Help with Samsung S20 with multiple puzzles - Samsung Galaxy S20 / S20+ / S20 Ultra Questions &

A person sold me a Samsung Galaxy S20 (SM-G980F/DS Exynos) which later I found out had a host of issues that he was cleverly hiding with software. Obviously he wouldn't take the phone back so I am stuck with a potential brick in my hands. Maybe you guys can help solve the puzzles so I can use the phone.
The goal is to reset the thing back to stock, unfortunately, it's not as easy as flashing with Odin. Here are the obstacles:
- The phone appears to be from Hungary with CSC = WWB
- Through lots of research, WWB is potentially Westel which was later bought by Telekom in Hungary
- I live in Czech Republic and I am using O2. (CSC = O2C)
- I used SamFW_FRP Tool to change the CSC to O2C
- I used Frija to download the official stock Samsung firmware (G980FXXEFVG5_MQB54197944, OS12)
- I used Odin 3.14.4 to flash the stock rom onto the S20 (SM-G980F/DS Exynos)
Puzzle 1: The phone sees but can not use the sims. Only emergency calls. This is weird because when the guy sold me the phone, I tested all the functions and the calls and data worked perfect. After the flash, looks to be a different story. Currently, the APNs are correctly set.
Puzzle 2: The Knox setting has been tripped but the phone can't scan for Google Updates because it says "the software has been modified in an unauthorized way"
Can you help me solve the puzzles?

Nazdar Ryanwalkerr, skusil si nainstalovat TWRP? a potom pokial mozno nejaku CustomRom (Beyond/Unbound/Ambasadi...) a portom to skusit? Pripadne sa mi priamo ozvi cez Telegram (@phsnake) alebo cez PM - poradim, mozeme sa pokusit. Nevies ci je to Exynos alebo Snapdragon?
Hi Raynwalker, did U try 2 install TWRP? and after that any CustomRom (Beyond/Unbound/Ambasadi...)? a tried it afterwards? Contact me via Telegram (@phsnake) or PM, we can try then. Do U know if its Exynos or Snapdragon?

@phsnake thx message sent!
Everyone's opinions are valuable, looking forward to your clever solution

why are U not writing in Czech lang? Anyway i think that it will be easier 2 communicate thru telegram/skype/google talk i.e.
But first of all download latest TWRP with VB-meta and prevous to last original fw. FVG5 and latest beyond rom (4.6)- i recomend it I'm using it on my SG 20 Ultra 5G - for starter. Then let me know

Related

[Q] CHN N7100ZCUEMK3 Android 4.3 is it flash able to other countries?

Galaxy Note 2 (International) GT-N7100 CHN N7100ZCUEMK3 Android 4.3 11.11.2013 2010080
Has anyone tried this firmware? Is it stable?
I bought my GT-N7100 in Indonesia. It is compatible with my phone?
The firmware is for China,I f your phone is N7100,you shouldn't face any problem..so go for it.But,Beware it might contain KNOX enabled bootloder,so do some research before flashing..
Gud luck.
Dont flash this
MimpiGadget said:
Galaxy Note 2 (International) GT-N7100 CHN N7100ZCUEMK3 Android 4.3 11.11.2013 2010080
Has anyone tried this firmware? Is it stable?
I bought my GT-N7100 in Indonesia. It is compatible with my phone?
Click to expand...
Click to collapse
Hi ,
Don't flash this ROM for Indonesia version of Note 2.
The boot loader for China Note 2 is different from International ones.
There are strong reasons, that you may brick your phone. Thanks
Hi there,
Sorry to resurrect a month old thread. I just wanted to chuck my findings at this as I have recently received a GT-N7100 CHN N7100ZCUEMK3 Galaxy Note 2 as a birthday present from my wife. And if anybody could recommend any suggestions that would be great!
As I now live in the UK as opposed to China I was getting frustrated that I couldn't use Google Play and the default search engine is Baidu and can't be changed to Google, so i've been trying for the past few days to flash it but it just won't work.
I've been downloading only the official stock roms for the international N7100 and so far i've tried 10 versions from various regions (Europe, UK, India, US) and none of them work. Some fail the moment you hit start on Odin, others will go through the entire process and fail at the end - thus soft bricking my mobile.
Luckily I have been able to use Kies to restore it - which I've installed on the laptop as opposed to my PC which is doing the flashing - but this just puts it back to Chinese mode.
I should also note that the China version is Knox enabled - mine is now burned so anybody else trying this really ought to be careful.
andy3012 said:
Hi there,
Sorry to resurrect a month old thread. I just wanted to chuck my findings at this as I have recently received a GT-N7100 CHN N7100ZCUEMK3 Galaxy Note 2 as a birthday present from my wife. And if anybody could recommend any suggestions that would be great!
As I now live in the UK as opposed to China I was getting frustrated that I couldn't use Google Play and the default search engine is Baidu and can't be changed to Google, so i've been trying for the past few days to flash it but it just won't work.
I've been downloading only the official stock roms for the international N7100 and so far i've tried 10 versions from various regions (Europe, UK, India, US) and none of them work. Some fail the moment you hit start on Odin, others will go through the entire process and fail at the end - thus soft bricking my mobile.
Luckily I have been able to use Kies to restore it - which I've installed on the laptop as opposed to my PC which is doing the flashing - but this just puts it back to Chinese mode.
I should also note that the China version is Knox enabled - mine is now burned so anybody else trying this really ought to be careful.
Click to expand...
Click to collapse
Sorry to resurrect so old thread, but I have an exact same phone with that firmware from China, and wanted to put either the international version or cyanogenmod on it. So did you ever get anything besides China roms installed?

Changing CSC on A520F/DS -- a couple of questions

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?

Question Is there a way to get updates from another region?

I recently got galaxy SM-A325F/DS and realised what a terrible mistake that was. Its on quarterly schedule and due to mediatek SoC its laggy and those slowdowns are really noticeable. There is a update for this phone in peru with september security patch. I don't even know if it's gonna come in my region. Is there a way I can trick phone into thinking that my region is peru with vpn and taking sim cards out? I have seen some toturials about this but no one has done it on samsung phones. How to do this. Yes I am aware I can flash firmware with sep patch but I need OTA updates and they will be disabled. So how do I do this or do I wait. I also want to mention I don't actually care about sep patch. Samsung adds optimizations and stuff to their phones and I want it on my phone. Samsung even makes me regret my choice as I see ads of galaxy A52s and A52 everywhere even on Google discover. Well for a 5-6 years I m stu k with this phone. So it is possible to get this update in my region without flashing any firmwares? Thankyou
Yes you can but your phone won't work correctly with SIM Cards because you are installing a version for another region SIM Cards
Doesn't inserting sim automatically reset the CSC ?
The CSC may change when you receive an update
I also wanted to ask that if I flash the fir.ware with that patch as it was for peru will knox trip?
Only custom firmwares trip Knox
If you unlock the bootloader and flash custom roms it will trip know but stock firmware without bootloader unlocked doesn't trips Knox. If you want help join the Frija discord server and I'll help you.
The frija server can be accessed by click the discord icon in frija firmware Downloader.
Ok thanks. Could you please give discord link here as my PC is not working at the moment
I can't because of XDA tos.
On last novembar update ther is extra 4gb plus ram.New future from samsung.Like virtual memory in cyanogen mod.

Question A52s - change CSC by factory reseting with a SIM?

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.

Question Changing CSC for free using SamFW Tool | No Root required! - A brief guide!

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?
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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
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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

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