info please say so would be much appreciated....and thanks
Transformer TF101

Lurk around this forum. Read as much as you can. Does fido sell the galaxy s3? The nano-sim from your iphone5 will not fit in your s3 btw, you will need a micro sim.
All versions of s3 except Verizon already has the bootloader unlocked so just get one that's already unlocked for fido to be easier.
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

The Bell, rogers and Telus versions are exactly the same.... so are Fido, Koodo and Virgin as they are sub brands of the big 3.
Videotron's version is NOT the same model, so just don't touch.
Sent from my SGH-I747M using xda app-developers app

I have a sgs3 from rogers. It works on the fido network without having to be carrier unlocked (tried to use a fido micro sim so i can key in unlock code, but instead it connected to the fido network). Fido doesn't seem to carry any premium phones with the exception of iphone. Mine has recently been rooted and running cm10.

holangjai said:
I have a sgs3 from rogers. It works on the fido network without having to be carrier unlocked (tried to use a fido micro sim so i can key in unlock code, but instead it connected to the fido network). Fido doesn't seem to carry any premium phones with the exception of iphone. Mine has recently been rooted and running cm10.
Click to expand...
Click to collapse
PM Sent...
thanks guys for the info much appreciated :good:

Can S3 i747m be modified to use wind mobile?

I am asking if there is a way to make my galaxy s3 i747m useable with wind mobile. Im asking because I remeber that with the Galaxy s2x from telus and I believe rogers you could flash a t-mobile rom and be able to us it on the wind network. I am wondering if anyone has tried this? and what happened.

carlos1984 said:
I am asking if there is a way to make my galaxy s3 i747m useable with wind mobile. Im asking because I remeber that with the Galaxy s2x from telus and I believe rogers you could flash a t-mobile rom and be able to us it on the wind network. I am wondering if anyone has tried this? and what happened.
Click to expand...
Click to collapse
It sounds doable. If the phone is compatible as is, you may just need to unlock it to get it to work. You may need to try some different modems though.

There is some guy on kijiji that does it for 20 bucks. Yet I have no clue what he actually does lol
Sent from my SAMSUNG-SGH-I747 using xda app-developers app

g2tegg said:
There is some guy on kijiji that does it for 20 bucks. Yet I have no clue what he actually does lol
Sent from my SAMSUNG-SGH-I747 using xda app-developers app
Click to expand...
Click to collapse
Checked Kijiji and don't see him. Please post the link if you can find it. Thx

I found this in the Note 2 forums. While I haven't tried it personally, it looks interesting and may be able to help
http://forum.xda-developers.com/showthread.php?t=2068041

Unlock it and setup Wind Mobile's APN

RepublicanJesus said:
Unlock it and setup Wind Mobile's APN
Click to expand...
Click to collapse
Wind uses a the same bands as T-mobile but I believe the LTE is not compatible.

carlos1984 said:
I am asking if there is a way to make my galaxy s3 i747m useable with wind mobile. Im asking because I remeber that with the Galaxy s2x from telus and I believe rogers you could flash a t-mobile rom and be able to us it on the wind network. I am wondering if anyone has tried this? and what happened.
Click to expand...
Click to collapse
Go to this site, follow the instructions, unlock the phone then test a wind sim... if you search inlock in this forom you will find mant posts, I wouldn't flash it until you try this. No root required btw....
http://forums.redflagdeals.com/free-...-bell-1266487/

I have a rogers samsung i747 , can i use this with wind mobile??? please help
i Have a rogers samsung i747 , can i use this with wind mobile??? please help

daliamartinez99 said:
i Have a rogers samsung i747 , can i use this with wind mobile??? please help
Click to expand...
Click to collapse
Simple answer Yes but it's very annoying to do.
The device itself 100% supports WIND's Network to it's fullest BUT the SGH-1747m has the bands required Specifically the 1700Mhz disabled in the NV RAM
http://anhsblog.com/how-to-enable-t-mobile-hspa-aws-bands-on-att-galaxy-s3-sgh-i747/
http://forum.xda-developers.com/showthread.php?t=2344627 (For my bell phone being updated past which version this guide was wrote for the code in this guide does not work you must use *#0808# )
One you follow that and reboot you will be on Wind's Network... but at least for me every time it reboots I lost access and the NV RAM resets...
What I want to know is there a ROM out there or a way to permanently rewrite the NV RAM so I never have to do this
Samsung is putting responsibility for this 'disabled feature' on the Telecom companies saying it is up to their discretion on what bands they allow. Yet bell is saying that it's up to Samsung one which bands are allowed as Bell does not do any modifications to the NV RAM. Whose telling the truth who knows.... Samsung did hint that it is possible to put permanently enable the baseband (but I would have to speak to bell) Now the funny thing is if I give Samsung the IMEI of my device (which was purchased at a Bell location) Samsung is making a statement that my SGH-i747m is NOT a registered Canadian Galaxy S3... and it MUST be an international S3.... Yet bell has it as it was originally their's and Sold by them and originally activated on their network.
I don't know why but I feel like the SGH-i747m's have some hidden backdoor deals with them has anyone tried to install Wind or T-Mobile ROMS from the T999L to the SGH-i747m and if so was it successful? or is there a Custom ROM that will work?

Just a *bump* to this, if there is any way of not having to plug into a laptop to reflash the NV to re enable functionality with wind will someone please share? I've read of some people having scripts that run in busybox or other similar type areas
Can anyone please share with me said script and walk me through the necessary means of implementing it correctly so my girlfriend stops whining at me every time her phone dies demanding I fix it, even though I've offered to show her how to click the mouse twice and do it her self.

Hi,
Is there a way yet to make the 747M fully operational with Wind Mobile? Seems like SOMEONE should be able to figure this out for us.
In your guys' opinion, if I flashed a ROM for the T-Mobile device, whats the worst that could happen? Soft brick or hard brick?
Would flashing a T999 modem be enough?

No Wind network after restarting my galaxy s3 (i747)
Hi, have you yet figured out how to permanently rewrite the NV ram on a galaxy i747 so that the phone recognizes the Wind network even after the reboot? Thanks in advance.

I haven't. I ended up getting an S5 through wind.
Sent from my SM-G900W8 using Tapatalk

s32ialx said:
Simple answer Yes but it's very annoying to do.
The device itself 100% supports WIND's Network to it's fullest BUT the SGH-1747m has the bands required Specifically the 1700Mhz disabled in the NV RAM
http://anhsblog.com/how-to-enable-t-mobile-hspa-aws-bands-on-att-galaxy-s3-sgh-i747/
http://forum.xda-developers.com/showthread.php?t=2344627 (For my bell phone being updated past which version this guide was wrote for the code in this guide does not work you must use *#0808# )
One you follow that and reboot you will be on Wind's Network... but at least for me every time it reboots I lost access and the NV RAM resets...
What I want to know is there a ROM out there or a way to permanently rewrite the NV RAM so I never have to do this
Samsung is putting responsibility for this 'disabled feature' on the Telecom companies saying it is up to their discretion on what bands they allow. Yet bell is saying that it's up to Samsung one which bands are allowed as Bell does not do any modifications to the NV RAM. Whose telling the truth who knows.... Samsung did hint that it is possible to put permanently enable the baseband (but I would have to speak to bell) Now the funny thing is if I give Samsung the IMEI of my device (which was purchased at a Bell location) Samsung is making a statement that my SGH-i747m is NOT a registered Canadian Galaxy S3... and it MUST be an international S3.... Yet bell has it as it was originally their's and Sold by them and originally activated on their network.
I don't know why but I feel like the SGH-i747m's have some hidden backdoor deals with them has anyone tried to install Wind or T-Mobile ROMS from the T999L to the SGH-i747m and if so was it successful? or is there a Custom ROM that will work?
Click to expand...
Click to collapse
Hi, have you yet figured out how to permanently rewrite the NV ram on a galaxy i747 so that the phone recognizes the Wind network even after the reboot? Thanks in advance.

[Q] I have a T-Mobile S4 that refuses to select LTE for other carriers

Hey Y'all,
I've seen the other threads and I know that LTE works for AT&T but for the life of me, I cannot get it to select LTE
at all. I've tried the connections-->network mode menu and whenever I select LTE+WCDMA+GSM it always reverts
back to WCDMA+GSM the moment i back out of the menu. Also when using the *#2263# and I try and select it
via that way, I get bars but no data. Can anyone help me shed some light on this?
Is there another way to prioritize LTE? Do i need to flash a new kernel or modem?
Thanks guys!

Is lt available in your area?

mgbotoe said:
Is lt available in your area?
Click to expand...
Click to collapse
Yea that's whats bugging me. I put the AT&T sim back into my GN II and it gets LTE easy. I'm still within the return period
I just dont know if I'm missing a step or if the phone is defective. But it gets T-Mobile LTE ( in what few places get it
where I'm at ). So I don't know

Did you flash the att radio?
Sent from my SGH-M919 using Tapatalk 2

elesbb said:
Did you flash the att radio?
Sent from my SGH-M919 using Tapatalk 2
Click to expand...
Click to collapse
No I did not. I just did the unlock method that was posted here. So forgive the noob question, but I would have to flash
the AT&T radio to get LTE? Or is this just a troubleshooting method you want me to try? I just thought I wouldn't have
to flash the AT&T radio since it supported the bands Out-the-box.

Infornography said:
No I did not. I just did the unlock method that was posted here. So forgive the noob question, but I would have to flash
the AT&T radio to get LTE? Or is this just a troubleshooting method you want me to try? I just thought I wouldn't have
to flash the AT&T radio since it supported the bands Out-the-box.
Click to expand...
Click to collapse
Technically, you shouldn't have to. It supports 700 MHz LTE out of the box. The T-Mobile S4 is the "best" version because it supports both AT&T and T-Mobile bands out of the box. The AT&T S4 supports AT&T and T-Mobile LTE out of the box, but not T-Mobile HSPA+ (AWS) without a mod.

Product F(RED) said:
Technically, you shouldn't have to. It supports 700 MHz LTE out of the box. The T-Mobile S4 is the "best" version because it supports both AT&T and T-Mobile bands out of the box. The AT&T S4 supports AT&T and T-Mobile LTE out of the box, but not T-Mobile HSPA+ (AWS) without a mod.
Click to expand...
Click to collapse
Yes but without the proper radio. How's it supposed to know what to connect to
Sent from my SGH-M919 using Tapatalk 2

Product F(RED) said:
Technically, you shouldn't have to. It supports 700 MHz LTE out of the box. The T-Mobile S4 is the "best" version because it supports both AT&T and T-Mobile bands out of the box. The AT&T S4 supports AT&T and T-Mobile LTE out of the box, but not T-Mobile HSPA+ (AWS) without a mod.
Click to expand...
Click to collapse
****. That's what I thought. Oh well. I'll do an exchange then at T-mobile. Hopefully it's just this phone. Thanks guys.

Infornography said:
No I did not. I just did the unlock method that was posted here. So forgive the noob question, but I would have to flash
the AT&T radio to get LTE? Or is this just a troubleshooting method you want me to try? I just thought I wouldn't have
to flash the AT&T radio since it supported the bands Out-the-box.
Click to expand...
Click to collapse
It's more along the lines of a troubleshooting method. I believe I read another thread exactly like yours and the solution was to flash att radio. Think of it like a regular am/fm radio. All the hardware is there, but without something to control what stations it can play, how's it gonna know what to play?
Sent from my SGH-M919 using Tapatalk 2

elesbb said:
Yes but without the proper radio. How's it supposed to know what to connect to
Sent from my SGH-M919 using Tapatalk 2
Click to expand...
Click to collapse
The network is decided by the SIM card (the entire purpose of GSM). With an AT&T SIM, he should still be able to pick up T-Mobile LTE (AWS LTE is what T-Mobile uses and it's supported in all AT&T devices). My AT&T Note 2 gets T-Mobile LTE, just like my T-Mobile Note 2 does.
Also you can't cross-flash modems because the partition sizes are different; ROMs may be compatible (that's the case with the Note 2) but not the modem. If you flash another device's modem, you'll lose your IMEI (until you flash back the correct one) and your device will bootloop with no signal. From experience.
IGNORE THE GUY TELLING YOU TO FLASH THE AT&T RADIO. YOU'LL BRICK YOUR PHONE.
----------------------------
I just remembered the reason. AT&T won't activate LTE on a non-AT&T phone (on their end on the computer) unless you lie to them and give them the IMEI of an AT&T device. 10000% sure. Fixed this for another guy with a T-Mobile Note 2 trying to use it on AT&T. I have one for you. You go on chat online and tell them you're not getting LTE. They ask you for an IMEI number of an AT&T LTE device (it doesn't have to be your S4's) and then they can activate LTE on their end. I happen to have an IMEI of an in-store HTC One on hand. I'll PM you.
Here's the thread where I helped the guy (last page): http://forum.xda-developers.com/showthread.php?t=1953015

Product F(RED) said:
The network is decided by the SIM card (the entire purpose of GSM). With an AT&T SIM, he should still be able to pick up T-Mobile LTE (AWS LTE is what T-Mobile uses and it's supported in all AT&T devices). My AT&T Note 2 gets T-Mobile LTE, just like my T-Mobile Note 2 does.
Also you can't cross-flash modems because the partition sizes are different; ROMs may be compatible (that's the case with the Note 2) but not the modem. If you flash another device's modem, you'll lose your IMEI (until you flash back the correct one) and your device will bootloop with no signal. From experience.
IGNORE THE GUY TELLING YOU TO FLASH THE AT&T RADIO. YOU'LL BRICK YOUR PHONE.
----------------------------
I just remembered the reason. AT&T won't activate LTE on a non-AT&T phone (on their end on the computer) unless you lie to them and give them the IMEI of an AT&T device. 10000% sure. Fixed this for another guy with a T-Mobile Note 2 trying to use it on AT&T. I have one for you. You go on chat online and tell them you're not getting LTE. They ask you for an IMEI number of an AT&T LTE device (it doesn't have to be your S4's) and then they can activate LTE on their end. I happen to have an IMEI of an in-store HTC One on hand. I'll PM you.
Here's the thread where I helped the guy (last page): http://forum.xda-developers.com/showthread.php?t=1953015
Click to expand...
Click to collapse
Thanks for all the help guys. I already have the GN-II's imei listed on my account however and with the LTE feature code on my account thanks to my buddy who is a rep at the att store. I'm gonna meet him in a few minutes to get another sim card just to give this another shot before i do an exchange at t-mobile seeing as t-mobile is more anal about doing exchanges unless they can physically verify in store what you're *****ing about.

Product F(RED) said:
The network is decided by the SIM card (the entire purpose of GSM). With an AT&T SIM, he should still be able to pick up T-Mobile LTE (AWS LTE is what T-Mobile uses and it's supported in all AT&T devices). My AT&T Note 2 gets T-Mobile LTE, just like my T-Mobile Note 2 does.
Also you can't cross-flash modems because the partition sizes are different; ROMs may be compatible (that's the case with the Note 2) but not the modem. If you flash another device's modem, you'll lose your IMEI (until you flash back the correct one) and your device will bootloop with no signal. From experience.
IGNORE THE GUY TELLING YOU TO FLASH THE AT&T RADIO. YOU'LL BRICK YOUR PHONE.
----------------------------
I just remembered the reason. AT&T won't activate LTE on a non-AT&T phone (on their end on the computer) unless you lie to them and give them the IMEI of an AT&T device. 10000% sure. Fixed this for another guy with a T-Mobile Note 2 trying to use it on AT&T. I have one for you. You go on chat online and tell them you're not getting LTE. They ask you for an IMEI number of an AT&T LTE device (it doesn't have to be your S4's) and then they can activate LTE on their end. I happen to have an IMEI of an in-store HTC One on hand. I'll PM you.
Here's the thread where I helped the guy (last page): http://forum.xda-developers.com/showthread.php?t=1953015
Click to expand...
Click to collapse
You dont need to be so rude first of all. Secondly I never told him to do anything, i simply asked if he flashed the radio and told him it was a troubleshooting method. Meaning, research it before you do it. Just like anything else.
Secondly, others have gotten LTE on their T-Mobile devices without talking to ATT. I already stated i was using the top of my head for diagnosing and never did i tell him to do anything. And since i was going off the top of my head, i remember being able to flash ATT radios to the S3 and S2 of T-Mobile. Also, he has a T-MOBILE DEVICE wanting ATT LTE on it, not the other way around as you are thinking.. Any how, we are two very smart people, we need not argue with one another and telling the op to ignore someone. Thats just flat out rude. Especially since i never said "go flash the ATT radio" i simply asked a question.
To the OP,
Have you set up your APN configurations for ATT?

elesbb said:
You dont need to be so rude first of all. Secondly I never told him to do anything, i simply asked if he flashed the radio and told him it was a troubleshooting method. Meaning, research it before you do it. Just like anything else.
Secondly, others have gotten LTE on their T-Mobile devices without talking to ATT. I already stated i was using the top of my head for diagnosing and never did i tell him to do anything. And since i was going off the top of my head, i remember being able to flash ATT radios to the S3 and S2 of T-Mobile. Also, he has a T-MOBILE DEVICE wanting ATT LTE on it, not the other way around as you are thinking.. Any how, we are two very smart people, we need not argue with one another and telling the op to ignore someone. Thats just flat out rude. Especially since i never said "go flash the ATT radio" i simply asked a question.
To the OP,
Have you set up your APN configurations for ATT?
Click to expand...
Click to collapse
I'm sorry if I came off as rude to you; I was merely trying to tell him to not cross-flash S4 modems as it can brick the device; you have to be careful what you tell people to do if they're coming to you for help. It's not like with the S2. I correctly said he has a T-Mobile device and wants AT&T LTE on it, and as I said before, I've fixed the issue with someone who was in the same situation with a T-Mobile Galaxy Note 2. Like I stated, the phone itself is capable of 700 MHz LTE, which is what AT&T uses. You don't have to flash any modems. It should just work. The fix is above in the last paragraph.
Supported frequencies: http://www.samsung.com/us/mobile/cell-phones/SGH-M919ZWATMB-specs

Sorry guys but I just switched sims and confirmed I have an lte imei and feature on my acct but no dice.

Infornography said:
Sorry guys but I just switched sims and confirmed I have an lte imei and feature on my acct but no dice.
Click to expand...
Click to collapse
Did you try changing APN configurations?

Update: I switched the phone, did the unlock process again and....it still refuses to select LTE. I dunno. At this point I'm at a loss and thinking that it might have something to do with the unlock process itself. I might just do one more exchange and pay for the unlock. Can someone who has AT&T LTE on their S 4 do me a favor and post their APN settings so I can compare just to be absolutely sure it's correct?

I have a T-Mobile s4 that I put my AT&T SIM card in out of my AT&T galaxy note 2 and lte works fine. My issue is, I have random losses of network signal then it just comes back moments later while using the T-Mobile s4 with my AT&T SIM card. I used the unlock method posted in the T-Mobile s4 thread, rooted and flashed the Jedi Rom from the T-Mobile s4 thread. Can anyone shed some light on this issue?
Sent From An Incognegro Galaxy Note 2

[Q] Flash T-Mobile Rom on AT&T M8??

I have an AT&T M8 which I unlocked, rooted and s-off'd while under AT&T contract. I then decided to switch to T-Mobile and give this device to my 11-year old son. What I'd like to know/understand is whether I can flash some of the T-Mobile Roms I see in this forum on the AT&T M8 and it work with T-Mobile network? Or do I still need to flash the AT&T Roms?
Thanks in advance for any help advice!
Johnny

SIM unlocked would allow you to use it on stock AT&T too if you choose to. Also everything seems to be interchangeable unless noted. I would go for Rom with T-Mobile's Wi-Fi calling, which is amazing btw for those who get sorry service.
Sent from my HTC One_M8 using XDA Free mobile app

jteunis said:
I have an AT&T M8 which I unlocked, rooted and s-off'd while under AT&T contract. I then decided to switch to T-Mobile and give this device to my 11-year old son. What I'd like to know/understand is whether I can flash some of the T-Mobile Roms I see in this forum on the AT&T M8 and it work with T-Mobile network? Or do I still need to flash the AT&T Roms?
Thanks in advance for any help advice!
Johnny
Click to expand...
Click to collapse
You should be able to flash either T-mobile or AT&T (Even roms in the international section, I would recommend InsertCoin) roms without any issues. Eleven and has a M8? Damn, i'm jealous lol.

Da Kine said:
You should be able to flash either T-mobile or AT&T (Even roms in the international section, I would recommend InsertCoin) roms without any issues. Eleven and has a M8? Damn, i'm jealous lol.
Click to expand...
Click to collapse
Thanks for the information to the both ^^^^^^^^ of you! I appreciate it. Yes , he is 11 years old, but a good respectful kid and does well in school. With that I'm okay with giving him nice things. If that should change, then Daddy gets the M8 back!!! LOL

Somewhat related question... If I u were to use an AT&T model on T-Mobile, would everything work correctly, 3g/4g? Comparing the frequency bands online, the AT&T model is missing the 1700 band that the T-Mobile version has. Does that mean the phone doesn't have the hardware components to connect to it? Or is it capable of connecting, just that AT&T doesn't use that band? I'm asking because I want to pickup a used m8, but the T-Mobile version is going for around $100 more than all the other carrier's versions... Could I just SIM unlock an AT&T version and be set, or will some things not work?

316224348996
los1223 said:
Somewhat related question... If I u were to use an AT&T model on T-Mobile, would everything work correctly, 3g/4g? Comparing the frequency bands online, the AT&T model is missing the 1700 band that the T-Mobile version has. Does that mean the phone doesn't have the hardware components to connect to it? Or is it capable of connecting, just that AT&T doesn't use that band? I'm asking because I want to pickup a used m8, but the T-Mobile version is going for around $100 more than all the other carrier's versions... Could I just SIM unlock an AT&T version and be set, or will some things not work?
Click to expand...
Click to collapse
That's a good question and hoping someone will have the answer. In the meantime I was able to SIM unlock my son's ATT M8 and install a TMobile SIM using stock ATT rom. So far everything has worked and the 4G symbol does appear in the task bar, although I'm not sure if that really means he's getting 4G. I did have to manually enter the APN settings so he could get mobile data when not connected to wifi.

Tmobile apn settings
Would you mind posting the apn settings that allowed your sons phone to work on 4g and send mms? Its the main reason I'm looking into flashing a Rom and would save me a lot of trouble as I have spent quite a bit of time searching for one that works on my phone and none seem to do the trick.

In need of a lil guidance?

Ok so I need some advice. I was finally able to root my Galaxy S6 recently with Odin/CF-AutoRoot. Now i've got a few questions before I go any farther. The main reason I wanted to root my phone was in hopes to edit my APN's and get my data working. This galaxy is on Marshmallow, the Sprint/Boost Mobile model. I bought it off ebay, when i first got it I took it to AT&T to get service on it. They got my talk/text working but not data because there was no APN options under Settings/mobile networks/etc. That option was not there. I'm hoping if I flash a rom that will restore my missing APN options.
-I need someone to recommend me a rom. I'm looking for a stable rom, preferable debloated too. I just want the phone to function as it normally should and have the apn options back.
-Also, do I need to install a custom kernal too?

This is the forum for Sprint Galaxy S6. Did you buy the Sprint model or the AT&T model.
From what I understand, they are different.
Sprint is on CDMA network and AT&T is GSM, and the two are not compatible.
Sent from my SM-G920P using XDA-Developers mobile app

DarkHorse420 said:
Ok so I need some advice. I was finally able to root my Galaxy S6 recently with Odin/CF-AutoRoot. Now i've got a few questions before I go any farther. The main reason I wanted to root my phone was in hopes to edit my APN's and get my data working. This galaxy is on Marshmallow, the Sprint/Boost Mobile model. I bought it off ebay, when i first got it I took it to AT&T to get service on it. They got my talk/text working but not data because there was no APN options under Settings/mobile networks/etc. That option was not there. I'm hoping if I flash a rom that will restore my missing APN options.
-I need someone to recommend me a rom. I'm looking for a stable rom, preferable debloated too. I just want the phone to function as it normally should and have the apn options back.
-Also, do I need to install a custom kernal too?
Click to expand...
Click to collapse
It sounds to me like you want to use the Sprint S6 on AT&Ts network. Should be possible. However, I believe it needs to be unlocked first in order to use the GSM bands. This may be one of the issues.
Secondly, I recommend doing everything yourself as there aren't many ROMs available for the Sprint S6, so tweaking everything is something you personally will have to do to make it work on AT&T.
Thirdly, why did you get a Sprint model if you wanted to use it on AT&T? I recommend talking to sprint to help you. Custom kernel has nothing to do with carriers, so using the one you have now will be fine.
IMHO: You should have done your research first. Honestly if you wanted to use it strictly for AT&T then you should have bought an AT&T variant, all your headaches and issues wouldn't exist lol. That being said, what you want is 100% feasible, but not by the average Joe. It requires some tinkering and know how and knowing how to navigate around the device.
hotwired34 said:
This is the forum for Sprint Galaxy S6. Did you buy the Sprint model or the AT&T model.
From what I understand, they are different.
Sprint is on CDMA network and AT&T is GSM, and the two are not compatible.
Sent from my SM-G920P using XDA-Developers mobile app
Click to expand...
Click to collapse
Just an FYI: You are right, but you're not fully right. lol
Sprint and Verizon CDMA phones normally have GSM capabilities for overseas business travel. In order to unlock the GSM bands, you must get the device unlocked, or tell and pay sprint that you are using it overseas. International Unlocking allows for overseas use, Domestic unlocking allows for USA GSM Carrier use. My phone is International and Domestically unlocked thanks to a very kind and generous xda member.
However, a GSM phone will not work on CDMA networks, just cause they lack the hardware. There really isn't a niche for it so they don't make them.