[Q] How to change the CSC code? - Galaxy S 4 Q&A, Help & Troubleshooting

I just flashed the stock BTU (UK) firmware and noticed that when I connect to Kies, it says my CSC is still the old Telstra one. Is there any way I can change the CSC to the UK default?
EDIT: It updates the CSC after a factory reset. Mod can delete post

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change csc in Darky 10.1 advice please :)

Originally flashed JVH from samfirmware.
Flashed the Ficeto_JVH base and then Darkys as normal
Can't reset the csc within Darky by using the normal methods and also tried the same when on Ficeto_JVH before flashing Darkys, but as with Darkys, you only get the current csc (xee). My normal sales/area code is cpw(o2 uk)
I can't send or recieve mms and I have manually changed the apn settings. Internet works fine.
Had the same issue whilst on Simply Honey but that gives you a multi region csc so you can easily change it. My mms's then worked fine but I do like Darkys so I'd like the try and sort the current issue if someone wouldnt mind advising me
Thanks!
No one know?
How about flashing a jvo csc over darkys using odin? Bare with me here lol
For the benefit of anyone else ever wondering the same thing...
Flashed it anyway.
JVO oxa csc only through odin.
Phone booted up. Opened csc selection in sgstools. Gave me the full choice.
Installed cpw csc. Rebooted. Works perfectly and I can now send and receive mms messages.
Hsppy days.
cc
If you have a exiting CSC folder, copy it with root explorer to system/csc
If the csc not exist, try to modify all CSC files in the folder with a hex editor.
And replace your product /CSC Code e.g. you wish DBT and you have the XEE folder.
I hope you understand me and it works.
happy luck.

is there any way to change csc?

i have flashed an international version rom to my branded vodafone one. everything ok. wiped data but kies still says it cant be upgraded. the app doesnt work and the *#272 method also doesnt work.
is there a way to change csc?

[Q][N9005] I want to... brand my phone - CSC change

I have bought unlocked N9005 from Germany. The problem is I need to flash very specific ROM related to my home network - T-Mobile PL.
I managed to debrand and upgrade my phone to N9005XXUENA6_N9005OXXENA5_N9005XXUENA2. Works fine.
But now I need to change CSC to TPL and flash N9005XXUENA7_N9005TPLENA2_N9005XXUENA2 - but direct flashing with ODIN ends with usual invalid ext4 image.
What shall I do to flash banded firmware?
PS: *#272*(my_IMEI)# does nothing. IMEI of course checked with *#06#

Changing CSC from KDO to BWC

So i bought a 2nd hand s7 edge off kijiji. No issues with it, but i've been reading that wifi calling is an option with my provider (Bell Canada, hence the BWC csc) and I'm wondering what benefits there are (if any) by changing the CSC in my phone, or if making this change would then enable the option.
I can enter the *#272*IMEI# and get the option to change it, i just want to make sure i'm not gonna mess anything up by doing this.
Any insight would be helpful. Even if there aren't any benefits for doing this change, i'm still curious as to what kinds of things this change can do, whether they be good or bad.
Thanks in advance!
Bump for visibility
I believe all the firmware from any carrier is fine, as long as its from a Canadian Provider.. I bought my Edge from Samsung store... Went onto the Sammobile and flashed a general canadian firmware with the sept update, no issues...
Only way to change the CSC is to root your phone first and then install SAMSUNG INFO software from Google play Use the Csc Changer option and then select your preferred CSC from the list and install then your phone will restart and will restore Factory setting *before doing that make backup your phone* and then your phone will restart with new CSC ......You are done ....
NOTE: this process is only be possible with multi CSC phone or international models

No hidden menu, no CSC, no LTE

Somewhere over the years I apparently lost the carrier directory in /efs, as well as the CSC data - is there any way of getting this back? I'm hoping it's at least possible by flashing back to stock but only as a last resort - I've tried a bunch of different things without success so far.
The phone started as a Rogers N900W8 and was immediately unlocked and rooted. Sometime soon thereafter a Bell 4.3 firmware was flashed (via Heimdall). I then switched from Rogers to Wind (now Freedom) - I believe this is where the hidden menu disappeared if I remember correctly - and the phone functioned just fine through all of this.
I then moved from that Bell BMC 4.3 to the Wind GLW PG1 5.0 firmware (grabbed from sammobile and flashed via Odin) thinking that the presence of the Wind SIM would trigger the firmware to switch from BMC to GLW but it doesn't seem to have worked out like that. I'm now running the LineageOS nightlies and the phone works just fine except for a lack of LTE which is what I'd like to sort out with the secret codes. Also, since switching to Wind I believe my mobile network has always been displayed as HOME.
Samsung Phone Info doesn't list any CSCs except BMC under original. In the firmware tab, it's not listing PDA or CSC version. There is no carrier directory in /efs nor are there any CSC files in the file system. Entering almost any secret code fails "Connection problem or invalid MMI code" - *#06# will display IMEI but all others I've tried don't work.
UPDATE #1:
Have been able to get the Canadian CSCs onto the device and recognizable as being present by Phone Info.
Ripped out cache.img.ext4 from the PG1 firmware and used Cache Ripper (found on XDA somewhere) via Wine on linux to create a TWRP flashable zip. Had to mount system in TWRP before flashing.
Changing CSC with Phone Info apparently does a Factory Reset and not quite ready to do that yet as more research seems to point to reverting to stock for the hidden menu.
UPDATE #2:
Flashed stock PG1 via Odin. Went into a bootloop after building Dalvik on first boot and had to reboot into the stock recovery and wipe data and system, then it booted fine. The back button stopped working (LOL Samsung) and I had to flash a random 5.0 custom kernel (idlekernel) to get it back. Flashed TWRP and SuperSU.
There is now an empty carrier directory in root but there still isn't one in /efs. Lots of information on XDA pointing to this being a prerequisite for the secret codes - turns out it's all bunk.
Secret codes work. Had some difficulties with Phone Info not letting me into the root menus to change CSC - was spitting out output from some failed scripts - and when I was just about to give up it started working. Changed CSC to GLW which prompted another factory reset, and now it shows GLW / BMC as the active CSCs. APNs were Bell's originally, which is not what I wanted, but after following the *#272*IMEI directions from this thread and another factory reset they are now Wind's. No LTE yet. Would like to get rid of the BMC CSCs altogether since this was never a Bell device.
Some more stuff changed in Phone Info: Product Name is now hltevl, Firmware's CSC Code is now BMC and CSC Country is Canada/CA. PDA and CSC version has also been populated. CSC Changer still defaults to having BMC selected and I'm still getting the Bell bloatware.
UPDATE #3:
Active CSC reverted to BMC after a couple reboots...they're all BMC now.
Attaching (the initial) Samsung Phone Info screenshots (don't see how to edit them into OP via mobile app) .
I recommend to flash a stock firmware instead of this custom rom.
vndnguyen said:
I recommend to flash a stock firmware instead of this custom rom.
Click to expand...
Click to collapse
Thanks for stopping by.
I flashed the stock PG1 firmware for the GLW CSC. But the device still thinks it's BMC - this probably has something to do with all the Canadian devices sharing identical hardware and firmware.
Then I used your tool to change the CSC to GLW. All of the CSCs remained BMC except for Active CSC which was BMC/GLW. After a couple reboots even that was gone and Active CSC reverted to BMC.
Do I maybe need the stock recovery for the CSC changes to stick ? I flashed TWRP 3.1.1 for root.
perosredo said:
Thanks for stopping by.
I flashed the stock PG1 firmware for the GLW CSC. But the device still thinks it's BMC - this probably has something to do with all the Canadian devices sharing identical hardware and firmware.
Then I used your tool to change the CSC to GLW. All of the CSCs remained BMC except for Active CSC which was BMC/GLW. After a couple reboots even that was gone and Active CSC reverted to BMC.
Do I maybe need the stock recovery for the CSC changes to stick ? I flashed TWRP 3.1.1 for root.
Click to expand...
Click to collapse
So your problem is to get LTE back, or get rid of BMC?
vndnguyen said:
So your problem is to get LTE back, or get rid of BMC?
Click to expand...
Click to collapse
I'd like to do both if possible but I'm not going to sweat over the CSC if it's purely cosmetic - mainly concerned about the LTE.
I wouldn't be surprised if they are linked however since the carriers here operate LTE on different bands to the best of my knowledge.
So firstly try to install the stock BMC firmware to see if the LTE works?
Long story short, LTE isn't yet available in this location on this carrier on a Note3-supported band yet.
So that's that.

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