Question S23 - call recording - possibility of changing CSC ?

[ChoSmile]

Is INS csc working on s23+?

Do you know?

All S23 Europe/International series (SM-S91*B)
S23 (SM-S911B)
S23+ (SM-S916B)
S23 Ultra (SM-S918B)

 

[redcom7]

All S23 Europe/International series (SM-S91*B)
S23 (SM-S911B)
S23+ (SM-S916B)
S23 Ultra (SM-S918B)

On thank you for your answer..

I suppose that is already late since I have already THL CSC..

I HAVE to wait for the June update... Let's hope that google pay is going to work again or find a way to switch to INS... WHEN bootloader becomes 2 on INS...

 

[nguyenlucky]

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.

Today I received the dual sim tray from aliexpress. It fits two sims perfectly on my single physical sim S918B Australian version.

With the original CSC (XSA), the second physical sim is not recognized. After changing to a CSC where dual physical SIMs S23s are sold (I used INS, you can try EUX, XXV, ...), and factory reset, the second sim is available and working normally. Device model is changed to S918B/DS.

This comment will be helpful for Australian users of Samsung devices with single physical SIM and eSIM, including S23, S22, Z fold 4, flip 4, etc

EDIT: The second physical SIM is disabled after completing the setup wizard, even with INS CSC. I will try to find a way to solve this, including downgrading to April update to use system shell exploit.

GitHub - wr3cckl3ss1/system_shell_2: SMT Shell with a twist! Fully updated and upgraded.

SMT Shell with a twist! Fully updated and upgraded. - GitHub - wr3cckl3ss1/system_shell_2: SMT Shell with a twist! Fully updated and upgraded.

github.com

 

[ChoSmile]

On thank you for your answer..

I suppose that is already late since I have already THL CSC..

I HAVE to wait for the June update... Let's hope that google pay is going to work again or find a way to switch to INS... WHEN bootloader becomes 2 on INS...

Have to wait... any new firwaware (after WEA) of any CSC
OR
Google Play Protect update

It will work... happans many times on different phones.
Even S22 have it on SEK but Play Protect was updated and S22 WE1 firmware become "certified" .

Check from time to time: Settings > About phone > Software information > Google Pay system update

 

[WhiteTree97]

I still dont get it haha. Are you saying SMS will be sent to these numbers from our side? Well, i changed to INS, didn't notice anything..

You stupid or something? If you change your CSC to INS your phone will send an automatic SMS with your phone's IMEI to their government. There are 1.4 billion people living in India and their government is using that info to suppress high crime rate. Even if that happens it's not going to financially destroy you.

 

[JazonX]

Today I received the dual sim tray from aliexpress. It fits two sims perfectly on my single physical sim S918B Australian version.

With the original CSC (XSA), the second physical sim is not recognized. After changing to a CSC where dual physical SIMs S23s are sold (I used INS, you can try EUX, XXV, ...), and factory reset, the second sim is available and working normally. Device model is changed to S918B/DS.

This comment will be helpful for Australian users of Samsung devices with single physical SIM and eSIM, including S23, S22, Z fold 4, flip 4, etc

EDIT: The second physical SIM is disabled after completing the setup wizard, even with INS CSC. I will try to find a way to solve this, including downgrading to April update to use system shell exploit.

GitHub - wr3cckl3ss1/system_shell_2: SMT Shell with a twist! Fully updated and upgraded.

SMT Shell with a twist! Fully updated and upgraded. - GitHub - wr3cckl3ss1/system_shell_2: SMT Shell with a twist! Fully updated and upgraded.

github.com

Did the shell exploit work?
without changing CSC, Maybe you can add the call recording line to your existing CSC.

You need only this line in whatever your current active CSC


<CscFeature_VoiceCall_ConfigRecording>RecordingAllowed</CscFeature_VoiceCall_ConfigRecording>

 

[nguyenlucky]

Did the shell exploit work?
without changing CSC, Maybe you can add the call recording line to your existing CSC.

You need only this line in whatever your current active CSC


<CscFeature_VoiceCall_ConfigRecording>RecordingAllowed</CscFeature_VoiceCall_ConfigRecording>

Uh, I already got call recording with changing CSC. What I want now is dual physical SIMs, which is still disable. I guess it's tied to the original CSC, which is XSA and cannot be changed. Or something else in the EFS partition, I don't know.

I remember technicians used to be able to enable dual physical SIMs on some Exynos Korean models (S9, , Note 9, S10, Note 10), by using a Z3x box (which is very expensive for a normal user). But these devices require root and tripping Knox to install a ROM that supports dual SIM.

Also, there was a Note 9 N9600/SS (N9600 Latin American model, similar to HK version but with single SIM and single IMEI). When I checked that device, they somehow were able to duplicate the IMEI without tripping Knox, and it was running stock HK ROM with TGY CSC. Dual SIMs worked normally.

 

[ChoSmile]

I still dont get it haha. Are you saying SMS will be sent to these numbers from our side? Well, i changed to INS, didn't notice anything..

SMS sent is hidden (invisible) not shown in Messeges app.
You can "see" only its price on next detailed bill (if postpaid sim) or balance drop (if prepaid sim).

(The price of international message of most mobile operators is a few tens of cents at most. It won't be a pain to die. This is one time sms if a new sim is detected.)

 

[ChoSmile]

Did the shell exploit work?
without changing CSC, Maybe you can add the call recording line to your existing CSC.

You need only this line in whatever your current active CSC


<CscFeature_VoiceCall_ConfigRecording>RecordingAllowed</CscFeature_VoiceCall_ConfigRecording>

Works on any CSC but phone must be ROOTED (which is not suitable for most users) and have to be applied after every firmware update.

 

[JazonX]

Uh, I already got call recording with changing CSC. What I want now is dual physical SIMs, which is still disable. I guess it's tied to the original CSC, which is XSA and cannot be changed. Or something else in the EFS partition, I don't know.

I remember technicians used to be able to enable dual physical SIMs on some Exynos Korean models (S9, , Note 9, S10, Note 10), by using a Z3x box (which is very expensive for a normal user). But these devices require root and tripping Knox to install a ROM that supports dual SIM.

Also, there was a Note 9 N9600/SS (N9600 Latin American model, similar to HK version but with single SIM and single IMEI). When I checked that device, they somehow were able to duplicate the IMEI without tripping Knox, and it was running stock HK ROM with TGY CSC. Dual SIMs worked normally.

The Dual Sim feature is probably controlled by the factory.prop file in IMEI folder inside the EFS Partition;

ro.multisim.simslotcount=2
ro.vendor.multisim.simslotcount=2
persist.radio.multisim.config=dsds

If you can shell there, You might be able to create this file or add the lines.

 

[JazonX]

Works on any CSC but phone must be ROOTED (which is not suitable for most users) and have to be applied after every firmware update.

We are not talking about ROOT here on XDA, are we?
Big scary stuff. No way, no no. XDA is the site for the missing user manual samsung forgot to give.

FYI, If you read it once more -
It's about pushing the line via the shell exploit. to enable it on the current active CSC.

 

[nguyenlucky]

The Dual Sim feature is probably controlled by the factory.prop file in IMEI folder inside the EFS Partition;

ro.multisim.simslotcount=2
ro.vendor.multisim.simslotcount=2
persist.radio.multisim.config=dsds

If you can shell there, You might be able to create this file or add the lines.

I tried the system shell (uid 1000), still cannot read the /efs folder (permission denied), let alone edit anything

cat build.prop denied also

 

[nguyenlucky]

The Dual Sim feature is probably controlled by the factory.prop file in IMEI folder inside the EFS Partition;

ro.multisim.simslotcount=2
ro.vendor.multisim.simslotcount=2
persist.radio.multisim.config=dsds

If you can shell there, You might be able to create this file or add the lines.

Also I feel like EFS is not the problem, because the second SIM definitely works during the setup wizard. I can see VOLTE 2 icon and receive calls from the second SIM, , but not after completing the wizard.

the multisim count is like a hard limit, which would disable the second slot completely.

 

[pseudology]

Hey, kind of a newbie to xda recently got uae version of s23 ultra,
Since I reside in india I understand that ins csc would be best for me, can someone be so kind as to help me with these couple of questions.
1) is it safe to change csc right now? I was reading the forum and saw some talk regarding play protect issues on some THL I don't really understands if that is applicable to me
2) will I still get OTA updates
3) which version of samfw should I use?
4) Anything else I should keep in mind before doing this?

Thanks in advance, sorry if the post seems as if j am trying to leech off the community but truly I am just a newbie

 

[nguyenlucky]

Hey, kind of a newbie to xda recently got uae version of s23 ultra,
Since I reside in india I understand that ins csc would be best for me, can someone be so kind as to help me with these couple of questions.
1) is it safe to change csc right now? I was reading the forum and saw some talk regarding play protect issues on some THL I don't really understands if that is applicable to me
2) will I still get OTA updates
3) which version of samfw should I use?
4) Anything else I should keep in mind before doing this?

Thanks in advance, sorry if the post seems as if j am trying to leech off the community but truly I am just a newbie

INS is a good CSC.

1. apart from THL, it's safe. Just don't change to THL for now, it breaks google play protect if updating to AWEA firmware, which is only for THL.
2. yes. Unless you have europe carrier CSC and change to EUX (europe no carrier), some might not have OTA.
3. samfw 3.31
4. backup your device just in case something goes wrong. It should not delete your data though.

 

[nguyenlucky]

We are not talking about ROOT here on XDA, are we?
Big scary stuff. No way, no no. XDA is the site for the missing user manual samsung forgot to give.

FYI, If you read it once more -
It's about pushing the line via the shell exploit. to enable it on the current active CSC.

Today I tried changing CSC to WWD (demo CSC, no particular country). Dual physical SIMs work, but no OTA, no SIM manager, no eSIM. Reverted back to XXV for now.

 

[pseudology]

INS is a good CSC.

1. apart from THL, it's safe. Just don't change to THL for now, it breaks google play protect if updating to AWEA firmware, which is only for THL.
2. yes. Unless you have europe carrier CSC and change to EUX (europe no carrier), some might not have OTA.
3. samfw 3.31
4. backup your device just in case something goes wrong. It should not delete your data though.

Yes currently my csc is xsg and now that I am back to India best would be to change to ins with samfw 3.1 ?
Have I got the gist of it correctly?

 

[nguyenlucky]

Yes currently my csc is xsg and now that I am back to India best would be to change to ins with samfw 3.1 ?
Have I got the gist of it correctly?

samfw 3.31, not 3.1

 

[GoJo ^^]

samfw 3.31, not 3.1

it's up to 4.7 now, why use old version*?

 

[nguyenlucky]

it's up to 4.7 now, why use old version*?

4.0 and above versions are bloated