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Hi guys and girls of XDA!
I have recently bought a used A5 2017 Dual SIM on eBay and I am in awe with its battery life even after the Oreo upgrade.
However, Samsung does not sell Dual SIM models here in Germany, my model comes from Iran (CSC: THR)
I have read the forum, but I haven't found answers to my questions.
I want to flash a DBT version onto my phone ans I have a couple of questions.
1) I have a DS model which were never available on a German market. Will Dual SIM work after I flash and will I get updates after I flash?
2) The german version of (mono-SIM) firmware, which is available on Sammobile still has A520FXXU7CRH9 baseband. I have already updated to the -I9 one. Does that mean that I cannot revert back o the H9 and will have to wait until german phones get I9?
3) My phone came with a sticker "Middle Eastern and African SIM only". Both slots work with German (and some other) SIMs as of now. Will this setting revert back and it will be locked to those SIMs, if I change CSC?
4) If I will apply the Combination CSC from Sammobile , will I get access to every region-locked option without tripping knox?
Thanks in advance!
Alex.
Anybody here? up!
I don't know the answers to your specific questions - but if the dual sim (Iran) phone you have works with your german sims why are you trying to reflash it?
Is there a problem or something that is not working?
I live in New Zealand and have an imported UAE (United Arab Emirates) 2017 A5 with dual SIM and it works just fine. I havent tried the second sim, but have heard of other people that have and it works as expected. The phone doesnt have any UAE junkware. You are right - the battery life on this phone is great. I did find the always on display uses more battery that I like though. Really wish they had an option that just turned the AOD on when you got a notification (new email/text/missed call etc) but Samsung don't seem to want to provide useful features like this. I came from a galaxy Note 2 and miss that little notification LED
If it helps, I see that the A520F and A520F/DS do not have different firmware - I have searched and there are plenty of posts on this forum where people have flashed Dual SIM hardware with the 'standard' A520F software and report that the dual SIM functionality works fine.
https://forum.xda-developers.com/samsung-a-series-2017/help/sm-a520f-to-sm-a520f-ds-t3704566
The DS model was never officially sold in new Zealand (the single SIM model was) but I have received the Oreo update and several security updates for my phone anyway since I bought it.
Hi, thanks for your reply!
Is there a problem or something that is not working?
Click to expand...
Click to collapse
VoLTE is not showing up in settings, for instance. I would need this option sometimes.
report that the dual SIM functionality works fine.
Click to expand...
Click to collapse
Thanks for the link.
the battery life on this phone is great.
Click to expand...
Click to collapse
I get 26-28 hours of norml usage.
However one thing that irritates me is why it loses up to 10% over the night? Everything is closed and AOD is off, too. Other than that I had to uninstall Chrome because it literally ate up trice as much battery as everything else added up, including screen.
Not sure about your overnight power loss - sounds a litle high...
I use my phone very little and usually only charge it every 4 or 5 days.
AOD uses more power than I like (I have seen 1% an hour mentioned and that is probably about right), so I switched that off.
Really annoyed that Samsung havent made an AOD setting that only enables the AOD on when there are notifications (Missed call, new messages). I would really find that useful.
Have searched all over but cant find any apps that will do this.
For those interested, here is what happened.
1) I have a DS model which were never available on a German market. Will Dual SIM work after I flash and will I get updates after I flash?
Basically, it is the same model and the same firmware. The "normal" firmware for a non-Dual-SIM market works perfectly with a DS model and gets updates via OTA.
2) The german version of (mono-SIM) firmware, which is available on Sammobile still has A520FXXU7CRH9 baseband. I have already updated to the -I9 one. Does that mean that I cannot revert back o the H9 and will have to wait until german phones get I9?
The main thing is that ninth digit ("7") because it represents the revision of the firmware. As long as it is the same, you can flash it. If not you will get a brick.
3) My phone came with a sticker "Middle Eastern and African SIM only". Both slots work with German (and some other) SIMs as of now. Will this setting revert back and it will be locked to those SIMs, if I change CSC?
It didn`t happen to me.
4) If I will apply the Combination CSC from Sammobile , will I get access to every region-locked option without tripping knox?
I did as follows.
I flashed the DBT firmware from SamMobile and got myself a british code because it is a standard one in this Multi-CSC.
Knox not tripped. But VoLTE and VoWiFi still not working
Then I found the Combination ROM (FACTORY BINARY) with the same revision as the firmware (See question 2 about the "7").
I flashed it, dialed some USSD code. Then menu appeared from which I could choose the product code.
I chose DBT, wiped the data and cache and voila, I had a DBT phone with working VoLTE and VoWiFi otb.
Knox not tripped 0x0 !
ioffer007 said:
For those interested, here is what happened.
1) I have a DS model which were never available on a German market. Will Dual SIM work after I flash and will I get updates after I flash?
Basically, it is the same model and the same firmware. The "normal" firmware for a non-Dual-SIM market works perfectly with a DS model and gets updates via OTA.
2) The german version of (mono-SIM) firmware, which is available on Sammobile still has A520FXXU7CRH9 baseband. I have already updated to the -I9 one. Does that mean that I cannot revert back o the H9 and will have to wait until german phones get I9?
The main thing is that ninth digit ("7") because it represents the revision of the firmware. As long as it is the same, you can flash it. If not you will get a brick.
3) My phone came with a sticker "Middle Eastern and African SIM only". Both slots work with German (and some other) SIMs as of now. Will this setting revert back and it will be locked to those SIMs, if I change CSC?
It didn`t happen to me.
4) If I will apply the Combination CSC from Sammobile , will I get access to every region-locked option without tripping knox?
I did as follows.
I flashed the DBT firmware from SamMobile and got myself a british code because it is a standard one in this Multi-CSC.
Knox not tripped. But VoLTE and VoWiFi still not working
Then I found the Combination ROM (FACTORY BINARY) with the same revision as the firmware (See question 2 about the "7").
I flashed it, dialed some USSD code. Then menu appeared from which I could choose the product code.
I chose DBT, wiped the data and cache and voila, I had a DBT phone with working VoLTE and VoWiFi otb.
Knox not tripped 0x0 !
Click to expand...
Click to collapse
Could you go into more detail, please? What USSD code did you dial?
Hi Everyone,
I'm from Australia and recently bought a SM-G781B off eBay...
Turns out it was a UAE variant and Samsung Pay is all messed up.
I've flashed the phone a few times now using ODIN, trying to get the right CSC correct for Australia (G781BXXU2CUB5) for either of the following CSC's;
XSA (Generic Australia), OPS (Optus), VAU (Vodafone), or TEL (Telstra).
The issue I have is all the Stock Firmware's I've download and flashed keeps registering my CSC as XME (Malaysia)...
Phone INFO app doesn't even detect any other CSC's in the package
I've tried downloading the correct Firmware packs from the following and none gives me the correct CSC for Australia;
https://samfrew.com/
https://www.sammobile.com/
https://samfw.com/
App: Frija Firmware
Does anyone know why this is happening, or can upload/direct me to correct firmware either XSA, OPS (Optus), VAU (Vodafone), or TEL (Telstra)?
I'm totally at a loss now...
Any help would be much appreciated, thanks heaps in advance.
from what I've read recently Samsung has stopped people being able to switch as of android 11.
maybe... I stress MAYBE according to your countryman Hugh Jefferys, if there's a lower version of firmware on the same binary number you might be able to downgrade and then that might mean you can switch CSC.
this is someone who's never even tried changing CSC telling you this so your own research is obviously the only thing to put some faith in.
good luck
XSG (UAE) firmware is part of the OJM multi CSC, whereas XSA/OPS/TEL are part of the OLM multi CSC. This means that it is not possible to simply flash XSA in Odin as the multi CSCs are different, you would first have to use the combination ROM to change from OJM to OLM and then you would be able to flash any OLM CSC firmware, whether that be Australia, Singapore, Malaysia, or Thailand. I'm an Aussie myself, I got my phone from JB Hi Fi but switched it to Thailand CSC since XSA updates are horrendously slow (Samsung Pay does still work on Thailand CSC as does VoLTE/VoWiFi). For your case though, I'm afraid you are out of luck in terms of changing the multi CSC with the combination ROM, if you are on One UI 3.1 then the bootloader version is U2 whereas the combination ROM bootloader version is U1, so you would not be able to flash it anyway. Also, I tried to flash the combination ROM while my bootloader was still on U1 because I wanted to change from OLM to OXM (Romania CSC) for fastest updates, but Odin was not allowing the flash first because of "please get the approval to flash factory images (pit)" which I fixed, then "please get the approval to flash factory images (abl)" at which point I gave up. So as I said before, sorry but I don't think there's a lot you can do Unless a U2 bootloader version combination ROM is leaked which may or may not happen and you can get around the Odin not allowing you to flash it issues, the phone will unfortunately be stuck on UAE firmware (unless there are other countries part of OJM which you could switch to for faster updates).
Hopefully this helps you.
I have the same model! I changed my CSC but for some reason chat features in messaging app doesn't work now..other than that, all's good..
Skhux said:
I have the same model! I changed my CSC but for some reason chat features in messaging app doesn't work now..other than that, all's good..
Click to expand...
Click to collapse
Your software version is was originally XSA, so you wouldn’t have any issues flashing it with XSA and defaulting to XSA instead of another region. The CSC will automatically default back to XSA.
Mine unfortunately defaults to Malaysia XME when flashed with XSA firmware.
FedoraMaster420 said:
XSG (UAE) firmware is part of the OJM multi CSC, whereas XSA/OPS/TEL are part of the OLM multi CSC. This means that it is not possible to simply flash XSA in Odin as the multi CSCs are different, you would first have to use the combination ROM to change from OJM to OLM and then you would be able to flash any OLM CSC firmware, whether that be Australia, Singapore, Malaysia, or Thailand. I'm an Aussie myself, I got my phone from JB Hi Fi but switched it to Thailand CSC since XSA updates are horrendously slow (Samsung Pay does still work on Thailand CSC as does VoLTE/VoWiFi). For your case though, I'm afraid you are out of luck in terms of changing the multi CSC with the combination ROM, if you are on One UI 3.1 then the bootloader version is U2 whereas the combination ROM bootloader version is U1, so you would not be able to flash it anyway. Also, I tried to flash the combination ROM while my bootloader was still on U1 because I wanted to change from OLM to OXM (Romania CSC) for fastest updates, but Odin was not allowing the flash first because of "please get the approval to flash factory images (pit)" which I fixed, then "please get the approval to flash factory images (abl)" at which point I gave up. So as I said before, sorry but I don't think there's a lot you can do Unless a U2 bootloader version combination ROM is leaked which may or may not happen and you can get around the Odin not allowing you to flash it issues, the phone will unfortunately be stuck on UAE firmware (unless there are other countries part of OJM which you could switch to for faster updates).
Hopefully this helps you.
Click to expand...
Click to collapse
Thanks for the detailed reply.
From what I’ve tested, I have no issues with flashing from XSG OJM Multi to XSA OLM Multi. You can do this provided the FIrmware security number is the same as your current revision. You can’t however flash to a lower security value. See image attached.
The current firmware security value at the moment is “2” running One UI 3.1, Android 11. We can’t downgrade to any security firmware version “1” types with Android 10. If we could, then you can use multiple methods to manually change the CSC .i.e through Google Dialer or IMEI trick.
All the Firmwares at the moment are still Muti regional, unfortunately there doesn’t seem to be a way to change the CSC manually even though they are Multi regional.
All XSA firmwares I’ve downloaded and flashed will keep defaulting to XME as that’s the default unless my original CSC was XSA to begin with for it to detect.
I think the only option at the moment is to use SAMKEY, unless someone comes with with a new Android 11 method...
The other option is to root the phone and ADB to change the CSC, however this would trigger and break KNOX securities.
I did check Samkeys update log and they state it’s supported now, this method wouldn’t trigger KNOX;
VERSION 3.63.9 (PLANET EARTH'S FIRST)
- Added support for G780F (Galaxy S20 FE) ALL BIT
- Added support for G781B (Galaxy S20 FE 5G) ALL BIT
- Fixed FAIL(16) on Slow PC's
- Fixed FAIL(20) on G780F
They’re actually up to VERSION 3.71.9 now.
Might be worth a try.
kuri_2k said:
I think the only option at the moment is to use SAMKEY, unless someone comes with with a new Android 11 method...
The other option is to root the phone and ADB to change the CSC, however this would trigger and break KNOX securities.
I did check Samkeys update log and they state it’s supported now, this method wouldn’t trigger KNOX;
VERSION 3.63.9 (PLANET EARTH'S FIRST)
- Added support for G780F (Galaxy S20 FE) ALL BIT
- Added support for G781B (Galaxy S20 FE 5G) ALL BIT
- Fixed FAIL(16) on Slow PC's
- Fixed FAIL(20) on G780F
They’re actually up to VERSION 3.71.9 now.
Might be worth a try.
Click to expand...
Click to collapse
I can confirm SamKEY works on One UI 3.1, unfortunately it is paid but it does work. You can get an account for cheap from eBay with 1 credit on it which is all you need to do the CSC change. Using it I was able to change from XSA to THL (with no data wipe at all which really surprised me).
kuri_2k said:
Your software version is was originally XSA, so you wouldn’t have any issues flashing it with XSA and defaulting to XSA instead of another region. The CSC will automatically default back to XSA.
Mine unfortunately defaults to Malaysia XME when flashed with XSA firmware.
Click to expand...
Click to collapse
Trust me you wouldn't want XSA firmware anyway, the updates are terribly slow for it for the S20 FE 5G (not sure about 4G), it tends to get security patches a month after they should've came out, for example it got the March security patch in April which is pretty awful imo. I think it's the slowest CSC in general for the G781B, if you're on OLM multi CSC you're much better off switching to THL where the updates are a lot faster.
kuri_2k said:
Thanks for the detailed reply.
From what I’ve tested, I have no issues with flashing from XSG OJM Multi to XSA OLM Multi. You can do this provided the FIrmware security number is the same as your current revision. You can’t however flash to a lower security value. See image attached.
The current firmware security value at the moment is “2” running One UI 3.1, Android 11. We can’t downgrade to any security firmware version “1” types with Android 10. If we could, then you can use multiple methods to manually change the CSC .i.e through Google Dialer or IMEI trick.
All the Firmwares at the moment are still Muti regional, unfortunately there doesn’t seem to be a way to change the CSC manually even though they are Multi regional.
All XSA firmwares I’ve downloaded and flashed will keep defaulting to XME as that’s the default unless my original CSC was XSA to begin with for it to detect.
Click to expand...
Click to collapse
That's interesting, I didn't think it was possible to change between multi CSCs like this without the combination ROM (how you were able to switch from OJM to OLM). If you try to switch to an OXM multi CSC such as DBT or ROM from OLM multi CSC, what happens? Does it work? I'll be honest I never tried it myself but didn't have the motivation to try it anyway as I heard it wouldn't work.
FedoraMaster420 said:
That's interesting, I didn't think it was possible to change between multi CSCs like this without the combination ROM (how you were able to switch from OJM to OLM). If you try to switch to an OXM multi CSC such as DBT or ROM from OLM multi CSC, what happens? Does it work? I'll be honest I never tried it myself but didn't have the motivation to try it anyway as I heard it wouldn't work.
Click to expand...
Click to collapse
Hi There,
Yes, im sure it works provided the security firmware version is the same as I mentioned above.
I also changed to BTU to test.
I can't test for you any longer as I've returned the device for a refund. Will go buy an AUS XSA Variant.
Attached are the images of my original and changed firmware for your reference.
kuri_2k said:
Hi There,
Yes, im sure it works provided the security firmware version is the same as I mentioned above.
I can't test for you any longer as I returned the device for a refund. Will buy an AUS XSA Variant.
Attached are the images of my original and changed firmware for your reference.
Click to expand...
Click to collapse
That's very interesting, when you get the XSA variant can you try and see if you are able to flash a CSC such as ROM or DBT on the phone successfully using Odin? I would love to know if it was possible for this to work or not, I'm on THL myself after changing from XSA and did not think it was possible to switch to a different multi CSC (from OLM to OXM).
FedoraMaster420 said:
I can confirm SamKEY works on One UI 3.1, unfortunately it is paid but it does work. You can get an account for cheap from eBay with 1 credit on it which is all you need to do the CSC change. Using it I was able to change from XSA to THL (with no data wipe at all which really surprised me).
Click to expand...
Click to collapse
Wish I tried it before returning the device. The Australian stock only has 6GB RAM and no dual-sim....
kuri_2k said:
Wish I tried it before returning the device. The Australian stock only has 6GB RAM and no dual-sim....
Click to expand...
Click to collapse
Yeah that's true no 8GB variant sold here as far as I know not even on the Samsung website and we don't even get eSIM support either
Is there an update/workaround on this issue?
are there any methods that work without samKey?
Noticed that the dialer app that was once able to record calls, is now recording only me talking, since the latest OTA updates on the stock firmware (updated to oneUI 3.1 and Android 11).
I'm also on XSG (OJM) firmware and want to change CSC to enable call recording on galaxy S20 FE 5G (model G781B).
Would love to know how can it be done.
*my software info is attached in the screenshot
thanks!
VM57 said:
Is there an update/workaround on this issue?
are there any methods that work without samKey?
Noticed that the dialer app that was once able to record calls, is now recording only me talking, since the latest OTA updates on the stock firmware (updated to oneUI 3.1 and Android 11).
I'm also on XSG (OJM) firmware and want to change CSC to enable call recording on galaxy S20 FE 5G (model G781B).
Would love to know how can it be done.
*my software info is attached in the screenshot
thanks!
Click to expand...
Click to collapse
I'm sure by now you've already sorted this, but this is for future people with a need to change CSC
The SamFW FRP Tool can tell you which CSCs are available on your phone already, and can automatically have the CarrierPreConfig service trigger a CSC update. Only need to enable USB Debugging. No root, no reinstall.
But if your phone doesn't have the CSC you need already, download Frija, or another firmware download tool, you'll be able to download and install an OXM Multi CSC firmware (such as XSA, OPS, TEL or VAU), and install it via ODIN tool.
Be sure to select HOME_CSC to keep your data, and backup first.
Peterepeat87 said:
I'm sure by now you've already sorted this, but this is for future people with a need to change CSC
The SamFW FRP Tool can tell you which CSCs are available on your phone already, and can automatically have the CarrierPreConfig service trigger a CSC update. Only need to enable USB Debugging. No root, no reinstall.
But if your phone doesn't have the CSC you need already, download Frija, or another firmware download tool, you'll be able to download and install an OXM Multi CSC firmware (such as XSA, OPS, TEL or VAU), and install it via ODIN tool.
Be sure to select HOME_CSC to keep your data, and backup first.
Click to expand...
Click to collapse
Thank you, mate! I have just registered here specifically to thank you You really were the last random post I found in the internet that helped me to solve this unflashable state of my S9. Thank you again! <O
Hi all,
I purchased an A52s 5G (SM-A528B/DS, snapdragon version) last week. I never had a Samsung before so I’m learning now about CSC and such.
I noticed that I don’t have the call recording function even though my country should support it (ILO). As it turns out the device has XSG CSC (I guess it’s a non-official parallel import).
I gathered information around the forums and I’m trying to understand if I can change the CSC by factory reseting and doing the device setup while my ILO SIM card is installed.
Apologies if my questions are stupid and the answer is obvious, but I couldn’t piece it together.
I’m trying to avoid tripping Knox to retain my warranty.
I read somewhere that ILO and XSG are part of the same multi-CSC group (OJM) and that it should work?
I read somewhere else that it no longer works on One UI 3.1/Android 11 versions?
I read somewhere else again that samkey may be a viable solution?
So should I try just by factory resetting the phone? Or try samkey? Or?
Is there any way to change CSC on the fly and avoid having to factory reset the device?
Thanks so much in advance,
Tal
I used to require a SIM to change the CSC but was able to do without it this time.
Doesn't trip Knox. There's a list of countries that details which have call recording built in.
talla1 said:
Hi all,
I purchased an A52s 5G (SM-A528B/DS, snapdragon version) last week. I never had a Samsung before so I’m learning now about CSC and such.
I noticed that I don’t have the call recording function even though my country should support it (ILO). As it turns out the device has XSG CSC (I guess it’s a non-official parallel import).
I gathered information around the forums and I’m trying to understand if I can change the CSC by factory reseting and doing the device setup while my ILO SIM card is installed.
Apologies if my questions are stupid and the answer is obvious, but I couldn’t piece it together.
I’m trying to avoid tripping Knox to retain my warranty.
I read somewhere that ILO and XSG are part of the same multi-CSC group (OJM) and that it should work?
I read somewhere else that it no longer works on One UI 3.1/Android 11 versions?
I read somewhere else again that samkey may be a viable solution?
So should I try just by factory resetting the phone? Or try samkey? Or?
Is there any way to change CSC on the fly and avoid having to factory reset the device?
Thanks so much in advance,
Tal
Click to expand...
Click to collapse
pacificator1048 said:
I used to require a SIM to change the CSC but was able to do without it this time.
Doesn't trip Knox. There's a list of countries that details which have call recording built in.
Click to expand...
Click to collapse
I have the exact same issue with the same XSG CSC, and I need to change to ILO.
Can you guys help me with that?
CosTuMe said:
I have the exact same issue with the same XSG CSC, and I need to change to ILO.
Can you guys help me with that?
Click to expand...
Click to collapse
To anyone who might encounter this in the future, My phone was bought trough GoMobile a parallel importer in Israel who didn't have call recordings available although the official one had.
I used SAMKEY in order to change the CSC into "ILO" the Israeli CSC and it worked getting me back the recordings and even had gotten OTA's after it.
I bought an A52s 5G on Amazon UK, and the model that arrived was a Romanian one. I find two things very odd: there is nothing outside the box to indicate that the device is not a UK one (product code would suffice), and when opening the box (which was untampered, as expected) it had a UK plug charger, adding to the fact that the device was destined for the UK market. The back of the device shows a sign for compliance with UK CA standards, and booting it first time, it greeted me in English. However, soon after I figured out the shortcomings and I found that CSC is set to ROM. Factory resetting the phone with a UK sim didn't make much difference however this time the phone greeted me in Romanian. While I've resolved the issue with.. the usual method, I find it dodgy and either the seller went to great lengths to hide the originating country or Samsung is creating these devices targetting Romania but actually making them look British, for.. reasons? Both possibilities are weird.
CosTuMe said:
To anyone who might encounter this in the future, My phone was bought trough GoMobile a parallel importer in Israel who didn't have call recordings available although the official one had.
I used SAMKEY in order to change the CSC into "ILO" the Israeli CSC and it worked getting me back the recordings and even had gotten OTA's after it.
Click to expand...
Click to collapse
Did you use it on Galaxy A52s 5G? Which firmware date version did you use to change the CSC?
I wanna go back to my original CSC.
gambit1091 said:
Did you use it on Galaxy A52s 5G? Which firmware date version did you use to change the CSC?
I wanna go back to my original CSC.
Click to expand...
Click to collapse
I think I was on the latest one
can someone help with it?
i am currently before buying from GOMOBILE parallel , and want to add call recording.
can someone help with it?
i am currently before buying from GOMOBILE parallel , and want to add call recording.
CosTuMe said:
To anyone who might encounter this in the future, My phone was bought trough GoMobile a parallel importer in Israel who didn't have call recordings available although the official one had.
I used SAMKEY in order to change the CSC into "ILO" the Israeli CSC and it worked getting me back the recordings and even had gotten OTA's after it.
Click to expand...
Click to collapse
mordydd91 said:
can someone help with it?
i am currently before buying from GOMOBILE parallel , and want to add call recording.
Click to expand...
Click to collapse
Thats exactly what I did, bought from GoMobile as well, change the csc trough SamKey to ILO
CosTuMe said:
Thats exactly what I did, bought from GoMobile as well, change the csc trough SamKey to ILO
Click to expand...
Click to collapse
P{ls help me throw this
talla1 said:
Hi all,
I purchased an A52s 5G (SM-A528B/DS, snapdragon version) last week. I never had a Samsung before so I’m learning now about CSC and such.
I noticed that I don’t have the call recording function even though my country should support it (ILO). As it turns out the device has XSG CSC (I guess it’s a non-official parallel import).
I gathered information around the forums and I’m trying to understand if I can change the CSC by factory reseting and doing the device setup while my ILO SIM card is installed.
Apologies if my questions are stupid and the answer is obvious, but I couldn’t piece it together.
I’m trying to avoid tripping Knox to retain my warranty.
I read somewhere that ILO and XSG are part of the same multi-CSC group (OJM) and that it should work?
I read somewhere else that it no longer works on One UI 3.1/Android 11 versions?
I read somewhere else again that samkey may be a viable solution?
So should I try just by factory resetting the phone? Or try samkey? Or?
Is there any way to change CSC on the fly and avoid having to factory reset the device?
Thanks so much in advance,
Tal
Click to expand...
Click to collapse
did you succeed? do you have call recording?
For some reason I've never been able to buy a Samsung that used a single sku CSC.
Even with ICCID locked devices they always shipped with the multi-csc/multi-csc2, so I've always been able to use a SIM Card to change out carriers unless the EFS/CSC partitions blocked it partially.
And even in those couple cases, I've always been able to cross-flash carrier firmware for that device to switch networks when need be.
This method even allowed me to use my AT&T locked Galaxy Note5 with T-Mobile Firmware. The only bug was the AT&T Modem's lack of hardware support for all of the TMO network bands.
Other than that. I even bested the Geek Squad at Best Buy...
This method worked on my A32x 5G.
In the EU it isn't legal for OEM's to sell phones with a native call recording feature.
With Huawei phones sold in EU you can install the native call recorder apk from a region where they have this feature and problem solved.
Can we do the same with Samsung phones, or do we need to flash a CSC from a region that has that feature?
PS: I know some 3rd party apps can do the same but I want to use the native app that Samsung.
So I managed to do it but it requires flashing files with Odin (but it doesn't trigger knox):
1- My Galaxy A52s had the ROM A528BXXS1BVC2 from PHE region
2- I downloaded with Frija the same ROM A528BXXS1BVC2 (very important) but from a region with call recorder enabled (I chose XID from Indonesia)
3- I flashed with Odin only the HOME_CSC file in the CSC file option (I didn't flash anything else)
Flashed successfully and call recording now appears in the Phone app settings. No factory reset needed
CONS:
I'm getting some notifications from app Samsung Gifts Indonesia (but the app can be disabled)
I get an additional Samsung Pay app, which is a different version than the one I had already before
jmbnus said:
So I managed to do it but it requires flashing files with Odin (but it doesn't trigger knox):
1- My Galaxy A52s had the ROM A528BXXS1BVC2 from PHE region
2- I downloaded with Frija the same ROM A528BXXS1BVC2 (very important) but from a region with call recorder enabled (I chose XID from Indonesia)
3- I flashed with Odin only the HOME_CSC file in the CSC file option (I didn't flash anything else)
Flashed successfully and call recording now appears in the Phone app settings. No factory reset needed
CONS:
I'm getting some notifications from app Samsung Gifts Indonesia (but the app can be disabled)
I get an additional Samsung Pay app, which is a different version than the one I had already before
Click to expand...
Click to collapse
can you go in (if you're on android 12)
Root/optics/configs/carriers/single/(XID i suppose)/conf/system
and copy upload and paste here the folder ? i want to see inside the file cscfeature.xml and cscfeature_network.xml
so i can extrapolate the correct writing / code to activate the call recorder and apply it to other csc
raffybest94V01 said:
can you go in (if you're on android 12)
Root/optics/configs/carriers/single/(XID i suppose)/conf/system
and copy upload and paste here the folder ? i want to see inside the file cscfeature.xml and cscfeature_network.xml
so i can extrapolate the correct writing / code to activate the call recorder and apply it to other csc
Click to expand...
Click to collapse
Me too
Anyone confirms this works on Oneui 4.1, without affecting data? Thank you
raffybest94V01 said:
can you go in (if you're on android 12)
Root/optics/configs/carriers/single/(XID i suppose)/conf/system
and copy upload and paste here the folder ? i want to see inside the file cscfeature.xml and cscfeature_network.xml
so i can extrapolate the correct writing / code to activate the call recorder and apply it to other csc
Click to expand...
Click to collapse
I didn't root my phone so I can't confirm, sorry..
innocentus said:
Anyone confirms this works on Oneui 4.1, without affecting data? Thank you
Click to expand...
Click to collapse
This works. Nothing has been erased. Call recorder is available through samsung phone app
jmbnus said:
So I managed to do it but it requires flashing files with Odin (but it doesn't trigger knox):
1- My Galaxy A52s had the ROM A528BXXS1BVC2 from PHE region
2- I downloaded with Frija the same ROM A528BXXS1BVC2 (very important) but from a region with call recorder enabled (I chose XID from Indonesia)
3- I flashed with Odin only the HOME_CSC file in the CSC file option (I didn't flash anything else)
Flashed successfully and call recording now appears in the Phone app settings. No factory reset needed
CONS:
I'm getting some notifications from app Samsung Gifts Indonesia (but the app can be disabled)
I get an additional Samsung Pay app, which is a different version than the one I had already before
Click to expand...
Click to collapse
Does the Samsung Pay app work in Europe?
ALWA7SH6 said:
Does the Samsung Pay app work in Europe?
Click to expand...
Click to collapse
The one from the Play store won't work. The one linked with CSC will but with Indonesian banks.
So it seems to be useless.
jmbnus said:
So I managed to do it but it requires flashing files with Odin (but it doesn't trigger knox):
1- My Galaxy A52s had the ROM A528BXXS1BVC2 from PHE region
2- I downloaded with Frija the same ROM A528BXXS1BVC2 (very important) but from a region with call recorder enabled (I chose XID from Indonesia)
3- I flashed with Odin only the HOME_CSC file in the CSC file option (I didn't flash anything else)
Flashed successfully and call recording now appears in the Phone app settings. No factory reset needed
CONS:
I'm getting some notifications from app Samsung Gifts Indonesia (but the app can be disabled)
I get an additional Samsung Pay app, which is a different version than the one I had already before
Click to expand...
Click to collapse
Tried it on Android 12 and it bricked my device. Don't try this CSC method. It doesn't work.
I simply installed from the other thread the A72 mods with magisk and i got recording now. There are also official settings for it in official dialler to enable/disable recording always. I have it to record when i want.
My csc is VGR (Vodafone Greece)
BlueChris said:
I simply installed from the other thread the A72 mods with magisk and i got recording now. There are also official settings for it in official dialler to enable/disable recording always. I have it to record when i want.
My csc is VGR (Vodafone Greece)
Click to expand...
Click to collapse
Good to know. It means there's actually no way with non modified device to change it except with CSC flash.
k4sh44 said:
Good to know. It means there's actually no way with non modified device to change it except with CSC flash.
Click to expand...
Click to collapse
I only have root & magisk, by modified you mean to unlock the bootloader?
Either way all are working fine here with zygisk and hide root from banking apps which was crucial for me. Nfc payments work also fine.
BlueChris said:
I only have root & magisk, by modified you mean to unlock the bootloader?
Either way all are working fine here with zygisk and hide root from banking apps which was crucial for me. Nfc payments work also fine.
Click to expand...
Click to collapse
Question. You have magisk and phone is rooted but your booloader is not unlocked? How did you get it rooted with magisk then, most curious about your post...
Arobase40 said:
It is obvious he unlocked his bootloader as there is still no known exploit to gain root with this phone.
Click to expand...
Click to collapse
Off course i unlocked the boot loader to have magisk and i don't see a reason why not to do it.
Hi, will I still get OTA updates after flashing XID csc?
Errorman said:
Hi, will I still get OTA updates after flashing XID csc?
Click to expand...
Click to collapse
If your are not rooted, why not?
In my country, Sweden, call recording is fully legal. In a phone call it is sufficient that only one of the participants (the caller) is aware of that the call is being recorded. To record a phone call without the knowledge of any of the participants is illegal unless it is done by the police and even they have to have special permit by a state attorney.
Even though this is the case all phone makers chose to block call recording for phones sold in Sweden. I have never been able to get an answer as to why they do this.
For my previous phone, Oneplus 8, there was a simple hack you could do in the caller app to enable call recording. Problem was that as time went by and newer firmware arrived the blocking of the call recording was restored faster and faster.
I now rely on an Olympus pocket recorder when I must record a phone call. Sometimes as you talk to company reps or officials it is very handy to record their statements since this is permitted as evidence in our courts of law.
I don't understand why you don't use call recording apps instead of changing the CSC,
There are many modified and cracked apps that allow you to record calls such as
Cube ACR
Automatic Call Recorder
Call Recorder - ACR
Arobase40 said:
To my knowledge call recording or recording with any recording device is illegal unless the other participant knows and accepts this recording or unless you keep it for yourself as a private archive (even in that case don't think it is legal but if nobody knows... ^^) and you are not allowed to use this recording in a civil procedure and as Sweden is part of E.U there is no exception !
The term "participant" may have a totally different meaning in real life than in the judicial setting !!!
Sweden Audio and Video Recording Laws - Recording Law
Can You Record Phone Calls and Conversations in Sweden? In Sweden, you are allowed to record conversations and phone calls provided you are an active participant, or you have obtained authorization to record. It is against the law to record private conversations when you’re not a participant or...
recordinglaw.com
In some European countries (such as France) the production of recordings (or pictures) can be accepted in a penal procedure as you are allowed to provide any means of evidence as an exception of the law as long as it directly serves your own case ("Loreal jurisprudence" vs Sarkozy) !!! ^^
But you must be very careful in any case as you must be sure this exception applies in your own country...
Click to expand...
Click to collapse
You are wrong. It is legal in Sweden to record a phone call as long as one of the participants knows about it. EU law do not override Swedish law in this case.
As the title suggests, I was able to successfully change the CSC on my factory unlocked (unbranded) Fold 3 - F926B/DS bought in Germany with OXM firmware having Android 13 & one UI 5.0 from EUX to INU csc using SamFW Tool v3.31 in hardly 2-3 mins. Kindly note that I also looked into other options to do this like Samkey tool (paid service) and alliance shield app (which doesn't work anymore) etc before engaging with the SamFW Tool as none were simple/working with no complications whatsoever involved.
My main objective to change the CSC was to enable call recording and couple of other features (including some pleasant surprises listed in the end of the post) which were available in the INU csc with little to no hassle. The process was pretty simple, straight forward and most importantly, FREE . It DOESN'T require any factory reset, flashing of roms or wiping cache partition before or after the process.
The step by step guide process which worked for me is as follows:
STEP 1: Click here - SamFW Tool Download - to download the latest version of SamFW tool.
STEP 2: Remove the sim card and connect your phone to a computer and make sure the phone's drivers are installed.
STEP 3: Unzip the downloaded file. Right click on the file SamFwFRPTool.exe and 'Run as Administrator'.
STEP 4: After the software opens, make sure your phone is detected before proceeding. If its detected, click on ADB tab in the software.
STEP 5: In your phone, go to developer options and enable 'usb debugging'.
STEP 6: In your phone, open phone dialer and type *#0*# to get into test mode. Leave the phone unlocked and keep it aside now.
STEP 7: Click on 'Change CSC' button in the ADB tab of the tool. Now the tool will connect to your phone, check and list the available CSCs which your phone model supports as shown in the pic attached.
STEP 8: Choose a CSC which you wish to change to from the drop down menu in the pop-up window as shown in the pic attached.
NOTE: The tool also has the option to force the phone to accept a CSC not listed/supported as well by manually entering the same. However, I would not recommend doing it if you really wish to get OTA updates and also to evade any unforeseen issues. I must admit, I haven't frankly tried this and do not know what lies in the pandora box to be honest.
STEP 9: After choosing the CSC from the drop down, the tool quickly connects to the phone, changes the CSC and restarts the phone.
STEP 10: After the phone restarts, unlock the phone using your pin/password, insert your simcard, check the change of CSC in software information, disconnect the phone from the computer and also disable the 'usb debugging' in the developer options.
That's it! All done. Phone restarts with the new chosen CSC and the related features will now be active!
BONUS: There is also an option in the ADB tab in the SamFW Tool named 'Battery information' which gives the complete information of the battery status including the 'charge/discharge cycles' along with its temperature, voltage etc. like in the pic attached. Do note that the information shown in the 'Genuine battery' section isn't correct for some reason and always shows as 'NO' for any phone with/without genuine battery.
With my choice of INU csc the following major changes/surprises were noticed over the EUX:
1. Call recording and a couple of other INU specific features are now enabled (google for more info on what csc enables what features).
2. Not sure why but Battery backup has increased significantly after the csc change to INU. SOT (Screen On Time) which has fallen to 3-4 hrs after the OTA update to One Ui 5.0 & Android 13 is now back to 5-7hrs or more.
3. RAM management has definitely got better. With EUX csc it used be around 5-6GB during standby and now its always around 3-4GB when the phone is idle.
4. Instead of 4G or 4G+, now it shows LTE and LTE+.
5. Mobile data speed has increased both in 5G (Jio True5G network) and in LTE+ when compared to EUX CSC.
6. 5G signal strength has improved drastically. Signal loss or switching to 4G+/LTE+ is very low now.
7. 5G to 4G/LTE switching while calls (VoLTE/VoNR) is more seamless now. Latching back onto 5G network after a call is a breeze now unlike earlier with EUX csc.
8. Phone definitely got faster for some reason. Can very much feel the difference when switching between apps, multi-tasking, even opening/closing apps and other day-to-day tasks.
etc...
Haven't tested whether the OTA updates will still get pushed after the change in CSC yet, as my phone is already updated to the latest patch as I write this. Should absolutely work IMO as long as we choose a CSC which the phone supports but in any case will update the thread once the next update via OTA is available/pushed by Samsung.
Disclaimer: Please be informed that all the above information is purely based on experience of using the tool for changing CSC only which worked well for me with my Fold 3. Cannot take responsibility if it doesn't work for you.
Does it work for Fold 4. Want to change CSC from Korean Region to INU (India). Please guide
Sorry, haven't tried it on Fold 4. Logically it shud work, I guess. There is no harm in connecting n checking what CSCs does ur model supports using the tool IMO.
Tried out but it does not work. It shows only the Korean csc. Even that seems to be not changing
Oh k. I think the tool works, else u wudnt b seeing the CSC which ur phone supports.
I have checked sources in the web as well on this and looks like Fold 3 or 4 with Korean CSC supports only CSC from Korea.
I guess u can still force a CSC on to it replacing the Korean one but thats too risky as u will b missing OTA updates and im not aure wat all things it will mess up.
Awesome! It works and it doesn't wipe the device. I just switched from G975U VZW to CCT without any issues.
BlueTR said:
Awesome! It works and it doesn't wipe the device. I just switched from G975U VZW to CCT without any issues.
Click to expand...
Click to collapse
Happy to hear that. BTW I also got samsung pay/wallet to work as well by installing its apk file today after changing the system language to a local one specific to the changed CSC i.e., English (India) for INU CSC in my case.
I confirm that it is working on a stock android 13! Great tool!
(It worked on the second try though )
Has anyone tired it on a Fold 4, Mine is XAA and I want to convert it to INU. Haven't been abe to do it as yet.
Let me know if someone finds a way, mine is a US version and I want to convert it to the India CSU.
Thanks in advance
unexpected0ne said:
I confirm that it is working on a stock android 13! Great tool!
(It worked on the second try though )
Click to expand...
Click to collapse
Good to know! Just out of curiosity, u tried this on a Fold 3 or Fold 4?
srikanth.addala said:
Good to know! Just out of curiosity, u tried this on a Fold 3 or Fold 4?
Click to expand...
Click to collapse
Fold 3, latest official android 13
unexpected0ne said:
Fold 3, latest official android 13
Click to expand...
Click to collapse
Oh great. Getting otas after the change?
Does OTA work after change?
Hello, can somebody please briefly summerise the options for switching the CSC/Firmware?
I read other threads and this one and now am confused which method actually would work for me.
My situation: i have a Samsung A52s 5G purchased from Deutsche Telekom in Germany, sold separately, not bundled with a contract.
And i am having a contract with a different carrier on a different network, but a german SIM card.
My phone is configured all english, and i need to keep that.
Because of assumed network optimisations and the problem of delayed updates of "branded" phones, i would like to convert the phone from the current CSC of DTM to the DBT using fimrware (A528BXXS1DVL2/A528BOXM1DVK5/A528BXXU1DVK5/A528BXXS1DVL2), which i hope would link me to updates directly provided by Samsung.
I found "https://forum.xda-developers.com/t/...official-firmware-all-samsung-device.2697238/" and "https://forum.xda-developers.com/t/...-multi-csc-codes.4436853/page-5#post-87485577 ", but i am not sure whther the methods described there only apply for UPDATING (within the same CSC) the phone with non-OTA methods, or whether that also covers SWITCHING the CSC?
In the end i have two questions:
1) So far i believed that "simply" putting an official stock Samsung firmware (multi CSC in my case, containing the DBT, but apparently NOT containing the DTM) would bring me there.
But then i read that this might not be suffficient. Instead i also would have to switch the CSC in my Phone's config, which apparently would require purchasing a license for a Samkey unlock code.
Because otherwise i would not receive any OTA updates once i switched just the firmware.
Is that actually true?
I would prefer not to have to buy a Samkey...
And to make the confusion even bigger: now i read, SamFw Tool would also be an option?
But: is that trustworthy? And: from posts of some of you: this might even obsolete to switch the firmware, do i understand that right?
2) If switching firmware still is required: would using Odin/Heimdall be the only option to switch the firmware, or would adb sideloading do the same job as well? I am asking because i don't have access to a windows machine.
Would be so great if someone of you could untangle my confusion a bit, thank you.
MarkoParkovic said:
Does OTA work after change?
Click to expand...
Click to collapse
Did not automatically receive the OTA updates with the recent DVL9 update. However, tried a work around to change the CSC back to EUX via the same tool (which is a 2 min task) to check if I can get OTA again.
And yes it worked! immediately after changing the OTA to its home CSC, was able to see OTA in the updates section of the phone. So, I updated the phone to the latest version (DVL9) and then changed the CSC back to INU after the update . All is well and quick! .
very nice i changed sfr to tur but netflix and always on display app not shown google play so unsupported why idk
burc ugur said:
very nice i changed sfr to tur but netflix and always on display app not shown google play so unsupported why idk
Click to expand...
Click to collapse
May be TUR csc has restricted options/features. In my example after I changed to INU csc (India one) all the India related options got automatically activated like call recording, spam filter, samsung pay using cards etc etc. which weren't available with the EUX csc before the change.
srikanth.addala said:
May be TUR csc has restricted options/features. In my example after I changed to INU csc (India one) all the India related options got automatically activated like call recording, spam filter, samsung pay using cards etc etc. which weren't available with the EUX csc before the change.
Click to expand...
Click to collapse
Any potential issues using INU csc in the UK? I use Samsung pay already but native call recoding would be really useful for me
srikanth.addala said:
May be TUR csc has restricted options/features. In my example after I changed to INU csc (India one) all the India related options got automatically activated like call recording, spam filter, samsung pay using cards etc etc. which weren't available with the EUX csc before the change.
Click to expand...
Click to collapse
edit: excuse me you have play protect certificate? i changed csc samfw topl but now i don't have play protect certificate. Therefore not shown Netflix.
you have this? if you have how can i fix certificate.
burc ugur said:
edit: excuse me you have play protect certificate? i changed csc samfw topl but now i don't have play protect certificate. Therefore not shown Netflix.
you have this? if you have how can i fix certificate.
Click to expand...
Click to collapse
Might be worth clearing cache and data from Google play services see if that helps. Having the same device with 2 different cscs might have confused Google
Edit
Any reason your Google play store is out of date or is it connected to your original issue