Question S23 - call recording - possibility of changing CSC ?

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magber68

New member
Jul 13, 2008
4
0
Hello. Can someone tell me how I can record calls with the S23 ultra with OS for Spain... Thanks in advance.
 
I change CSC to ILO and record call working good but my samsung calendar marked Friday and Saturday as a weekend day 😀. Is it possible to changed weekend days colors?

it's a ILO CSC configuration so if you are not rooted you can't change it
if you are rooted change XXXXBRX to XXXXXXX or delete the line

S918B ILO calendar.PNG


you can change your CSC to INS SEK SLK THL or XXV
 
S23, S23+ and S23 Ultra in UAE are sold International versions SM-S911B, SM-S916B and SM-S918B with XSG CSC - which is for UAE. The CSC of these SM-S91*B devices can be changed* to INS, THL, XXV, ILO, SEK,... to enable internal Call Recording feature.

* via SamFw (free) or SamKey (paid).
 
S23, S23+ and S23 Ultra in UAE are sold International versions SM-S911B, SM-S916B and SM-S918B with XSG CSC - which is for UAE. The CSC of these SM-S91*B devices can be changed* to INS, THL, XXV, ILO, SEK,... to enable internal Call Recording feature.

* via SamFw (free) or SamKey (paid).
Do changing CSC to these countries affect signal reception or 5g bands?
My galaxy watch 5 is UAE version, does it affect pairing with phone if I change CSC?
Thank you
 

nguyenlucky

Senior Member
Jan 30, 2013
524
192
danang
S22 Ultra (SM-S908B) only SEK has Call Recording.
S22 Ultra (SM-S908E) has INS.
Other variants SM-S908x - x is U, U1, W, N or 0 - sorry, no CSC.
S9080 can use China firmware (CHC) to get call recording, but no Google services.
S908N (Korea) has call recording in all CSCs (KOO, KTC, SKC, LUC).

I quoted you several times on this matter already, but you keep telling people otherwise.
 
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S9080 can use China firmware (CHC) to get call recording, but no Google services.
S908N (Korea) has call recording in all CSCs (KOO, KTC, SKC, LUC).

I quoted you several times on this matter already, but you keep telling people otherwise.
Ok, I'll take a note!

But I personally do know someone how will switch to CSC for Call Recording on "price" to lose Google Services. So, no reasonable option for "0" model.)

For N model CSC change is forbidden by Samsung. Even all N CSCs has Call Recording, people not interested because of it.
 
Do no update to S91*BXXS2AWEA
The firmware is not signed by Google Play Protect - so phone become UNCERTIFIED and Google Pay stops, other SafetyNet dependent also.

At the moment only THL CSC is pushed to ...WEA. Others (at the moment) are on WD1.

TThe is nonoption to downgrade because this is first firmware with new 2 bootloader.

Deleting, Unistalling, Clearing data, even Factory reset do NOT avoid uncertified status.

(There is a chance for updating Play Protect but it's less likely before Samsung new firmware.)

Current option for already updated to WEA:
Just wait for new WEx (after A) or WFx firmware.
 

sabes143

Senior Member
Sep 12, 2007
179
2
London
Hey,

I need to change CSC on my S23 ultra to have samsung pay. i need it to use car digital key.
If I use SamFw tool, will I use my data on phone? will it do factory reset?
What do I need to know before doing it?
will INS code be ok for having samsung pay?

Thx for help, been totaly new in this area
You can use the samfw tool without resetting the phone. I did change mine from EVR to THL and everything is working. Good luck
 

_Sofos_

Senior Member
Sep 9, 2011
1,527
1,238
Thessaloniki
Do no update to S91*BXXS2AWEA
The firmware is not signed by Google Play Protect - so phone become UNCERTIFIED and Google Pay stops, other SafetyNet dependent also.

At the moment only THL CSC is pushed to ...WEA. Others (at the moment) are on WD1.

TThe is nonoption to downgrade because this is first firmware with new 2 bootloader.

Deleting, Unistalling, Clearing data, even Factory reset do NOT avoid uncertified status.

(There is a chance for updating Play Protect but it's less likely before Samsung new firmware.)

Current option for already updated to WEA:
Just wait for new WEx (after A) or WFx firmware.
Argh already did the update and after the first 3 payments it's now blocked...
If you manage to get it to work please let us know!
 
Argh already did the update and after the first 3 payments it's now blocked...
If you manage to get it to work please let us know!

Choices:
- Тhe realistic solution to the problem is new/next Samsung firmware. (this month)
- Тhe less likely solution is a new Google Play Protect (never happens, or not before next samsung fw)
- Donwgrade to "cerified" firmware version. Only if possible - means older fw is same bootloader version. (Currently S23* not possible, S22 is possible.)
-Other software fixes are most likely to trip knox or to brick phone. (These fixes are mostly made for rooted phones to deceive Play Protect that "device is not rooted". I never saw such fix working on device that do not have root access to install it.)
 
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nguyenlucky

Senior Member
Jan 30, 2013
524
192
danang
Ok, I'll take a note!

But I personally do know someone how will switch to CSC for Call Recording on "price" to lose Google Services. So, no reasonable option for "0" model.)

For N model CSC change is forbidden by Samsung. Even all N CSCs has Call Recording, people not interested because of it.
for N models, they used to be able to change CSC. I personally did it on my G981N from KTC to KOO to remove Korean bloat. But it was blocked some time in 2021 I think.

It was possible again with the System Shell Exploit (no Knox trigger), but it was patched I guess.
 

nguyenlucky

Senior Member
Jan 30, 2013
524
192
danang
Also, one interesting thing I just observed. I got the S918B Australian model (XSA CSC), with single physical SIM and eSIM.

After changing CSC to XXV (or any markets with dual physical sims), it becomes S918B/DS.

I am ordering a dual sim tray from Aliexpress to check if this really enables dual physical SIMs for S91xB (no DS) models.
 

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  • 2
    I can not understand people that ask something (which is available in this thread because they are lazy to read), someone take their time to answers them (but because they are too lazy) they keep asking questions (already answered) and want someone else to explain personally and holding their hand, and next request will be (probably) please write me step by step how to change it.

    Just do NOT do anything, forget about this!
    1
    Thank you. After flashing you mentioned I have to use Samfw tools to change active CSC toThl or xxv. Again please explain how to use the tool to change. I never done this before. I don't want to mess-up my phone currently my phone working perfectly. It's because of native call recorder only Thank you for your time.
    Really?!
    Why does everyone need specially and personally made instructions?! It has been explained in this thread several times. A simple youtube search (samfw csc change) shows even a visual.

    If you do not want to mess-up DO NOTHING !!!
    1
    TH
    Hi, guys I have it Samsung Galaxy S23 Plus - [SM-S916B - dual sim] which CSC have enable call redord and callID protection HIYA ??
    Thanks for help :)
    THL, ILO, INS
    1
    INS still not certified yet after the latest update. I need Google Wallet to work, and avoid any data loss. Should I keep waiting for INS to be certified or should I just change my CSC to any other that keeps callid, callrec and Google Wallet?

    Option 1:
    Download via Frija SM-S91xB csc: VIP
    (x is 1 for S23, 6 for S23+ or 8 for S23 Ultra)
    Flash via ODIN BL, AP, CP and HOME_CSC (NOT CSC file)

    No data loss, still on INS, callrec works, callid works, SPay works, GPay works, no OTA (but can switch to EUX or VIP, OTA update, and then again switch to INS for every fw update) .

    Option 2.
    Same as 1 but download THL
    Flash with Odin (BL, CP, AP, HOME_CSC)
    Use SamFW and change to THL

    No data loss, THL, callrec works, callID works, NO SPay, GPay works, OTA works

    Option 3:
    Same as 2 but ILO
    No data loss, ILO, callrec works, callID works, NO SPay, GPay works, OTA works


    Options 4:
    Same as 2 but download XXV and flash

    No data loss, XXV, callrec works, NO callid (can use Hiya as external app, popup), SPay works, GPay works, OTA works

    Option 5
    Wait for next INS update


    P.S.
    I'm on 1
    1
    What about Galaxy Watch features ?
    As far as I know from other users ILO have SHM (Samsung Health Monitor) working for Samsung watches, callrec works, callid works, no spay, OTA works)
  • 11
    Can you give me an easy and specific guide to do it? I've never done it this way before. Only with samkey. Have you installed Sek on the s23 ultra?
    Yes , I used samfw for first time in my s23 ultra. The procedure is very easy and safe. I tried INS but then I changed to SEK for the reasons I explained before.
    In short:
    1. You enable ADB in your phone
    2. You download samfw to your windows PC and run it.
    3. Connect your s23 ultra with the PC through a cable.
    4. Run samfw , and press Tab adb in the program (it is the third tab in the upper place of the app).
    5. You will see a pop up menu with all available XOM multi- csc .
    6. Choose and right in the appropriate box the one you want (INS ,SEK etc).
    7. Press "change csc"
    8. It will appear a prompt saying dial *#1234#* (or something like that ) while the screen of your phone is looking like being in check mode( like the one you have in Samsung Member app when you want to make a check for some function).
    9. That's it. In seconds you have your new scs without data wiped!
    11
    Better:
    INS - callrec, callerID, spay
    THL - callrec, callerID
    XXV - callrec, spay
    7
    Short representation of current latest firmware S918BXXU1AWBD

    FYI (for your information):
    S918 - model
    B - region (U or U1 - US, W - Canada, 0 or 8- China, N - South Korea, B - Europe, E - rest world (for S23* B merged with E)
    XX - free, or operator specific
    U - updated features (OR) S - security only
    1 - bootloader version (firmware can be updated/downgraded only to same or bigger bootloader version)
    A - Android/UI sequence version - starts from A, B, C, ... (Z - beta test)
    W - year (... U - 2021, V - 2022, W - 2023, X - 2024, ... )
    B - month (A - January, B - February, ... L - December)
    D - internal compilation of the month (1...9,A...Z)
    5
    S23 Ultra (SM-S918B) INS csc - new OTA ...WBD
    Call rec, Call ID/spam, SPay - works.
    5
    Do no update to S91*BXXS2AWEA
    The firmware is not signed by Google Play Protect - so phone become UNCERTIFIED and Google Pay stops, other SafetyNet dependent also.

    At the moment only THL CSC is pushed to ...WEA. Others (at the moment) are on WD1.

    TThe is nonoption to downgrade because this is first firmware with new 2 bootloader.

    Deleting, Unistalling, Clearing data, even Factory reset do NOT avoid uncertified status.

    (There is a chance for updating Play Protect but it's less likely before Samsung new firmware.)

    Current option for already updated to WEA:
    Just wait for new WEx (after A) or WFx firmware.