Unable To Debrand Three UK Note20 Ultra - Samsung Galaxy Note 20 Ultra Questions & Answers

Hey guys. I have a Three UK Note20 Ultra and I'm trying to debrand the device using a BTU firmware version, but it doesn't seem to work. The ugly Three bootscreen and their apps still install onto my device. How do I bypass this? Any help would be much appreciated.

What is the version number of the firmware you tried to flash? What is the version number that's now reported in your settings?

Palpeh said:
Hey guys. I have a Three UK Note20 Ultra and I'm trying to debrand the device using a BTU firmware version, but it doesn't seem to work. The ugly Three bootscreen and their apps still install onto my device. How do I bypass this? Any help would be much appreciated.
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Mate nothing is wrong with the firmware you flashed. You need to change CSC. Change your csc to BTU firstly.
I Successfully Changed the CSC of My SM-N986B/DS (Exynos)
https://forum.xda-developers.com/ga...ow-changed-csc-exynos-variant-t4163629/page20

Gary02468 said:
What is the version number of the firmware you tried to flash? What is the version number that's now reported in your settings?
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I flashed N986BXXS1ATID and CSC N986BOXM1ATI2 from SamMobile on to my device.
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Related

Help to return Stock 8.0.0 S7 Flat

i using odin to 8.0.0 stock more have issues stuck in fail ://
if possible, Could you tell me what solution?
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thanks
gtajunior said:
i using odin to 8.0.0 stock more have issues stuck in fail ://
if possible, Could you tell me what solution?
thanks
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You are flasshing an older firmware. Install samfirm then you can download the latest
The problem is that you are trying to downgrade from a version "3" bootloader (3DPA5) to one that is version "2" (2ERH3). Odin (and Samsung) won't allow this. Once you have upgraded your bootloader, you can't roll back.
There are ways to get around this limitation using TWRP and a custom ROM for the downgrade, followed by Odin, but it is complex. You should simply select appropriate firmware with the correct bootloader.
kpwnApps said:
You are flasshing an older firmware. Install samfirm then you can download the latest
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Thanks for help working 100% with build 02/2019

Change CSC on SM-N986B

Hi, i just flashed a DBT Firmware downloaded by samfirm but my CSC won't change. On the Note 10+ it worked.
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What can i do?
Edit: *#272*IMEI# method also not working
jaysusw said:
Hi, i just flashed a DBT Firmware downloaded by samfirm but my CSC won't change. On the Note 10+ it worked.
View attachment 5102573
View attachment 5102575
What can i do?
Edit: *#272*IMEI# method also not working
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https://forum.xda-developers.com/galaxy-note-20-ultra/how-to/how-changed-csc-exynos-variant-t4163629
BlinkThinks said:
https://forum.xda-developers.com/galaxy-note-20-ultra/how-to/how-changed-csc-exynos-variant-t4163629
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Just to do nothing wrong:
1. downgrade to pre august patch (any csc , e.g. XTC-N986BXXU1ATGI)
2. following the procedure, change csc to dbt
3. flash an original DBT firmware ending up with having DBT "forever"?
Thanks!
'
Edit: Okay, couldn't wait.
I have an eSIM activated, but this was not a problem.
After CSC Changer procedure i have got DBT/DBT,DBT/EUX/DBT.
Now i'll flash the latest september firmware from samfirm.
One thing was weird: CSC Changer showed that my phone was rooted... but it isn't...
Thank you very much! Worked like a charm!

OTA updates after changing CSC

Hello,
Hope you all are doing well.
A while ago, I have decided to flash the Russian firmware to get android 11 (Couldn't wait lol). Few days later, I have flashed the UAE XSG firmware. My device's original CSC is MID Iraq. Now, my current CSC code is as follows:
XSG/MID, MID/MID
Based on this, will I have any problems receiving OTA updates in the future? Someone told my the that the first two CSCs must be the same do that, but I'm not sure if this is true because the second CSC only indicates the type of sim card I have in SIM-1.
Here is a picture for more information:
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Thanks in advance!
Hie
I also recently upgraded to Android 11. The problem is that now the device gives me the message "Emergency calls only" and won't connect to any mobile network. I am based in South Africa. I updated with the stock firmware CSC "CFA" for Panama (original) then also tried XFA for South Africa but still I get the same message.
If anyone knows how to solve this please help!!

How To Guide Samsung Wallet in Italy with European IMEI, & CSC

Hi XDA,
I come to you in great need.
So, i bought a European S22 Ultra on Amazon, but Samsung Wallet doesn't seems to work (pic 1). Of course i reinstalled the app, did factory reset, checked Knox count (which is 0 (0x0000)), and yet it keeps giving me the connection error.
I came to the conclusion that I have to change the CSC, but on Samkey my model (SM-S908B/DS) isn't listed among the supported models, but even if it was, won't it trip Knox?
Can someone give some advice about this problem?
Thank you!
Paolo
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see
S22 Ultra csc change
Hi. I bought my S22 Ultra in Poland, I live in UK. Samsung pay refuse to work as the phone is from Poland. It is on OXM firmware with EUX CSC. I want to set the region csc for UK. I read that Samkey does not support CSC change for S22 Ultra...
forum.xda-developers.com
Thank you, it worked perfectly <3

Flashing a firmware

Can anyone pls tell me that what is the current csc of my device?
And most importantly my phone's built no is SM-G970U can I flash a firmware of SM-G970U1?
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The CSC is within the last line: SPR/XAA/VZW
You can look up some good info here: https://www.droidviews.com/how-to-change-csc-in-samsung-galaxy-phones/
Basically, this is saying that the active CSC is SPR (Sprint)
... and the phone/ROM not able to determine the CSC of your SIM (XAA is the base/multi-CSC code for the ROM)
... and the phone was "born" as VZW (Verizon). This last one cannot be changed normally, and really doesn't matter (except to the carriers - for example, ATT won't activate a VZW phone, etc... for no real valid reason).
Also, the "OYN_SPR" in the ROM detail tells you that OYN = XAA, and that the ROM was built as an SPR ROM, which is probably why the first CSC is SPR. This is also telling you it's a U-ROM, which is a carrier-specific ROM (U1 is truly open-carrier).
If I flash One from U1
Then will I get ota updates, staying outside USA??
No, I don't thnk you will ever get OTA updates on outside-USA carriers.
But, you can flash ODIN updates yourself... since there aren't that many updates left for this phone, you really don't need OTA updates, because they aren't really happening that often.

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