I am planing on going in US and I want to use a local sim card (ATT, Verizon, T-mobile, Sprint)
If I change the CSC as unbranded XAC would the VoLTE and wifi calling work from the operators?
You could try flashing the CSC part only from US U1 XAA firmware, then you might have to do a full factory reset (try without it first).
Let us know if it worked.
Most people around here say no. You'll have to flash the actual carrier firmware and then call them and give them your imei to activate the features.
prince_72 said:
I am planing on going in US and I want to use a local sim card (ATT, Verizon, T-mobile, Sprint)
If I change the CSC as unbranded XAC would the VoLTE and wifi calling work from the operators?
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Click to collapse
I bought Canadian S8 which says G950w model. But when I opened settings it says G950U1 which means I can use any sim carrier in any country. Firmware is XAA (USA unlocked)
Related
Hello,
I live in Switzerland and have a Exynos Galaxy S7. Will looking for accessories on Aliexpress, I noticed that the refurbished US variants sell for a huge discount compared to the SM-G930F (up to 80$) version. I saw that the G930F seems to support all LTE bands will the other are more constrained (but the AT&T version supports all the bands used in Europe as well). So my question is are they simlocked? Would they work in Europe (out of curiosity)?
Thanks
No advices?
You can get carrier unlocked US models which will accept any SIM, and they should work in the rest of the world. Of course network availability would vary, but you've already checked that. So if the US model supports all the bands your carrier uses you should be fine.
Only problem is the US model has a locked bootloader, so you can't use a custom recovery or ROMs. From memory root is possible but doing it is a bit different.
I'm not sure if you'd be able to flash your carriers CSC onto a US model phone, since the CSC would be built for the 930F. Which means OTA updates etc might not reach you, and you'll have to manually flash firmware updates.
Beanvee7 said:
You can get carrier unlocked US models which will accept any SIM, and they should work in the rest of the world. Of course network availability would vary, but you've already checked that. So if the US model supports all the bands your carrier uses you should be fine.
Only problem is the US model has a locked bootloader, so you can't use a custom recovery or ROMs. From memory root is possible but doing it is a bit different.
I'm not sure if you'd be able to flash your carriers CSC onto a US model phone, since the CSC would be built for the 930F. Which means OTA updates etc might not reach you, and you'll have to manually flash firmware updates.
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Click to collapse
Thanks a lot for your detailed answer
Sorry in advance if I missed the answer somewhere on here already...but I see a lot of posts about flashing carrier versions and switching carrier versions.
My question is, if I have the UNLOCKED US version (SM-N986U1) on my T-Mobile account, is there any benefit to using the TMB firmware vs. the XAA firmware...or is there any benefit to using he XAA instead of the TMB?
It came with XAA and I switched to TMB prior to joining the One UI 3.0 Beta. At some point I was having text message issues using Google Messages, but I can't remember which variant I was on when that happened. So, I basically want to use the firmware that will give me the best experience without a bunch of carrier crap.
Thanks in advance for the help!
I'm not sure what you mean by "came with XAA and I switched to TMB". Isn't the N986U1 XAA firmware identical to the N986U1 TMB firmware? But the N986U firmware is different from the N986U1 firmware, and differs for each carrier. You can flash either the N986U or the N986U1 firmware on your N986U1 phone.
Not sure...I may just not know what I'm talking about...lol. Under Software information and Service Provider Software Version, it ended with XAA/XAA/XAA when I first got it, but then I flashed the T-Mobile firmware and it has been TMB/TMB/XAA ever since.
Gary02468 said:
I'm not sure what you mean by "came with XAA and I switched to TMB". Isn't the N986U1 XAA firmware identical to the N986U1 TMB firmware? But the N986U firmware is different from the N986U1 firmware, and differs for each carrier. You can flash either the N986U or the N986U1 firmware on your N986U1 phone.
Click to expand...
Click to collapse
Not sure...I may just not know what I'm talking about...lol. Under Software information and Service Provider Software Version, it ended with XAA/XAA/XAA when I first got it, but then I flashed the T-Mobile firmware and it has been TMB/TMB/XAA ever since.
edwmsjr said:
Sorry in advance if I missed the answer somewhere on here already...but I see a lot of posts about flashing carrier versions and switching carrier versions.
My question is, if I have the UNLOCKED US version (SM-N986U1) on my T-Mobile account, is there any benefit to using the TMB firmware vs. the XAA firmware...or is there any benefit to using he XAA instead of the TMB?
It came with XAA and I switched to TMB prior to joining the One UI 3.0 Beta. At some point I was having text message issues using Google Messages, but I can't remember which variant I was on when that happened. So, I basically want to use the firmware that will give me the best experience without a bunch of carrier crap.
Thanks in advance for the help!
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Click to collapse
Well, you should have access to early updates as carriers usually get updates before unlocked versions and since ur already on Tmobile, you might get additional apps that work with Tmobile?
Go with the Unlocked (XAA). I converted my Verizon model to the Unlocked firmware and there are a lot fewer preloaded apps and other junk. T-Mobile services are apparently fully functional on the Unlocked model as well.
edwmsjr said:
Not sure...I may just not know what I'm talking about...lol. Under Software information and Service Provider Software Version, it ended with XAA/XAA/XAA when I first got it, but then I flashed the T-Mobile firmware and it has been TMB/TMB/XAA ever since.
Click to expand...
Click to collapse
Thank you!! I also got the US unlocked XAA and converted to TMB firmware... I have flashed multiple times XAA to TMB and TMB to XAA.. For unknown reason when I use speedtest, I see faster download speeds on the TMB variant... For example, with TMB I was getting 120 mb while on XAA I was getting 76.. I did this couple of time in a span of a week.. it was coming with similar differences..
Like you, I've been using TMB on my US unlocked as well.
visualpro said:
Thank you!! I also got the US unlocked XAA and converted to TMB firmware... I have flashed multiple times XAA to TMB and TMB to XAA.. For unknown reason when I use speedtest, I see faster download speeds on the TMB variant... For example, with TMB I was getting 120 mb while on XAA I was getting 76.. I did this couple of time in a span of a week.. it was coming with similar differences..
Like you, I've been using TMB on my US unlocked as well.
Click to expand...
Click to collapse
if you just want to move from XAA/XAA/XAA to TMB/TMB/XAA, you don't need to flash firmware, u can change CSC from XAA to TMB to achieve the same results.
Flashing firmware from XAA to TMB means u are moving from firmware of SM-N986U1 to firmware of SM-N986U (carrier branded).
HI all,
With CSC change not possible using codes with latest UI 3.1 update what are options to change CSC?
For ex. I have SM-N986U unlocked Tmobile device but i changed CSC to ATT as im currently using ATT Prepaid and I'm on latest Apr update for ATT
How can i revert back to Tmobile CSC?
Do i need to flash Tmobile firmware using ODIN by first flashing to U1 firmware then Tmobile firmware or can i directly flash Tmobile latest firmware with Apr update using ODIN?
Will i be able to retain my app and data if I flash Tmobile firmware?
Any help will be appreciated.
Thanks
So you state csc change not possible then ask how to change it? lol.. and if it were as easy to just flash firmware in odin tgen that wouldve been the way to do it to begin with I would think lol
Update:
I was able to change CSC(ATT/ATT/TMB) to TMB/TMB/TMB but it was long and winded way. Just flashing firmware was not enough , need Tmobile sim to install carrier service and change CSC.
I followed the steps below:-
1) Did backup of my device using Smart Switch and removed my ATT sim.
2) Flashed latest T-Mobile firmware( N986USQU2DUC8 ) using instructions from post - https://forum.xda-developers.com/t/ota-and-non-ota-firmware-for-n986u-and-n986u1.4143833/ . Also, downloaded the ODIN (patched version) and T-Mobile firmware from links in the post. Flashed HOME_CSC too.
3) After rebooting phone with new firmware , the boot up screen was still ATT and CSC was still ATT/ATT/TMB.
4)Shut down phone and inserted Tmobile SIM i had lying around.
5) On reboot, i was asked to install Tmobile carrier services and on restart , Tmobile logo came on boot up with CSC changed to TMB/TMB/TMB.
6) Now, i have esim enabled and SIM manager showing up too.
mindseye0803 said:
Update:
I was able to change CSC(ATT/ATT/TMB) to TMB/TMB/TMB but it was long and winded way. Just flashing firmware was not enough , need Tmobile sim to install carrier service and change CSC.
I followed the steps below:-
1) Did backup of my device using Smart Switch and removed my ATT sim.
2) Flashed latest T-Mobile firmware( N986USQU2DUC8 ) using instructions from post - https://forum.xda-developers.com/t/ota-and-non-ota-firmware-for-n986u-and-n986u1.4143833/ . Also, downloaded the ODIN (patched version) and T-Mobile firmware from links in the post. Flashed HOME_CSC too.
3) After rebooting phone with new firmware , the boot up screen was still ATT and CSC was still ATT/ATT/TMB.
4)Shut down phone and inserted Tmobile SIM i had lying around.
5) On reboot, i was asked to install Tmobile carrier services and on restart , Tmobile logo came on boot up with CSC changed to TMB/TMB/TMB.
6) Now, i have esim enabled and SIM manager showing up too.
Click to expand...
Click to collapse
thats the normal process.. that firmware is same for each carrier.. firmware is multi csc which changes based on sim inserted.. shouldnt have to go through all of that really.. i think most ppl who have issues are trying to change csc without a active sim card or on carrier locked devices etc.
glad u figured it out tho!
elliwigy said:
thats the normal process.. that firmware is same for each carrier.. firmware is multi csc which changes based on sim inserted.. shouldnt have to go through all of that really.. i think most ppl who have issues are trying to change csc without a active sim card or on carrier locked devices etc.
glad u figured it out tho!
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Click to collapse
Well, the confusion for most ppl who are new to Samsung and CSC, like me , is that we could change CSC with code earlier and now cannot. Didn't have these issues with pixel and iPhone.
mindseye0803 said:
Well, the confusion for most ppl who are new to Samsung and CSC, like me , is that we could change CSC with code earlier and now cannot. Didn't have these issues with pixel and iPhone.
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Click to collapse
pixel and iphone dont have multi csc like samsung does.. just curious, when were u able to change csc with code earlier if ur new to samsung? lol
elliwigy said:
pixel and iphone dont have multi csc like samsung does.. just curious, when were u able to change csc with code earlier if ur new to samsung? lol
Click to expand...
Click to collapse
Yes, I was able to change CSC to ATT from TMobile, enable all LTE/5G bands before One UI update.Not, sure what u find so funny .
Yes, I'm aware that there is no CSC concept in pixel or iPhone or any other other manufacturer that I'm aware nor they are crippled in terms of hardware capability from carrier software like Samsung. LTE/5G bands not being enabled , esim not being enabled etc.
mindseye0803 said:
Yes, I was able to change CSC to ATT from TMobile, enable all LTE/5G bands before One UI update.Not, sure what u find so funny .
Yes, I'm aware that there is no CSC concept in pixel or iPhone or any other other manufacturer that I'm aware nor they are crippled in terms of hardware capability from carrier software like Samsung. LTE/5G bands not being enabled , esim not being enabled etc.
Click to expand...
Click to collapse
actually other devices are crippled in some cased disabled entirely.. for example u cant get a tmb oneplus 9 pro 5g and use it on verizon to get 5g bcuz vzw 5g bands are disabled in tmb variant..
its really the carriers to be honest..
and I say LOL all the time even in normal convo so not actually laughing sometimes, just say it out of habit
elliwigy said:
actually other devices are crippled in some cased disabled entirely.. for example u cant get a tmb oneplus 9 pro 5g and use it on verizon to get 5g bcuz vzw 5g bands are disabled in tmb variant..
its really the carriers to be honest..
and I say LOL all the time even in normal convo so not actually laughing sometimes, just say it out of habit
Click to expand...
Click to collapse
I have phones such as Z Flip3 5G and other models that do not change CSC like older models when following the flash procedure starting with U1, but the phones never prompt a restart. I have noticed it seems to be with TMB or VZW units. Any suggestion on how to actually get the CSC to change properly or is this something they are doing with new phones to avoid being able to use them fully on other carriers?
yygemmi770 said:
I have phones such as Z Flip3 5G and other models that do not change CSC like older models when following the flash procedure starting with U1, but the phones never prompt a restart. I have noticed it seems to be with TMB or VZW units. Any suggestion on how to actually get the CSC to change properly or is this something they are doing with new phones to avoid being able to use them fully on other carriers?
Click to expand...
Click to collapse
SamKey.org
Go to the page, download theirs Samkey app, buy few credits on Ebay and you can change the CSC as you wish in a minute, the phone will reboot without loosing your data, it's the easiest way as far as I know
Hi, I have yhe following issue and I need your thoughts please.
I have a Telus plan, canadian with US roaming option.
I am traveling in US alot. I have a Note 20 Ultra U1 from Samsung USA. When in US I can only register on Tmobile and I can get 5G icon too. Won't let me on ATT or Verizon.
With same sim card in Note20 Ultra "W" variant, canadian one, it wil register on all 3 major networks in US. No issues with the sim, I guess.
Also in Canada won't get 5G ever.
My provider said nothing to do with them, Samsung told me the same.
I reseted all network setings my APN is ok. VOLTE on. Only getting acces to Tmobile.
Any ideea how I can fix this ? Is it related to CSC ? Mine is XAA.
mindseye0803 said:
Update:
I was able to change CSC(ATT/ATT/TMB) to TMB/TMB/TMB but it was long and winded way. Just flashing firmware was not enough , need Tmobile sim to install carrier service and change CSC.
I followed the steps below:-
1) Did backup of my device using Smart Switch and removed my ATT sim.
2) Flashed latest T-Mobile firmware( N986USQU2DUC8 ) using instructions from post - https://forum.xda-developers.com/t/ota-and-non-ota-firmware-for-n986u-and-n986u1.4143833/ . Also, downloaded the ODIN (patched version) and T-Mobile firmware from links in the post. Flashed HOME_CSC too.
3) After rebooting phone with new firmware , the boot up screen was still ATT and CSC was still ATT/ATT/TMB.
4)Shut down phone and inserted Tmobile SIM i had lying around.
5) On reboot, i was asked to install Tmobile carrier services and on restart , Tmobile logo came on boot up with CSC changed to TMB/TMB/TMB.
6) Now, i have esim enabled and SIM manager showing up too.
Click to expand...
Click to collapse
So I have a Verizon phone and I switched to t-mobile. If I use this method to switch my csc would that lock my phone or would it stay unlocked?
Stevieboy02008 said:
So I have a Verizon phone and I switched to t-mobile. If I use this method to switch my csc would that lock my phone or would it stay unlocked?
Click to expand...
Click to collapse
Unlocked. Phone once unlocked will not lock to any carrier.
dadmi said:
Unlocked. Phone once unlocked will not lock to any carrier.
Click to expand...
Click to collapse
Thank you
Hello, which firmware has Samsung Smart call enabled. I have N986U1 and it is disabled. I don't want to try every firmware to know does it work or not? Please USA only.
Nettwerk said:
Hello, which firmware has Samsung Smart call enabled. I have N986U1 and it is disabled. I don't want to try every firmware to know does it work or not? Please USA only.
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Click to collapse
U1 (XAA) device has it. This is my 986U ATT converted to a U1 XAA device.
So looks like it doesn't work with non-USA or different SIM card.
Nettwerk said:
So looks like it doesn't work with non-USA or different SIM card.
Click to expand...
Click to collapse
Unfortunately it's the CSC code that determines what features are available.
I did a CSC change on mine back when dialer code/IMEI still worked.
My phone was a stock 986U ATT device. I changed CSC to XAA and loaded U1 firmware.
My phone didn't retain the XAA CSC, after a 3rd reboot, but all the stock features remained.
Call and text on other devices works (normally blocked by AT&T), and Smart Call works as well.
Still can't get eSIM working, but that is only available for T-Mobile CSC.
rjohnstone said:
Unfortunately it's the CSC code that determines what features are available.
I did a CSC change on mine back when dialer code/IMEI still worked.
My phone was a stock 986U ATT device. I changed CSC to XAA and loaded U1 firmware.
My phone didn't retain the XAA CSC, after a 3rd reboot, but all the stock features remained.
Call and text on other devices works (normally blocked by AT&T), and Smart Call works as well.
Still can't get eSIM working, but that is only available for T-Mobile CSC.
Click to expand...
Click to collapse
I have converted from ATT to XAA. About phone it shows XAA/XAA/ATT and updates comes XAA. Or I haven't changed CSC?
Nettwerk said:
I have converted from ATT to XAA. About phone it shows XAA/XAA/ATT and updates comes XAA. Or I haven't changed CSC?
Click to expand...
Click to collapse
It's changed... All AT&T U devices will retain ATT in the 3rd set (???/???/ATT) as that is the original sales code for the device.
Having XAA/XAA/ATT with U1 firmware should let you have access to some XAA features.
Hello! i flashed with full wipe the SM-S908U DSH unknown firmware over my ATT branded S22 Ultra, thinking that it was the unbranded version. I still have all the ATT branding everywhere and also the ATT software update option in settings.
My question is: will i still be able to get OTA updates with this firmware?
Unbranded firmware is U1 firmware. DSH is Dish network/Boost Mobile
hyelton said:
Unbranded firmware is U1 firmware. DSH is Dish network/Boost Mobile
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Click to collapse
The weird thing is that even though I flash dtbe full firmware, when I booted up, I still had the ATT customizations, but in settings it shows the firmware is updated to the DSH that I flashed? Very weird.
The reason is that DSH firmware is still U firmware with a CSC that adapts the firmware to the SIM installed, therefore it reverted back to AT&T. As previously stated, you need U1 firmware, unlocked defaults to XAA in the US.
So what will happen if I dirty flash with the Home CSC the new DSH U over my SM-S908U1 that has been already flashed from U1 to carrier U Xfinity Mobile hard sim and a T-Mobile eSim ?
Will I still keep my same Xfinity Mobile T-Mobile carrier data ?