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T-Mobile sim-unlocked firmware or any sim-unlocked firmware.

I have a SM-930V(verizon) galaxy s7 and is running Tmobile(930T) firmware. Is there any tmobile sim-unlocked firmware that I can download? Or can I flash the 930U firmware and sim-unlock my phone? What are the implications on doing this? I want to keep samsung pay, wifi calling, and LTEvoice.

You need to get a sim unlock code - there are a few websites you can purchase that from. It is not a firmware change, at least not on the S7.

Correct me if I'm wrong but don't Verizon phones come GSM unlocked or is that only for outside of the country?

Verizon S7 comes unlocked: http://www.androidcentral.com/yes-verizon-galaxy-s7-and-s7-edge-are-sim-unlocked, Just Flash the latest SM-G930U Firmware available. as always at your own risk of course, plenty of guides on how to flash the U firmware to verizon s7 here at XDA.

My T-Mobile S7 came with a device unlock application... Ive never seen it before, so i tested it out by using the temporary unlock and it worked...

KillerClaw321 said:
My T-Mobile S7 came with a device unlock application... Ive never seen it before, so i tested it out by using the temporary unlock and it worked...
Click to expand...
Click to collapse
Try doing the Permanent unlock and see if it works

micallan_17 said:
Try doing the Permanent unlock and see if it works
Click to expand...
Click to collapse
It works. A tmobile rep confirmed that it is now unlocked.

If you do not have the apk for some reason... i grabbed it heres the apk:

mines is factory unlocked (SM-G930U) so am good to go , congrats on unlocking it and you can now flash the SM-G930 U firmware on it and get rid of the TMO bloatware.

Downgrade bootloader despite efuses so I can switch

I have a Sprint-branded S7. It's unlocked. I want to switch to T-Mobile.
Sprint changed its S7 bootloader to v5 in November 2017. All other carriers, including T-Mobile, are on bootloader v4 or earlier.
The problem: You can't flash to an older-version bootloader. You'll just get an error. The phone has efuses that prevent it.
Are there any workarounds?
Specifically, I want to switch this S7 from Sprint's G930PVPS5BRA1 to T-Mobile's G930TUVS4BRA1 (bootloader version emphasized).

No work arounds I've ever seen, US snapdragon models are all bootloader locked which prevents you doing any major modifications at a firmware level.
You'll either have to wait for a v5 of the firmware you want, or try the carrier unlocked G930U v5 firmware which might work better with T-Mobile.
I believe this is also the same for the unlocked bootloader on Exynos models, but only if you get the newest drag firmware version.

Beanvee7 said:
No work arounds I've ever seen, US snapdragon models are all bootloader locked which prevents you doing any major modifications at a firmware level.
You'll either have to wait for a v5 of the firmware you want, or try the carrier unlocked G930U v5 firmware which might work better with T-Mobile.
I believe this is also the same for the unlocked bootloader on Exynos models, but only if you get the newest drag firmware version.
Click to expand...
Click to collapse
Unlocked is also on bootloader v4: https://www.sammobile.com/firmwares/galaxy-s7/SM-G930U/. That is why I suspect this v5 bootloader is a trick by Sprint to frustrate switching.

Booloaders are all locked on US S7s you can not switch Stock ROMs
You could SIM unlock and use a T-Mobile SIM though (paid)
Or sell that phone and buy a tmobile one

*Detection* said:
Booloaders are all locked on US S7s you can not switch Stock ROMs
You could SIM unlock and use a T-Mobile SIM though (paid)
Or sell that phone and buy a tmobile one
Click to expand...
Click to collapse
This phone has the domestic unlock by Sprint, so I can switch stock ROMs. I did exactly that last summer when Sprint and T-Mobile's ROMs both had v4 bootloaders.
Because it is unlocked, you are right that I can also put in a T-Mobile SIM while it has the Sprint ROM. However, it will not see all T-Mobile bands until I put T-Mobile firmware on it. I noticed that last summer, and there are other anecdotal reports of this on the internetzors.

novasource said:
This phone has the domestic unlock by Sprint, so I can switch stock ROMs. I did exactly that last summer when Sprint and T-Mobile's ROMs both had v4 bootloaders.
Because it is unlocked, you are right that I can also put in a T-Mobile SIM while it has the Sprint ROM. However, it will not see all T-Mobile bands until I put T-Mobile firmware on it. I noticed that last summer, and there are other anecdotal reports of this on the internetzors.
Click to expand...
Click to collapse
Pretty certain that all bootloaders on the US model S7s are locked meaning you cannot switch stock ROMs, other than Verizon to the G930U, maybe others to that U firmware, but I don't own the snapdragon variant so just going on what I've read here on XDA
All Snapdragon US S7s are bootloader locked, meaning no custom anything
As for certain bootloaders of each stock ROM I don't know
But I do know SIM unlock and bootloader unlock are two completely different things, switching from one carrier ROM to another does not unlock the SIM to that carrier

*Detection* said:
Pretty certain that all bootloaders on the US model S7s are locked...
Click to expand...
Click to collapse
They are locked against unauthorized/custom software, but there is nothing that stops you from putting authorized software on them. As all US variants are hardware-identical, all carrier ROMs are by definition authorized on any.

novasource said:
They are locked against unauthorized/custom software, but there is nothing that stops you from putting authorized software on them. As all US variants are hardware-identical, all carrier ROMs are by definition authorized on any.
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Click to collapse
I see, but what would be the point of switching from Sprint to T-Mobile stock ROM?
Surely just different OEM bloat?

*Detection* said:
I see, but what would be the point of switching from Sprint to T-Mobile stock ROM?
Surely just different OEM bloat?
Click to expand...
Click to collapse
While the hardware supports all bands, the ROMs do not have all bands enabled. From personal experience last summer, if you have the Sprint ROM on the phone, your phone will not see all T-Mobile bands. There are plenty of anecdotal reports of this on the internet.

novasource said:
While the hardware supports all bands, the ROMs do not have all bands enabled. From personal experience last summer, if you have the Sprint ROM on the phone, your phone will not see all T-Mobile bands. There are plenty of anecdotal reports of this on the internet.
Click to expand...
Click to collapse
I was under the impression that only SIM unlocking would solve that?
So you are saying that by managing to flash from Sprint to T-Mobile, a Sprint S7 is now able to use the T-Mobile network without a SIM unlock ?

*Detection* said:
I was under the impression that only SIM unlocking would solve that?
So you are saying that by managing to flash from Sprint to T-Mobile, a Sprint S7 is now able to use the T-Mobile network without a SIM unlock ?
Click to expand...
Click to collapse
SIM unlocking only appears to permit you to put your phone on another network. It does not appear to enable all your phone's bands. To enable another network's bands, you appear to have to switch ROMs. If there's another way of doing that, I'm interested!

novasource said:
SIM unlocking only appears to permit you to put your phone on another network. It does not appear to enable all your phone's bands. To enable another network's bands, you appear to have to switch ROMs. If there's another way of doing that, I'm interested!
Click to expand...
Click to collapse
My guess is you would first need to perform the actual SIM unlock, and then move over to the preferred network ROM to have 100% of their bands and abilities
If your phone was originally on Sprint, and you managed to flash to T-Mobile, my guess is that your T-Mobile SIM would still not work until you SIM unlocked
CSC change is what determines which features work and don't, for example on o2 CSC I can get WiFi calling, but with XEU (also UK ROM) I cannot, even though my carrier is o2, basically I bought the phone on XEU but unless I switch manually over to O2 CSC I cannot use that feature

*Detection* said:
My guess is you would first need to perform the actual SIM unlock, and then move over to the preferred network ROM to have 100% of their bands and abilities
If your phone was originally on Sprint, and you managed to flash to T-Mobile, my guess is that your T-Mobile SIM would still not work until you SIM unlocked
CSC change is what determines which features work and don't, for example on o2 CSC I can get WiFi calling, but with XEU (also UK ROM) I cannot, even though my carrier is o2, basically I bought the phone on XEU but unless I switch manually over to O2 CSC I cannot use that feature
Click to expand...
Click to collapse
Yes. Another way of putting this is that SIM unlock and band unlock are different. Sprint can unlock the SIM and let me put other carriers' SIMs in my phone. However, that doesn't unlock all the bands. That is only doable by flashing that carrier's ROM. Due to Sprint's curious choice to upgrade its bootloader, I am locked out of doing that.
I have previously been in a state where my CP was from a different-version SM-G930U ROM, while the rest was from an SM-G930P ROM, and I got repeated "Security notice" warnings from the Samsung software.

HELP
Beanvee7 said:
No work arounds I've ever seen, US snapdragon models are all bootloader locked which prevents you doing any major modifications at a firmware level.
You'll either have to wait for a v5 of the firmware you want, or try the carrier unlocked G930U v5 firmware which might work better with T-Mobile.
I believe this is also the same for the unlocked bootloader on Exynos models, but only if you get the newest drag firmware version.
Click to expand...
Click to collapse
I am somewhat experienced in this but not enough to be sure. I have sm-g30U factory unlocked by sam and got oreo update and hate. How may I check my versions or rather where might I find the proper software to downgrade to nougat . I dont understand why people keep saying "930U sprint, or vzw" . When its unlocked its not any carrier only the carrier you happen to use as its a dual sim right ? though today im with vzw i may not be tomorrow. Anyway can i flash backwards , I saw a few videos where it was done on sammobile and if not I would love to get any info in rooting it to help my battery not liking the oreo so i can help at least with bloatware. any help would be appreciated

nocamp said:
I dont understand why people keep saying "930U sprint, or vzw"d
Click to expand...
Click to collapse
There's two types of unlock.
* Bootloader unlock, which allows you to modifies the phones boot partition. It's required for custom ROM's and recovery.
* Carrier unlock, which is just whether your phone allows any SIM or only a specific carrier.
The G930U is carrier unlocked, you can use any SIM, but it's still bootloader locked like every other US model S7, which means no boot modifications.
As a result you can't rollback the G930U because of the locked bootloader, and you can root it but only but using an engineering bootloader which comes with many side affects.

Does only the number matter or does also the letter? For example, say Im deciding between U5 and S5, how would the efuse work?

DeeXii said:
Does only the number matter or does also the letter? For example, say Im deciding between U5 and S5, how would the efuse work?
Click to expand...
Click to collapse
Yes just the number , cell carriers tend to use the letter S while Samsung unbranded tend to use the letter U. But the number tells you the version boot loader .

Unlocked phone - flashing firmware. Will I lose/keep the unlock code?

Hi, I have a problem with my note 20 ultra and I would like to know precise info because is very important. I live in Italy, and I buy a note 20 ultra sm-n986u in the USA to get the snapdragon variant, which is much better of the version selled here in Europe. The phone was At&t locked, but the seller give me a code to unlock it to insert my italian sim. All is working well, except the fact that the phone never recieve updates due to the fact that I'm not in the USA. So I need to flash a new firmware with odin. So this is the problem:
1) Should I flash an n986u firmware (with At&t bloatware)? In this case I will lose my unlock code?
2) Can I flash a n986u1 firmware to de-brand the phone from At&t? In this case I will lose my unlock code?
3) If I lose my unlock code, will the same code work again?
I searched in theese forum an answer, but no one can give me a precise information, only hypothesis. I think it is a very difficoult argument, but it's very important to me. Can someone help me? Thanks.

Flash it with U1 firmware and it will do auto update. you won't lose the unlock.

randy_c said:
Flash it with U1 firmware and it will do auto update. you won't lose the unlock.
Click to expand...
Click to collapse
Are you 100% sure about that? I will remove At&t limitations and bloatware and keep my unlock code (no need to reinsert it)?

Lol I have att unlock phone for the last several years and did it all the time

randy_c said:
Lol I have att unlock phone for the last several years and did it all the time
Click to expand...
Click to collapse
So basically unlocked phones are brand phones (att, spring, verizon ecc) in which someone already insert the code? And it stays forever?

FedeAle said:
So basically unlocked phones are brand phones (att, spring, verizon ecc) in which someone already insert the code? And it stays forever?
Click to expand...
Click to collapse
Yes at&t phone

randy_c said:
Yes at&t phone
Click to expand...
Click to collapse
Ok thanks! Then I will flash U1 firmware if I it keep unlocked. Tell me, does in USA companies uses 4g+? My note stays only on "4G LTE", while my old phone used to stay with "4g+" network.

Remove att boot animation

Hi I just got a new s22 ultra, and I am looking to remove the AT&T boot animation in (/oem/media),
I've already removed the bloatware apps using Universal Android Debloater
I prefer a way to do it without rooting, and if there is no way, can I "unroot" my phone later?

fknMega said:
Hi I just got a new s22 ultra, and I am looking to remove the AT&T boot animation in (/oem/media),
I've already removed the bloatware apps using Universal Android Debloater
I prefer a way to do it without rooting, and if there is no way, can I "unroot" my phone later?
Click to expand...
Click to collapse
i don't think you'll be rooting your phone to begin with and because of that, you can't do much more then disable apps. You can't get rid of the bootanimation without root and you can't have root without unlocked bootloader

PizzaG said:
i don't think you'll be rooting your phone to begin with and because of that, you can't do much more then disable apps. You can't get rid of the bootanimation without root and you can't have root without unlocked bootloader
Click to expand...
Click to collapse
alr well where do I do all of this, can I do it safely? and can I unroot it later?

fknMega said:
alr well where do I do all of this, can I do it safely? and can I unroot it later?
Click to expand...
Click to collapse
you can do nothing more, there is no bootloader unlock. enjoy ur debloated S22 Ultra
I take that back, you should be able to flash the U1 variant of your device firmware and that will get rid of the ATT boot animation as well as any other carrier stuff

PizzaG said:
you can do nothing more, there is no bootloader unlock. enjoy ur debloated S22 Ultra
I take that back, you should be able to flash the U1 variant of your device firmware and that will get rid of the ATT boot animation as well as any other carrier stuff
Click to expand...
Click to collapse
how do I do that, I've also noticed that I won't get the one UI 5 update because of AT&T too

Need root for this and root need unlock BL

fknMega said:
Hi I just got a new s22 ultra, and I am looking to remove the AT&T boot animation in (/oem/media),
I've already removed the bloatware apps using Universal Android Debloater
I prefer a way to do it without rooting, and if there is no way, can I "unroot" my phone later?
Click to expand...
Click to collapse
Install the U1 firmware
OTA and Non-OTA Firmware for S22 Ultra SM-S908U and S22 Ultra SM-S908U1 Versions
See Post #2 and #3 for the Links to the Firmware All of the firmware posted here can be flashed on any U or U1 Device. Each of the firmware's are NOT carrier dependent and only has carrier labels listed in order to have an idea if you might get...
forum.xda-developers.com

As a side note, if you took a look around you could find the Sub Threads that exist for most of the current devices. You can dig into a thread that would get you some super specific answers to questions about your device. LOTS of info available

Possible to Downgrade From Android 11 to 10 on XT2113-2? If so, how?

I have a new XT2113-2 (TM) that is yet to be boot loader unlocked/rooted/etc. I don't want to do that until I am sure. I got this variant of the phone so I could unlock the bootloader, root, TWRP, etc and was afraid the "global" variant -3 might not work with USA 5G. The phone came with Android 11 installed (and has since auto-installed at least one security update). It shows the build as RZKS31.Q3-45-16-3-11 and the baseband ends with Kiev_TMO_CUST. I am using it on ATT (via Red Pocket) since TM service just sucks where I live. And I do get the 5G icon on it now.
But ideally, I want to get this to the original TM Android 10, which I think is shown here as the file XT2113-2_KIEV_TMO_10_QZKS30.Q4-40-95-6_subsidy-TMO_SPR_RSU_QCOM_regulatory-DEFAULT_CFC.xml.zip as I hope it will undo some of the "security" crap Google has added to Android with each successive release.
So I need to be sure of the following:
1. Can I downgrade from 11 to 10?
2. Is there some reason to NOT use the firmware mentioned above? Should I use retail US (RETUS) instead? I am not sure the differences (it would be great if that would permit me to use this phone on Red Pocket Verizon but the IMEI now shows as incompatible on Verizon).
3. Must I unlock the boot loader to downgrade? I know I must to do other stuff and I have the unlock code on hand and ready to put it if needed. If I must unlock the boot loader to downgrade, will I have to re-unlock it afterwards? And, if so, will I have to go through the same process of getting a code or will the code I have now work?
4. How do I flash to do the downgrade? I have the Lenovo Rescue/Smart Assistant installed on my PC and was able to download the stock firmware (I assume it matches what is on there now) and stashed it aside. But is there some other tool needed?
5. Once I achieve downgrade, what is the best way to avoid having the thing auto-update to Android 11?
Thanks for your help with these questions.

If you are going to take this phone to AT&T, you will not get 5G if you unlock the bootloader. The NR band will be restricted. Downgrading from 11 to 10 generally doesn't work either.
I can't answer the rest of your questions.

RETIEF said:
If you are going to take this phone to AT&T, you will not get 5G if you unlock the bootloader. The NR band will be restricted. Downgrading from 11 to 10 generally doesn't work either.
I can't answer the rest of your questions.
Click to expand...
Click to collapse
Thanks for this response. I do have it on ATT (via Red Pocket) now and it does appear to get 5G now. I have not yet unlocked the bootloader, was thinking to do it, but considering that it would cause loss of 5G I think I will not and will just return the phone. Wow!

RETIEF said:
If you are going to take this phone to AT&T, you will not get 5G if you unlock the bootloader. The NR band will be restricted. Downgrading from 11 to 10 generally doesn't work either.
I can't answer the rest of your questions.
Click to expand...
Click to collapse
BTW - have you any references on this behavior? I am wondering if this is something that would affect ALL phones with unlocked boot loaders (like Pixel, OnePlus, etc). Thanks for the heads-up.

WARNING: ONLY DO THAT IF YOU ARE REALLY SURE AND DO BE CAREFULLY. I recommend you: do it not.
By downgrading to an older software, the bootloader in many cases can be destroyed, so your phone is completly bricked!
I write this from EXPERIENCE. My amazon fire is completed bricked, when i have flash a older SYSTEM. It can't turn on, no fastboot, no recovery!

whitedavidp said:
BTW - have you any references on this behavior? I am wondering if this is something that would affect ALL phones with unlocked boot loaders (like Pixel, OnePlus, etc). Thanks for the heads-up.
Click to expand...
Click to collapse
I suspect, but don't know, that all phones with unlocked bootloaders are blocked from 5g from AT&T. I know my kiev (RETUS) is.

RETIEF said:
I suspect, but don't know, that all phones with unlocked bootloaders are blocked from 5g from AT&T. I know my kiev (RETUS) is.
Click to expand...
Click to collapse
Thanks. Yet another reason to dislike ATT, I guess. Sadly, in my area TM coverage stinks. And this phone will not work on Verizon (unclear why but they reject the IMEI). And getting the Verizon variant will preclude ever rooting the thing. So I really feel trapped!

Likewise

RETIEF said:
I suspect, but don't know, that all phones with unlocked bootloaders are blocked from 5g from AT&T. I know my kiev (RETUS) is.
Click to expand...
Click to collapse
I always figured it was this
English Community-Lenovo Community
as my IMEI SV on the Metro/TMO variant is 05 rather than 07. Never tested with a locked bootloader though.
whitedavidp said:
BTW - have you any references on this behavior? I am wondering if this is something that would affect ALL phones with unlocked boot loaders (like Pixel, OnePlus, etc). Thanks for the heads-up.
Click to expand...
Click to collapse
Bootloader unlocked Pixels work fine on ATT 5G, don't know about OnePlus.