S8 (SM-G950W) CSC flashing and going back to original - Samsung Galaxy S8 Questions and Answers

I flashed my original Canadian S8 with an CSC from the U model in order to try out how it will behave
under my provider.
Now i want to go back to my original CSC so I flash my canadian firmware but the extra CSC customizations
from the US providers are still there.
I use the Samsung mobile info to see all available CSC codes and I do see the canadian providers plus the US providers.
Is there a way to erase all CSC and to have only the one that comes from the firmware?
It seems when I flash the canadian firmware with Odin, Odin does not erase the previous CSC but just appends

Related

[Q] Firmware download form different country??

ive seen other threads on this topic but none really answered properly.
I live in Ireland and bought my phone unlocked from the UK , i want to get my stock firmware back but i cant find one that suits my model and version. So would i
harm my device if i used a firmware from a different country that has the correct firmware i want????
s4 i9505
If the phone is unlocked you shouldn't have any issues. Except with CSC maybe.
whats CSC exactly?
Consumer Service Code, which is what Samsung uses to customize the firmware for a particular region. With devices that are locked to their carriers this also means the apps that the carrier wishes to add to the firmware. In your case, since your S4 is not locked to a carrier you can install any stock ROM you wish from any region. For example, my unlocked I9505 was originally on O2 in the UK (CSC O2U). When I purchased it from its original owner it came to me with Slovenian firmware (SI Mobil, CSC SIM). I subsequently flashed unbranded firmware onto the device and ended up with a device that thought it was Swiss (CSC AUT). In this last instance, three Swiss-specific apps were added that are not found in the other versions of the firmware. These apps were added because the CSC reported itself to the firmware installer and said, "install these apps as well". Had I changed the CSC to BTU I likely would have gotten some UK-specific firmware.

Clarification regarding multi csc

Hello everyone,
I thought of changing my mom's s7 edge region to BTU (currently KSA) as it is very slow in getting OTAs. It only got the December security patch update a week ago or so. As I am not familiar with Samsung phones, I read the forums for every info about CSCs (the CSC and home_CSC were very confusing). I checked the CSC using phone info and it does not have the original CSC, but have a lot of available CSCs and from what I read, I presume the ROM is multi CSC and that it comes with KSA because of the origin country.
But the problem is that I read somewhere that if you flash the firmware of some other region (eg BTU), you cannot go back to KSA, instead it will default to XSG, and also that you need root to select CSC. It also said 'maybe' I would be able to return to the original CSC using smart switch. Can anyone confirm this?
Will it be denied warranty or something when I cannot revert CSC back to KSA before giving it for warranty? (I read that changing region generally does not void warranty, but I think I'm paranoid **thinking of my mom screaming at me**)
Also if I flash the UAE firmware (XSG), will I still retain my own CSC if I do not flash the UAE CSC along with it because XSG is given is my available CSC codes? ( If that is true I should flash BL+AP+CP without CSC or am i wrong?)
Please pardon me if this was asked before but I could not find any information regarding the first and third question
Thank you very much!

S8 multi CSC Firmware question

Hello,
Can someone please try to explain this to me:
When I flash a multi CSC firmware on my S8, from the same region as my original firmware, how will the phone decide with CSC to assign from the multi-CSC list?
Example:
I have an S8 from Vodafone Romania and I want to flash the Romanian ROM firmware. But this firmware also contains other European unbranded CSC codes.
On what basis will the phone assign ROM as CSC to my phone? Based on the SIM card?
Many thanks.
No matter.
I have reflashed my branded Vodafone S8 with the open firmware for Romania. After, did a wipe cache and factory. Then the phone asked me to accept another reset to apply features from my sim card. Done that and the CSC is now the one from my country ROM. So, short answer, keep the sim card you want the CSC for in the phone to have specific settings

BTU Firmware for Galaxy S7 please?

I need a stock BTU firmware for my SM-G930F S7 as the place i bought it from(mobiles.co.uk)screwed me over and gave me a firmware with a verizon us csc.It even thinks the GPU is an Adreno,when it is actually a Mali,which is why I want the stock UK Firmware.
fucceeandcarphone said:
I need a stock BTU firmware for my SM-G930F S7 as the place i bought it from(mobiles.co.uk)screwed me over and gave me a firmware with a verizon us csc.It even thinks the GPU is an Adreno,when it is actually a Mali,which is why I want the stock UK Firmware.
Click to expand...
Click to collapse
Well,I have the firmware now.But should I take the risk and flash it with ODIN or not.Also,in CSC in Odin,do you put the HOME_CSC there or the CSC?
CSC wipes your data; HOME_CSC does not.
Droiderat said:
CSC wipes your data; HOME_CSC does not.
Click to expand...
Click to collapse
Cool,so I'd use home csc so I don't lose my data.But I've heard from some people that they lost their IMEI when they used a different CSC.
CSC won't affect your IMEI, just don't tick anything extra in Odin as that's usually what breaks IMEI etc. Leave it all default.

How to change CSC from XAA to TCE?

I bought a S8 + originally from Verizon. Then installed firmware unlocked (SM-G955U1) then the CSC automatically changed to XAA (usa unbranded).
I am currently using it in Mexico with Telcel. Everything works good, samsung pay does work, but I want to active VoLTE and use carrier ID anti spam there's no option to activate that because my CSC is not TCE, the problem is that the firmware is not SM-G955F (exynos version) that includes TCE (telcel México) CSC which allows to go to a specific setting menu to activate volte and ID anti spam.
I'm almost sure it is not possible changing the CSC because proccesor firmware incompatibility Snapdragon (SM-G955U1) and Exynos (SM-G955F).
The question is, can I change the CSC that comes with firmware U to a CSC that is supposed ONLY included in firmware F (exynos) ?
And how to do that?

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