yashsingh1/xdaforums huggingface dataset:
[Samsung Galaxy S10 Guides, News, & Discussion] referee77:
So my question is this...

I am in Canada, and I have a Galaxy S10+ and a Galaxy S10. Both currently have a CSC for Freedom Mobile (GLW).

I am switching to an AT&T plan, but will still be in Canada most of the time, with occassional trips to the USA.

So, my carrier will be AT&T, but since I will be in Canada, my phone will be on the Rogers cellular network.

Should I change my CSC to AT&T (ATT), or should I change my CSC to Rogers (RWC)?

I know how to change from GLW to RWC ... but when I use the *#272... method ... I do not get an option for ATT.

Or, should I go with a multi-CSC in Canada (XAC) or USA (XAA)?

Same question as above would apply here ... I can easily change to XAC, but I do not get an option to change to XAA.

Thank you in advance for any advice, tips, or information you can provide.
[Samsung Galaxy S10 Guides, News, & Discussion] abc_sk2002:
The CSC can be updated to any desired firmware and CSC. To do this flashing has to be done by unlocking 'OEM_unlocking' under 'Developer mode' and downloading the required Firmware with desired CSC through Samfirm by ODIN. The KNOX is remaining valid.

Also, the SIM of the desired CSC needs to be inserted in the primary slot and reset has to be done.
[Samsung Galaxy S10 Guides, News, & Discussion] mcgilacoty:
To be more specific... Do you only flash the CSC file or do you have to flash AP, BL, CP, too? Lots of options here.

My question is, can I flash a CSC file from a different variant (i.e. sm-n976v csc file on an sm-n976n variant) without flashing the AP, BL, and CP files?

---------- Post added at 06:03 PM ---------- Previous post was at 05:56 PM ----------

In my case, the answer is no. I tried flashing the n976v csc file to my n976n variant and it wouldn't work. I've also tried flashing the AP, BL, CP, and CSC to no avail. I can't find a way to change my CSC so if anyone has a suggestion, I'm all ears!
[Samsung Galaxy S10 Guides, News, & Discussion] s3mtex:
Can someone confirm this working with S10 (G973F)?

And if is working with OXM CSC and desired SIM or only with specific CSC?

As i said I've tried with OXM firmware and SIM and not worked. Still, i don't think I've done 'OEM_unlocking' before.
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
it Will work on s10e, s10+ but not on S10... sadly. on g973f you can change csc only with samkey method. atleast for now.
[Samsung Galaxy S10 Guides, News, & Discussion] s3mtex:
I wish I could have the patience to wait your fast reply. I've already tried, and confirm that is not working.

I would go for samkey if i would know that is 100% sure. No warranty void (not knox) and clean phone after (regarding security)
[Samsung Galaxy S10 Guides, News, & Discussion] SpideRMaN-17:
Use samkey, with 2 credits you change csc on oxm firmware in 1 minute without loosing knox, data and no need to oem unlock or anything
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
yep i can confirm. samkey is 100% working and secure. you dont lose data warranty or anything. after using samkey you can flash with kdin with csc file and it wont get back to btu again. so its worth it. i went from Polish carrier csc (pls) to oxm firmware but got stuck on btu csc and couldnt do anything about it. after using samkey i got Polish unlocked csc (xeo). its permanent, Ota is working so i could join beta on official way. in addition, if your phone is network locked by your carrier just as mine was, samkey besides changing your csc will unlock your phone. i tested it with few Polish carrier sims after use and it works. all sims work without problem. it should be free just like all other phones but... if you have no other way its still worth these few dollars lol
[Samsung Galaxy S10 Guides, News, & Discussion] s3mtex:
I'm not network locked. Still i was on Orange Romania (ORO) and I've passed to Romania not branded (OXM) but is actually BTU. I want to pass to THL for call recoding function.

After your CSC change the OTA updates are acording to your firmware or to your CSC? I mean after i will change the CSC my OTA updates will be when they appear for Romania unbranded or for THL (Thailand) CSC?

P.S. Thank you for your reply!
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
you will get ota by your active csc. so if you change to thl you will get THL ota
[Samsung Galaxy S10 Guides, News, & Discussion] muazsyamil:
hello (again?) everyone.

I opened this thread again and I am suuuper confused. my variant is SM-G9730 (hong kong). in my phone info, my csc is now TGY/TGY,TGY/TGY. I am living in Malaysia so this caused me to not be able to use SamsungPay.

what can I do with my csc so that I can use SamsungPay here? do I need to change my csc using samkey? is there any other way than using samkey?

thank you so much!
[Samsung Galaxy S10 Guides, News, & Discussion] waqqas.khokhar:
Are you trying to use debit cards or credit cards or both? Credit cards work fine for me, but debit cards don't.
[Samsung Galaxy S10 Guides, News, & Discussion] muazsyamil:
I'm trying to use my debit card. but I think that shouldn't be a problem so long as the version of SamsungPay supports it. or am I wrong?
[Samsung Galaxy S10 Guides, News, & Discussion] waqqas.khokhar:
I think debit cards are only supported if you have the correct version (CSC) that corresponds to the issuing bank. That's what my experience is telling me. And unfortunately, the 9750 only comes in 2 CSCs, Hong Kong and Taiwan.
[Samsung Galaxy S10 Guides, News, & Discussion] alvaroja18:
_______________________________________________________________________________________________

Hi, how I can buy a credits for use Samkey ? works on samgung Note 10 ?
[Samsung Galaxy S10 Guides, News, & Discussion] Mr.Januzi:
How did you change to AUT/AUT/THL ? simply by switching sim card ir flashed via odin ?

I have SWC/SWC/SWC which is swisscom in switzerland and would like to switch ti DBT/DBT/SWC for quicker updates
[Samsung Galaxy S10 Guides, News, & Discussion] sivuha0101:
Specify what model you have

If s10e (G970f) or s10+ (G975f) you can just flash it with OXM and use simcard to change csc

if it's S10 (G973f) the only way is SamKey. Sometimes the s10 come with generick csc like DBT, ROM or ITV, then you can use simcard, but if it has BTU or any network branded you can't. As BTU always stays BTU, and after flashing OXM on the phone with network firmware, it will get BTU, and it will stay.
[Samsung Galaxy S10 Guides, News, & Discussion] algnerd:
Few days ago, I was on TKD/TKD,TKD,XSG put a new sim card in the phone from KSA and it became TKD/KSA,TKD/XSG

One I get back home I'll try and flash AUT with KSA sim card in the phone and see how it goes

G973F running last build
[Samsung Galaxy S10 Guides, News, & Discussion] sivuha0101:
It looks like originaly you had OXM (XSG is part of OXM, so at this point you could insert any simcard and it would get customized) firmware on your phone, and then u flashed it with TKD, the two middle csc are from inserted sim cards, so they will always change. I am afraid that if you flash AUT now you will get stuck with BTU
[Samsung Galaxy S10 Guides, News, & Discussion] DJ_Jedi:
I had a branded S10 and with SamKey for something like 6$ i bought 3 credits and changed to my country unbranded (ITV) and it worked like a charm, super easy.
[Samsung Galaxy S10 Guides, News, & Discussion] algnerd:
I use AUT to monthly update my phone, since TKD doesn't push OTA updates and yet I still have TKD every time.
[Samsung Galaxy S10 Guides, News, & Discussion] acamiki123:
Samkey error

Hello, please help. I have problem with samkey, i wanted to change csc on my s10 from BTU to DBT, i bought credits, but i get at ril file not found error. Please help!!
[Samsung Galaxy S10 Guides, News, & Discussion] mains75:
So guys I have this situation:

I REALLY need system call recorder.

I think I have on my firmware the THL csc available..

- So which is the faster way to change csc without loosing data?

- Have I to expect any reception issues after that?

- what do I get when I pay anyone on ebay for samkey credit? Just a username and pass?

Thx

EDIT: I made Samkey method: Now I finally have system call recorder! (I can record also bluetooth conversations!). No data lost. Everything is ok!!
[Samsung Galaxy S10 Guides, News, & Discussion] Hoffmanns:
How much Samkey credits I need for CSC change?

For Samsung S10 G973F...

I would like to switch my phone from BTU to DBT because updates... :fingers-crossed::good:

Thank you for answer

Have a nice day for all :)
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
2 credits for csc change
[Samsung Galaxy S10 Guides, News, & Discussion] minwoo_kang:
I'm using s10e Android 10 Stable version (20191201 Released-KOR)

Does samkey have plans to support Android 10?
[Samsung Galaxy S10 Guides, News, & Discussion] samighz:
Hi all

I have an unlocked S10 973W from canada with a BMC csc (Bell mobile).

I want to flash an unbranded firmware without the Bell operator bloatwares.

Is it possible to use XAC?

Any suggestions?
[Samsung Galaxy S10 Guides, News, & Discussion] samighz:
:D

converted CSC with *#272*IMEI on XAC multi CSC
[Samsung Galaxy S10 Guides, News, & Discussion] androidloveRs3104:
You mean *#272*IMEI# Right?
[Samsung Galaxy S10 Guides, News, & Discussion] samighz:
Yes of course

my keyboard auto replace!!!:eek:
[Samsung Galaxy S10 Guides, News, & Discussion] slikr:
hi guys I have a galaxy s10e G970F my region is OXM XTC unlocked. How do I change to different region like Germany or UK so I can get faster updates and I want to have Samsung pay also. BTW I dont want my data on the phone lost in the process. Thanks for the help.
[Samsung Galaxy S10 Guides, News, & Discussion] valiran:
Hello!

I have a Note 10+ with New Zealand csc VNZ (bought in France, on a french online seller....).

I tryied to flash OXM firmware, still VNZ.

SO i flashed FTM firmware, orange france csc, booted it up to the home screen, then flashed back oxm and now I finally have "XEF,XEF,XEF,VNZ".

The last VNZ won't be a problem for Samsung Pay or anything else?

It's like I have now a fully XEF phone?

Thanks

PS: I tryied Samkeys, but their app didn't recognize my user/pass ...
[Samsung Galaxy S10 Guides, News, & Discussion] billa:
The third group of letters ((xxx/xxx/ZZZ) just shows CSC the phone was originally programmed with in the factory.

As long as you have the first two groups changed, it should be fine. Worth mentioning that the third group can also be changed either via AT commands with combination firmware or direct write of the EFS while rooted.
[Samsung Galaxy S10 Guides, News, & Discussion] Mr.Januzi:
How to change the 3rd csc via AT commands ?

Can you give instructions?
[Samsung Galaxy S10 Guides, News, & Discussion] sivuha0101:
I would like to know as well.

I know that AT+PRECONFG changes csc in combination

but there is also AT + RFBYCODE = which I don't know what it does .
[Samsung Galaxy S10 Guides, News, & Discussion] speszial:
I finally changed CSC in my s10+ from Vodafone UK WITHOUT samkey

1. I did backup to my usb drive and removed both sim cards.

2. Downloaded latest android 9 using frija from Greece (in case if I would have to use samkey because it doesn't work with android 10 tell me if I'm wrong)

3. I flashed greece firmware which have multi csc. Make sure u use csc not home csc!

4. I let the phone to turn on. the welcome screen was in Greek and then I put sim cards back inside , phone asked me what kind of network provider I'm gonna use and restarted.

5. After restart I skipped all setting and checked csc it's XEU UK csc exactly what I wanted. I restored everything from my usb stick and after that downloaded android 10 update.
[Samsung Galaxy S10 Guides, News, & Discussion] sivuha0101:
This solution was already described. Also XEO is polish CSC not uk.
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
too bas this method doesnt work for s10..
[Samsung Galaxy S10 Guides, News, & Discussion] speszial:
I meant XEU not XEO sorry . I'm just saying it's working because many people said it's not.
[Samsung Galaxy S10 Guides, News, & Discussion] duich:
Only S10 Exynos (SM-G973F) does NOT work with this method. S10+ and S10E works

Gesendet von meinem SM-G973F mit Tapatalk
[Samsung Galaxy S10 Guides, News, & Discussion] djremy182:
Dont work with s10 exynos ans Android Q
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
for s10 you have to use samkey to change csc... there is no other method without root for now..
[Samsung Galaxy S10 Guides, News, & Discussion] djremy182:
I tried with samkey
[Samsung Galaxy S10 Guides, News, & Discussion] duich:
Android 10 (Android Q) not yet supported with samkey. Hopefully soon it will...

Gesendet von meinem SM-G973F mit Tapatalk
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
well you can flash android 9, change csc with samkey and then update to android 10. thats what i did and everything is ok
[Samsung Galaxy S10 Guides, News, & Discussion] Mr.Januzi:
Where did you read about this ?
[Samsung Galaxy S10 Guides, News, & Discussion] s3mtex:
After tried everything i got stuck at BTU. I downgraded to Android 9 and finaly i used Samkey. I had paied only 2 credits (1+1 ) from the seller mentioned in a post before "animeman65" from eBay and changed to THL. After reboot i had THL/THL/THL/ORO. The phone updated by OTA to android 10 after that I made a factory reset and the CSC remain unchanged.

In 5 days i didn't saw anything strange, all seems fine in battery life and daily use.
[Samsung Galaxy S10 Guides, News, & Discussion] JassyNL:
As I do not clear instructions on how to change an S10E's CSC, who can explain me what I have to do? I like to have a phone that shows PHN, but the one send to me won't be an original PHN. How can I change this so that it will show liken an orignal PHN? Only insert a SIM and off you go or do I need to change codes somewhere else to have a genuine PHN? For S10 I should use Samkey, but I am not sure about the S10E.
[Samsung Galaxy S10 Guides, News, & Discussion] s3mtex:
Update: Phone now has THL/ROM/ROM/ORO at CSC check since i have 2 Vodafone Romania in my phone. THL ROM functionality are still there.
[Samsung Galaxy S10 Guides, News, & Discussion] ausi:
Hi to ALL........very frustrated!

I need desperate HELP to get Call Recorder working on my S10 Plus SM-G975F, my phone model is UNLOCKED.

Right now my CSC is TEL/TEL/TEL (-I believe Telstar Australia).

I have tried installing the Thailand Firmware which I understand has Samsung in-built Call Recording but the CSC did NOT change.

From the forums I have read I understand that I would need to purchase a SAMKEY to convert my CSC, so I would appreciate answers to my following questions:

1.	Will the SAMKEY work on my model…ie…to change the CSC…..to get Call Recording

2.	Could you please give a Link to a proven SAMKEY to purchase for my model.

3.	Do I need a special SIM card (eg. Thailand) to do the procedure.

4.	What is the procedure I should use with the SAMKEY….please give the Link

5. Do I need first to first install the Thailand firmware prior to changing the CSC or first change the CSC and then install firmware?

6.	In the end in order to get FOTA does the Firmware need to be from the same CSC country or can i use any country's firmware for my model?

Thanks for your patients in advance.
[Samsung Galaxy S10 Guides, News, & Discussion] Ryan1469:
Pm me. It's easy as, i converted my Telstra S10 plus to INS for the call recording function.
[Samsung Galaxy S10 Guides, News, & Discussion] :
Sup, can you teach me? I want to do this for the UK android 10 firmware. And do you still get features like telstra 4g+?
[Samsung Galaxy S10 Guides, News, & Discussion] Ryan1469:
I am on Optus prepaid so don't get 4g+ but i think once i tried a Telstra sim card which was laying around and got 4g+ on my phone.
[Samsung Galaxy S10 Guides, News, & Discussion] ausi:
Hi

To change CSC i know that USB Debug has to be ON, but i also saw that someone wrote that "OEM Unlocking" has also to be ON,.........is this correct??
[Samsung Galaxy S10 Guides, News, & Discussion] dexterde:
Kindly help me change my csc too, am on not 10+
[Samsung Galaxy S10 Guides, News, & Discussion] s3mtex:
1. Yes check samkey for supported devices.

2. You download samkey from officiall site. You need to buy samkey credits. 2 credits is needed for CSC change. You have the ebay id seller that i used on my post before. You have to wait about 30 minutes until you will get Samkey user and password from him. After you log in in Samkey you will have the credits there.

3. NO. Any SIM will work. Still on your phone model is working to change with SIM only (like Thailand SIM) if you don't want to use Samkey. At least what others said.

4. Read the tutorial from first pages on this thread. One of our colleague did step by step. Also Samkey will guide you.

5. No. It will work any firmware with OXM if you don't have one already.

6. You will get OTA updates from the THL country.

Important! Samkey is not working on Android 10. You need to install a firmware from 9. After CSC changed you will have OTA Update to Android 10 from device.

Sorry I'm in the rush and in telephone is hard to put the links but take time to read here and you have all the answers.

Good luck!
[Samsung Galaxy S10 Guides, News, & Discussion] xXDisplemaXx:
Hi guys, I found out that now Samkey needs 6 credits. I have my S10(G973F) from Vodafone (OMN) updated to One UI 2.0 with Android 10. What do I have to do to downgrade to Android 9? I can just use Odin with the OXM firmware of the One UI 1.0 or I have to downgrade to One UI 1.0 OMN and then OXM? Also, do I have to use "home_csc" or "csc"? Sorry but it's a really long thread and there are mixed devices so I just want to be sure to know what I have to do. I'll be also glad if any of you can send a list of all the CSCs with benefits (like call recording) and disadvantages.

Thank you in advance
[Samsung Galaxy S10 Guides, News, & Discussion] SpideRMaN-17:
I used samkey to change from ita to tha and used 2 credits on android 9 (oxm)
[Samsung Galaxy S10 Guides, News, & Discussion] xXDisplemaXx:
In the site it says 6 credits for G973F, anyway were you on Android 10 and then rollbacked to Android 9?
[Samsung Galaxy S10 Guides, News, & Discussion] s3mtex:
Yes is correct. I rollback from 10 to 9 (OXM firmware, i believe that was Germany in my case), use Samkey to change to THL (only 2 credits) and after change the OTA Update pop up and upgraded to 10 again.

P.S. 6 credits is for unlocking or something else as i see. For CSC change is 2. In Samkey interface will say how many credits you are charged for CSC change before the process starts.
[Samsung Galaxy S10 Guides, News, & Discussion] xXDisplemaXx:
Thank you very much
[Samsung Galaxy S10 Guides, News, & Discussion] sivuha0101:
I've been using preconfg command for years, but the other one I found there

https://m.cafe.naver.com/refurbishfactory/181555
[Samsung Galaxy S10 Guides, News, & Discussion] yellowt:
Just for statistics, I changed my S10 CSC starting from the latest android 10 version ( january patches) from ITV to THL. Didn't flash any firmware.

Now i have call recordings enabled. No data loss.
[Samsung Galaxy S10 Guides, News, & Discussion] krio76:
how do you get it? with samkey?
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
there is no other method for now
[Samsung Galaxy S10 Guides, News, & Discussion] naudmick:
Hello everyone, could someone tell me how much credit it takes to change csc on a galaxy S10 and could someone post a link to buy it? Thank you
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
csc change is 2 credits from what i remember. to buy them, search on ebay for sam key credits and you will find it
[Samsung Galaxy S10 Guides, News, & Discussion] naudmick:
I confirm that samkey now works on Android 10, I just changed from Csc BTU to XEF
[Samsung Galaxy S10 Guides, News, & Discussion] Kingpc1:
Samkey is the only method to change csc ??
[Samsung Galaxy S10 Guides, News, & Discussion] Zlooo:
Do i need 2 credits for every csc change? Or when i changed csc one time, i can always change csc without credits?
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
Yes, samkey is only method to change csc for regular s10.

And yes, you need to use 2 credits everytime you change csc, 1 change doesnt give you permanent option to change it
[Samsung Galaxy S10 Guides, News, & Discussion] abo_anas3:
help

Please can you help me

I an in KSA and i have s10 from hong kong the volte not work if i change the csc it work and how
[Samsung Galaxy S10 Guides, News, & Discussion] Darbar1701:
I changed mine to AUT. And now have AUT/XEU/AUT/BTU, will I get updates from AUT now?? Please answer
[Samsung Galaxy S10 Guides, News, & Discussion] Darbar1701:
That's my set-up there
[Samsung Galaxy S10 Guides, News, & Discussion] Mr.Januzi:
Yes, the first CSC is for updates, the second and 3rd(if dual sim) are for sim operator settings and the last one is the code for which the phone was build for.

I have DBT/DBT/SWC the SWC is swisscom switzerland where I bought the phone.
[Samsung Galaxy S10 Guides, News, & Discussion] Darbar1701:
Thank you, hopefully I'll get one now next week if Switzerland releases one which I think they will
[Samsung Galaxy S10 Guides, News, & Discussion] Darbar1701:
Hmmm VoLTE doesn't seem to be working now even though I have the option in settings, is there any fix??
[Samsung Galaxy S10 Guides, News, & Discussion] abo_anas3:
I have proplem ERROR(1090) : Failed installing required database! in samkey
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
report it on samkey forums. devs will sort it out for you.
[Samsung Galaxy S10 Guides, News, & Discussion] prince_72:
Has anyone tried the samkey with the snapdragon models (973U) and changing the CSC to ATT ? I tried to use the samkey and gave me warnings that the secure area might relock for good
[Samsung Galaxy S10 Guides, News, & Discussion] TGAMO:
Greetings all, i posted this in another thread, but apparently that was for international phones only. I am trying to determine if this method will work if i have a network unlocked-N960U1 on Verizon potpaid? Additionally if not what will work without root if any? Thanks in advance..
[Samsung Galaxy S10 Guides, News, & Discussion] ebivkcalb:
check if your device is on supported list on samkey forums.... or in app directly (not 100% sure that you can check it in app tho)
[Samsung Galaxy S10 Guides, News, & Discussion] valyvis10:
I change csc on my G973F , S10,from BTU to THL, with samkey from ebay, 2 credits consume (buy 3).

First I got error on the last step, after that I retry and all was ok, on the same initial credit(dontbuy another credit).

Now I have call recording in Romania, orange.

Before change I came from android 10 with last update BTU.

Thank You.
[Samsung Galaxy S10 Guides, News, & Discussion] phpi:
Hello, what's différences between samkey and samtool ?

Thanks. So, the recovery with multi csc and sim in the phone doesnt work anymore for s10 ?
[Samsung Galaxy S10 Guides, News, & Discussion] GilPangaio:
Changed CSC on my Note 10+ 5G

Hey guys...

Changed my CSC from AUT to BTU and after also changed to XEU, but in both situations I ran into an issue.

Once I changed I noticed that my id caller and spam greyed out and did not work anymore... Is there any way of activating that functionality using BTU or XEU that anyone knows how, or is it impossible?

I also changed back to AUT again and that worked again.

Im using a Portuguese chip from Vodafone and there is no TPH or TCL CSC support for this phone as it came from a german service provider DTM.

Also noticed that chat functionality does not work with Samsung messages app. But fortunatly there is a turn arround using google messages that you can get on play store.

Hope someone can help me with this situation.

Best wishes to all...