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Converting an ATT S7 Edge to Tmobile firmware

Hey everyone,
I have an ATT S7 Edge and was looking to switch to Tmobile. My S7E is unlocked with a Prepaid Tmobile sim in it now and all is working well (even VoLTE which I was shocked about). I'd like to have Tmobile software for wifi calling if it is at all possible. It seems as if VoLTE compatible so I figured the hardware was the same, just different software/basebands. I know Samsung is a nightmare with their carrier versions/locked bootloaders so I assume the chances of this being possible is unlikely, but I figured I should at least ask.

You won't be able to flash TMo firmware on your AT&T phone. Sorry.
Sent from my SM-G935T using Tapatalk

Well.. he could at least try to flash the T-Mobile US firmware... worse it could do is fail to install, right?

Binary100100 said:
Well.. he could at least try to flash the T-Mobile US firmware... worse it could do is fail to install, right?
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Click to collapse
I think worst case scenario is he bricks his phone.

Trade it on CL for a tmobile one.

snobrdr2324 said:
Hey everyone,
I have an ATT S7 Edge and was looking to switch to Tmobile. My S7E is unlocked with a Prepaid Tmobile sim in it now and all is working well (even VoLTE which I was shocked about). I'd like to have Tmobile software for wifi calling if it is at all possible. It seems as if VoLTE compatible so I figured the hardware was the same, just different software/basebands. I know Samsung is a nightmare with their carrier versions/locked bootloaders so I assume the chances of this being possible is unlikely, but I figured I should at least ask.
Click to expand...
Click to collapse
What color is it? I'm might be down to swap send me a pm.
Sent from my SM-G935T using XDA-Developers mobile app

i feel the same way except i have a unlocked verizon s7e, but it doesn't feel the same as the t-mobile one.

LancerEvoDrifter said:
i feel the same way except i have a unlocked verizon s7e, but it doesn't feel the same as the t-mobile one.
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Click to collapse
A Verizon s7e is not the same and will not work properly on tmobile service.
Sent from my SM-G935T using XDA-Developers mobile app

DO NOT do that.If you do so then you can flash your framework back to ATT. I flashed my g935p with g935t framework afterward I can't go back to Sprint framework.

I'm trying to convert my T-Mobile to AT&T because volte isn't working right now. Did you have any luck going from ATT to Tmo?

convert tmo to at&t
baskln said:
I'm trying to convert my T-Mobile to AT&T because volte isn't working right now. Did you have any luck going from ATT to Tmo?
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Were you able to figure this out? I read SOMEWHERE that it's definitely doable but now I can't find the post with instructions.

Register AT&T Unlocked S7E on Verizon

Hi, I wanted to know whether an unlocked AT&T branded S7E would work on Verizon without flashing the U/V firmware, despite missing band 13. As in, would Verizon approve the IMEI and send in the SIM card because I do not currently have a Verizon SIM and am planning to join their unlimited plan. Thanks

Try it and report back. IM still waiting on my unlock code to come

It will not work with Verizon. Only unlocked phones the except are Google devices and iPhones

seshaz said:
It will not work with Verizon. Only unlocked phones the except are Google devices and iPhones
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Why do you speak of things you don't know about? This is 2017. Most Samsung and iPhones are the same model through every carrier now aside from using carrier specific firmware to lockout certain bands. Right now I am using an att S7 edge flashed with Verizon firmware . But of course you have to sim unlock it first before using on the network. I've been using it for the past week and everything works great. Thank you kindly.

warriorpluto said:
Why do you speak of things you don't know about? This is 2017. Most Samsung and iPhones are the same model through every carrier now aside from using carrier specific firmware to lockout certain bands. Right now I am using an att S7 edge flashed with Verizon firmware . But of course you have to sim unlock it first before using on the network. I've been using it for the past week and everything works great. Thank you kindly.
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How do you sim unlock the phone first?

Unlocked LG G6 US997 Won't Activate on Verizon, Advice Needed

I brought an unlocked LG G6 to Verizon store today to get it activated and they were unable to do this. It appears I have 3 options:
1. Return device to bhphotovideo.com. Not sure what their return policy is.
2. Switch from Verizon to T-Mobile. Live in Silicon Valley close to San Jose, California. Their network is probably fine here.
3. Get an imei from an Android device with nano sim. The Verizon tech person said if I had a friend or family member with this they could get the unlocked G6 working on Verizon. Trouble is that I do not know anyone with an Android phone with nano sim. My old G4 used micro sim. The friends and family members have either iPhones or older Androids with micro sim.
So I could really use some advice here.
And in addition let this be a warning to anyone trying to get unlocked devices working on Verizon. I had read elsewhere that Verizon was now more friendly towards unlocked devices, but this was clearly not the case in my experience. Perhaps this is one reason Verizon is starting to lose customers for the first time in its history.

Cut your old micro sim to nano size put it in the G6 and fire it up. Then your new G6 will work and be in the Verizon data base.
Than sometime go in to Verizon and get a new nano sim. I have been down this road with unlocked phones and its not LG it is Verizon.
If you want to use the old G4 again you need a nano to micro adaptor.
I am using the US997 G6 from BH right now but my old phone used the nano sim so I just had to swap it out. Works perfect so long as you start with a Verizon sim that is already activated.

Earlier this week I activated a new SIM/device with my ancient Galaxy S3 IMEI and verizon sent me a 3-in-1 card that I punched down to the nano size cutout. Which allowed me to put my US997 on the network.

By the way, can you share if VoLTE, WiFi Calling or Video Calling work?

jiggyman said:
By the way, can you share if VoLTE, WiFi Calling or Video Calling work?
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I would like to know the same thing! Thanks

I got this phone all I did was take my sim out of my iphone put it in the g6 and boom it works. Verizon has no idea I have this phone. Lol

Update: got the LG G6 working on Verizon after all. We had to make sure the LG G4 is powered down in order for the activation to complete since the G6 was replacing the G4 on Verizon. And boy do I feel like an idiot for not knowing that. Surprising most of the Verizon staff did not suggest to do this.

I received mine and activated it yesterday. VoLTE works perfectly. No Video/WiFi Calling though. I love this phone! No bloatware!
Sent from my LGUS997 using Tapatalk

jiggyman said:
I received mine and activated it yesterday. VoLTE works perfectly. No Video/WiFi Calling though. I love this phone! No bloatware!
Sent from my LGUS997 using Tapatalk
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Are there any other differences between the US997 model and the Verizon VS988, other than lacking wifi calling? (I don't know anyone who actually uses verizon video calling, iphone people use facetime, and as android user I'd always just use duo, hangouts or skype)
How do you tst if VoLTE is working?

I'm also curious about this process. I've done a lot of searching, but haven't been able to find a direct answer yet.
I'm considering buying a Sprint G6, then unlocking it to use it on Verizon. Is this even possible? Obviously, they're both CDMA. And appear to have the bands necessary for Verizon. But I've had trouble in the past with unlocking Sprint devices to work on Verizon.
Any insight is greatly appreciated.

madmax988 said:
Are there any other differences between the US997 model and the Verizon VS988, other than lacking wifi calling? (I don't know anyone who actually uses verizon video calling, iphone people use facetime, and as android user I'd always just use duo, hangouts or skype)
How do you tst if VoLTE is working?
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Click to collapse
VoLTE worked out the box for me on Verizon. I just inserted my SIM and checked, and it was enabled. WiFi calling does not work on most unlocked phones, and the US997 unlocked edition is no different here. Video calling through the carrier does not work either.
Sent from my LGUS997 using Tapatalk

htcnext said:
I brought an unlocked LG G6 to Verizon store today to get it activated and they were unable to do this. It appears I have 3 options:
1. Return device to bhphotovideo.com. Not sure what their return policy is.
2. Switch from Verizon to T-Mobile. Live in Silicon Valley close to San Jose, California. Their network is probably fine here.
3. Get an imei from an Android device with nano sim. The Verizon tech person said if I had a friend or family member with this they could get the unlocked G6 working on Verizon. Trouble is that I do not know anyone with an Android phone with nano sim. My old G4 used micro sim. The friends and family members have either iPhones or older Androids with micro sim.
So I could really use some advice here.
And in addition let this be a warning to anyone trying to get unlocked devices working on Verizon. I had read elsewhere that Verizon was now more friendly towards unlocked devices, but this was clearly not the case in my experience. Perhaps this is one reason Verizon is starting to lose customers for the first time in its history.
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Click to collapse
That's great news that you got most of the functionality working, OP. Do you happen to know if the phone was factory unlocked? Or was it tied to a carrier, then unlocked afterward? Again, thanks for any additional info!

ctyonthehil said:
I'm also curious about this process. I've done a lot of searching, but haven't been able to find a direct answer yet.
I'm considering buying a Sprint G6, then unlocking it to use it on Verizon. Is this even possible? Obviously, they're both CDMA. And appear to have the bands necessary for Verizon. But I've had trouble in the past with unlocking Sprint devices to work on Verizon.
Any insight is greatly appreciated.
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Click to collapse
Unlikely to work. Stick with the unlocked version, model us997. Keep in mind Verizon sometimes blocks phones from their network that have the necessary hardware, like the ZTE Axon 7.

htcnext said:
Unlikely to work. Stick with the unlocked version, model us997. Keep in mind Verizon sometimes blocks phones from their network that have the necessary hardware, like the ZTE Axon 7.
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That's wrong. Im using Axon 7 on Verizon right now. No issues at all.
I really like the G6, not sure if i should get it. I have the Axon 7 as i stated above.

tolymatev said:
That's wrong. Im using Axon 7 on Verizon right now. No issues at all.
I really like the G6, not sure if i should get it. I have the Axon 7 as i stated above.
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If you want OOB compatibility, the device must be certified through Verizon's Open Development process. See below.
https://opennetwork.verizonwireless.com/content/open-development/home.html
Sent from my LGUS997 using Tapatalk

jiggyman said:
If you want OOB compatibility, the device must be certified through Verizon's Open Development process. See below.
https://opennetwork.verizonwireless.com/content/open-development/home.html
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Click to collapse
OOB???
Axon 7 is just like Moto X Pure or this us997. They are unlocked with Verizon's bands. Stick an activated sim in them and they will work.

tolymatev said:
OOB???
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Out of The Box, without any mods.
Sent from my LGUS997 using Tapatalk

https://community.zteusa.com/thread/14776

htcnext said:
https://community.zteusa.com/thread/14776
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This is old. And only one build. I went through that. They fixed it right away. I had the phone since launch. MM was great out of the box, 7.0 had a hiccup with service, GSM sim after the update fixed it on 1st boot, then you could put your​ CDMA sim back in.
If you buy the device now, the 7.1.1 build will work out of the box.

If you look through the zte forums people have had a lot of problems getting the Axon 7 to work with Verizon. Anyway, I am glad to hear you got it working all right. I like the Axon 7 a lot but was not willing to go through the extra effort that others reported to get it working. And some people could not get it working at all, not a risk I was willing to take. I blame Verizon, I do not think they are supportive of unlocked phones.

Galaxy S8 on Verizon and Tmobile

I am interested in trying Tmobile for service but have a phone issue. I currently have Verizon service with a S5. Tmobile has advised me that my S5 would not work great on their network. They suggested that I buy an S8 to give their network the proper test. But if I do not like the service coverage, I understand their S8 would not work properly on the Verizon network if I were to switch back. So, I would like to know if I purchased an S8 from Verizon would it work well on the Tmobile network. Also, if I purchased an unlocked S8 from Samsung would it work well on both Tmobile and Verizon.
Please give me your advise.

nkg said:
I am interested in trying Tmobile for service but have a phone issue. I currently have Verizon service with a S5. Tmobile has advised me that my S5 would not work great on their network. They suggested that I buy an S8 to give their network the proper test. But if I do not like the service coverage, I understand their S8 would not work properly on the Verizon network if I were to switch back. So, I would like to know if I purchased an S8 from Verizon would it work well on the Tmobile network. Also, if I purchased an unlocked S8 from Samsung would it work well on both Tmobile and Verizon.
Please give me your advise.
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Some "unlocked " phones are gsm only and Verizon is cdma(I think the s8 and plus have all bands though not 100%sure). Make sure it's compatible 1st. I setup Verizon s5s and s6s for people on T-Mobile before besides the sim card isn't from Verizon message when you 1st boot up they worked fine for them. Make sure apns are correct and don't use Verizon message app you'll be ok to try network.
Sent from my SM-G955U using Tapatalk

If you truly want the S8 no matter which service you end up with, get the unlocked us version (like at Best buy) it should be both GSM and CDMA.

nkg said:
I am interested in trying Tmobile for service but have a phone issue. I currently have Verizon service with a S5. Tmobile has advised me that my S5 would not work great on their network. They suggested that I buy an S8 to give their network the proper test. But if I do not like the service coverage, I understand their S8 would not work properly on the Verizon network if I were to switch back. So, I would like to know if I purchased an S8 from Verizon would it work well on the Tmobile network. Also, if I purchased an unlocked S8 from Samsung would it work well on both Tmobile and Verizon.
Please give me your advise.
Click to expand...
Click to collapse
An unlocked version from Samsung.com should serve you better on both of your carriers. I have an unlocked S8, purchased from Samsung and I use it with T-Mobile.
Read the first portion and then scroll to the bottom for fine print and you will find your answer.
http://www.samsung.com/us/mobile/phones/unlocked-by-samsung/

Charkatak said:
An unlocked version from Samsung.com should serve you better on both of your carriers. I have an unlocked S8, purchased from Samsung and I use it with T-Mobile.
Read the first portion and then scroll to the bottom for fine print and you will find your answer.
http://www.samsung.com/us/mobile/phones/unlocked-by-samsung/
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Thanks for the response

MetroPCS?

Thinking about getting one, the 128 GB/8 GB T-Mobile version, which is cheaper than the unlocked one.
This *should* work on MetroPCS, won't it?

If i remember correctly between MetroPCS/T-Mobile, though they're practically on the same network i don't think you can use a T-Mobile phone on MetroPCS unless the phone is unlocked. I had a LG phone exclusive from Metro once and i tried putting in T-Mobile sim and it didn't work for me, unless maybe it's the other way around where it'll work on Metro coming from a T-mobile phone?? Hope this somewhat help.

I'm not sure with any OnePlus device, but I had two Samsung phones (J7 and Grand Prime) that I helped build ROM's for and they both supported T-Mobile and Metro sims on every build. Just call a Metro store and ask, they should be able to give you an answer. Good luck.
GuyInDogSuit said:
Thinking about getting one, the 128 GB/8 GB T-Mobile version, which is cheaper than the unlocked one.
This *should* work on MetroPCS, won't it?
Click to expand...
Click to collapse

Turns out the seller had an unlocked one for the same price and specs, so I bought that one.