yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S10 Guides, News, & Discussion] malaccio:
sorry just a recap which are the CSC which allows call recording and Samsung Pay? INS only or also THL?

someone can give an updated list?

thanks
[Samsung Galaxy S10 Guides, News, & Discussion] NIKOSXRI:
I put ILO Israel, I have recording oxygen level double click for camera , no Samsung pay
[Samsung Galaxy S10 Guides, News, & Discussion] 2727alex2727:
Some guy posted this in another forum

You can switch CSC for free, install Google Dialer from the play store and enter this code using Google dialer

##27262826##

It worked for me to change carriers csc it even shows it in settings under service provider software information. I changed from Optus to Telstra (Australian carriers) it does factory reset your device but it works on my G988B
[Samsung Galaxy S10 Guides, News, & Discussion] Robis76:
Put thl, it works!
[Samsung Galaxy S10 Guides, News, & Discussion] Robis76:
Double reply
[Samsung Galaxy S10 Guides, News, & Discussion] TimucinPusat:
I use note 10 plus+. I updated it to android 11 today. Later on I decided to change CSC to THL in order to activate built in call recording which is necessary for call recorder app (skvalex) if your phone isn't rooted. So I saw that after apdating to 11 it's impossible to change CSC code through Google Phone app and certain codes which I think it was shared above. So I downgraded to android 10 again and changed CSC. Now I'm updating it to 11 again within setting update firmware option.

I wonder when I'll get official firmware updates? At the time Samsung offers update in Thailand (CSC country) or in my own country which I bought my phone in?

I think there won't be any negative effect of changing SCS code other than difference timing in taking updates.
[Samsung Galaxy S10 Guides, News, & Discussion] SpideRMaN-17:
I changed to THL since android 9 (note 10 plus not rooted) now I am on 11 and still on THL
[Samsung Galaxy S10 Guides, News, & Discussion] jpp604:
I see that there is firmware with Android 11 / One Ui 3.0 available for S10e. Does the Google Phone trick for CSC continue to work on Android 11?

JP
[Samsung Galaxy S10 Guides, News, & Discussion] DeckerSU:
Looks like after upgrade to Android 11 / One Ui 3.0 code *#*#27262826#*#* in Google Phone stopped work. Here i collected alternative methods for accessing PreConfig (CSC Change) Menu, may be one of them will be applicable in your case:

Samsung Dialer (standart system dialer):

*#243203855#

*#272*IMEI#

*#24320#

*#243203855#

*#272*IMEI#

*#272*62826#

*#170582*IMEI#

*#272837883#

*#487634751964#

Google Phone:

*#*#83052020100812173552301071192687#*#*

*#*#27262826#*#*

*#*#22623277326634424320#*#*

*#*#272837883#*#*

*#*#3472867046185743#*#*
[Samsung Galaxy S10 Guides, News, & Discussion] himu007:
Thanks @DeckerSU . I'm sure someone will find it useful.

Currently I have XXU code in my S21 Ultra 5G.
[Samsung Galaxy S10 Guides, News, & Discussion] mac4rfree:
Guys, I am pretty new to Samsung OS n ODIN.. Always a AOSP guy.

So, i have UK OS (one Ui 2.5) currently with indian Sim in India.

If i wanted to try TH CSC, Can i flash Indian Firmware with TH CSC.

Will it work? I need double tap to cam, Call record and samsung pay apps.

Thanks for sharing.
[Samsung Galaxy S10 Guides, News, & Discussion] jpp604:
Thank you.

I will keep the Android 10 for now, then.

JP
[Samsung Galaxy S10 Guides, News, & Discussion] Brownie2k:
No idea. I was going for BTU yet when i flashed it, it defaulted to XEU. I'm not sure how i'm supposed to get from XEU to BTU other than flashing EVR again and trying once more.

I flashed it with the SIM card it (EE UK). Originally it started up as French, then changed back to English after the phone restarted
[Samsung Galaxy S10 Guides, News, & Discussion] dezborders:
+1

S10+ started out on EVR, flashed BTU via Odin and ended up on XEU/XEU/XEU/EVR... (also started up in French after flashing then rebooted itself into English)

Even stranger I tried to Switch O2UK branded S9 today with latest BTU FW via OdIn now it’s on DBT/XEU/O2U

I guess it’s not only S10 models that can no longer change CSC via the wipe (non home) CSC + SIM card???
[Samsung Galaxy S10 Guides, News, & Discussion] Brownie2k:
I found it very odd, as i've read people on S10s who have changed from branded to BTU. I might SIM unlock my phone and try it with an o2 or giffgaff SIM, as apparently the CSC is decided on what SIM is present in the phone?

Not sure if that'll alter much though to be fair
[Samsung Galaxy S10 Guides, News, & Discussion] matheus_sc:
i think for now its a bad ideia buy from another country, maybe with root this will change.
[Samsung Galaxy S10 Guides, News, & Discussion] dezborders:
I had an o2uk sim in phone when I flashed BTU and it still selected DBT/XEU so I wouldn't expect much but do let us know

Personally I am not all that bothered as WiFi calling works, Knox has not tripped and (hopefully) I will still get OTA each month ...

... also can anyone confirm that other Samsung models (eg S9) are now doing same thing with latest March 2019 FW (Odin) flashes to BTU and XEU?
[Samsung Galaxy S10 Guides, News, & Discussion] Ryan1469:
Have you guys tried entering *#272*imei# on dialpad and then select the csc from the list that you want to change to? To see if this merhod works on s10 or not.
[Samsung Galaxy S10 Guides, News, & Discussion] AfiqAna:
Tried it, but nothing pops up.:(
[Samsung Galaxy S10 Guides, News, & Discussion] Ryan1469:
That sucks!
[Samsung Galaxy S10 Guides, News, & Discussion] helbert.machareth:
Estou com o mesmo problema. Já tentaram inserir um chip de operadora diferente?

I have the same problem. Ever try to insert a different carrier chip?
[Samsung Galaxy S10 Guides, News, & Discussion] falecomych:
Just for curiosity i did flash two firmwares THL and INS and both stuck to XEF

I think is the same "bug" that the firmware ZTO stucks to UPO
[Samsung Galaxy S10 Guides, News, & Discussion] AMoosa:
Each multi csc has a default. For the S10, the default with a UK sim installed is BTU. For the S10e, it's XEU.

I really want BTU on my S10e but can't get it to happen.
[Samsung Galaxy S10 Guides, News, & Discussion] fmvasco:
Same problem trying to install the ZTO version. I tried with SIM cards from two different carriers.

What happens if I install a firmware from a totally different region and then go back to the Brazilian one?
[Samsung Galaxy S10 Guides, News, & Discussion] orlandson:
Have you tried the new ZTO ASD4?
[Samsung Galaxy S10 Guides, News, & Discussion] rovral:
Hi, I am based in Italy ... and I'd like to enable the native call recorder on S10 +.

Do you think that if I'll flash, with Odin, a Thai firmware and I'll boot with a Thai SIM card, then replaced by an Italian SIM card,

will the CSC come back to ITV?
[Samsung Galaxy S10 Guides, News, & Discussion] AMoosa:
It's an interesting idea - please go ahead and try it and let us know the results. I was considering doing this with an Indian SIM card for the same reason.
[Samsung Galaxy S10 Guides, News, & Discussion] rovral:
I would try it willingly :) but I don't own the S10 yet. I am considering the purchase only if it will be able to record phone calls, necessary for my work.

If you wanted to try, even in India the native registration is enabled by default.
[Samsung Galaxy S10 Guides, News, & Discussion] Idkwtf:
Hell yeah. It was nightmare I had this issue so much so in my s10+ dat aftr all failed attempts 2 go bc 2 my original csc(originally INS/INS, INS/INS and became BTU/BTU, BTU/INS aftr applying *#272*imei & selecting BTU) using all old methods I had 2 visit service center in my country. That kept for a week and also failed to resolve. Struggled 4 two weeks & finally Samsung replaced my phone with a new 1. I swear neither I'm gonna install multi-csc not meant for my country nor gonna apply any csc changing codes.
[Samsung Galaxy S10 Guides, News, & Discussion] tak1217:
Is there possible to flash Korea firmware to my exyons 975F S10+?

Many thanks
[Samsung Galaxy S10 Guides, News, & Discussion] ru_dimka:
Guys, we can change a region between multi-region, but I can not change the single region to one of multi region. We still have no solution, right?
[Samsung Galaxy S10 Guides, News, & Discussion] malaccio:
no one works on N975F (note 10+) with

N975FXXS6EUA1

N975FOXM6ETLL

It came back update to android11 after Samsung Center replaced my screen, damn!!!!!!!

Anyone has already tried a downgrade from Android 11 to 10?
[Samsung Galaxy S10 Guides, News, & Discussion] mac4rfree:
Bro.. i got the latest INS firmware and flashed it via Odin but before that it was in UK CSC. I thought flashing it will change but it didnt.

So, i flashed the Android 10 Dec update from INS and then changed the CSC to INS.

So, Answer your question, it does work you can get the Android 10 from Sammobile and then flash it via odin.
[Samsung Galaxy S10 Guides, News, & Discussion] pluto78:
Hello, greetings to everyone, I just registered.

I would need help if possible. I have a Galaxy S10 G973F originally with CSC OMN / OMN, OMN / OMN. When android 11 came out, I sent the German firmware with Odin, convinced that I could send the Vodafone firmware and restore the original CSC when that firmware came out. I had not done similar operations on the S10, but I had done on my previous smartphones, the last one was an S8. Instead I ended up with BTU / BTU, BTU / OMN, as if I had sent the English firmware. Only later did I read about the difficulties encountered in carrying out these operations. When the Vodafone one came out, before it was picked up, I downloaded it with frija and sent it. But I ended up with CSC VD2 / VD2, VD2 / OMN, as if it were Vodafone Germany. Last ITV sent, but BTU / BTU, BTU / OMN returned. I read in this discussion that it would be possible to return to Android 10 to be able to rearrange everything. Do you think it is possible to return to the previous situation without voiding the warranty? Currently the phone is in "Official" status. Thanks for any help.
[Samsung Galaxy S10 Guides, News, & Discussion] NIKOSXRI:
It depends on the bootloader.Last update changed bootloader from 5 to 6 so not any more.You can check the number of bl in 6CUA8 it is 6, in 5CUA3 is 5
[Samsung Galaxy S10 Guides, News, & Discussion] mac4rfree:
You may be correct bro.. But I flashed my S10 with latest (android 11) OS intially when my O2U. But i wanted to change it to INS. so. i downloaded Android 10 (dec OS) and flashed it via ODIN and then changed my CSC to INS.

Once i have done it, i got a popup saying new update is present and currently am in Android 11 with Current CSC as INS.
[Samsung Galaxy S10 Guides, News, & Discussion] pluto78:
Mac4rfree says it did, if I understand correctly, the return from android 11 to android 10, so it would seem that it went back, albeit with a changed bootloader. Is that so, or not? What if you try to change and it fails, you can re-send the latest firmware?
[Samsung Galaxy S10 Guides, News, & Discussion] mac4rfree:
both the latest android 11 and android 10 flash i did it from Odin. My theory was even if android 10 flash failed (which i doubt, being its samsung own OS zip) we can still flash android 11 via ODIN.

It was worth a try i wanted to change CSC to INS
[Samsung Galaxy S10 Guides, News, & Discussion] pluto78:
Hello and thanks for the reply. I ask you if the state has always remained "Official", therefore with all the services working, or not.
[Samsung Galaxy S10 Guides, News, & Discussion] riggycat:
hey are the methods here still applicable? I'm having carrier troubles haha
[Samsung Galaxy S10 Guides, News, & Discussion] pluto78:
If I simply wanted to return to the original brand (Vodafone Italy), having my S10 in "Official" status but with BTU / BTU, BTU / OMN, I could use the "Emergency software recovery" function included in Smart Switch, or risk of block the cell phone? Has anyone already tried? Thank you
[Samsung Galaxy S10 Guides, News, & Discussion] mains75:
Does the ota update from Android 10 to 11 change the csc?

Does anyone know if android 11 THL csc firmware still has call recording?

THX
[Samsung Galaxy S10 Guides, News, & Discussion] jpp604:
I don't know, but i am not willing to try it.

What i understood from DeckerSU and Malaccio is that if you use a Android 11 firmware you cannot change the CSC at this moment, eventhough it is not clear if it changes what CSC you already have, hence my point above.

JP
[Samsung Galaxy S10 Guides, News, & Discussion] goTouch:
I live in Brazil and flashed BTU firmware. Don't know why, when I first boot with my sim card (Brazil), the CSC was SER (Russia). If I get any sim card from UK, flash BTU again with UK sim card, will I get BTU CSC from now on? Even if I change my sim card to Brazil after the procedure?
[Samsung Galaxy S10 Guides, News, & Discussion] goTouch:
Another question, now with Android 11, Samkey will be able to change csc?
[Samsung Galaxy S10 Guides, News, & Discussion] NIKOSXRI:
They said they updated. Haven't tried
[Samsung Galaxy S10 Guides, News, & Discussion] goTouch:
Windows Defend removed zip file downloaded from samkey.org, it says it is a trojan
[Samsung Galaxy S10 Guides, News, & Discussion] NIKOSXRI:
No don't be afraid, I have done it before, disable all antivirus and wall, put your phone without lock, and go, it's easy
[Samsung Galaxy S10 Guides, News, & Discussion] NIKOSXRI:
And BACKUP FIRST
[Samsung Galaxy S10 Guides, News, & Discussion] goTouch:
Do you know some place easy to buy credit for Samkey? I need just 1 credit.
[Samsung Galaxy S10 Guides, News, & Discussion] NIKOSXRI:
From ebay
[Samsung Galaxy S10 Guides, News, & Discussion] goTouch:
It worked. Bought credits for Samkey from ebay. Changed csc to BTU. Booting into download mode I can confirm it is ok. I even flashed OXM firmware again with odin just to see if BTU would remain active. And it works.

Thx for help.
[Samsung Galaxy S10 Guides, News, & Discussion] sanguine9x:
When you up to android 11 it can not work with *#*# anymore . We have to wait here to figure out solution from mod xda
[Samsung Galaxy S10 Guides, News, & Discussion] Ezito:
I've used SamKey with my S21 Ultra Exynos with lastest software (AUB9) and I could change my CSC to AUT.
[Samsung Galaxy S10 Guides, News, & Discussion] pluto78:
I don't know how Samkey works, but if he connected with an external server to operate the CSC variation, who would prevent him from stealing the information of his mobile phone and more? I have some doubts.
[Samsung Galaxy S10 Guides, News, & Discussion] sanguine9x:
Have you tried Samkey before? Can it work ? And what name of device you use test bro ?
[Samsung Galaxy S10 Guides, News, & Discussion] pluto78:
No, I haven't tried it and I don't think I try it because, as I wrote before, I fear for data security.
[Samsung Galaxy S10 Guides, News, & Discussion] sanguine9x:
In the last post, someone said Samkey can work normal right now - March 2021 but we have to buy credit from Ebay shop. Actually, i really wana see feedback result and after that i can confident to do it again 😝
[Samsung Galaxy S10 Guides, News, & Discussion] osssinator:
Guys, help me please.

| really need the call recording future and I am currently using it on Huawei device. My girlfriend gave me a present A415F.

As it is EU spec device. In this case can I change the CSC to THL? I already purchased 3 credits from Samkey.

I only need the call recording.

Thanks in advance,
[Samsung Galaxy S10 Guides, News, & Discussion] nib2:
Hello there everyone,

I've read a lot of the previous comments, but I still don't have clarity. The phone is Note 10 lite, csc is PLS, my aim is to unbrand the phone with unbranded csc from my region. I have previously used Samkey to that end with success on other Samsung phone. Now I've run Samkey on my Note 10 lite with android 11 and it went through the moves, and I even though it worked, it used up 1 credit too, but the csc remained unchanged.

So the question is if I downgrade to Android 10 with Odin now and use up another Samkey credit what are the odds that the process would work this time?
[Samsung Galaxy S10 Guides, News, & Discussion] ChoSmile:
Flash first with whole desired CSC with Odin 4 files, on CSC select HOME_CSC_.... then use SamKey to cahnge CSC.
[Samsung Galaxy S10 Guides, News, & Discussion] nib2:
Thank you so much. It seems that the CDC is successfully and permanently changed to the unbranded one.

I downgraded to Android 10 using Odin and unbranded fw with the same bootloader version and your advice above. What surprised me was that afterwards there was some kind of error and the phone forced me to reset to factory settings, but that's not very important. Also this time Samkey wasn't cooperative at all. After choosing 'change cdc' it started and identified the phone as unbranded but got some kind of timeout just at the beginning with six times spelling out RETRY and afterwards it gave up. The good part is that this time it didn't consume any credit.

Then when I went into software update in the phone settings it gave me two updates one after the other. First it upgraded me to the oldest Android 11 firmware, but to my delight it remained unbranded. Then it didn't offer me the firmware update that became available in the meantime. Instead, when I went into settings>software update the second time I was offered the latest April 2021 update with OneUI 3.1. Also unbranded.

To sum up I went from CDC PLS/PLS,PLS/PLS to my desired XEO/XEO,XEO/PLS without Samkey, only using Odin. I'm not sure if the downgrade to Android 10 I performed was necessary part of the process or not, but the important thing for me is that the CDC change apparently is permanent and phone updates itself over the air without any problem.

Thank you for your advice. :)
[Samsung Galaxy S10 Guides, News, & Discussion] lentm:
I just tried flashing TMB U firmware on my U1.

I used HOME_CSC from TMB firmware to not lose the data, flashed successfully, but failed to boot, took me to the menu where I can Factory Data Reset.

So, I flashed U1 firmware again with HOME_CSC from U1 firmware, XAA, I was able to boot again then.

Now it says TMB/TMB/XAA on software info after reflashing U1 firmware. :\

Anyway to have the full TMB firmware without losing the data?
[Samsung Galaxy S10 Guides, News, & Discussion] Hank87:
I have s21 ultra international G998B-DS and I'm in the uk, if i change csc to Thailand which I believe is THL to enable call recording, would it affect the bands compatibility, carrier aggregation, volte or anything else?
[Samsung Galaxy S10 Guides, News, & Discussion] ChoSmile:
No. 5G, VoNR, 4G VoLTE, aggregation ... works fine on THL and XXV.

THL will stop Samsung Pay in the end of 2021.

Better XXV (Vietnam) if you use Samsung Pay and call recording.
[Samsung Galaxy S10 Guides, News, & Discussion] jpp604:
Answering myself: I have upgraded to Android 11 OneUI 3.1 and my CSC did not change and i stil have call recording.

JP
[Samsung Galaxy S10 Guides, News, & Discussion] aningro:
I changed CSC on my Samsung S20 5G using Samkey after installing multi firmware (wiht ODIN) with CSC ITV (Original CSC OMN) ..... everything should be ok because

Software version of the telephone operator SAOMC_SM-G981B_OXM_ITV ........ before it was OXM_OMN

and ITV / ITV, ITV / EUX / OMN before OMN / OMN, OMN / EUX / OMN

however, the codes listed above no longer work, when I was OMN if I typed * # 272 * 62826 # only the Vodafone CSC appeared now none of the codes shows the "Preconfig" you can help me. Thank you
[Samsung Galaxy S10 Guides, News, & Discussion] klobber12.2:
Just want to note that I just successfully switched the CSC of a Galaxy S8 Active (SM-G892U) from Sprint (SPR) to T-Mobile (TMB) with Chimera. Expensive, but functional. Also fairly impressed with the software, they can also perform FRP lock reset, carrier unlocking, and all sorts of other nifty hacks & treats.
[Samsung Galaxy S10 Guides, News, & Discussion] Phone2080:
Hello, help needed….

My Samsung s10 exynos phone is from Australia and was rooted when I bought it. I got it online. I used frija and odin to install latest stock firmware. All done and good but network is not registered. I live in Oman. Base firmware shown in mobile is BTU and Active firmware reads as TEL. I installed firmware with MID and INS CSC but both does not help. The CSC stills reads as TEL/ TEL, TEL/ TEL……

Did I do something wrong ? I want my phone back to stock.
[Samsung Galaxy S10 Guides, News, & Discussion] schwinn8:
What is the CSC you expect to see/use? In other words, what is your carrier's CSC?
[Samsung Galaxy S10 Guides, News, & Discussion] Phone2080:
How do I search that ? Carrier is Ooredoo whose sim I have in the phone during firmware update.
[Samsung Galaxy S10 Guides, News, & Discussion] Phone2080:
I used MID, XSG, INS. All pertaining to Middle East and India. Nothing worked. Still shows as attached image.
[Samsung Galaxy S10 Guides, News, & Discussion] schwinn8:
First off, I don't have experience with Exynos phones, which is what you have, so I will speak to what I know which is based on Snapdragon devices. That being said, I think this would work, but I can't guarantee it since your phone has different hardware... so you may want to review with people who know the Exynos better.

Anyway, according to https://docs.google.com/spreadsheet...5Zmmi9mLZH4wPFZZQBbWyS-rs/edit#gid=2050731693 there are a few options. You need to get one of those versions and install that. Alternatively, there may be a multi-CSC ROM that supports it as well (MultiCSC will auto-adapt to what SIM you have, in some cases). I don't know international versions well enough, so you may need to ask around. It looks like you're running OXM, which is a multi-CSC, but maybe it doesn't support the Oman/Ooredoo.

Without the correct original ROM, it may not change over. In addition, I have personally found that some ROMs simply don't change at all - here in the USA I have a phone with VZW that refuses to change to TFN, but fortunately TFN uses VZW frequencies anyway, so the phone works. In your case, you might find that one of the non-multi ones in the list above might work even if it doesn't change over in the reading. I would start with one of those ROMs (looks like there are 4 options).
[Samsung Galaxy S10 Guides, News, & Discussion] Nemonavicusrino:
i have a new s20 fe 5g . Tried with samkey multiple time, Samkey take credit but dont do much more.

i need calrecording, internetbanking, and eventualy samsung pay.

Loading ADB module.............OK

Starting ADB module...OK

Searching for SAMSUNG ADB device...OK

Checking device authorization...OK

Reading ADB device information...

ADB Serial Number : XXXXXXXXXXXXX

Model Name : SM-G781B

BL version : G781BXXU4CUH1

AP version : G781BXXU4CUH1

CP version : G781BXXU4CUH1,G781BXXU4CUH1

CSC version : G781BOXM4CUH1

Android version : 11

Algorithm : New 2021 SDK

Country : Romania

Sales Code : ORO

Serial Number : N/A

IMEI : XXXXXXXXXXXXXXXXXXXXXXXXXXXX

SIM State : ABSENT,ABSENT

Warranty VOID : 0

SIM operator : N/A

USB Settings : MTP,CONN_GADGET,ADB

Sending data to SERVER...OK

Waiting for SERVER response (May take few minutes)...OK

Change CSC in progress...OK

Operation successful.

SamKEY Team (2017)

even if it say csc changed , call recording not working. tried thl india italy but seem could not work It is posible to downgrade to android 10 Any solution. If you need further info please advise what you need.

Please help.
[Samsung Galaxy S10 Guides, News, & Discussion] schwinn8:
This forum section is for the S10 series phones, while yours appears to be an S20. You probably won't get too much help here, and may want to post on the S20 forums instead... they may be able to help better/faster.
[Samsung Galaxy S10 Guides, News, & Discussion] uhsarp:
I have an S21 Ultra from T-mobile. I flashed the XAA rom but it still shows TMK. Would my phone still have ATT 5g bands because I Flashed the XAA firmware? I heard that Samsung phones in the US have all carrier bands but depending upon the carrier, other bands are disabled.