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[Q] T-Mobile Samsung Galaxy S 4G on AT&T Network..

I gave my old Samsung Galaxy S 4G phone that I had on T-Mobile to my girlfriend and unlocked it through t-mobile to be able to use it on her AT&T network. She placed her AT&T sim card in the phone and I unlocked it. The phone works fine but it will not go past "Edge" speed, is this due to the different network frequencies or is there anything else there can be done so she can get 3g at least? Would I have to Root the phone to be able to do so or is there any other easier ways to go about it? Thanks in advance for your help.

MeetGameteXY said:
The phone works fine but it will not go past "Edge" speed, is this due to the different network frequencies or is there anything else there can be done so she can get 3g at least? Would I have to Root the phone to be able to do so or is there any other easier ways to go about it? Thanks in advance for your help.
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Click to collapse
I switched to AT&T to get the HTC One X, but I hated that phone (but it had a nice camera), so I got the AT&T Galaxy Note.
I unlocked my SGS4G so I could use it on AT&T to test radio changes, but also I noticed that I only got edge. If I go outside on a really sunny day sometimes I see it get hspa, but I don't think t-mobile phones can get 4G on AT&T's network.
I would expect at most getting edge. The ONE time I did see the phone go to hspa, I still didn't see xfer rates increase. It was slow as hell.
I think the answer is finding the right modem.bin. Our radio device is a little different then the other galaxy s phones, and most of the ones that use this same modem are on t-mobile. I'm hoping to find another phone that uses the same modem on at&t.

What he ^^ said

What he ^^ said

yea, I know... old thead is old.
bhundven said:
I switched to AT&T to get the HTC One X, but I hated that phone (but it had a nice camera), so I got the AT&T Galaxy Note.
I unlocked my SGS4G so I could use it on AT&T to test radio changes, but also I noticed that I only got edge. If I go outside on a really sunny day sometimes I see it get hspa, but I don't think t-mobile phones can get 4G on AT&T's network.
I would expect at most getting edge. The ONE time I did see the phone go to hspa, I still didn't see xfer rates increase. It was slow as hell.
I think the answer is finding the right modem.bin. Our radio device is a little different then the other galaxy s phones, and most of the ones that use this same modem are on t-mobile. I'm hoping to find another phone that uses the same modem on at&t.
Click to expand...
Click to collapse
Actually, I was wrong. I was hitting the same stupid build prop thing where you're only on hspa if you're using data. If not it bumps you down to 3g.
AT&T works fine on this device.

AT&T on T-Mo Galaxy S 4G
bhundven said:
Actually, I was wrong. I was hitting the same stupid build prop thing where you're only on hspa if you're using data. If not it bumps you down to 3g.
AT&T works fine on this device.
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Click to collapse
Yeah, I just recently moved to AT&T bringing this phone. It shows a 3g status but seems to be as fast as it was on T-Mo but depending on the location. My wife has the same device on T-Mo and we drove from Chicago to Florida finding that usually one of us had a signal.
The visual voicemail isn't available from AT&T on this phone but the basic v/m works

I need help on unlocking my SGS4G for AT&T. Every time I try the app method, it either returns the code as "null" or has some busybox error. And the hexcode method doesn't work because mobile terminal can't find the file on my phone. I am running Beanstalk 4.4 ROM, and it is rooted. How can I unlock it?

Jay_P11 said:
I need help on unlocking my SGS4G for AT&T. Every time I try the app method, it either returns the code as "null" or has some busybox error. And the hexcode method doesn't work because mobile terminal can't find the file on my phone. I am running Beanstalk 4.4 ROM, and it is rooted. How can I unlock it?
Click to expand...
Click to collapse
Try going back to BML and unlocking there as the methods that you'll find on this forum are more reliable that way.
This is one of the free methods I have:
http://forum.xda-developers.com/showthread.php?t=1419468
If you still can't get it to work, I do have a paid app on Google Play that can work for you:
http://forum.xda-developers.com/showthread.php?t=2243585

FBis251 said:
Try going back to BML and unlocking there as the methods that you'll find on this forum are more reliable that way.
This is one of the free methods I have:
http://forum.xda-developers.com/showthread.php?t=1419468
If you still can't get it to work, I do have a paid app on Google Play that can work for you:
http://forum.xda-developers.com/showthread.php?t=2243585
Click to expand...
Click to collapse
It is on BML, I'll try those methods but if they don't work I'll probably have to flash back to stock, root, and then unlock it.

Bml= stock...

champ1919 said:
Bml= stock...
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Click to collapse
I've read countless posts on here saying that was just a kernel... Thanks for the correction

@champ1919 is correct, BML refers to stock touchwiz roms. I recommended that because although I don't own this phone anymore, I wrote the unlock script a while back and I know it works fine on stock roms if you install busybox from google play, after rooting the phone.
Once your phone is unlocked, any newer roms you install will keep the unlock and if you decide to go back to stock after THAT, your phone will still remain unlocked.

FBis251 said:
@champ1919 is correct, BML refers to stock touchwiz roms. I recommended that because although I don't own this phone anymore, I wrote the unlock script a while back and I know it works fine on stock roms if you install busybox from google play, after rooting the phone.
Once your phone is unlocked, any newer roms you install will keep the unlock and if you decide to go back to stock after THAT, your phone will still remain unlocked.
Click to expand...
Click to collapse
This seems like the most sure fire way of going about this, I haven't had time to do it yet but I think I'll go with stock then unlock.

Smart call and other Samsung features?

I've been combing the forums and I haven't been able to find an answer to my question, sorry if it's been posted before and I didn't see it.
So I'm making the switch from a Verizon Galaxy S8+ to an AT&T Note 8. I know Verizon blocked a bunch of Samsung features and I wanted to know if they're available on the AT&T variant? My Note 8 won't be delivered until 10/18 so I'm just preparing myself. Lol
Features I really want:
-Smart Call (I know this is deactivated on almost every carrier)
-Samsung Cloud
-Device Maintenance
Does the AT&T dialer have the nearby places feature? I haven't been able to tell from any videos I've found and I haven't been able to go into a carrier store to see a demo unit.
I was able to get all of these features on my Verizon S8+ by flashing the regular U1 software, but I lost all of the Verizon features I needed (Visual Voicemail, WiFi Calling, and carrier billing for Play Store). So i'm wondering if it would be worth it for the Note 8? Or are the features I'm inquiring about enabled on the AT&T variant?
I saw some people were saying they were having LTE and WiFi calling issues with unlocked devices on AT&T so I'm a little weary of flashing the unlocked version onto it.
Thanks in advance!

Samsung Cloud and device maintenance are both on AT&T.
Not sure what smart call is.

ShrekOpher said:
Samsung Cloud and device maintenance are both on AT&T.
Not sure what smart call is.
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Click to collapse
Awesome! 2 out of 3 features is good.
Basically just the Caller ID feature built-in by Samsung. I doubt it would make the cut as carriers usually charge for it as a premium service and they don't want Samsung to provide it for free.
It also adds a "Places" section in the stock dialer. I know that specific feature was also available in the T-Mobile S8+ when i had it briefly, but for some reason was removed by Verizon.
http://www.samsung.com/global/galaxy/apps/smart-call/
http://www.deteched.com/2017/09/18/activate-samsungs-caller-id-spam-protection-galaxy-note-8/amp/

SimplyNando said:
Awesome! 2 out of 3 features is good.
Basically just the Caller ID feature built-in by Samsung. I doubt it would make the cut as carriers usually charge for it as a premium service and they don't want Samsung to provide it for free.
It also adds a "Places" section in the stock dialer. I know that specific feature was also available in the T-Mobile S8+ when i had it briefly, but for some reason was removed by Verizon.
http://www.samsung.com/global/galaxy/apps/smart-call/
http://www.deteched.com/2017/09/18/activate-samsungs-caller-id-spam-protection-galaxy-note-8/amp/
Click to expand...
Click to collapse
Looks like it has nearby places as well even though I've never used it.

Places is there

ShrekOpher said:
Looks like it has nearby places as well even though I've never used it.
Click to expand...
Click to collapse
Awesome. So it has the feature, it's just probably stripped down. Probably can be activated by flashing the unlocked software on it down the road.
Thanks for checking!

Smart Call feature is not available on the AT&T Note 8.
Looks cool too.

SimplyNando said:
Awesome. So it has the feature, it's just probably stripped down. Probably can be activated by flashing the unlocked software on it down the road.
Thanks for checking!
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Click to collapse
I flashed the unlocked firmware on my AT&T Note8 and Smart call is working on it. Didn't realize how much I got Spam numbers until I didnt have it. I'm glad I flashed the unlocked firmware to get it.
Composed on Galaxy Note8

GallardosEggrollShop said:
I flashed the unlocked firmware on my AT&T Note8 and Smart call is working on it. Didn't realize how much I got Spam numbers until I didnt have it. I'm glad I flashed the unlocked firmware to get it.
Composed on Galaxy Note8
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Click to collapse
That's what i think i'm going to do. And i didn't realize exactly how much bloatware is on the AT&T version so i'll be flashing the unlocked version on it today.
Did you flash the regular, unbranded one or the AT&T version? Which features did you lose?

SimplyNando said:
That's what i think i'm going to do. And i didn't realize exactly how much bloatware is on the AT&T version so i'll be flashing the unlocked version on it today.
Did you flash the regular, unbranded one or the AT&T version? Which features did you lose?
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Click to collapse
I flashed the regular, unbranded version. Only thing I noticed I lost was Wi-Fi Calling and VoLTE which I can live with. Didn't realized there was an Unlocked AT&T version of the firmware, might give that a go but I've got my phone set up perfect enough that I might be too lazy to do that hahhaha.

GallardosEggrollShop said:
I flashed the regular, unbranded version. Only thing I noticed I lost was Wi-Fi Calling and VoLTE which I can live with. Didn't realized there was an Unlocked AT&T version of the firmware, might give that a go but I've got my phone set up perfect enough that I might be too lazy to do that hahhaha.
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Oh nice. I've got really crappy service inside my house, so I need the WiFi calling. I think i'll give it a try later today and see if it still has the features i need.

SimplyNando said:
Oh nice. I've got really crappy service inside my house, so I need the WiFi calling. I think i'll give it a try later today and see if it still has the features i need.
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I have the same crap coverage in my house too. So i use Wi-Fi Calling all the time. There is the AT&T Call Protect app that in essence does the exact same thing as the Smart Call (I'm using that too)

kangi26 said:
I have the same crap coverage in my house too. So i use Wi-Fi Calling all the time. There is the AT&T Call Protect app that in essence does the exact same thing as the Smart Call (I'm using that too)
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True, I saw that's it's powered by Hiya, which is the same app for the smart call. Mine just doesn't seem to be working. I've gotten 3 spam calls already and that app hasn't shown anything. AT&T should just let that service go and use the built in Smart Call lol
For now, I just installed the actual Hiya app so i can get a popup along with the call to see who's calling. Gonna just flash the AT&T version of the unlocked software!

Yeah, AT&T's Call Protect never worked for me either.

Where can i find the unlocked att firmware?

Call protect is working for me. The other day I had a random number call and it labeled it as a telemarketer right by the number. From there you can block the number from ever calling again and additionally it is automatically setup to block potential fraud calls.

AT&T Call Protect has been working for me too, I have been getting a ton of calls and it always labels them as potential fraud and auto blocks it and i also get them labeled as telemarketer a lot.

Unlocked Pre-Order from Samsung w ATT SIM - will I be able to use WiFi calling /VoLTE

Current Note8 user on ATT (phone locked to carrier). I pre-ordered a Note20 Ultra from Samsung direct, unlocked version. Have been off XDA really for a couple years and not rooting/modding much lately but have read that ATT will not allow unlocked phones on their network to use WiFi Calling and/or VoLTE. If true, are there workaround options for me (assuming I stick w ATT as the carrier I mean) to get these to work, or should I cancel the unlocked model and order the ATT version? Was hoping to root eventually and remove bloatware / play w custom ROMs again on the Ultra etc etc. - that is why I ordered an unlocked version.
Thanks gents for the guidance here! Best forum around for us phone geeks

If it will be like Note 9 or 10 plus just have to flash the U version csc with odin and it will give you wifi calling advanced..messaging..volte
Sent from my SM-N960U using Tapatalk

butchieboy said:
If it will be like Note 9 or 10 plus just have to flash the U version csc with odin and it will give you wifi calling advanced..messaging..volte
Sent from my SM-N960U using Tapatalk
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Click to collapse
Much thanks - I will do this then when it arrives.

Did not work for me on the unlocked note 10+. Worked right away on the tmobile.
Att was actually fun to have. Nothing that att expected worked on the unlocked device. For example I had unlimited hotspot, despite it was not included in my att plan.

Elastep said:
Did not work for me on the unlocked note 10+. Worked right away on the tmobile.
Att was actually fun to have. Nothing that att expected worked on the unlocked device. For example I had unlimited hotspot, despite it was not included in my att plan.
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Click to collapse
That's bizarre. I am rethinking this unlocked route. I must have wifi calling since signal at the house is terrible in my area. I don't need the drama of uncertainty if this will work or not. Might as well cancel the unlocked one and just upgrade via att. Oy. Wtf is with att these days? They lost my directv account last year and now their wireless policies are looking like a royal pita.

I don't think you have to worry .... ATT seems to consistently allow Samsung unlocked devices to have carrier functions
You just have to flash the U CSC as mentioned above. Worked for me on Note 10 and is currently working on a s20 ultra device

Jcrompton
Whats going on buddy. You jumping on the Ultra?
Sent from my SM-N975U using Tapatalk

I strongly recommend switching your order to the ATT model. I got my note 10+ unlocked based off the suggestions found here saying that flashing the att firmware would give me all the features, and I've been through a year of headaches.
For a little wile i was able to enjoy wifi calling, voicemail and VOLTE, but after my first software update the features were lost. i was able to get them back briefly by putting my sim back in an old Att phone and keeping it for a day or two, but that trick never lasted past a week. I've tried re-flashing the software, switching back to unlocked and then back to ATT, basically anything i could think of and it never worked.
calling ATT didn't help either, as the reps gave me a canned line about not supporting outside phones. the whole reason I'm updating to the 20 ultra is to just get my phone fully functional with an ATT model

Darthshadow666 said:
I strongly recommend switching your order to the ATT model. I got my note 10+ unlocked based off the suggestions found here saying that flashing the att firmware would give me all the features, and I've been through a year of headaches.
For a little wile i was able to enjoy wifi calling, voicemail and VOLTE, but after my first software update the features were lost. i was able to get them back briefly by putting my sim back in an old Att phone and keeping it for a day or two, but that trick never lasted past a week. I've tried re-flashing the software, switching back to unlocked and then back to ATT, basically anything i could think of and it never worked.
calling ATT didn't help either, as the reps gave me a canned line about not supporting outside phones. the whole reason I'm updating to the 20 ultra is to just get my phone fully functional with an ATT model
Click to expand...
Click to collapse
Thanks darth. Yeah, I switched to the att version. Hate the hidden tracking bloatware etc that comes with it but must have a very workable phone for daily work calls and wifi calling is a must. No drama is my motto these days. Thank you for reporting your experience.

I had the same situation with my unlocked Pixel 4 XL, keep calling ATT until I got the right person to modify my sim to allow WiFi Calling to work, that's my plan when I get my unlocked 20 Ultra.

I'm not a gent, but I doI have the Note 20 Ultra in for review and am using it with an AT&T SIM. VoLTE works, no option for WiFi calling.
jaxf250 said:
Current Note8 user on ATT (phone locked to carrier). I pre-ordered a Note20 Ultra from Samsung direct, unlocked version. Have been off XDA really for a couple years and not rooting/modding much lately but have read that ATT will not allow unlocked phones on their network to use WiFi Calling and/or VoLTE. If true, are there workaround options for me (assuming I stick w ATT as the carrier I mean) to get these to work, or should I cancel the unlocked model and order the ATT version? Was hoping to root eventually and remove bloatware / play w custom ROMs again on the Ultra etc etc. - that is why I ordered an unlocked version.
Thanks gents for the guidance here! Best forum around for us phone geeks
Click to expand...
Click to collapse

What worries me is the 5G. Will unlocked work for ATT 5G?

It does on my unlocked Galaxy S20+ 5G. The Note 20 Ultra is a ways to release and their system doesn't yet correctly identify the IMEI, so I can't say for sure what will happen after release day.
b00st4ddicted said:
What worries me is the 5G. Will unlocked work for ATT 5G?
Click to expand...
Click to collapse

pdagal said:
I'm not a gent, but I doI have the Note 20 Ultra in for review and am using it with an AT&T SIM. VoLTE works, no option for WiFi calling.
Click to expand...
Click to collapse
Hi Lisa,
Your reviews are the best, so thank you first of all. Can you check if it has any eSIM capabilities? Supposedly S20 was going to get an update to allow eSIM use in US but that never happened...

Thanks . I'm not seeing anything under connection settings on our US unlocked Note 20 Ultra (there's no IMEI listed or cellular network option listed under connection settings when no nano SIM is installed. EsimClient is running on the phone, which makes me think the hardware must be there. EsimClient is not running on my GS 20+ unlocked.
VICosPhi said:
Hi Lisa,
Your reviews are the best, so thank you first of all. Can you check if it has any eSIM capabilities? Supposedly S20 was going to get an update to allow eSIM use in US but that never happened...
Click to expand...
Click to collapse

pdagal said:
Thanks . I'm not seeing anything under connection settings on our US unlocked Note 20 Ultra (there's no IMEI listed or cellular network option listed under connection settings when no nano SIM is installed. EsimClient is running on the phone, which makes me think the hardware must be there. EsimClient is not running on my GS 20+ unlocked.
Click to expand...
Click to collapse
Great, thank you for checking and comparing with S20+ !
eSIMClient running gives me hope that we will get eSIM support in an update...Still perplexed how or why Samsung has gone out of the way to disable eSIM on US variants when Apple, Google support it.

pdagal said:
I'm not a gent, but I doI have the Note 20 Ultra in for review and am using it with an AT&T SIM. VoLTE works, no option for WiFi calling.
Click to expand...
Click to collapse
Ha! Thanks Lisa (love your tech vids!!) - I switched to the ATT version. Supposed to be here 8/21. I can't take a chance with wifi calling being borked, or that just that I may need to Odin-flash updates or CSC packs periodically to keep up with the monthly patches (ie force an unlocked unit to keep working on ATT's network if my previous firmware gets overwritten etc. I mean). I guess as I got older I went from a tech pioneer and adopter to just an end user LOL.... I just need it to work. Maybe I can do that package remove thingy and chop the bloatware periodically... we shall see once the community gets these units and starts their dev magic for us.
I guess I will need to make an appt at the local ATT store in a week to get on a new 5G plan from my current 4G one to take advantage of the coming speeds.

You're welcome- glad you enjoy our vids! With AT&T, you can simply change your plan online, no need to visit a store. The mid and high tier unlimited plans include 5G.
jaxf250 said:
Ha! Thanks Lisa (love your tech vids!!) - I switched to the ATT version. Supposed to be here 8/21. I can't take a chance with wifi calling being borked, or that just that I may need to Odin-flash updates or CSC packs periodically to keep up with the monthly patches (ie force an unlocked unit to keep working on ATT's network if my previous firmware gets overwritten etc. I mean). I guess as I got older I went from a tech pioneer and adopter to just an end user LOL.... I just need it to work. Maybe I can do that package remove thingy and chop the bloatware periodically... we shall see once the community gets these units and starts their dev magic for us.
I guess I will need to make an appt at the local ATT store in a week to get on a new 5G plan from my current 4G one to take advantage of the coming speeds.
Click to expand...
Click to collapse

I flashed my unlocked Note 10 plus and didnt get wifi calling, visual voicemail, VOLTE.....only reason I am up grading is to get an ATT version, and to skip all the hassle of an unlocked version. Never again.

pdagal said:
I'm not a gent, but I doI have the Note 20 Ultra in for review and am using it with an AT&T SIM. VoLTE works, no option for WiFi calling.
Click to expand...
Click to collapse
Could you tell me more. I have the US unlocked note 20 ultra, I put an AT&T sim in (from my note 9 unlocked) and I can't find an option to turn on wifi calling. I pretty much gave up on feature like this, because I would rather have the unlocked phone, but if it works now maybe I am missing something.
Thanks
Sent from my Samsung SM-N960U1 using XDA Labs

Fold 2 AT&T Firmware help

I ended up buying an Unlocked Fold 2 on AT&T and now realize that there is no WiFi calling. I am looking to flash the AT&T firmware on it but I cant seem to find it. Guessing its either not available yet or I'm just dense hoping for the latter lol. Can anyone help me find the AT&T firmware to flash, thanks.

Well I found the ATT firmware on SamMobile and flashed it but still dont have WiFi calling. Anyone have any ideas or a different firmware to flash to get that feature?

SoaringSpoon said:
Well I found the ATT firmware on SamMobile and flashed it but still dont have WiFi calling. Anyone have any ideas or a different firmware to flash to get that feature?
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Click to collapse
Really? I didn't see an AT&T f916u firmware on SamMobile. Unless its an AT&T firmware with USERDATA file then you will not have working Wi-Fi calling.

nunyabiziz said:
Really? I didn't see an AT&T f916u firmware on SamMobile. Unless its an AT&T firmware with USERDATA file then you will not have working Wi-Fi calling.
Click to expand...
Click to collapse
Oh I thought the f916u1 that says AT&T was the firmware. Super glad then so there is a chance that sometime later something will be uploaded? Yeah not to knowledgeable with this stuff so just saw AT&T and thought that was it. Well I will have to check that site for a little while fingers crossed.

Guessing from past devices, once a "branded" complete AT&T firmware becomes available for the Z Fold 2 then you should be able to have the option for Wi-Fi calling of course your SIM has to also be provisioned for this feature. I think if you can wait it out, you will be able to have Wi-Fi calling at some point.

I bought a Tmobile one even though i use Google Fi (which basically uses Tmobile only on non Fi phones). I flashed the unlocked firmware SM-F916U1 and i have Wifi Calling. I choose XAA.

nunyabiziz said:
Guessing from past devices, once a "branded" complete AT&T firmware becomes available for the Z Fold 2 then you should be able to have the option for Wi-Fi calling of course your SIM has to also be provisioned for this feature. I think if you can wait it out, you will be able to have Wi-Fi calling at some point.
Click to expand...
Click to collapse
Is it normal for it to take this long to get the branded firmware? I'm also in SoaringSpoon's shoes, I can't get a reliable signal from where I live.

bigfire said:
Is it normal for it to take this long to get the branded firmware? I'm also in SoaringSpoon's shoes, I can't get a reliable signal from where I live.
Click to expand...
Click to collapse
Every big US carrier but AT&T is up now on the F916U on SamFrew rn so I am hoping AT&T follows shortly. Far easier than exchanging the phone. Or what I would immage actually would happen, returning it and buying a new one lol.

bigfire said:
Is it normal for it to take this long to get the branded firmware? I'm also in SoaringSpoon's shoes, I can't get a reliable signal from where I live.
Click to expand...
Click to collapse
It's just an AT&T thing. AT&T don't make firmwares available publicly. AT&T exclusive features like Wi-Fi calling and HD Voice aka Voice over LTE are usually not available to unlocked devices with a few exceptions like the Pixel and the recent S20 series. Fortunately for us here at XDA, I'm speaking for past experiences that there were AT&T firmwares available from either SamMobile or people here with access to the AT&T servers. Hardware wise, US Samsung phones should all be the same with exception of maybe Verizon due to their radio requirement differences. So all carriers features should work on all devices providing 1) correct software/firmware on the phone 2) the carrier's database sees the device as a capability device/system provisioned. I suggest that anyone looking for AT&T Samsung Firmwares, search the sub for maybe s9/s10/s20...see who in the past provided firmwares for this carrier, ask them. Hope this helps.

Hi I am on the same boat were you able to find the AT&T firmware for your galaxy z fold 2. If yes can you please help me. Thank you .
---------- Post added at 05:13 PM ---------- Previous post was at 05:12 PM ----------
SoaringSpoon said:
Well I found the ATT firmware on SamMobile and flashed it but still dont have WiFi calling. Anyone have any ideas or a different firmware to flash to get that feature?
Click to expand...
Click to collapse
Hi I am on the same boat were you able to find the AT&T firmware for your galaxy z fold 2. If yes can you please help me. Thank you .

Yup yup was posted a while ago apparently people having issues with it being in Spanish. Idkno didn't have that issue and was able to get WiFi calling and visual voicemail. Good Luck

SoaringSpoon said:
Yup yup was posted a while ago apparently people having issues with it being in Spanish. Idkno didn't have that issue and was able to get WiFi calling and visual voicemail. Good Luck
Click to expand...
Click to collapse
Is there any ways you can help me with the steps, do I need to first root the phone? I am new and does not understand too much. Appreciate your assistance.

JagXK8 said:
I bought a Tmobile one even though i use Google Fi (which basically uses Tmobile only on non Fi phones). I flashed the unlocked firmware SM-F916U1 and i have Wifi Calling. I choose XAA.
Click to expand...
Click to collapse
can you show me the link where the unlocked firmware SM-F916U1? Thank you for your help

ax.mp052017 said:
can you show me the link where the unlocked firmware SM-F916U1? Thank you for your help
Click to expand...
Click to collapse
Download Samsung Galaxy Z Fold 2 SM-F916U1 XAA USA F916U1UES1DUC1 firmware
Fast download latest Samsung Galaxy Z Fold 2 firmware SM-F916U1 from USA with F916U1UES1DUC1 and Android version 11
www.sammobile.com

Samsung galaxy 2 fold at&t Change Carrier

Hi
Have Samsung galaxy 2 fold at&t unlock
Can I change Carrier from att to t-mobile I flashing T-Mobile firmware or can I just Flash csc??

if your phone is sim-unlocked, once you insert a t-mobile simcard it will change the phone to t-mobile. no need to flash anything.

Stalix said:
if your phone is sim-unlocked, once you insert a t-mobile simcard it will change the phone to t-mobile. no need to flash anything.
Click to expand...
Click to collapse
Yes, it works for making phone calls, texts, even 5g. But you won't get OTA updates. At least that's what I was told. I'm typing from a purchased AT&T unlocked Fold 2, with a TMobile sim inside. It works fine, just no updates. Still on One UI 2.5, and android 10. I'm actually here hoping to change this by flashing a TMobile rom. I did a little research last night, and it seems a little scary with the danger of bricking the phone. Back in the PPC hayday of flashing roms, I was all over it. I even flashed a few roms on my s6 years ago, so I have some experience with Odin, but it still seems nerve wracking because I can't return this phone if I brick it. Bought it used.

vinscuzzy said:
Yes, it works for making phone calls, texts, even 5g. But you won't get OTA updates. At least that's what I was told. I'm typing from a purchased AT&T unlocked Fold 2, with a TMobile sim inside. It works fine, just no updates. Still on One UI 2.5, and android 10. I'm actually here hoping to change this by flashing a TMobile rom. I did a little research last night, and it seems a little scary with the danger of bricking the phone. Back in the PPC hayday of flashing roms, I was all over it. I even flashed a few roms on my s6 years ago, so I have some experience with Odin, but it still seems nerve wracking because I can't return this phone if I brick it. Bought it used.
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@vinscuzzy I feel you because I understand what you're going through. I used to flash my devices back in the day. I haven't flashed or rooted in a long time but like you, I also have an unlocked AT&T branded Z Fold2. It seems easy enough. Any reason why you would install the T-Mobile firmware rather than the U1 Unlocked version?

HoOnZ said:
@vinscuzzy Any reason why you would install the T-Mobile firmware rather than the U1 Unlocked version?
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Theoretically I would think the unlocked version would be better because when theres an update, I'm guessing, we wouldn't have to wait for the carriers to do their stuff to it. But I'm not 100% sure if that's how it works anymore. The last truly unlocked phone I had was a Nokia 1520.3, with windows mobile, and it was great, BUT if I remember correctly I had trouble with wifi calling, visual voicemail, and tethering. I actually asked @zimgir124 the same thing in the other thread about which one is more beneficial, but haven't heard back yet.

Well, I just found another thread on how we can go back to AT&T in case we need to.

If it's running well now I would not be concerned with updates. You could well end up with a less functional device by updating.