Hello all,
Apologies in advance, I have been away from the flashing scene since Nexus 4 days. I recently purchased a US unlocked S7E from Best Buy. I am wondering if:
1) Can I flash the AT&T firmware so that I can gain wifi calling, and other at&t features like HD voice?
2) Would there be any drawbacks to doing that?
I purchased unlocked since I am considering switching to T-Mobile soon. I heard that T-Mobile wifi calling and HD Voice work out of the box with stock, unlocked firmware, but apparently AT&T doesn't work without the ATT firmware... Is that correct?
Thanks,
Flashed the AT&T firmware on a TMobile S7e to get those features and have had no down side to the change.
ShrekOpher said:
Flashed the AT&T firmware on a TMobile S7e to get those features and have had no down side to the change.
Click to expand...
Click to collapse
That's good news, are you able to use Samsung Pay, or does flashing trip KNOX? Also, do you know if it is possible to flash back without issue?
kcm117 said:
That's good news, are you able to use Samsung Pay, or does flashing trip KNOX? Also, do you know if it is possible to flash back without issue?
Click to expand...
Click to collapse
I've gone back and forth a few times no Samsung pay issues either. This does not yep Knox. If you are on the U phone make sure you flash the correct version of the att firmware. Not sure if the U phone has V4 bootloader or not yet.
ShrekOpher said:
I've gone back and forth a few times no Samsung pay issues either
Click to expand...
Click to collapse
Excellent, thanks a ton! Going to research how to flash now.
kcm117 said:
Excellent, thanks a ton! Going to research how to flash now.
Click to expand...
Click to collapse
There is a version out for AT&T with B4. Welcome bud!
Sent from my SM-G935U using Tapatalk
Related
Hey guys. I just bought a Verizon S7 Edge today and I've read online I can convert it to a full T-Mobile version with wifi calling, get updates, etc. Is there a guide to do this anywhere? I searched, but couldn't find it.
I wouldnt recoomend it. Once you flash the T-Mobile rom, you cannot go back to Verizon due to different bootloader versions, which means you will lose your warranty.
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nahtnam said:
I wouldnt recoomend it. Once you flash the T-Mobile rom, you cannot go back to Verizon due to different bootloader versions, which means you will lose your warranty.
Sent from my SM-G935T using Tapatalk
Click to expand...
Click to collapse
Wouldn't you be able to flash back to Verizon after? I'd like the wifi calling and upcoming updates for better lte speeds on T-Mobile.
BoboBrazil said:
Wouldn't you be able to flash back to Verizon after? I'd like the wifi calling and upcoming updates for better lte speeds on T-Mobile.
Click to expand...
Click to collapse
No you will not be able to flash back to Verizon because T-Mobile is on bootloader v3 and Verizon is on v2. You cannot go down versions. It's entirely possible, in fact it's exactly what I did but I do regret the move. I would recommend flashing the U firmware which is the US unlocked version of the s7e. That will unlock pretty much all of the bands and you should be able to get wifi calling and you can flash back to Verizon.
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nahtnam said:
No you will not be able to flash back to Verizon because T-Mobile is on bootloader v3 and Verizon is on v2. You cannot go down versions. It's entirely possible, in fact it's exactly what I did but I do regret the move. I would recommend flashing the U firmware which is the US unlocked version of the s7e. That will unlock pretty much all of the bands and you should be able to get wifi calling and you can flash back to Verizon.
Sent from my SM-G935T using Tapatalk
Click to expand...
Click to collapse
Thanks, do you think the u firmware will get the updates for the 4x4 mimi etc that are coming to T-Mobile shortly for faster speeds? Also, is it possible Verizon will eventually go to a v3 bootloader and thus be able to flash back again? Do you have a link to the guide to be able to flash the U firmware?
BoboBrazil said:
Thanks, do you think the u firmware will get the updates for the 4x4 mimi etc that are coming to T-Mobile shortly for faster speeds? Also, is it possible Verizon will eventually go to a v3 bootloader and thus be able to flash back again? Do you have a link to the guide to be able to flash the U firmware?
Click to expand...
Click to collapse
Yes 4x4 mimo should be twice as fast as Tmobile. There's a chance that Verizon and U will be updated to bl3 but there's no way to know. Honestly I would flash U and stick with it.
http://forum.xda-developers.com/ver...de-flashing-sm-935u-firmware-verizon-t3415145
Sent from my SM-G935T using Tapatalk
nahtnam said:
Yes 4x4 mimo should be twice as fast as Tmobile. There's a chance that Verizon and U will be updated to bl3 but there's no way to know. Honestly I would flash U and stick with it.
http://forum.xda-developers.com/ver...de-flashing-sm-935u-firmware-verizon-t3415145
Sent from my SM-G935T using Tapatalk
Click to expand...
Click to collapse
Do you think the U version will get these updates? http://www.androidpolice.com/2016/0...speeds-takes-dump-verizon-sprint-att-process/
Also does flashing U firmware void warranty or trip knox?
BoboBrazil said:
Do you think the U version will get these updates? http://www.androidpolice.com/2016/0...speeds-takes-dump-verizon-sprint-att-process/
Also does flashing U firmware void warranty or trip knox?
Click to expand...
Click to collapse
I don't think U will get mimo but do you realistically need it? I dont know about warranty, but it will not trip knox.
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nahtnam said:
I don't think U will get mimo but do you realistically need it? I dont know about warranty, but it will not trip knox.
Sent from my SM-G935T using Tapatalk
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Click to collapse
Not really, but faster speeds are always good in some slower areas.
BoboBrazil said:
Not really, but faster speeds are always good in some slower areas.
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Click to collapse
Fair point. Just know that if you do this, you cannot go back and it will void warranty. If you want to do it, just download the tmobile version firmware, download odin from that post that I linked to and flash using the instructions from the post.
nahtnam said:
Fair point. Just know that if you do this, you cannot go back and it will void warranty. If you want to do it, just download the tmobile version firmware, download odin from that post that I linked to and flash using the instructions from the post.
Click to expand...
Click to collapse
Thanks, will try the u firmware first and them go to T-Mobile if unhappy. That would be possible correct?
BoboBrazil said:
Thanks, will try the u firmware first and them go to T-Mobile if unhappy. That would be possible correct?
Click to expand...
Click to collapse
Yes, that's what I did originally. You just can't go from T-Mobile -> U.
nahtnam said:
Yes, that's what I did originally. You just can't go from T-Mobile -> U.
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Click to collapse
Cool, U has wifi calling for T-Mobile though?
Not sure, sorry. I only used U for a few days.
Don't matter anymore since this phone my get recall as well!!!
noobiedev83 said:
Don't matter anymore since this phone my get recall as well!!!
Click to expand...
Click to collapse
No. It won't. 1 S7 has had issue and the story had very little details. Also, almost 30 of the 92 Note 7 issues reported in the states turns out to be bs.
BoboBrazil said:
Cool, U has wifi calling for T-Mobile though?
Click to expand...
Click to collapse
Yes. I have an unlocked S7E which is the firmware in question and I'm on TMO. It does work. Nothing TMO offers right now has had issues as far as I can see. :good:
aergern said:
No. It won't. 1 S7 has had issue and the story had very little details. Also, almost 30 of the 92 Note 7 issues reported in the states turns out to be bs.
Yes. I have an unlocked S7E which is the firmware in question and I'm on TMO. It does work. Nothing TMO offers right now has had issues as far as I can see. :good:
Click to expand...
Click to collapse
Where do I turn on wifi calling? I couldn't find it in the settings.
-edit- Nevermind, I turned off the phone, put my sim card in, and restarted and it popped up. It wasn't showing up due to the fact I put the sim card in while the phone was on I guess.
BoboBrazil said:
Where do I turn on wifi calling? I couldn't find it in the settings.
-edit- Nevermind, I turned off the phone, put my sim card in, and restarted and it popped up. It wasn't showing up due to the fact I put the sim card in while the phone was on I guess.
Click to expand...
Click to collapse
Hii,
Sorry for the questions, but it would be really nice if you could help me.
I recently got a s7 edge verizon model as it was way cheaper. I wanted your inputs on flashing either the unlocked or tmobile version. i understand that U version is better as there is chance to revert to verizon ROM.
Sorry i do not know certain basic things.
Does verizon model have all bands and just verizon did not open them up??
Do u get all bands on U version that tmobile uses once you flash with U-version
Can u get tmobile wifi calling HD voice features on the U-version
Any other advantages and disadvantages of either version?
other than the bootloader v2 vs v3.
will i get get updates with tmobile and what about samsung pay and android pay?
will samsung pay and android pay work on flashed Unlocked ROMS, i do not intend on rooting the phone.
If i flash the tmobile version will it be tmobile sim locked ??
BoboBrazil said:
Do you think the U version will get these updates? http://www.androidpolice.com/2016/0...speeds-takes-dump-verizon-sprint-att-process/
Also does flashing U firmware void warranty or trip knox?
Click to expand...
Click to collapse
you can flash the U update and flash the CP of the Tmobile firmware to get the 4x4 mino and etc.
---------- Post added at 06:22 AM ---------- Previous post was at 06:20 AM ----------
yashwanth13 said:
Hii,
Sorry for the questions, but it would be really nice if you could help me.
I recently got a s7 edge verizon model as it was way cheaper. I wanted your inputs on flashing either the unlocked or tmobile version. i understand that U version is better as there is chance to revert to verizon ROM.
Sorry i do not know certain basic things.
Does verizon model have all bands and just verizon did not open them up??
Do u get all bands on U version that tmobile uses once you flash with U-version
Can u get tmobile wifi calling HD voice features on the U-version
Any other advantages and disadvantages of either version?
other than the bootloader v2 vs v3.
will i get get updates with tmobile and what about samsung pay and android pay?
will samsung pay and android pay work on flashed Unlocked ROMS, i do not intend on rooting the phone.
If i flash the tmobile version will it be tmobile sim locked ??
Click to expand...
Click to collapse
I have the U verison you do not get the video calling but you get HD voice, wifi calling, and etc. You get all the bands that each carrier uses on the U model.
leanright said:
I have the U verison you do not get the video calling but you get HD voice, wifi calling, and etc. You get all the bands that each carrier uses on the U model.
Click to expand...
Click to collapse
Exactly what i wanted.
Thanks, what about samsung pay and android pay, will they work?
So I have seen multiple people here on the forum claiming to do it or wanting to do it and I am a bit confused. I have an s7 edge on contract from ATT. Can I do this? If I flash T Mobile's firmware on this does this make my phone usable with a T Mobile sim?
Thank you
s7fnatic said:
So I have seen multiple people here on the forum claiming to do it or wanting to do it and I am a bit confused. I have an s7 edge on contract from ATT. Can I do this? If I flash T Mobile's firmware on this does this make my phone usable with a T Mobile sim?
Thank you
Click to expand...
Click to collapse
Yes you can and only thing I've noticed not working is video calling and WiFi calling with it seems I get better signal with there's.
bec48 said:
Yes you can and only thing I've noticed not working is video calling and WiFi calling with it seems I get better signal with there's.
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Click to collapse
Yes to both questions?
s7fnatic said:
So I have seen multiple people here on the forum claiming to do it or wanting to do it and I am a bit confused. I have an s7 edge on contract from ATT. Can I do this? If I flash T Mobile's firmware on this does this make my phone usable with a T Mobile sim?
Thank you
Click to expand...
Click to collapse
Yes you can flash it. I'm currently on T Mobile with ATT.
zombo91 said:
Yes you can flash it. I'm currently on T Mobile with ATT.
Click to expand...
Click to collapse
Thank you. I am going to go ahead and give it a try.
bec48 said:
Yes you can and only thing I've noticed not working is video calling and WiFi calling with it seems I get better signal with there's.
Click to expand...
Click to collapse
Can you advise the procedure? I'm currently permanently locked to AT&T network and would like to use a carrier (SK Telecom - Korea).
Wouldn't you still need to SIM unlock your AT&T phone to use on T-mobile network? I don't think just flashing another carriers ROM will allow you to use their network. Am I Wrong in thinking this way?
bec48 said:
Yes you can and only thing I've noticed not working is video calling and WiFi calling with it seems I get better signal with there's.
Click to expand...
Click to collapse
Was the device on the PK1 firmware before flashing to tmobile??
jabreu203 said:
Wouldn't you still need to SIM unlock your AT&T phone to use on T-mobile network? I don't think just flashing another carriers ROM will allow you to use their network. Am I Wrong in thinking this way?
Click to expand...
Click to collapse
I had the same question and that's why I haven't done anything on my phone so far. Also it does not help that I am a noob with all these things and dont want to mess up my phone since this is my daily driver.
vip_lexus147 said:
Was the device on the PK1 firmware before flashing to tmobile??
Click to expand...
Click to collapse
I am not sure if I am looking at the right place but I think you are looking for the build number right? Mine is mmb29m.g935aucu4apj4
ronkim83 said:
Can you advise the procedure? I'm currently permanently locked to AT&T network and would like to use a carrier (SK Telecom - Korea).
Click to expand...
Click to collapse
Go to http://www.cellunlocker.net/ and get an unlock code for your phone. I unlocked my tmobile S7 edge this way right out of the gate worked just fine.
ShrekOpher said:
Go to http://www.cellunlocker.net/ and get an unlock code for your phone. I unlocked my tmobile S7 edge this way right out of the gate worked just fine.
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Click to collapse
I am confused. Can I not flash the phone with t mob firmware without unlocking? I thought this was just a software restriction and would have been removed by flashing a new firmware.
s7fnatic said:
I am confused. Can I not flash the phone with t mob firmware without unlocking? I thought this was just a software restriction and would have been removed by flashing a new firmware.
Click to expand...
Click to collapse
Flashing the phones firmware will not carrier unlock the device. That is tied to the IMEI. It will boot up the Tmobile software, but it still will only work on AT&T network.
Also in order to unlock the device from AT&T they will most likely bill you for the remaining value of the device as soon as you request an unlock code. You cannot take a phone from one carrier to another unless it is fully paid off.
I have an Unlocked AT&T S7 and I can put in a T-Mobile sim and it works. So why Flash T-Mobile onto an AT&T phone if its Unlocked??? My AT&T S7 is Paid for in Full.
My question is, if you do flash T-Mobile firmware on AT&T phone will you get OTA updates off of T-Mobile, like when Nougat comes out????? Also would you still have wifi calling and get all the LTE bands of a T-Mobile phone????
tailgunner9 said:
I have an Unlocked AT&T S7 and I can put in a T-Mobile sim and it works. So why Flash T-Mobile onto an AT&T phone if its Unlocked??? My AT&T S7 is Paid for in Full.
My question is, if you do flash T-Mobile firmware on AT&T phone will you get OTA updates off of T-Mobile, like when Nougat comes out????? Also would you still have wifi calling and get all the LTE bands of a T-Mobile phone????
Click to expand...
Click to collapse
Yes. All the edge models have identical hardware. Their only differentiating factor is the firmware they run. I flashed the unlocked firmware onto my AT&T model and now get updates directly from Samsung. If you flash the T-mobile firmware on the AT&T device, all features will work and updates will come from T-Mobile. Same would work if you flash the AT&T firmware onto a T-Mobile variant. Or Verizon to Sprint, Sprint to AT&T, etc.
Sent from my SM-G935U using Tapatalk
stew1411 said:
Yes. All the edge models have identical hardware. Their only differentiating factor is the firmware they run. I flashed the unlocked firmware onto my AT&T model and now get updates directly from Samsung. If you flash the T-mobile firmware on the AT&T device, all features will work and updates will come from T-Mobile. Same would work if you flash the AT&T firmware onto a T-Mobile variant. Or Verizon to Sprint, Sprint to AT&T, etc.
Sent from my SM-G935U using Tapatalk
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Click to collapse
So you are saying this about S7 Edge, does this work the same for the AT&T S7 SM-G930A? Mine is not the Factory Unlocked model but I got the unlock code from AT&T. I thought the firmware came from the carrier and not Samsung on updates on a carrier branded phone???
So if I flash T-Mobile into my AT&T S7, I can also flash it back to AT&T firmware should I go back to AT&T???
Think you are talking about flashing firmware on your that is original for the Factory Unlocked version, think its SM-G930F
tailgunner9 said:
So you are saying this about S7 Edge, does this work the same for the AT&T S7 SM-G930A? Mine is not the Factory Unlocked model but I got the unlock code from AT&T. I thought the firmware came from the carrier and not Samsung on updates on a carrier branded phone???
So if I flash T-Mobile into my AT&T S7, I can also flash it back to AT&T firmware should I go back to AT&T???
Think you are talking about flashing firmware on your that is original for the Factory Unlocked version, think its SM-G930F
Click to expand...
Click to collapse
Well people on the S7 edge have flashed the tmo firmware on their AT&T models. Updates come from carrier on branded phones. So if you have an AT&T phone and flash another carriers firmware, it would only be branded by the physical logo on the back. It's like buying a Windows PC and installing Linux. The updates would come from Linux, not Windows, and vice versa. You could always go back to the AT&T firmware, just make sure that both firmwares you flash are on the same bootloader version.
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stew1411 said:
Well people on the S7 edge have flashed the tmo firmware on their AT&T models. Updates come from carrier on branded phones. So if you have an AT&T phone and flash another carriers firmware, it would only be branded by the physical logo on the back. It's like buying a Windows PC and installing Linux. The updates would come from Linux, not Windows, and vice versa. You could always go back to the AT&T firmware, just make sure that both firmwares you flash are on the same bootloader version.
Sent from my SM-G935U using Tapatalk
Click to expand...
Click to collapse
But I have always read that OTA updates come from Carrier not from Samsung. Thanks for the info. Maybe AT&T will be out with Nougat by Spring after S8 are out for sale.
tailgunner9 said:
But I have always read that OTA updates come from Carrier not from Samsung. Thanks for the info. Maybe AT&T will be out with Nougat by Spring after S8 are out for sale.
Click to expand...
Click to collapse
Updates do come from the carrier. However, if you flash a different carriers firmware you will start getting updates from the new carrier.
Sent from my SM-G935U using Tapatalk
ShrekOpher said:
Flashing the phones firmware will not carrier unlock the device. That is tied to the IMEI. It will boot up the Tmobile software, but it still will only work on AT&T network.
Also in order to unlock the device from AT&T they will most likely bill you for the remaining value of the device as soon as you request an unlock code. You cannot take a phone from one carrier to another unless it is fully paid off.
Click to expand...
Click to collapse
You can pay a 3rd party service to unlock it on contract or not I have done it several times. (I use UnlockUnit for all my devices contract or not get code in like 15min)
Sent from my SAMSUNG-SM-G930A using Tapatalk
So my phone is S7 Edge G935P. Playing around on it trying to get the trifecta of root, rom, and data. So I odined the G935P.I3 and it worked, then rooted, no data. Then I flashed a Verizon ROM just to see if it would work it did, I have data, but is there a way to activate my sprint phone with a Verizon ROM? The rom I used is stang5litre edition 5.0 s7e by blackrain. Everything works except for the Verizon stuff obviously, so I'm just curious if it is possible to change those things to sprint?
Thanks
Sent from my SM-G935V using XDA Forums PRO
Danilynne said:
So my phone is S7 Edge G935P. Playing around on it trying to get the trifecta of root, rom, and data. So I odined the G935P.I3 and it worked, then rooted, no data. Then I flashed a Verizon ROM just to see if it would work it did, I have data, but is there a way to activate my sprint phone with a Verizon ROM? The rom I used is stang5litre edition 5.0 s7e by blackrain. Everything works except for the Verizon stuff obviously, so I'm just curious if it is possible to change those things to sprint?
Thanks
Sent from my SM-G935V using XDA Forums PRO
Click to expand...
Click to collapse
Wow i hope you get into this deeper and figure it out
And can you flash back to Sprint after doing this?
Did it unlock your sim?
sirslipzalot said:
And can you flash back to Sprint after doing this?
Click to expand...
Click to collapse
Yes you can go back to stock or universal, but I'm still trying to figure out how to activate the device under sprint after root. If anyone can help that world be great..
Activation just sets your apn/profile.
Have you tried adding a sprint apn?
Destinatus said:
Activation just sets your apn/profile.
Have you tried adding a sprint apn?
Click to expand...
Click to collapse
yes i did
Destinatus said:
Did it unlock your sim?
Click to expand...
Click to collapse
no
The activation is only achievable with the Sprint PRL
Sent from my SM-G935P using XDA-Developers mobile app
So does this mean the AT&T rom could work on the 935P?
Danilynne said:
So my phone is S7 Edge G935P. Playing around on it trying to get the trifecta of root, rom, and data. So I odined the G935P.I3 and it worked, then rooted, no data. Then I flashed a Verizon ROM just to see if it would work it did, I have data, but is there a way to activate my sprint phone with a Verizon ROM? The rom I used is stang5litre edition 5.0 s7e by blackrain. Everything works except for the Verizon stuff obviously, so I'm just curious if it is possible to change those things to sprint?
Thanks
Sent from my SM-G935V using XDA Forums PRO
Click to expand...
Click to collapse
I was going to try this also but never had the time. You should go to the rom thread and ask stang5litre and ask him. He is cool and well help as much as he can. He might have a legit answer?
If I put this rom on a sprint phone could I use it on a verizon network?
joeyz400 said:
If I put this rom on a sprint phone could I use it on a verizon network?
Click to expand...
Click to collapse
You will still need a donor Verizon phone to activate the Sim. You will only have lte coverage as cdma on Verizon still requires imei number. I would just flash the U firmware if you are thinking of going... Same service minus the bloat ware
Hi,
I was wondering if bringing in an unlocked phone from another carrier and putting on T-Mobile firmware will disable Samsung pay or Knox. If not, where would be the place to look on how to do this, a little confusing finding the right spot.
Thank you
Morphx2 said:
Hi,
I was wondering if bringing in an unlocked phone from another carrier and putting on T-Mobile firmware will disable Samsung pay or Knox. If not, where would be the place to look on how to do this, a little confusing finding the right spot.
Thank you
Click to expand...
Click to collapse
I done it, My phone originally a Sprint S7 Edge. Got it unlocked switched to Tmobile and installed the Tmobile firmware with no problem. I still got Samsung Pay just had to re-register for it. My Knox hasn't been tripped.
Sent from my SM-G935T using XDA-Developers Legacy app
Morphx2 said:
Hi,
I was wondering if bringing in an unlocked phone from another carrier and putting on T-Mobile firmware will disable Samsung pay or Knox. If not, where would be the place to look on how to do this, a little confusing finding the right spot.
Thank you
Click to expand...
Click to collapse
Knox and Samsung Pay shouldn't be affected, since you're just installing a different fully stock firmware. You should find instructions easily on how to install firmwares with Odin.
I tried to install the T-Mobile Nougat firmware on my G935U(the USA unlocked model), and i coudn't get it to work, something about the system image maybe being too big for my system partition.
I ordered my S8 unlocked direct from Samsung. I see that it does not by default have VOLTE available. Is there any way to get that enabled on AT&T?
Craig
csetera said:
I ordered my S8 unlocked direct from Samsung. I see that it does not by default have VOLTE available. Is there any way to get that enabled on AT&T?
Craig
Click to expand...
Click to collapse
Need to flash att firmware . Rumor is that u might be able to flash tmobile as well with a little less bloatware.
Sent from my SM-G950U1 using Tapatalk
Thor2j said:
Need to flash att firmware . Rumor is that u might be able to flash tmobile as well with a little less bloatware.
Click to expand...
Click to collapse
Does my bootloader need to be unlocked? In the end, I'm not sure if it is necessarily worth the bloatware to get this feature. Any ideas what other benefits there may be to the AT&T firmware?
csetera said:
Does my bootloader need to be unlocked? In the end, I'm not sure if it is necessarily worth the bloatware to get this feature. Any ideas what other benefits there may be to the AT&T firmware?
Click to expand...
Click to collapse
Don't need to touch bootloader. Users here report that even after flashing AT&T firmware, you may also need to get an IMEI off of one of the devices from AT&T store and possibly provide it to tech support so they can add it to your account. I also know for example there are other firmware versions, that are from AT&T, but without carriers bloatware, check on them too.
Just read/ask questions and you will get your questions answered.
https://forum.xda-developers.com/galaxy-s8/how-to/snap-guide-flashing-standard-fw-carrier-t3625817