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The backstory.... Preordered an ATT Note 7 and had many headaches with delivery / billing. I am now living with my old Note3 using Goggle Voice/Hangouts because of my weak signal (all carriers) at home. I'm using a pre-paid Straight Talk plan when away from home.
I've been waiting patiently for the S8+ and now need to decide between AT&T and T-Mobile for a GSM phone. I plan on paying full cash price and having it unlocked to use a 3rd part prepaid plan (Straight Talk or ?).
I considered a factory unlocked phone (Best Buy, May 9th??) but I am told that those will also have a locked bootloader. Up until the Note 7 I always ran rooted with custom ROMS. I became a big fan of Samsung Pay which I think also means a locked bootloader with no root is needed. Of coarse, bloatware sucks. I had good luck with Package Disabler Pro on my Note 7. I will be using my Google number, if only for forwarding to another number. WiFi calling is a must one way or another.
My Note 7 from ATT let me run Mobile Hotspot at the same time WiFi was enabled. This made it easy for giving my Android head unit in my car Internet access. The T-mobile version at the time needed to be turned on and off.
I'm leaning toward T-mobile only because of my bad blood with ATT. ATT coverage is marginally better in my area.
Thoughts, comments.
Either and flash the OS on it with ODIN. It is the same hardware so it doesnt matter.
mweinbach said:
Either and flash the OS on it with ODIN. It is the same hardware so it doesnt matter.
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Yes and also if the T-Mobile version is going to have an unlocked bootloader, flashing T-Mobile firmware should allow you to unlock it through the OS.
But it's highly unlikely it will have an unlocked bootloader, although T-Mobile have supported it, I don't think it's happening.
No unlocked bootloaders on u.s.a. Carriers....
SBERG117 said:
No unlocked bootloaders on u.s.a. Carriers....
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Click to collapse
I get that if you buy a carrier phone and then unlock it. But what about the factory unlocked phones sold in the US?
I've heard that the bootloader on those phones is also locked, but not from a real good source of info. I've also heard international versions do not have a locked bootloader and do not support Samsung Pay. They also do not support CDMA (which doesn't bother me at all).
Interceptor777 said:
Yes and also if the T-Mobile version is going to have an unlocked bootloader, flashing T-Mobile firmware should allow you to unlock it through the OS.
But it's highly unlikely it will have an unlocked bootloader, although T-Mobile have supported it, I don't think it's happening.
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Click to collapse
If I flash via ODIN does that kill Samsung Pay? What about Knox?
Phredeee said:
The backstory.... Preordered an ATT Note 7 and had many headaches with delivery / billing. I am now living with my old Note3 using Goggle Voice/Hangouts because of my weak signal (all carriers) at home. I'm using a pre-paid Straight Talk plan when away from home.
I've been waiting patiently for the S8+ and now need to decide between AT&T and T-Mobile for a GSM phone. I plan on paying full cash price and having it unlocked to use a 3rd part prepaid plan (Straight Talk or ?).
I considered a factory unlocked phone (Best Buy, May 9th??) but I am told that those will also have a locked bootloader. Up until the Note 7 I always ran rooted with custom ROMS. I became a big fan of Samsung Pay which I think also means a locked bootloader with no root is needed. Of coarse, bloatware sucks. I had good luck with Package Disabler Pro on my Note 7. I will be using my Google number, if only for forwarding to another number. WiFi calling is a must one way or another.
My Note 7 from ATT let me run Mobile Hotspot at the same time WiFi was enabled. This made it easy for giving my Android head unit in my car Internet access. The T-mobile version at the time needed to be turned on and off.
I'm leaning toward T-mobile only because of my bad blood with ATT. ATT coverage is marginally better in my area.
Thoughts, comments.
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Click to collapse
I'm in a similar situation and my first concern is what bands both phones support. Online it seems AT&T covers both GSM providers perfectly. The info on T-Mobile and its bands is extremely lacking. My second concern is the process of unlocking either fully paid off phone for use on the other. I think I can have TMobile unlock it for me but I'm not sure how it works with AT&T. The easiest solution is the unlocked version but thats not even got a release date set in writing anywhere.
Phredeee said:
If I flash via ODIN does that kill Samsung Pay? What about Knox?
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Click to collapse
As long you are flashing official firmware from Samsung nothing will break. Knox will not be tripped and Samsung Pay will work.
954wrecker said:
I'm in a similar situation and my first concern is what bands both phones support. Online it seems AT&T covers both GSM providers perfectly. The info on T-Mobile and its bands is extremely lacking. My second concern is the process of unlocking either fully paid off phone for use on the other. I think I can have TMobile unlock it for me but I'm not sure how it works with AT&T. The easiest solution is the unlocked version but thats not even got a release date set in writing anywhere.
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It is my understanding that all US (Snapdragon) phones cover all bands, including CDMA. That means you could even take an unlocked AT&T phone to Verizon. I'm not used to that! It even has LTE-U which TMo is supposed to be soon supporting.
I am an ex AT&T customer. They unlocked my Note 7, and again with the replacement, without issue. I seem to remember there was a wait period at first. 7 or 14 days?
The thing I'm considering is also the VR incentives for pre-ordering. I can tell you AT&T messed up my Note 7 pre-order. They shipped it on the release day by a slow method. I ended up going to a store and buying one outright and returning the unopened one once it arrived. That caused a billing nightmare that I had to call them every months until I finally turned it in and closed my account.
Phredeee said:
It is my understanding that all US (Snapdragon) phones cover all bands, including CDMA. That means you could even take an unlocked AT&T phone to Verizon. I'm not used to that! It even has LTE-U which TMo is supposed to be soon supporting.
I am an ex AT&T customer. They unlocked my Note 7, and again with the replacement, without issue. I seem to remember there was a wait period at first. 7 or 14 days?
The thing I'm considering is also the VR incentives for pre-ordering. I can tell you AT&T messed up my Note 7 pre-order. They shipped it on the release day by a slow method. I ended up going to a store and buying one outright and returning the unopened one once it arrived. That caused a billing nightmare that I had to call them every months until I finally turned it in and closed my account.
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Can you recall where you read the carrier versions support all the bands just like the unlocked versions? All the info I found from the carriers shows different bands on each model.
Phredeee said:
I get that if you buy a carrier phone and then unlock it. But what about the factory unlocked phones sold in the US?
I've heard that the bootloader on those phones is also locked, but not from a real good source of info. I've also heard international versions do not have a locked bootloader and do not support Samsung Pay. They also do not support CDMA (which doesn't bother me at all).
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Click to collapse
You're missing what I'm saying... There will be no unlocked bootloaders on any Samsung S8 phones for the USA. You cannot get one from carrier or factory.
I think you may be mixing up Bootloader unlock and Sim unlock....
954wrecker said:
Can you recall where you read the carrier versions support all the bands just like the unlocked versions? All the info I found from the carriers shows different bands on each model.
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Click to collapse
I do remember that it was a story about FCC approval of the factory unlocked (SIM) phone. Keep that in mind that it may be the unbranded, factory unlocked phone only, but the article did say they were all the same. The locked carrier phones may not be so flexible.
Other things I've found.. Best Buy SIM unlocked does not get the incentives. Best Buy, and their cheaper price, does not seem to offer a T-Mo phone.
The VR incentive is attractive to me, but is not a must have. At this moment, until I can find out for sure if Samsung Pay will work on an international version, I am leaning towards a T-Mo pre-order. But that is me and my preferences YMMV. I have a major dislike for AT&T.
Looking for where I read it. In the mean time this may be interesting to you.
Model numbers http://techbeasts.com/list-of-samsung-galaxy-s8-galaxy-s8plus-model-numbers/
Frequencies https://www.frequencycheck.com/models/OyqBp/samsung-sm-g955a-galaxy-s8-td-lte-samsung-dream
The link is for the AT&T model search for other models.
954wrecker said:
Can you recall where you read the carrier versions support all the bands just like the unlocked versions? All the info I found from the carriers shows different bands on each model.
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Click to collapse
It appears that going by this information the factory unlocked and the AT&T are NOT the same https://www.frequencycheck.com/compare-devices/6MQWs05y/samsung-sm-g950a-galaxy-s8-td-lte-samsung-dream/samsung-sm-g950f-galaxy-s8-td-lte-samsung-dream
You're correct that it seems T-mo info is evasive.
Hello,
I would like to know, if it posible to buy the Galaxy S8 from the samsung web page (att version), then unlock it and after that flash the unlocked rom flashing it with odin.
Can someone help me?
thanks.
Just ordered the 955F from Clove...
I'm hoping that missing bands won't hurt my AT&T usage much. Or any prepaid sims I may throw in there.
Will see if the 955U info comes out before my phone, and will decide if I want to cancel.
:good::angel:
So i currently have as sprint s4 that unlocked thanks to xda. i actually have att sim in right now and working fine although only getting HSPA+. haven't got time to try to do the upgrade to LTE for gsm also yet
But thinking of getting a replacement. Is there some sort of unlocked S7 ver that would allow for use on all 4 US networks as well as international? can i purchase that somewhere or i can only get a network sold ver and try to unlock? Thanks.
You can grey import or buy official unlocked S7 int. model (G930F or G930FD) with ease. I don't think I've actually seen a locked international version, at least not on the sites I look at.
Just be careful you don't end up buying a fake (avoid ebay). I got mine from eGlobal. Many locked US variants like the G930V get reflashed to G930F firmware and have the text on the back changed so you can't tell unless you go into download mode.
From what I've seen around here, they work in the US just fine and being the international model work in the rest of the world. You might just need to flash the appropriate CSC/modem for whatever carrier you're using at the time.
I thought international models would only have gsm support?
If I get a factory unlocked US version, I can be sure it will have support for all major bands (and new network features) in major US carriers.
But if I get a factory unlocked International version (because I want dual sim), I know it will work on US carriers, but will it be missing support for some special bands that US carriers use? Will it have full compatibility with US carriers?
I also heard that international version didn't have CDMA support. Is that true?
P.S. Both factory unlocked editions should be bootloader unlocked, yes? I don't see why they wouldn't be.
P.P.S. Would it be possible to flash carrier specific firmware to a factory unlocked phone, that way you can keep your unlocked bootloader and also get carrier specific features (if it has one that is)?
BBRecon said:
If I get a factory unlocked US version, I can be sure it will have support for all major bands (and new network features) in major US carriers.
But if I get a factory unlocked International version (because I want dual sim), I know it will work on US carriers, but will it be missing support for some special bands that US carriers use? Will it have full compatibility with US carriers?
I also heard that international version didn't have CDMA support. Is that true?
P.S. Both factory unlocked editions should be bootloader unlocked, yes? I don't see why they wouldn't be.
P.P.S. Would it be possible to flash carrier specific firmware to a factory unlocked phone, that way you can keep your unlocked bootloader and also get carrier specific features (if it has one that is)?
Click to expand...
Click to collapse
all the US models bootloaders are Locked... this is the question I'm looking for at this moment... I want to make sure that volte, wifi calling and US bands are all working, I have T-Mobile and refuse to buy a locked bootloader...
I'm looking for the g955f or fd... I see it for 719 + 10 for shipping... T-Mobile can kiss my a$$ for that buy 1 get 1... I have 6 lines and I am supposed to open a new line for each phone... I moved people from metropcs and sprint to tmobile and they treat the loyal customers like poooooop..... really bad business practices.. so I will never buy another phone from T-Mobile directly.
mdiaz33685 said:
all the US models bootloaders are Locked... this is the question I'm looking for at this moment... I want to make sure that volte, wifi calling and US bands are all working, I have T-Mobile and refuse to buy a locked bootloader...
I'm looking for the g955f or fd... I see it for 719 + 10 for shipping... T-Mobile can kiss my a$$ for that buy 1 get 1... I have 6 lines and I am supposed to open a new line for each phone... I moved people from metropcs and sprint to tmobile and they treat the loyal customers like poooooop..... really bad business practices.. so I will never buy another phone from T-Mobile directly.
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Click to collapse
i have tmobile and i got the FD version of the phone, without root and flashing tmobile CSC VOLTE and WIFIcalling will not work on the stock firmware.
keep in mind flashing and rooting will trip knox and you cannot use samsung pay and secure folder. and warranty is voided.
secondly, tmobile is not having bad business models. it doesn't matter how loyal you are, they are a business. everyone requires one new line for a BOGO, ATT wants one new line and you have to have directTV.
does anyone know for sure if the US unlocked version (SM-G955UZKAXAA) supports LTE band 29 for AT&T? according to this, it does not: http://www.droid-life.com/2017/03/08/unlocked-galaxy-s8-plus-s8-fcc-smg950-smg955/
ajsmsg78 answered this and it appears not.
From what I've read, T-Mobile has worked specifically with Samsung to make a phone that supports all their network features properly. Furthermore, you need their firmware to support their features (they may make updates and such in the future). Unfortunately, the only way to do this is to buy their model branded phone.
So as far as band support and such, I'm not sure how much band support there is in the factory unlocked editions. Likely the phone will work fine with the carriers, but don't expect certain special network features to be supported, or 100% compatibility (I don't know if flashing their firmware to your phone can fix this part)
BBRecon said:
From what I've read, T-Mobile has worked specifically with Samsung to make a phone that supports all their network features properly. Furthermore, you need their firmware to support their features (they may make updates and such in the future). Unfortunately, the only way to do this is to buy their model branded phone.
So as far as band support and such, I'm not sure how much band support there is in the factory unlocked editions. Likely the phone will work fine with the carriers, but don't expect certain special network features to be supported, or 100% compatibility (I don't know if flashing their firmware to your phone can fix this part)
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Click to collapse
Hey I have the Galaxy S7 Edge Olimpic edition which is basically the US unlocked version. When I first inserted the Tmobile SIM card it automatically pulled the firmware from T-mobile, and surprise surprise special features that before were imposible on an unlocked phone like wi-fi calling work!!
spaniolo said:
Hey I have the Galaxy S7 Edge Olimpic edition which is basically the US unlocked version. When I first inserted the Tmobile SIM card it automatically pulled the firmware from T-mobile, and surprise surprise special features that before were imposible on an unlocked phone like wi-fi calling work!!
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Click to collapse
Really!! That's amazing!! Wonder if that'll work with the US unlocked version of S8 as well (sadly not bootloader unlocked though)
BBRecon said:
Really!! That's amazing!! Wonder if that'll work with the US unlocked version of S8 as well (sadly not bootloader unlocked though)
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My understanding is that the US unlocked does support all US carriers features, while the International unlocked does not. And the bonus it is still no carrier's bloatware.
I was looking to buy the Galaxy Note 8, and is it worth buying the Unlocked version over the ATT version? I know I will save a little money, and also have less bloatware. I could not find much info on the basebands of these phones, there would not really be any basebands the unlocked version wouldnt have that the ATT version has? I assume that it would just be smarter to get the unlocked version?
Someone correct me if I am wrong
Sorry this is somewhat unrelated to the S8+
Thanks
Somebody mentioned the carrier specific ones may get updates more frequently. Regardless, the only unlock that really matters to me is bootloader unlock. US Snapdragon S8/S8+ are not bootloader unlocked--regardless whether the model is carrier unlocked or not. Only the Chinese and Hong Kong Snapdragon S8/S8+ bootloaders can be unlocked so far. My recommendation is to pre-order the Note 8 as you were interested in that phone, but that if you were planning on sticking with the same carrier and wanted updates more frequently, getting a carrier specific Note 8 might be best.
I'm in the same situation. I currently with att prepaid, they have LTE+ (LTE advanced). I did speed test twice, getting 127mb down, 30mb up, 115mb down, 28mb up. I'm not sure if unlocked version note8 has all the LTE bands. I thinking of just getting att version and if I want to switch carrier in the future, I just pay for those unlock service.
netnerd said:
I thinking of just getting att version and if I want to switch carrier in the future, I just pay for those unlock service.
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Be careful about those assumptions, make sure the AT&T variant has all the bands needed for full rate.
Recently switched from ATT to Verizon, and ended up getting a new phone (not *really* complaining since it's the GS8+) because my 1 yr old GS7edge AT&T model didn't have support for the correct LTE bands to work properly with the Verizon network.
I'm planning on staying with the same carrier, I just figure I'd get update faster, have less bloat ware, and have more lte bands (with the unlocked version)
Isn't that all accurate?
ALL the US versions have the same exact hardware and support the same exact bands. The ONLY difference is the carrier specific firmware. And you can change that by flashing whichever firmware you want through ODIN.
brendan4t said:
I was looking to buy the Galaxy Note 8, and is it worth buying the Unlocked version over the ATT version? I know I will save a little money, and also have less bloatware. I could not find much info on the basebands of these phones, there would not really be any basebands the unlocked version wouldnt have that the ATT version has? I assume that it would just be smarter to get the unlocked version?
Someone correct me if I am wrong
Sorry this is somewhat unrelated to the S8+
Thanks
Click to expand...
Click to collapse
I have both S8 T-mobile and S8 unlocked. They have identical LTE bands. Moreover, when inserting SIM cards from different providers the CSC is changed to that provider and some specific options are enabled. I put in T-mobile SIM card and used it without any issues. Put in Vodaphone Europe SIM card and CSC changed from TMB to XAA (unlocked) and phone still had all LTE bands available and worked. I'm sure it's the same for ATT. Also, from previous experience if you get ATT version and change providers you'll not get updates anymore unless you go to Samsung to have your phone updated, as all OTA's go through ATT servers.
Go for unlocked.
Hey all,
I'm looking at getting an Exynos or an HK version of the S22 series. I saw none of the other versions besides the U supports bands 29 and 30 that AT&T uses. Since they seem to be the more minor bands, how much does it matter and how much does the lack of those bands impact service? And does AT&T ban those S22 versions from their 5G networks?
I'm starting to get tired of OP, but I want something I can tinker without having to deal with AT&T's Sammy versions.
Thanks!
AT&T won't support the international models on their network or so various users have said in other posts. You end up locked out. T-Mobile doesn't do this but the long range 5G and LTE band 71 is missing from the international versions which would mean no coverage in any areas using band 71. Either way you are screwed on AT&T and T-Mobile. Don't have any info on Verizon. Best suggestion is. (Don't Do It)
Paul_Deemer said:
AT&T won't support the international models on their network or so various users have said in other posts. You end up locked out. T-Mobile doesn't do this but the long range 5G and LTE band 71 is missing from the international versions which would mean no coverage in any areas using band 71. Either way you are screwed on AT&T and T-Mobile. Don't have any info on Verizon. Best suggestion is. (Don't Do It)
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Click to collapse
Crap. Guess my only option would be getting an AT&T version and using a paid service to unlock the BL and SIM.
We already tried T-Mobile last year and had a really bad experience with service and network quality, so they're out.
Thanks for the info!
You might want to rethink the Exynos version and look at one of the SD versions that can be rooted.
I am afraid you will not be able to get the bootloader unlocked (I may be wrong there). Rooting is not possible on the US or Canadian S22. I just switched to TMO this year and so far have had no issues. I use their 5G home internet too.
dalepl said:
You might want to rethink the Exynos version and look at one of the SD versions that can be rooted.
Click to expand...
Click to collapse
So is that the Hong Kong and Korea versions? Again brings up the question of if bands 29 and 30 missing impacts service and if so, how much.
If I get an AT&T BL unlocked with a paid service, can I root using the method listed in another thread?
Superguy said:
Crap. Guess my only option would be getting an AT&T version and using a paid service to unlock the BL and SIM.
We already tried T-Mobile last year and had a really bad experience with service and network quality, so they're out.
Thanks for the info!
Click to expand...
Click to collapse
I don't see the S22 series in the list yet. So might wanna further research that.
PSA: Unlock Bootloader on Snapdragon Galaxy Devices with SamPWND (Paid Service)
SamPWND is a paid remote service that allows you to unlock the bootloader on Snapdragon Samsung Galaxy devices sold in the USA and Canada.
www.thecustomdroid.com
There are many posts on here attesting to the fact that the US models of the S22 cannot be rooted. The BL cannot be unlocked, so no root.
May I ask what you are trying to achieve with root? Do you have something in mind or do you just want a custom ROM. There are other issues with rooting the phone. Main one is loss of Knox. This will stop the Samsung apps from working. So there is a trade-off no matter what.
dalepl said:
May I ask what you are trying to achieve with root? Do you have something in mind or do you just want a custom ROM. There are other issues with rooting the phone. Main one is loss of Knox. This will stop the Samsung apps from working. So there is a trade-off no matter what.
Click to expand...
Click to collapse
There are magisk mods I run on my phone as well as some Xposed mods.
Not terribly concerned about Samsung apps. I haven't had a Samsung phone in years. Last one I had was an S8 and I only got that thru insurance when I lost my OP6.
Understand. Just wanted to let you know that things like Samsung Pay and Health Monitoring will no longer work and this can not be fixed if you change your mind. I did read that AT&T will ban any international phone from their network, so you do not want to go that way if you intend on staying with them. I think there was talk about the Korean model being SD and was missing band 71 (I think). There is no full solution out there unless a way comes along to unlock the BL.
dalepl said:
Understand. Just wanted to let you know that things like Samsung Pay and Health Monitoring will no longer work and this can not be fixed if you change your mind. I did read that AT&T will ban any international phone from their network, so you do not want to go that way if you intend on staying with them. I think there was talk about the Korean model being SD and was missing band 71 (I think). There is no full solution out there unless a way comes along to unlock the BL.
Click to expand...
Click to collapse
AT&T doesn't use 71, so not a big deal. T-Mo did.
We tried T-Mo in the summer and had a horrible experience. We went running back to AT&T after 3 months.
When you say banned, are you talking about just the 5G or the entire network? I'm already blocked from 5G with my OP phones. I can't say I miss it as I wasn't impressed with it on T-Mo, and LTE does what I need it to do. Outright banning seems like a stupid thing to do, especially as a lot of foreign travelers could very well end up using AT&T while they're here. But then again, it IS AT&T ...
From what I read, AT&T will ban your IEMI if it is an international phone so it will not work on their network. They are the only ones that do this as far as I know.
https://forum.xda-developers.com/t/...lash-official-firmware-noob-friendly.4404283/
Check this out. Long read through all the posts, but may be able to answer your questions. There are other discussions on the US models and international models, so just look around.
You ain't gonna win with the U.S. Carriers. They absolutely don't want you rooting your phone on their networks. Why do you think all U.S. models have unlockable bootloader's when shipped from Samsung? Because they demand it. They also know you will try to get around it and when you do they will screw you by banning your device. If you gotta have a rooted phone move to another country lol.