Develop Bugs

Galaxy S9 multi CSC problem

Hi guys,
I need your help: I get a Galaxy S9 with active CSC set in SMP (it is an unknown version because it's a sample).
I flashed a multi CSC firmware SM-G960F because I need an ITV (Italy) CSC on it (I want OTA and also Samsung Pay Service).
I don't know why, but when I flash the CSC it set automatically on Germany/DE Status with no chance to change it. The Active CSC remains SMP and CSC Status sets into Germany/DE.
I'm sure I've downloaded from Updato the ITV version of the firmware.
In the past years it was very simple because it need only the correct firmware of your country region to solve the problem. But now with this damn Multi CSC it is impossible!
I tried many ways and guides found here but no one solved the problem.
I wanna change it without rooting the device.
Any suggestions?
Thank you so much in advance

iorya984 said:
Hi guys,
I need your help: I get a Galaxy S9 with active CSC set in SMP (it is an unknown version because it's a sample).
I flashed a multi CSC firmware SM-G960F because I need an ITV (Italy) CSC on it (I want OTA and also Samsung Pay Service).
I don't know why, but when I flash the CSC it set automatically on Germany/DE Status with no chance to change it. The Active CSC remains SMP and CSC Status sets into Germany/DE.
I'm sure I've downloaded from Updato the ITV version of the firmware.
In the past years it was very simple because it need only the correct firmware of your country region to solve the problem. But now with this damn Multi CSC it is impossible!
I tried many ways and guides found here but no one solved the problem.
I wanna change it without rooting the device.
Any suggestions?
Thank you so much in advance
Click to expand...
Click to collapse
Apparently it's impossible to get around it because of this multi CSC no matter what firmware you flash it will not get rid of the carrier firmware on the phone.

qualcomm 9650ds, flashed a multi csc firmware, a window popped up:
SIM card change Restart your phone to configure the functions compatible with your new SIM card. This will reset the phone to its default settings and delete all data, including files and downloaded applications. NOW NO RESTAB. AND RESTART
After restarting, the correct csc has been read. (probably has something to do with the Sim card)
PS: if chosed now no, the 4g signal bar showed LTE; if yes, the bar showed 4g
Click to expand...
Click to collapse
Click to expand...
Click to collapse

kevinfan1990 said:
qualcomm 9650ds, flashed a multi csc firmware, a window popped up:
SIM card change Restart your phone to configure the functions compatible with your new SIM card. This will reset the phone to its default settings and delete all data, including files and downloaded applications. NOW NO RESTAB. AND RESTART
After restarting, the correct csc has been read. (probably has something to do with the Sim card)
PS: if chosed now no, the 4g signal bar showed LTE; if yes, the bar showed 4g
Click to expand...
Click to collapse
For the SM-G9650DS, would you mind sharing which multi-csc firmware did you use exactly? which CSC are you on?

[GUIDE]: G975F - Flashing megathread + FAQs

Since the official firmware thread by @henklbr is flooded with posts asking how to flash rather than actual firmware update talk, this thread can be used for that instead.
Here's the Odin flashing guide at the beginning of the thread which nobody will read.
How to flash the stock Odin flashable firmware:
1) Download Odin v3.13.1 - Link
2) Extract the firmware file you just downloaded. You should get 5 files:
AP (System & Recovery)
BL (Bootloader)
CP (Modem / Radio)
CSC_OXM (OXM CSC file, will wipe your phone)
HOME_CSC_OXM (OXM CSC file, will NOT wipe your phone)
3) Add each file to it's respective field in Odin v3.13.1. Use CSC_OXM if you want to do a clean flash and HOME_CSC OXM if you want to keep your apps and data.
4) Reboot your phone in Download / Odin mode:
-Power off your Galaxy S10/S10+
-Connect the cable to your PC, but do not plug it into your phone yet
-Hold Volume Down + Bixby button and plug the Type C cable into your phone while holding down those buttons
-You will get a warning on your screen, press 'Continue'
5) Once in download mode, Odin should detect your device and a blue box will show up with the COM port number.
6) Do NOT tick any extra boxes. The only options to be ticked are F.Reset Time and Auto-Reboot and they are enabled by default.
7) Click the start button, wait for Odin to say 'PASS'. Once the flash is complete, your phone will reboot automatically.
Flashing Tips:
1) Always try to use the OEM Samsung USB-C cable when flashing.
2) Install Samsung Smart Switch before flashing, it automatically installs the latest Samsung USB drivers. However, make sure Smart Switch is CLOSED when you are flashing your device with Odin.
3) Try not to have too many other applications running if you have a PC with low RAM as Odin can consume a lot of memory sometimes, and the last thing you need is for your PC to freeze in the middle of a flash.
This is what a successful flash log on Odin looks like for an S10+ ----> Pastebin Link
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Before asking a question below, read the FAQs, your question has most probably already been answered.
Q1) Will this trip KNOX, and will I lose my warranty?
Short answer: No
Detailed answer: KNOX counter will remain at 0x0 and warranty stays valid as well.
However, some service centers might note regional differences between builds based on the latest build available for your CSC, indicating that the phone has been flashed, so if you're sending your device in for a service/repair/replacement, then I'd suggest flashing to the latest build available for your home country's CSC. Usually not required though, so not a big deal.
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Q2) What if the firmware build number mentioned above is not available for my CSC, can I still flash it?
Short answer: Yes, but that is subject to your current active CSC. Read detailed answer below.
Detailed answer: See this list --- > LINK
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Q3) I flashed 'ASxx' build, but now I can't get OTAs for a newer build that's available on my CSC?
Short answer: The build you are currently running on your device was never released for your CSC, so no subsequent OTA file is available on the server.
Detailed answer: This is due to Samsung's stupid update rollout methods. Go to SamMobile, select SM-G975F and find your region in the list, and flash whatever the latest build is to regain the ability to receive OTAs.
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Q4) Can I flash the ROM in the main post without flashing the builds that came before it?
Short answer: Yes.
Detailed answer: The firmwares available for download using SamFirm or Frija are full firmware files. Flashing them will manually flash (and update, if necessary) every partition on your phone. So you could be on the oldest firmware ever released for the S10+, and flash directly to the latest one without having to flash any builds released in between.
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Q5) Can I flash without wiping my data?
Short answer: Yes.
Detailed answer: If you've gotten to this question, you clearly haven't read the Odin flashing instructions.
If you want to flash and retain all the data on your phone, you can choose to use the HOME_CSC file when flashing. This will only upgrade your phone to the newer firmware, but allow you to keep all your data.
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Q6) I am on a carrier firmware, can I flash this firmware?
Short answer: Yes, but all your data will be erased.
Detailed answer: If you are on a carrier firmware that is not part of the OXM multi-CSC list given in the answer for Q2, then you can still flash OXM firmwares, but you will not have the option of using the HOME_CSC file to retain your data. You must wipe your data when switching from a carrier firmware to an unbranded firmware. Once you are on the unbranded OXM firmware, you can use HOME_CSC to upgrade without wiping data.
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Q7) If I flash AUT region firmware on my DBT device, will it affect my ability to get OTA updates?
Short answer: Maybe, maybe not.
Detailed answer: Read the answer of Q3.
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Q8) Is there any risk of flashing?
Short answer:No, not really.
Detailed answer: If you are not experienced with flashing but would still like to flash your phone, make sure to be very very careful and don't miss any steps in the process. There is usually no risk, and it is very hard to permanently brick your device when flashing stock ROMs. There is a chance of data loss if the flash is interrupted.
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Q9) Why does the window says 'FAIL' instead of PASS?
Short answer: Could be for multiple reasons, see detailed answer.
Detailed answer: If a flash fails, always make sure to copy and paste your Odin log here so we can see where and why the flash failed.
The Odin flash log can be seen on the bottom left of the Odin window, see this screenshot ---> Odin 3.13.1 screenshot
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Q10) Why does the Odin log show that the flash failed at sboot.bin.lz4?
Short answer: The version of your Odin is not compatible with newer firmwares that use lz4 compression.
Detailed answer: Samsung started using .lz4 compression with Oreo firmwares, so older versions of Odin can't be used.
Use Odin v3.13.1 (Download link) for flashing on the S10+.
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Q11) Why does the Odin flash log show FAIL (XmitDataWrite)?
Short answer: There was an issue flashing the AP (System) file to your device. Read detailed answer on how to solve.
Detailed answer: This is usually due to an issue with the USB port or the cable being used to flash the device. If you are using a USB 3.0 port on your PC / laptop, try switching to a USB 2.0 port instead. If you don't have a USB 2.0 port available, change the cable. Some cables don't handle large file transfers well. Preferably use the OEM Samsung cable that you got in the box of your phone.
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Q12) Where can I download the latest S10+ (SM-G975F) firmwares?
Answer: You can use Frija which downloads the firmwares straight from Samsung servers - Link
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Q13) What do the CSCs in the settings menu mean?
Answer: See below.
Single SIM device:
If you have a Single SIM device, it will show 3 CSCs in the settings menu, in the following format:
DBT/DBT/DBT
1st CSC = active CSC (You will get OTAs for this CSC and any features like Samsung Pay, VoLTE, WiFi calling are dependent on the active CSC)
2nd CSC = CSC of your SIM card (In case your SIM card is from a different region than your active CSC, this will be different from the active CSC)
3rd CSC = Hardware CSC of your device (For example, you purchased the device in Germany, but are living in the Netherlands, it will show PHN/PHN/DBT)
It is not possible to change the hardware CSC, and it has 0 effect on the device's functionality or when it will get OTA updates. It is simply an indicator for what market the device was intended for sale in.
Dual SIM device:
If you have a Dual SIM device, it will show 4 CSCs in the settings menu, in the following format:
DBT/DBT,DBT/DBT
1st CSC = active CSC (You will get OTAs for this CSC and any features like Samsung Pay, VoLTE, WiFi calling are dependent on the active CSC)
2nd CSC = CSC of your SIM card (In case your SIM card is from a different region than your active CSC, this will be different from the active CSC)
3rd CSC = CSC of your SIM card in SIM slot 2
4th CSC = Hardware CSC of your device (For example, you purchased the device in Germany, but are living in the Netherlands, it will show PHN/PHN,PHN/DBT)
It is not possible to change the hardware CSC, and it has 0 effect on the device's functionality or when it will get OTA updates. It is simply an indicator for what market the device was intended for sale in.
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Q14) Why did my CSC change to XEF (France) after flashing from a carrier ROM to the unlocked ROM?
Answer: For OXM firmwares on the S10 series, when flashing from a non-OXM ROM (such as a carrier ROM) to an OXM multi-CSC ROM, the active CSC defaults to XEF.
Detailed answer: For devices that are region locked, once you flash from carrier to unlocked, it will stay on XEF. There is no way to change CSC yet without root.
For devices that are not region locked, it will change to XEF, but to switch to the unlocked CSC for your region, remove your SIM card, insert it again and do a factory reset from the settings menu.
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Q15) Can I downgrade to an older build?
Answer: It depends on your current build. Sometimes you can downgrade, sometimes you can not. Read detailed answer to check.
Detailed answer:
You have to see the bootloader version of your current build. Samsung tends to upgrade bootloader versions regularly so downgrading is not always possible.
For example if your current build is G975FXXU3ASG8, and you want to downgrade to G975FXXU2ASF3, it will not be possible.
Moving from 'XXU3' to 'XXU2' is not possible since XXU2 is an older bootloader version, and because of Samsung's downgrade protection, it will not allow the older version to be flashed.
When attempting to flash, Odin will show 'FAIL' in the flash window, and the bootloader screen on your device will display this error:
SW REV CHECK FAIL(BOOTLOADER) DEVICE: 3, BINARY: 2
This is showing that the device is currently on a v3 build, and the build being flashed is v2, so it will reject the file and abort the flash immediately.
If however you want to downgrade from G975FXXU3ASG8 to G975FXXU3ASG2, you are free to do so, since both builds are labeled 'XXU3' and are on the same bootloader version (i.e: v3).
Note: Some builds will be labeled 'XXS', and the same reasoning applies to those builds as well. If the bootloader version is different, you can not downgrade.
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Q16) Why are some builds labeled 'XXU', whereas some builds are labeled 'XXS'?
Answer:
XXU builds are usually larger updates, they usually include security patches, kernel changes and other under the hood fixes. When new features are added, they are also usually shipped with 'XXU' builds.
XXS builds are maintenance releases. They just include security patches and nothing more. OTA sizes for XXS builds are usually significantly smaller as well. In some cases, exceptions can be made and new kernels can be included with XXS builds as well.
These changes are usually discussed in the stock firmware thread for the device.
For newly released devices in the first 6-8 months, almost all builds are XXU since Samsung is actively working on improving the device.
For devices nearing EOL, Samsung is only fulfilling its obligation to provide security patches and no new features, so most builds are XXS.
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First! Just installed ASE7 (AUT) over ASE6 (BTU) using HOME_CSC (I was already on BTU). Very nice it is like real OTA because bloatware wasn't installed. Phone working...
additional info: My S10 (not +) was branded in Czech T-Mobile TMZ/TMZ,TMZ/TMZ now is BTU/BTU,BTU/TMZ and all is good. Still obserwing stuff around Samsung

Flashing for dummies guide is very useful. Thanks

To keep root when flashing new firmware, you patch the AP file in Magisk then use that patched .tar file in the AP slot in odin, right?

vibrantliker said:
To keep root when flashing new firmware, you patch the AP file in Magisk then use that patched .tar file in the AP slot in odin, right?
Click to expand...
Click to collapse
I haven't rooted my phone, but have read about it, and yes that seems to be the way to go about it.
Lots of people complaining that they have to patch the entire 5 GB AP file.

The list of CSCs included in the OXM multi-CSC has now been updated for the Galaxy S10/S10+.
Link is in the main post, and here as well:
https://drive.google.com/open?id=1PPPo1DhdVAIJDha6kEmIDE4UxyxtEsBHqONlE81QvEc

Hi there,
My OPS (OPTUS) Is a multi CSC carrier but since I do not longer use it in Australia but rather in South America,I would like to change my CSC to perhaps DBT so I can get the latest OTA updates.
Is it possible to change my CSC?
I use the Claro SIM here and I have successfully updated the AS7 firmware.
Thanks.

Cancerbero04 said:
Hi there,
My OPS (OPTUS) Is a multi CSC carrier but since I do not longer use it in Australia but rather in South America,I would like to change my CSC to perhaps DBT so I can get the latest OTA updates.
Is it possible to change my CSC?
I use the Claro SIM here and I have successfully updated the AS7 firmware.
Thanks.
Click to expand...
Click to collapse
Your device seems to be region locked to OPS which is why it isn't offering automatic CSC change.
I need to experiment with the complicated CSC change method on my own S10+ first and then I'll post it here.

My S10+ has the active CSC code as TTT, the device doesn't receive OTA software updates and I notice your listing has TTT as N/A, would this be why I haven't received the OTA updates? I've flashed the latest ones manually. I've tried to change the CSC by flashing XEF, BTU, SKR, TPA and EON as I'm from Trinidad, but nothing has changed the CSC, all my other Samsung devices, including my other S10+ has the active CSC as TPA and they receive updates. All are unlocked and have sims from the same carrier. Any ideas as to how to change it to get OTA updates?

Gdefreitas said:
My S10+ has the active CSC code as TTT, the device doesn't receive OTA software updates and I notice your listing has TTT as N/A, would this be why I haven't received the OTA updates? I've flashed the latest ones manually. I've tried to change the CSC by flashing XEF, BTU, SKR, TPA and EON as I'm from Trinidad, but nothing has changed the CSC, all my other Samsung devices, including my other S10+ has the active CSC as TPA and they receive updates. All are unlocked and have sims from the same carrier. Any ideas as to how to change it to get OTA updates?
Click to expand...
Click to collapse
Did you buy the device from a carrier, or unlocked?
I've got TTT listed as N/A since I wasn't aware which country / carrier it belonged to.

MeltdownSpectre said:
Did you buy the device from a carrier, or unlocked?
I've got TTT listed as N/A since I wasn't aware which country / carrier it belonged to.
Click to expand...
Click to collapse
It's an unlocked device that's purchased from a retailer, I'm not sure where their supplier is located, my guess would be Panama. TTT is Trinidad and Tobago, I'm from Trinidad, but instead of my device CSC being TPA like the other devices that gets the update, mine is TTT/TTT, TTT/TPA. I just would like to change it to TPA to be able to get updates, or even EON which is the CSC for firmwares for Trinidad.

Gdefreitas said:
It's an unlocked device that's purchased from a retailer, I'm not sure where their supplier is located, my guess would be Panama. TTT is Trinidad and Tobago, I'm from Trinidad, but instead of my device CSC being TPA like the other devices that gets the update, mine is TTT/TTT, TTT/TPA. I just would like to change it to TPA to be able to get updates, or even EON which is the CSC for firmwares for Trinidad.
Click to expand...
Click to collapse
What carrier are you using in Trinidad?
Maybe TTT is for a specific carrier, and since that's part of OXM, your phone automatically selects that CSC.
Although it is very weird that the FOTA server doesn't list any OTAs for TTT, which means you'll have to flash every update manually.

MeltdownSpectre said:
What carrier are you using in Trinidad?
Maybe TTT is for a specific carrier, and since that's part of OXM, your phone automatically selects that CSC.
Although it is very weird that the FOTA server doesn't list any OTAs for TTT, which means you'll have to flash every update manually.
Click to expand...
Click to collapse
I'm using Bmobile, which is the carrier all my other devices use as well, and they show the CSC as TPA, so they receive the updates. Their is no TTT firmware for the S10+, but there is for the S10. I assumed that would mean no firmware updates, and I only received one, but that was when I now purchased the phone, after that I had to factory reset the phone and since then, I haven't gotten any OTAs. Is there anyway to change the CSC to TPA? I've tried flashing the other firmwares, the BTU, XEF, SKR, but none of them changed the CSC from TTT. Any suggestions?

Gdefreitas said:
I'm using Bmobile, which is the carrier all my other devices use as well, and they show the CSC as TPA, so they receive the updates. Their is no TTT firmware for the S10+, but there is for the S10. I assumed that would mean no firmware updates, and I only received one, but that was when I now purchased the phone, after that I had to factory reset the phone and since then, I haven't gotten any OTAs. Is there anyway to change the CSC to TPA? I've tried flashing the other firmwares, the BTU, XEF, SKR, but none of them changed the CSC from TTT. Any suggestions?
Click to expand...
Click to collapse
Can you try swapping the SIM card from another phone of yours to the S10+?
After inserting the SIM card, restart the phone and check what it shows under settings > about > software information > service provider SW Ver.

MeltdownSpectre said:
Can you try swapping the SIM card from another phone of yours to the S10+?
After inserting the SIM card, restart the phone and check what it shows under settings > about > software information > service provider SW Ver.
Click to expand...
Click to collapse
I've tried that, even tried from the other carrier available in my country, but it still doesn't change. It remains as TTT. It's the dual sim version, although I've never even inserted a second sim into it, that slot shows TTT as well.

MeltdownSpectre said:
Can you try swapping the SIM card from another phone of yours to the S10+?
After inserting the SIM card, restart the phone and check what it shows under settings > about > software information > service provider SW Ver.
Click to expand...
Click to collapse
I saw another one of your posts where it mentioned using RealTerm to change the CSC, can this be used with my device, and if so, how do I go about doing it? Thanks for any assistance you may be able to render.

Gdefreitas said:
I saw another one of your posts where it mentioned using RealTerm to change the CSC, can this be used with my device, and if so, how do I go about doing it? Thanks for any assistance you may be able to render.
Click to expand...
Click to collapse
In theory the RealTerm method should work just fine. All you'll need is a combination / factory binary file for the G975F. The rest of the tutorial should work the same way.
I think I have the file, I'll check and upload it later today.

MeltdownSpectre said:
In theory the RealTerm method should work just fine. All you'll need is a combination / factory binary file for the G975F. The rest of the tutorial should work the same way.
I think I have the file, I'll check and upload it later today.
Click to expand...
Click to collapse
OK, thanks a lot, I'll give it a try. Just for the sake of knowing, could you explain what exactly the combination file is, and does it work on any software version of the device, or is it firmware specific? In other words, will it work on the ASE7 build that I'm presently on? Also, will I continue to get OTA updates after switching the CSC this way?

Gdefreitas said:
OK, thanks a lot, I'll give it a try. Just for the sake of knowing, could you explain what exactly the combination file is, and does it work on any software version of the device, or is it firmware specific? In other words, will it work on the ASE7 build that I'm presently on? Also, will I continue to get OTA updates after switching the CSC this way?
Click to expand...
Click to collapse
Combination or factory binary is the file used in Samsung factories and service centers to program phones before sale or return to the customer.
It does work as long as the Bootloader revision is the same. If you are on the May update or older, it will work just fine.
You flash it with Odin like you would a normal ROM, and it will boot up with very limited functionality. Then follow the RealTerm tutorial and set the CSC to whatever you'd like.
If it's TPA, then once you're done changing the CSC, flash your device to the ASE7 May build and let it boot up, go through the setup wizard and it should say TPA/TPA,TPA/TPA.
Once you've confirmed that TPA is the active CSC, then you're good to go. Everything will work normally and you will get OTA updates as well.
I'm uploading the factory binary now, but since I don't recommend publicly posting the link, I'll PM it to you once it's done.

Hey guys, sorry if this has been asked and answered a thousand times but I'm a bit paranoid after doing the research and as this is a my new phone I don't want to do anything wrong.
I bought a carrier locked S10+ with MOB CSC, A1 carrier in Austria. The phone is now carrier unlocked and on latest MOB firmware which is May 1. sec. lvl. I want to flash the lastest released MULTI-CSC G975FXXU2ASF3 firmware from the firmware thread. As the phone is new and I didn't even set it up I planned to flash with CSC_OXM. From my understanding the phone will change to the SIMs CSC after the flash. Am I correct?
Am I able to do this as planned or is it not possible to flash MULTI-CSC over my MOB-CSC? Will I be able to receive OTA updates or do I need to flash everytime with ODIN after CSC change? Thanks in advance!

Stuck on September 2020 AT&T Security update on my S20 FE 5G.

According to this page on AT&T's website my security patch on my S20 FE 5G should be for December and for Android 11 but mine is at September. I got my phone in early November. This is a screenshot showing the September patch.
Whats going on?
EDIT: I don't know if its supposed to work this way, but when I go to Software Update and then Check for Update. There's no screen saying "checking for updates" or anything. It goes immediately to the "Current software is up to date" screen.
Uhh, no it isn't up to date.
I finally got fed up and did a full factory reset of the phone, also went to an AT&T store and got a new SIM card. Started completely from scratch. I go to check for updates, and I get "Your current software is up to date. No it isn't. I should have Android 11 by now. Does AT&T's firmware only let you check for updates once every 24 hours or something? I need these updates, they're security patches made for a reason.
How do I fix this?

I have the same problem and I don't know what to do, the phone does not update

For the US branded model you can download the firmware from Frija. Use SM-G781U for the model and USC as CSC (latest firmware available is G781USQU1CTLD). All the branded firmware are the same and the CSC will be loaded automatically based on your SIM card (I suppose ATT). You can flash the firmware using Odin (I have used v3.14.1_3B_PatcheD). Select the correct files for BL, AP, CP. For CSC use the HOME_CSC file if you want to keep you data. Leave USERDATA blank. After flashing the firmware, do a wipe cache partition from recovery mode and you will have Android 11.
Of course do it at your own risk. You can also follow this guide below:
Update/Flash/Unbrick your device via Odin
Hello everyone! I made a tutorial regarding flashing the latest update when not available in your region: Video tutorial: Steps: 1. Download and extract both Frija and Odin. 2. Launch Frija. 3. Check the "Auto" button. Write your device's...
forum.xda-developers.com

...........

raptor1983 said:
For the US branded model you can download the firmware from Frija. Use SM-G781U for the model and USC as CSC (latest firmware available is G781USQU1CTLD). All the branded firmware are the same and the CSC will be loaded automatically based on your SIM card (I suppose ATT). You can flash the firmware using Odin (I have used v3.14.1_3B_PatcheD). Select the correct files for BL, AP, CP. For CSC use the HOME_CSC file if you want to keep you data. Leave USERDATA blank. After flashing the firmware, do a wipe cache partition from recovery mode and you will have Android 11.
Of course do it at your own risk. You can also follow this guide below:
Update/Flash/Unbrick your device via Odin
Hello everyone! I made a tutorial regarding flashing the latest update when not available in your region: Video tutorial: Steps: 1. Download and extract both Frija and Odin. 2. Launch Frija. 3. Check the "Auto" button. Write your device's...
forum.xda-developers.com
Click to expand...
Click to collapse
Followed this to get to the last update for Android 10 for the S20 FE. I'm going to go to a uBreakiFix to see where they'd get it to as far as Android 11. The USC firmware for Android 11 that samfw has for doesn't match the firmware for ATT. The last 4 of the firmware name. Is it an issue if an ATT S20 FE would be on the USC CTLD instead of ATT CTL9? Or TMB CUAA instead of ATT CUA9?

raptor1983 said:
For the US branded model you can download the firmware from Frija. Use SM-G781U for the model and USC as CSC (latest firmware available is G781USQU1CTLD). All the branded firmware are the same and the CSC will be loaded automatically based on your SIM card (I suppose ATT). You can flash the firmware using Odin (I have used v3.14.1_3B_PatcheD). Select the correct files for BL, AP, CP. For CSC use the HOME_CSC file if you want to keep you data. Leave USERDATA blank. After flashing the firmware, do a wipe cache partition from recovery mode and you will have Android 11.
Of course do it at your own risk. You can also follow this guide below:
Update/Flash/Unbrick your device via Odin
Hello everyone! I made a tutorial regarding flashing the latest update when not available in your region: Video tutorial: Steps: 1. Download and extract both Frija and Odin. 2. Launch Frija. 3. Check the "Auto" button. Write your device's...
forum.xda-developers.com
Click to expand...
Click to collapse
I have the bootloader locked, I can't do it with odin

squallsensei said:
I have the bootloader locked, I can't do it with odin
Click to expand...
Click to collapse
Can you get into Download mode?

steveo314 said:
Can you get into Download mode?
Click to expand...
Click to collapse
I get something similar to that instead of the "download mode"
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}

steveo314 said:
Followed this to get to the last update for Android 10 for the S20 FE. I'm going to go to a uBreakiFix to see where they'd get it to as far as Android 11. The USC firmware for Android 11 that samfw has for doesn't match the firmware for ATT. The last 4 of the firmware name. Is it an issue if an ATT S20 FE would be on the USC CTLD instead of ATT CTL9? Or TMB CUAA instead of ATT CUA9?
Click to expand...
Click to collapse
I've used the CTLD for a couple of days with no issues (and no notification for further updates). Btw, I own an unbranded G781U1 and was using the ATT G781U branded firmware to get the Wi-Fi calling work. Now I'm back to unbranded firmware XAA because Wi-Fi calling is working on Android 11 unbranded.

squallsensei said:
I get something similar to that instead of the "download mode"View attachment 5208189
Click to expand...
Click to collapse
How do you get into download mode? Have you tried the following:
Unplug the USB cable.
Switch off your smartphone.
Hold down Volume Down and Volume Up and connect the device with PC by using Type-C USB cable

raptor1983 said:
I've used the CTLD for a couple of days with no issues (and no notification for further updates). Btw, I own an unbranded G781U1 and was using the ATT G781U branded firmware to get the Wi-Fi calling work. Now I'm back to unbranded firmware XAA because Wi-Fi calling is working on Android 11 unbranded.
Click to expand...
Click to collapse
CTL(D) was the first Android 11 update for the US S20 FE. CUA(A) is the second update. I find it curious that ATT makes the unlocked firmware available through the firmware repos but not the locked version.

raptor1983 said:
How do you get into download mode? Have you tried the following:
Unplug the USB cable.
Switch off your smartphone.
Hold down Volume Down and Volume Up and connect the device with PC by using Type-C USB cable
Click to expand...
Click to collapse
You are great!! Thanks

raptor1983 said:
D for a couple of days with no issues (and
Click to expand...
Click to collapse
raptor1983 said:
I've used the CTLD for a couple of days with no issues (and no notification for further updates). Btw, I own an unbranded G781U1 and was using the ATT G781U branded firmware to get the Wi-Fi calling work. Now I'm back to unbranded firmware XAA because Wi-Fi calling is working on Android 11 unbranded.
Click to expand...
Click to collapse
Im trying to get my unlocked G781U (ATT) device to run U1 software in order to use wifi calling. Im having no luck. Can you elaborate what you did? I used patched Odin to flash U1 and Im not getting the option. Im using FirstNet by the way, in case it matters.

lokofly said:
Im trying to get my unlocked G781U (ATT) device to run U1 software in order to use wifi calling. Im having no luck. Can you elaborate what you did? I used patched Odin to flash U1 and Im not getting the option. Im using FirstNet by the way, in case it matters.
Click to expand...
Click to collapse
Which firmware are you on right now?

raptor1983 said:
Which firmware are you on right now?
Click to expand...
Click to collapse
This morning I flashed DUC1 for USC. I believe the issue is with the carrier sim. When I inserted my FirstNet the wifi calling wasn't available. I switched over to a Ting sim (T-Mobile MVNO), and wifi calling automatically appeared. I'm not sure if I need an orange ATT sim in order to activate wifi calling with XAA or USC firmware. Looks like FirstNet sim will only activate wifi calling with ATT firmware.

just a little info about our firmware...... All carrier variant sm-781U AP BL CP CSC and HOME are identical..... the difference is the USER DATA file which has all the carrier bloat and carrier specific stuff so you can use any of the
SPR
United States
TMB
United States
TMK
United States
USC
United States
XAS
obviously if you have a carrier locked sim carrier locked options wont work.... now if you have unlocked phone and flash the SM-781U1 XAA which you can also flash to a locked phone because the files are exactly the same... no warranty trip knox or whatever..... on the unlocked firmware the actual sim card u are using triggers the carrier provising and loads splash screen and carrier crap.....so if u have a different sim card and want att wifi flash unlocked firmware sm-781U1 XAA all four files.... then go back and flash ONLY the USERDATA from the sm-781U....
will not carrier unlock or unlock bootloader and if you updated to oneUI 3.1 no bootloader unlock available even with the paid method... I did it today on April 1 security patch links above... now my next adventure is running root from Termux with locked bootloader un rooted......
ALSO USC is AT&T

and i also successfully bypassed FRP lock with one of the new methods that has 1000 different ways and varients.... if anyone needs to know about the easiest FRP procedure PM me please

sjvirchow said:
According ... ... (omitted those lines in order to look cleaner)
Click to expand...
Click to collapse
Brother, could you please tell me which software version you are currently on? I have bought AT&T version SM-G781U, and haven't received any update, currently One UI version 2.5 and android 10, My baseband version is : G781USQU1ATK1 (what's yours ? is it same in yours one too? ) Android Security Patch Level is : November 01, 2020.
but s20 fe 5g is on android 11 and oneui 3.1, why am I not getting update?

Question [S901W] Flashed incorrect ROM via Odin | stuck in download mode

Got a new S901W S22 (Canada TELUS). I was trying to flash non-carrier generic OEM ROM via Odin v3.14.1_3B Patched. I made a mistake and flashed S901U1 XAA instead of S901W XAC. The XAA version has bootloader version 2, while XAC still has 1. Now I cannot flash the correct ROM because we cannot downgrade the bootloader. So I am stuck in Download mode:
{
"lightbox_close": "Close",
"lightbox_next": "Next",
"lightbox_previous": "Previous",
"lightbox_error": "The requested content cannot be loaded. Please try again later.",
"lightbox_start_slideshow": "Start slideshow",
"lightbox_stop_slideshow": "Stop slideshow",
"lightbox_full_screen": "Full screen",
"lightbox_thumbnails": "Thumbnails",
"lightbox_download": "Download",
"lightbox_share": "Share",
"lightbox_zoom": "Zoom",
"lightbox_new_window": "New window",
"lightbox_toggle_sidebar": "Toggle sidebar"
}
When I try t flash the correct XAC version it says:
sw rev check fail fused 2 binary 1
Click to expand...
Click to collapse
Few questions:
Is there ANY way I can downgrade the bootloader and flash the XAC ROM now? Or do I need to wait for XAC with v2 bootloader to release, which is going to be a few weeks I assume, given that it was released in US on May 5, 2022 and few other countries on May 8.
In case I want to wait for XAC with v2 bootloader, how do I turn off the device? There's only a reboot option no shut down.
Can the phone be charged in Download mode? I started with 100% battery, but ofcourse now it does not show battery % and I am unable to shut down the phone - worried if I'll drain the battery
Summary:
Phone: S22 S901W TELUS
Flashed ROM (Attempt#1): Samfw.com_SM-S901U1_XAA_S901U1UEU2AVDC_fac
Flashed ROM (Attempt#2): Samfw.com_SM-S901W_XAC_S901WVLU1AVCJ_fac
UPDATE 1: Looks like the phone switched off on it's own after about 30mins of no activity when unplugged. Now waiting for XAC bootloader v2 ROM

Your only solution is to wait until S901W has bit 2 ROM. You cannot downgrade bootloader version.

nguyenlucky said:
Your only solution is to wait until S901W has bit 2 ROM. You cannot downgrade bootloader version.
Click to expand...
Click to collapse
Yeah, I believe that's my only option. what about battery though? does it charge in download mode? or any way I can turn it off?
UPDATE 1: Looks like the phone switched off on it's own after about 30mins of no activity when unplugged. Now waiting for XAC bootloader v2 ROM

bikerabhinav said:
Yeah, I believe that's my only option. what about battery though? does it charge in download mode? or any way I can turn it off?
UPDATE 1: Looks like the phone switched off on it's own after about 30mins of no activity when unplugged. Now waiting for XAC bootloader v2 ROM
Click to expand...
Click to collapse
Beware, as in some rare cases, Samsung does not increase the bit at all.
For example, my S20 Korean version (G981N) is still on bit 1 despite having 2 Android updates.

nguyenlucky said:
Beware, as in some rare cases, Samsung does not increase the bit at all.
Click to expand...
Click to collapse
Damn, that's scary. I checked data for S20 and looks like US version (XAS) got bit 2 on Apr 29, 2021 and Canada (XAC) got it on Apr 30, 2021. That gives me hope but fingers crossed!
Not sure why they left Korea out but maybe because Exynos CPU has different releases?
Don't want to haggle with carrier and ask for replacement just yet. I'll wait for a week or two

I am at this point searching for some obvious plan.
iMessageapp

bikerabhinav said:
Damn, that's scary. I checked data for S20 and looks like US version (XAS) got bit 2 on Apr 29, 2021 and Canada (XAC) got it on Apr 30, 2021. That gives me hope but fingers crossed!
Not sure why they left Korea out but maybe because Exynos CPU has different releases?
Don't want to haggle with carrier and ask for replacement just yet. I'll wait for a week or two
Click to expand...
Click to collapse
S20 and Note 20 series in Korea have S865 though, and both are still on bit 1 with latest firmware
Not sure what Samsung is thinking

bikerabhinav said:
Got a new S901W S22 (Canada TELUS). I was trying to flash non-carrier generic OEM ROM via Odin v3.14.1_3B Patched. I made a mistake and flashed S901U1 XAA instead of S901W XAC. The XAA version has bootloader version 2, while XAC still has 1. Now I cannot flash the correct ROM because we cannot downgrade the bootloader. So I am stuck in Download mode:
View attachment 5615335
When I try t flash the correct XAC version it says:
Few questions:
Is there ANY way I can downgrade the bootloader and flash the XAC ROM now? Or do I need to wait for XAC with v2 bootloader to release, which is going to be a few weeks I assume, given that it was released in US on May 5, 2022 and few other countries on May 8.
In case I want to wait for XAC with v2 bootloader, how do I turn off the device? There's only a reboot option no shut down.
Can the phone be charged in Download mode? I started with 100% battery, but ofcourse now it does not show battery % and I am unable to shut down the phone - worried if I'll drain the battery
Summary:
Phone: S22 S901W TELUS
Flashed ROM (Attempt#1): Samfw.com_SM-S901U1_XAA_S901U1UEU2AVDC_fac
Flashed ROM (Attempt#2): Samfw.com_SM-S901W_XAC_S901WVLU1AVCJ_fac
UPDATE 1: Looks like the phone switched off on it's own after about 30mins of no activity when unplugged. Now waiting for XAC bootloader v2 ROM
Click to expand...
Click to collapse
happened to me earlier, just reflash the right firmware using odin, hold all 3 buttons until it boots to the "installation failed" screen and reflash
edit, mis read the post...... i on the s22 and my flash failed, stuck on download installation failed screen, no key combination would take me out of it, i just unplugged, replugged,, reset odin, and flashed again (s22u), and all was well

bikerabhinav said:
Got a new S901W S22 (Canada TELUS). I was trying to flash non-carrier generic OEM ROM via Odin v3.14.1_3B Patched. I made a mistake and flashed S901U1 XAA instead of S901W XAC. The XAA version has bootloader version 2, while XAC still has 1. Now I cannot flash the correct ROM because we cannot downgrade the bootloader. So I am stuck in Download mode:
View attachment 5615335
When I try t flash the correct XAC version it says:
Few questions:
Is there ANY way I can downgrade the bootloader and flash the XAC ROM now? Or do I need to wait for XAC with v2 bootloader to release, which is going to be a few weeks I assume, given that it was released in US on May 5, 2022 and few other countries on May 8.
In case I want to wait for XAC with v2 bootloader, how do I turn off the device? There's only a reboot option no shut down.
Can the phone be charged in Download mode? I started with 100% battery, but ofcourse now it does not show battery % and I am unable to shut down the phone - worried if I'll drain the battery
Summary:
Phone: S22 S901W TELUS
Flashed ROM (Attempt#1): Samfw.com_SM-S901U1_XAA_S901U1UEU2AVDC_fac
Flashed ROM (Attempt#2): Samfw.com_SM-S901W_XAC_S901WVLU1AVCJ_fac
UPDATE 1: Looks like the phone switched off on it's own after about 30mins of no activity when unplugged. Now waiting for XAC bootloader v2 ROM
Click to expand...
Click to collapse
How did you manage to unlock the bootloader ?? My s22 is from virgin in canada and i can't unlock it.

MegaJuif said:
How did you manage to unlock the bootloader ?? My s22 is from virgin in canada and i can't unlock it.
Click to expand...
Click to collapse
I didn't unlock bootloader. You can flash official firmwares without unlocking bootloader, and yes, you cannot unlock/root any SnapDragon Samsung devices, most of which are sold in US/Canada. Exynos models can be unlocked/root

bikerabhinav said:
I didn't unlock bootloader. You can flash official firmwares without unlocking bootloader, and yes, you cannot unlock/root any SnapDragon Samsung devices, most of which are sold in US/Canada. Exynos models can be unlocked/root
Click to expand...
Click to collapse
i'm very upset i can't root my phone.. why only us can't unlock bootloader lol

MegaJuif said:
i'm very upset i can't root my phone.. why only us can't unlock bootloader lol
Click to expand...
Click to collapse
[OFF TOPIC] I learnt that the hard way with my last phone (S10 US version) but I don't see much value in rooting anymore. Things were different 4-5 years ago, but now I am okay with a stock phone, just need a debloated non-carrier specific ROM.

New firmware just released for XAC with v2 bootloader. Downloading via samloader. Hopefully this fixes the phone!
S901WVLU2AVDC / S901WOYV2AVDC / S901WVLU2AVDC
Click to expand...
Click to collapse
Alright, we're back in business! Phone is working now.
However, I still see carrier crap installed and all my files intact (Im okay with full wipe). Is it because I used HOME_CSC instead of CSC? Should I just flash again using CSC this time?

bikerabhinav said:
New firmware just released for XAC with v2 bootloader. Downloading via samloader. Hopefully this fixes the phone!
Alright, we're back in business! Phone is working now.
However, I still see carrier crap installed and all my files intact (Im okay with full wipe). Is it because I used HOME_CSC instead of CSC? Should I just flash again using CSC this time?
View attachment 5616211
Click to expand...
Click to collapse
u would need to flash a non carrier (unlocked) csc but you would lose your settings, back up via smart switch to ext usb, google back up, and samsung back first

gav83collins said:
u would need to flash a non carrier (unlocked) csc but you would lose your settings, back up via smart switch to ext usb, google back up, and samsung back first
Click to expand...
Click to collapse
It's a new phone, there's nothing to backup. I'll flash XAC CSC tomorrow and see if that helps. Thank you

bikerabhinav said:
It's a new phone, there's nothing to backup. I'll flash XA
Click to expand...
Click to collapse
if 5g is important to you, check to see if that csc supports the bands for your chosen carrier

gav83collins said:
if 5g is important to you, check to see if that csc supports the bands for your chosen carrier
Click to expand...
Click to collapse
How can I check that? This is the version that I'll be flashing S901WVLU2AVDC

bikerabhinav said:
How can I check that? This is the version that I'll be flashing S901WVLU2AVDC
Click to expand...
Click to collapse
https://www.kimovil.com/en/frequency-checker/US/samsung-galaxy-s22-ultra check here changing to your country and desired carrier,

Hi, flashed the correct firmware via odin and my phone S22 G901U won't boot to either normal, recovery or download mode. Tried force restarting endless and no change. Any suggestions?

bikerabhinav said:
New firmware just released for XAC with v2 bootloader. Downloading via samloader. Hopefully this fixes the phone!
Alright, we're back in business! Phone is working now.
However, I still see carrier crap installed and all my files intact (Im okay with full wipe). Is it because I used HOME_CSC instead of CSC? Should I just flash again using CSC this time?
View attachment 5616211
Click to expand...
Click to collapse
go to samfw and from there download the latest android 13 rom S901WVLU2BVKI im using that and remember to flash csc not csc_home im using this rom on my s901u carrier locked by att

Question A52s Carrier Bloatware / Clean FIRMWARE

I've been messing around with few firmwares out there but none are unbranded, so I'm here asking for a solution to get rid of annoying unnecesary bloatware, no rooting if it's possible. Maybe someone already have found a good unbranded firmware that I can use to flash my A52s? Thanks.

Samsung nowadays uses multi CSC packs (OMC), so it's most likely you've been flashing the same firmware over and over. You need to de-brand your phone by changing your CSC, you can use SamFw since it doesn't requires root and will not blow your warranty bit

BlackMesa123 said:
Samsung nowadays uses multi CSC packs (OMC), so it's most likely you've been flashing the same firmware over and over. You need to de-brand your phone by changing your CSC, you can use SamFw since it doesn't requires root and will not blow your warranty bit
Click to expand...
Click to collapse
Stuck in Latinamerica, and my CSC code is OWO, I believe that ain't multi, tried the UUSD code on Samsung and Google phone apps but not working. I checked every CSC so I don't end up flashing unnecesarily. I'm gonna flash some nordic firm that I read is unbranded, wish me luck, hope I don't end up with a brick.

ekam95 said:
Stuck in Latinamerica, and my CSC code is OWO, I believe that ain't multi, tried the UUSD code on Samsung and Google phone apps but not working. I checked every CSC so I don't end up flashing unnecesarily. I'm gonna flash some nordic firm that I read is unbranded, wish me luck, hope I don't end up with a brick.
Click to expand...
Click to collapse
Flashing the firmware for your country's CSC alone is not enough, as I said you need a tool like SamFw to change the sales code set in the efs partition of your phone (without it, root would be required to modify those files).

BlackMesa123 said:
Flashing the firmware for your country's CSC alone is not enough, as I said you need a tool like SamFw to change the sales code set in the efs partition of your phone (without it, root would be required to modify those files).
Click to expand...
Click to collapse
How come I didn't notice the CSC change function on SamFW tool? I just change it with it and now is all clean as expected (debranded), thank you! So grateful!