Develop Bugs

S9 Bootloader, CSC, VoLTE

hi
i used to have VoLTE on my unlocked samsung galaxy S9 (SM-G960FD)
i was on stock rom (G960FXXU1ARB3) when i had both VoLTE & VoWiFi , i had to reset my phone for some reason..... i said why not update and restart ? so i updated to G960FXXU2BRGA and i lost both VoLTE & VoWiFi
i tried downgrading to ARB3 but had no luck since the bootloader was updated.... so its not an option.
can anyone help me to get VoLTE back ? i really need it :crying: and i dont want to lose the warranty

hoomantanha said:
hi
i used to have VoLTE on my unlocked samsung galaxy S9 (SM-G960FD)
i was on stock rom (G960FXXU1ARB3) when i had both VoLTE & VoWiFi , i had to reset my phone for some reason..... i said why not update and restart ? so i updated to G960FXXU2BRGA and i lost both VoLTE & VoWiFi
i tried downgrading to ARB3 but had no luck since the bootloader was updated.... so its not an option.
can anyone help me to get VoLTE back ? i really need it :crying: and i dont want to lose the warranty
Click to expand...
Click to collapse
Hi, you may download an app ''QuickShortcutMaker" on Playstore. After that open the app and search for "lte call". You may find Enhanced LTE Services under Mobile Networks. Select it and select try, now you may turn VOLTE on. Sorry for my broken english.

zeanong said:
Hi, you may download an app ''QuickShortcutMaker" on Playstore. After that open the app and search for "lte call". You may find Enhanced LTE Services under Mobile Networks. Select it and select try, now you may turn VOLTE on. Sorry for my broken english.
Click to expand...
Click to collapse
Thanks for the reply
Found lte advanced services
But its empty ?

hoomantanha said:
Thanks for the reply
Found lte advanced services
But its empty ?
Click to expand...
Click to collapse
So weird, maybe due to different country firmware. I got this.

hoomantanha said:
hi
i used to have VoLTE on my unlocked samsung galaxy S9 (SM-G960FD)
i was on stock rom (G960FXXU1ARB3) when i had both VoLTE & VoWiFi , i had to reset my phone for some reason..... i said why not update and restart ? so i updated to G960FXXU2BRGA and i lost both VoLTE & VoWiFi
i tried downgrading to ARB3 but had no luck since the bootloader was updated.... so its not an option.
can anyone help me to get VoLTE back ? i really need it :crying: and i dont want to lose the warranty
Click to expand...
Click to collapse
May I know your Original Country code(CSC). And, what is your currently active OMC(CSC)? You might use Phoneinfo app for checking the currently active CSC.

Amijaz said:
May I know your Original Country code(CSC). And, what is your currently active OMC(CSC)? You might use Phoneinfo app for checking the currently active CSC.
Click to expand...
Click to collapse
G960FXXU1ARB3
This was originally on the phone when i unboxed it....
But after that, whatever firmware i had installed.... didnt have VoLTE
Now that the bootloader is uodated... i cant even downgrade to that....
I live in Iran... i have tried every firmware on sammobile.com for iran
No luck

zeanong said:
So weird, maybe due to different country firmware. I got this.
Click to expand...
Click to collapse
No, its the same country ( Iran )

hoomantanha said:
G960FXXU1ARB3
This was originally on the phone when i unboxed it....
But after that, whatever firmware i had installed.... didnt have VoLTE
Now that the bootloader is uodated... i cant even downgrade to that....
I live in Iran... i have tried every firmware on sammobile.com for iran
No luck
Click to expand...
Click to collapse
Firmware contains multiple CSC. And, if you flash the firmware via odin sometimes the phone boots with Random CSC. Hence, I strongly feel the device applied a default CSC other than Iran(THR).
Once more please confirm it using Phone Info app, you can find it on Play Store. Or else, check whether the good-old secret code *#272*imeino.1# works or not.
If nothing helps, go for a clean flash of the latest Iranian firmware by putting CSC(not Home-CSC) firmware file in CSC tab on Odin.

Amijaz said:
Firmware contains multiple CSC. And, if you flash the firmware via odin sometimes the phone boots with Random CSC. Hence, I strongly feel the device applied a default CSC other than Iran(THR).
Once more please confirm it using Phone Info app, you can find it on Play Store. Or else, check whether the good-old secret code *#272*imeino.1# works or not.
Click to expand...
Click to collapse
Active CSC code is THR

Amijaz said:
Firmware contains multiple CSC. And, if you flash the firmware via odin sometimes the phone boots with Random CSC. Hence, I strongly feel the device applied a default CSC other than Iran(THR).
Once more please confirm it using Phone Info app, you can find it on Play Store. Or else, check whether the good-old secret code *#272*imeino.1# works or not.
If nothing helps, go for a clean flash of the latest Iranian firmware by putting CSC(not Home-CSC) firmware file in CSC tab on Odin.
Click to expand...
Click to collapse
putting CSC(not Home-CSC)
im gonna try this.....
this might be the issue....

hoomantanha said:
putting CSC(not Home-CSC)
im gonna try this.....
this might be the issue....
Click to expand...
Click to collapse
no....
didnt work :crying:

CSC Change is still possible?

Hey Guys,
Just wanted to check whether any working methods are around to change the CSC of a Note 10+
Couldn't find any guides apart from the ones which are in Note 9 Sections.
Any support on this is much appreciated!

JazonX said:
Hey Guys,
Just wanted to check whether any working methods are around to change the CSC of a Note 10+
Couldn't find any guides apart from the ones which are in Note 9 Sections.
Any support on this is much appreciated!
Click to expand...
Click to collapse
Im also looking for a solution for this. SamKey's paid service is apparently supporting this but im unsure of the method their software uses and its a paid service. Users in Australia (like me) are having issues with RCS services through Telstra (TEL) because the Open Variant bought direct from Samsung not having the correct CSC. Some users have reported changing the CSC through SamKey successfully.
I have tried flashing with Telstra firmware but no luck.

maeneak said:
Im also looking for a solution for this. SamKey's paid service is apparently supporting this but im unsure of the method their software uses and its a paid service. Users in Australia (like me) are having issues with RCS services through Telstra (TEL) because the Open Variant bought direct from Samsung not having the correct CSC. Some users have reported changing the CSC through SamKey successfully.
I have tried flashing with Telstra firmware but no luck.
Click to expand...
Click to collapse
Paid Service?
Damn... We are also headed towards a Huawei Future now?

JazonX said:
Hey Guys,
Just wanted to check whether any working methods are around to change the CSC of a Note 10+
Couldn't find any guides apart from the ones which are in Note 9 Sections.
Any support on this is much appreciated!
Click to expand...
Click to collapse
Yes I have changed my csc on my note 10+ unlocked by *#272*imei#

Learning0876 said:
Yes I have changed my csc on my note 10+ unlocked by *#272*imei#
Click to expand...
Click to collapse
i do this didn't work which rom you are

maeneak said:
Some users have reported changing the CSC through SamKey successfully.
Click to expand...
Click to collapse
Yes, the only one work for me. 976B

maeneak said:
Im also looking for a solution for this. SamKey's paid service is apparently supporting this but im unsure of the method their software uses and its a paid service. Users in Australia (like me) are having issues with RCS services through Telstra (TEL) because the Open Variant bought direct from Samsung not having the correct CSC. Some users have reported changing the CSC through SamKey successfully.
I have tried flashing with Telstra firmware but no luck.
Click to expand...
Click to collapse
I initially did *#272*IMEI# and was able to switch between CSC. When I switched to XAA, I was stuck and could not able to use the *#272*IMEI# anymore.. So I had XAA/XAA/ATT.. I saw many were stuck.
Found a solution that worked for me is as follows. Try at your own risk.
Downloaded the tool from
https://www.mysterious-dev.com/2020/05/changecsc-all-samsung-free-tool-android.html
and downloaded the ChangeCSC Software tool.. . watched the video couple of times.. The process lets you install custom THEME.. I was getting "Update" "Delete" and "Buy" ..
What did was
install another random theme
then went back to the program and clicked change CSC again
this time when I choose the custom theme pack, I saw the "Try now".. after that I followed the instruction to about phone->legal and clicked on CHANGE Carrier Android 10 and VOILA!!! I got that CSC change page.. I saw XAA was selected and I changed to TMB... after that "Sales& Network Code Change" and clicked ok.. .The phone restarted and saw the T-Mobile logo!!!!
I even tried the *#272*IMEI# and this time it worked and showed me the CSC screen!!!
Hope this helps anyone who is stuck...My phone now says TMB/TMB/ATT!!!

visualpro said:
I initially did *#272*IMEI# and was able to switch between CSC. When I switched to XAA, I was stuck and could not able to use the *#272*IMEI# anymore.. So I had XAA/XAA/ATT.. I saw many were stuck.
Found a solution that worked for me is as follows. Try at your own risk.
Downloaded the tool from
https://www.mysterious-dev.com/2020/05/changecsc-all-samsung-free-tool-android.html
and downloaded the ChangeCSC Software tool.. . watched the video couple of times.. The process lets you install custom THEME.. I was getting "Update" "Delete" and "Buy" ..
What did was
install another random theme
then went back to the program and clicked change CSC again
this time when I choose the custom theme pack, I saw the "Try now".. after that I followed the instruction to about phone->legal and clicked on CHANGE Carrier Android 10 and VOILA!!! I got that CSC change page.. I saw XAA was selected and I changed to TMB... after that "Sales& Network Code Change" and clicked ok.. .The phone restarted and saw the T-Mobile logo!!!!
I even tried the *#272*IMEI# and this time it worked and showed me the CSC screen!!!
Hope this helps anyone who is stuck...My phone now says TMB/TMB/ATT!!!
Click to expand...
Click to collapse
Did this method wipe your data and factory reset your phone?

alireza_simkesh said:
Did this method wipe your data and factory reset your phone?
Click to expand...
Click to collapse
Hello,
Prior to doing the process. I used smartswitch and backed up my phone completely.. I also did factory reset the phone.. *** Since I was going to use a new method/tool, I was not sure so wanted to make sure it does not interfere with any existing account/app on the phone. Once I was able to get to the CSC screen and changed to TMB, I went back again to make sure do a factory wipe and start complete fresh out. Hope this helps. Good luck!

visualpro said:
Hello,
Prior to doing the process. I used smartswitch and backed up my phone completely.. I also did factory reset the phone.. *** Since I was going to use a new method/tool, I was not sure so wanted to make sure it does not interfere with any existing account/app on the phone. Once I was able to get to the CSC screen and changed to TMB, I went back again to make sure do a factory wipe and start complete fresh out. Hope this helps. Good luck!
Click to expand...
Click to collapse
Thanks, but I am wondering if the tool wipes out the data on the phone?
The Mysterious Dev tool that you mentioned, when the tool was changing the CSC, did the tool factory reset your phone and wipe it?

JazonX said:
Hey Guys,
Just wanted to check whether any working methods are around to change the CSC of a Note 10+
Couldn't find any guides apart from the ones which are in Note 9 Sections.
Any support on this is much appreciated!
Click to expand...
Click to collapse
alireza_simkesh said:
Thanks, but I am wondering if the tool wipes out the data on the phone?
The Mysterious Dev tool that you mentioned, when the tool was changing the CSC, did the tool factory reset your phone and wipe it?
Click to expand...
Click to collapse
hmm.. don't recall if it wiped.. I already had T-Mobile sim inside.. so when I saw the CSC selection page and as soon I choose TMB it restarted and came with T-Mobile splash Page, at that point I know it worked, so before even finishing up the boot process, I rebooted in recovery and did the factory reset

alireza_simkesh said:
Thanks, but I am wondering if the tool wipes out the data on the phone?
The Mysterious Dev tool that you mentioned, when the tool was changing the CSC, did the tool factory reset your phone and wipe it?
Click to expand...
Click to collapse
I had to do the CSC changing today and it simply rebooted and displayed the new CSC logo. It was with AT&T and when I change it to TMB. I get the T-Mobile boot logo.. I was able to get back in to the device without loosing any data.. The CSC showed TMB/TMB/TMB.. But I noticed the ringer/notifications sound still remained the AT&T settings. So to answer your initial question, my phone didn't get wiped out when switching the CSC.
Thx

visualpro said:
I had to do the CSC changing today and it simply rebooted and displayed the new CSC logo. It was with AT&T and when I change it to TMB. I get the T-Mobile boot logo.. I was able to get back in to the device without loosing any data.. The CSC showed TMB/TMB/TMB.. But I noticed the ringer/notifications sound still remained the AT&T settings. So to answer your initial question, my phone didn't get wiped out when switching the CSC.
Thx
Click to expand...
Click to collapse
Thanks.
After changing your CSC to TMB, are you getting TMB updates (OTA) or ATT updates?

alireza_simkesh said:
Thanks.
After changing your CSC to TMB, are you getting TMB updates (OTA) or ATT updates?
Click to expand...
Click to collapse
After switching to TMB.. I have also wiped out and installed T-Mobile firmware via ODIN.. Getting all TMB OTA updates.

Learning0876 said:
Yes I have changed my csc on my note 10+ unlocked by *#272*imei#
Click to expand...
Click to collapse
Thank you very much. I was just able to unlock my N976U from tmobile to unlock model. I am also getting LTE finally

JazonX said:
Hey Guys,
Just wanted to check whether any working methods are around to change the CSC of a Note 10+
Couldn't find any guides apart from the ones which are in Note 9 Sections.
Any support on this is much appreciated!
Click to expand...
Click to collapse
I have found *some* Samsung models can still change CSC via firmware flash in Odin by following these pre requisites...
- disable find my phone
- sign out of Google and samsung accounts
- developer mode .... enable oem unlock
- flash a single CSC stock firmware in odin (do not use home-csc)
- phone will be completely wjped but after first boot and running setup, CSC will be change to match new firmware

Have any one tried

dezborders said:
I have found *some* Samsung models can still change CSC via firmware flash in Odin by following these pre requisites...
- disable find my phone
- sign out of Google and samsung accounts
- developer mode .... enable oem unlock
- flash a single CSC stock firmware in odin (do not use home-csc)
- phone will be completely wjped but after first boot and running setup, CSC will be change to match new firmware
Click to expand...
Click to collapse
CSC Change:
https://forum.xda-developers.com/galaxy-s20/how-to/free-csc-change-apk-s20-t4116015
SIMPLY DOWNLOAD GOOGLE PHONE APP , DIALL THIS CODE AND ALL CSC APEAR.
*#*#27262826#*#*
Back up first, Everything on the device will be deleted.
thanks @adeltamimy6

this worked for me changed to btu. but still not being offered one ui beta 3. any ideas do i need certain software on phone too phone is sm- n976b. If so what do i need

Samkey works and costs about $10 (Min 3 tokens and 1 token to change CSC) - done it several time on 3 of my Note10+ to change to Telstra CSC - VOLTE / WIFI Calling etc works afterward, It didnt Wipe either
checkout andtron.com

Question before purchase Note 10+

Samsung website have note 10+ $200 off and free buds. I want to purchase the unlocked model.
1. Is it simple as get the device then stick in tmobile sim? Or there is additional step to do.
2. I going to be travel to Asia within a month or so, i can use phone for sim from oversea correct?
3. Is unlocked model have wifi calling, volte?

I should get mine Tue or Wed, I'm on ATT, I plan on just trying my SIM card...I'll try to remember to report back later in the week..

Thank, I will wait for your answer. I heard from the other post that some feature won't work with tmobile? I don't plan to root or anything

OxyEthane said:
Samsung website have note 10+ $200 off and free buds. I want to purchase the unlocked model.
1. Is it simple as get the device then stick in tmobile sim? Or there is additional step to do.
2. I going to be travel to Asia within a month or so, i can use phone for sim from oversea correct?
3. Is unlocked model have wifi calling, volte?
Click to expand...
Click to collapse
1.) - Yes it is that simple and it does work. I had done it with the U1 firmware and had no issues. If you want to ensure full compatibility (and video calling) then you will wanna consider flashing the Tmobile carrier firmware. Flashing carrier firmware onto the phone will not have any impact on the network/sim unlock status (in case if your wondering).
2.) - You will have to ask the carrier your going to use in Asia if it will be supported. Since the unlocked model has no sim/carrier lock on it you can use it with any provider that supports the phone.
3.) - Yes and No, depending on the carrier. Tmobile has been the most compatible with BYOD devices so yes to most of that. AT&T on the other hand not so much so, as they only provision things like WiFi calling, VOLTE, etc. on phones they have sold. Some people have tried to find work arounds to this AT&T restriction, so YMMV.
In Tmobile's case if I remember correctly WiFi calling should work just fine and VOLTE will. You may need to setup the APN manually, or at least make sure it is set up properly. Another option (and one I did to get video calling to work) is flashing the the firmware from Tmobile for the SM-N975U to ensure full carrier compatibility.

What do you mean full compatibly video call, isnt video go with facebook messenger or depend on apps?
I don't have to root in order to flash, right?
Is there any current issues that I need to know?
Is it worth get 5g at all?
Is there any guide or video guide to flash tmobile carrier firmware to note 10 plus unlocked? Please answer asap so i can purchase phone soon

OxyEthane said:
What do you mean full compatibly video call, isnt video go with facebook messenger or depend on apps?
Click to expand...
Click to collapse
Hopefully this will clear up any misunderstanding..
My reply was referring to carrier features and nothing more.
When I says "full compatibility" I mean any specific customization or tweaks the carrier makes to the firmware they release for the network they run. These tweaks would not be fully (or mostly) present on the U1 firmware. For example U1 firmware may not get the best speed or signal strength as opposed to the carrier released U firmware.
When I say "video calling" I am talking about starting a video call from the dialer app (same one you use to dial a random number on the telephone). This would not be present on the U1 firmware.
OxyEthane said:
I don't have to root in order to flash, right?
Click to expand...
Click to collapse
No
OxyEthane said:
Is there any current issues that I need to know?
Click to expand...
Click to collapse
No.. but I would suggest that you do some google searches and read up on how to do this. This way you have an understanding on what you will need odin for and how to use it.
OxyEthane said:
Is it worth get 5g at all?
Click to expand...
Click to collapse
IMHO in the USA I wouldn't just yet.. Not unless you want the shiny shiny to show off to your friends. It's not widely available and once it is I would still wait for them to work out all the kinks before spending the extra money. The LTE speeds I get as it is are sufficient enough for what I do, but eventually I will end up getting 5G after it gets fully released and the carriers get it stabilized.
OxyEthane said:
Is there any guide or video guide to flash tmobile carrier firmware to note 10 plus unlocked? Please answer asap so i can purchase phone soon
Click to expand...
Click to collapse
Yes tutorials and videos are on the internet.
I would encourage you to put some effort into finding the answer. I will tell you that the steps to do this are the same for the S9+ and a person was just recently discussing flashing 975U firmware to the 975U1 firmware on this forum.

I wonder if this video good idea to follow
https://www.google.com/url?sa=t&sou...BMAJ6BAgHEAQ&usg=AOvVaw18C8vlQDueUAkGQjTDOMve

OxyEthane said:
I wonder if this video good idea to follow
https://www.google.com/url?sa=t&sou...BMAJ6BAgHEAQ&usg=AOvVaw18C8vlQDueUAkGQjTDOMve
Click to expand...
Click to collapse
It is pretty decent.. but here's a few more things you will want to do.
If you have a google account on the phone already be sure to factory data reset it to remove FRP lock.
If not already mentioned in the video use the CSC_*** file and not the home_csc file.
Flash the USERDATA file included with the tmobile firmware. You can easily see where to place the USERDATA file in tge odin flashing tool.
After you get done flashing the phone be sure to factory data reset it to ensure everything works (OTA, etc).

Flashing custom rom or rooting remove network lock?

would just want to know by any chance if flashing another rom pr rooting the device will remove the network lock of my carrier?
Thank you
I need a method to unlock the device, tried a lot of paid services already,most of them dont have an unlock code yet for my device and some sent me a wrong unlock code

stephenjason89 said:
would just want to know by any chance if flashing another rom pr rooting the device will remove the network lock of my carrier?
Thank you
I need a method to unlock the device, tried a lot of paid services already,most of them dont have an unlock code yet for my device and some sent me a wrong unlock code
Click to expand...
Click to collapse
As far as I'm aware NO it won't remove carrier lock, you'll just have to wait for that to become available......:good:

No it won't work

Thank you
any reliable unlocking companies?

stephenjason89 said:
Thank you
any reliable unlocking companies?
Click to expand...
Click to collapse
The most reliable unlocking company would be the carrier itself
Sent from my SM-G985F using Tapatalk

Hi
I made a stupid mistake with my G988B, its were not working well, so I decided install a stock rom, but downloaded and installed o last version of software from another country (G988BXXS2ATD5, XEF ) whit Security Level Patch of may 1, 20.
After installed new stock rom, my phone ask for Network Unlock Code.
When realized of my mistake, tried reinstall orignal version of firmware (G988BXXU1ATCT, PGU) but nothing work for me. I have tried to flash with Odin, but always, process stop in "flashing vbmeta.img."
I have read a lot tread trying figure out my problem like: https://forum.xda-developers.com/galaxy-s20/how-to/howto-root-s20-series-upgrade-firmware-t4079353/post82220417#post82220417
There is a way to come back original stock rom and then trying unlock network?
Could this process work in my case without damaging my phone?
Thanks.

Samkey can unlock phone with 1 or 2 credits

mikey_sk said:
Samkey can unlock phone with 1 or 2 credits
Click to expand...
Click to collapse
Thanks por your answer, but I did it.
It doesnt work.

Samkey is the only way to unlock a Samsung phone other than getting the network unlock code from the network or third party. You must know what you are doing. Google the process. If that doesn't work then there is an issue here that needs further investigation. Also ensure your active csc code is the one that was originally on the phone as well as stock rom. Sam key can be used to change csc as well.
Good luck

mikey_sk said:
Samkey is the only way to unlock a Samsung phone other than getting the network unlock code from the network or third party. You must know what you are doing. Google the process. If that doesn't work then there is an issue here that needs further investigation. Also ensure your active csc code is the one that was originally on the phone as well as stock rom. Sam key can be used to change csc as well.
Good luck
Click to expand...
Click to collapse
Thanks mikey_sk,
My problem is that both the csc code and the stock rom are not the original ones. Therefore I am looking for a guide to help me how to get back to the stock rom.
I have read that the problem is, the security patch that I installed as it is newer than the one I am trying to reinstall. I will keep trying.
I understand that so far there is no way to go back from binary 2 to binary 1.
Any help is appreciated.

Hzuniga said:
Thanks mikey_sk,
My problem is that both the csc code and the stock rom are not the original ones. Therefore I am looking for a guide to help me how to get back to the stock rom.
I have read that the problem is, the security patch that I installed as it is newer than the one I am trying to reinstall. I will keep trying.
I understand that so far there is no way to go back from binary 2 to binary 1.
Any help is appreciated.
Click to expand...
Click to collapse
this is y u shouldnt mess with stuff if u dont kno what ur doing or how to fix it

elliwigy said:
this is y u shouldnt mess with stuff if u dont kno what ur doing or how to fix it
Click to expand...
Click to collapse
Ok,
Thanks.
No more questions.

You can always use the sim slot 2, it is usually not locked.

I suggest you change the csc to a stock one using Sam key. Make sure you enable USB debugging in developer settings otherwise Sam key won't work. After that dowload the most recent stock rom for that device from sammobile and flash in ODIN but DO NOT use HOME_CSC so it can do a full wipe and rebuild the firmware. As an added measure as soon as installed go into recovery and do a full wipe. If network is still locked try unlocking it with samkey

stephenjason89 said:
would just want to know by any chance if flashing another rom pr rooting the device will remove the network lock of my carrier?
Thank you
I need a method to unlock the device, tried a lot of paid services already,most of them dont have an unlock code yet for my device and some sent me a wrong unlock code
Click to expand...
Click to collapse
Unfortunately for it, you mentioned only sim1 is blocked and you still can use sim2.
This is not network lock but rather imei blacklist.
The only way to fix this is to pay your telco bills from where you purchased the phone. If it's a used phone, I would get a refund. There is no roms you can use that can fix it as it's blacklisted from the telcos.
There is only 2 reasons it is locked.
1. You didn't pay your installment bills.
2. The phone is reported as stolen.
If you purchased a used phone, get a refund.

Question Z Fold 3 EUX issue

Hello,
"once again" these is an issue with the CSC.
This time the phone is buyed from UK but I want to use it in my country (Bulgaria)
I've made the mistake to make the initial setup without a SIM and now I am getting
EUX/-/EUX/EUX
Can someone explain to me these things:
1. What is the meaning of the second 'code' which in my case is "-" ?
2. Is there any way to force a change considering that I've tried everything listed online (turn wi-fi off, remove sim, add sim, add different sim from my country and so on) ?
3. The phone is only 1 day in my posetion, is it possible that the service provider trigger will happen and it just needs some time?
4. is samKEY my final option and is it working without any issues?
The only thing that I haven't tried yet is the Factory reset but I will.
Also, I am getting updates and not having any issues whatsoever except that I can't use Samsung Pay ( your device is not supported message ) so maybe I just don't have to bother too much?
Thanks in advance.
p.s the battery life is alful so far, 4h SOT

Even if I can't tell you, why there is an /-/ I'm shure, there's nothing to worry about it.
I have it in mine as well, as EUY/-/EUY/EUY version. Everything absolutely original, no modifications wathsoever.
I don't think, I have an EUY issue ...

infrasonic13 said:
Hello,
"once again" these is an issue with the CSC.
This time the phone is buyed from UK but I want to use it in my country (Bulgaria)
I've made the mistake to make the initial setup without a SIM and now I am getting
EUX/-/EUX/EUX
Can someone explain to me these things:
1. What is the meaning of the second 'code' which in my case is "-" ?
2. Is there any way to force a change considering that I've tried everything listed online (turn wi-fi off, remove sim, add sim, add different sim from my country and so on) ?
3. The phone is only 1 day in my posetion, is it possible that the service provider trigger will happen and it just needs some time?
4. is samKEY my final option and is it working without any issues?
The only thing that I haven't tried yet is the Factory reset but I will.
Also, I am getting updates and not having any issues whatsoever except that I can't use Samsung Pay ( your device is not supported message ) so maybe I just don't have to bother too much?
Thanks in advance.
p.s the battery life is alful so far, 4h SOT
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EUY/-/EUY/EUY these numbers indicate your region code. Samsung assigns different regions short abbreviations to the firmware. what you need to do is to go to https://samfirms.com/ and search for your phone model and choose the region that you currently live currently. then use odin and flash it

muriira said:
EUY/-/EUY/EUY these numbers indicate your region code. Samsung assigns different regions short abbreviations to the firmware. what you need to do is to go to https://samfirms.com/ and search for your phone model and choose the region that you currently live currently. then use odin and flash it
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and if you need help with flashing the software using Odin, check out this video
I made yesterday(21/12/2021)