I have tried various how too's without much success. I can change the CSC to a non OXM CSC but when ever I try to flash a multi OXM CSC it always comes back to TEL.
I've tried with my UK 02 sim in to no avail although I am trying to do this whilst in Thailand if that would make a difference.
When I flash a OXM combi file in AP it will flash on its own but not with a CSC file, Have I got the wrong Combi file? when i try *#243203855# nothing happens.
Also when I flash a supposedly multi csc firmware XEU, PHE, when I go into the bootloader it says single sku.
In download mode it tells me the OEM lock is Off does this mean the bootloader is unlocked? As i dont have the option in dev options.
Any help would be appreciated.
Hello to everybody,
I have a Galaxy S9, model SM-G960N and finally the Korean Update to Android 10 arrived, downloaded it from SamMobile (The unbranded version KOO) Flashed it without problems and the phone works as intended. Only it doesn't have KOO as CSC, it has SKC, which has bloatware and it isn't the one I flashed. What gives? Why does it do that, are there any workarounds? Here's what I've tried until now:
Downloaded, and flash numerous times, no result, I don't live in Korea, I don't have a Korean SIM, phone still reports SKC.
Flashing with or without sim card inserted gives the same result.
Can't flash any other CSC, other than Korean ones, Odin spits out an error and it does not even start the flashing process.
Mix and matching different CSC with different firmware's obviously not successful.
Any idea if something can be done about this?
Thank you in advance.
You need to root it and change CSC with phone info app to KOO
numpea said:
You need to root it and change CSC with phone info app to KOO
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Click to collapse
I guess that's the only remaining way, but do you know why it picks SKC instead of KOO, even if the firmware that I'm downloading is KOO.
Korean CSC is a multiCSC even if you download KOO firmware you phone will use SKC that's included in the CSC so there is no different korean csc there's only one that includes the 4 csc codes
i have rooted device but i need multilanguage. ho i can debrand or add orginal languages?
tejanaqkilica said:
Hello to everybody,
I have a Galaxy S9, model SM-G960N and finally the Korean Update to Android 10 arrived, downloaded it from SamMobile (The unbranded version KOO) Flashed it without problems and the phone works as intended. Only it doesn't have KOO as CSC, it has SKC, which has bloatware and it isn't the one I flashed. What gives? Why does it do that, are there any workarounds? Here's what I've tried until now:
Downloaded, and flash numerous times, no result, I don't live in Korea, I don't have a Korean SIM, phone still reports SKC.
Flashing with or without sim card inserted gives the same result.
Can't flash any other CSC, other than Korean ones, Odin spits out an error and it does not even start the flashing process.
Mix and matching different CSC with different firmware's obviously not successful.
Any idea if something can be done about this?
Thank you in advance.
Click to expand...
Click to collapse
i've to face the same thing mine is KTC but it shows SKC. idk what to do after did that always my device is getting overheat
I Have an Unlocked S20 Ultra 5G from samsung. a while back flashed the t-Mo firmware to have 5G SA access. flahsed the lastest update BTIE. I also have a line with AT&T and decided to try that in my phone and test out their 5G. so i put my sim in and changed my CSC to ATT using the dialer *#272*IMEI# and all was well. went to switch back and didnt think and i selected XAA. now my phone is stuck on XAA, and the csc dialer code no longer works and neither does the *#BAND# dialer code. I have even tried to do a clean flash in odin with the csc file not home-csc and neither one works and im still stuck in the XAA/XAA/XAA.
anyone have any idea how i can get it back to how it was?
weasel18 said:
I Have an Unlocked S20 Ultra 5G from samsung. a while back flashed the t-Mo firmware to have 5G SA access. flahsed the lastest update BTIE. I also have a line with AT&T and decided to try that in my phone and test out their 5G. so i put my sim in and changed my CSC to ATT using the dialer *#272*IMEI# and all was well. went to switch back and didnt think and i selected XAA. now my phone is stuck on XAA, and the csc dialer code no longer works and neither does the *#BAND# dialer code. I have even tried to do a clean flash in odin with the csc file not home-csc and neither one works and im still stuck in the XAA/XAA/XAA.
anyone have any idea how i can get it back to how it was?
Click to expand...
Click to collapse
Probably have to use Samkey
I have a SM-G985F/DS that was originally CSC as TPA. I got a 5g sim but it wasn't showing 5G ( i didn't know that the s20+ doesn't even support 5G). Anyways, i figured if i change it to Tmobile CSC that it will be work. TMB wasn't availiable on the CSC so i just picked TMS(slovakia tmobile). it worked but my connection is worse than before and i cant change it back. I used *#272*IEMI# to access the preconfig before but now it won't work (same day, same softwar, same everything). It keeps saying "connection issue or invalid MMI code". I also notice that as it runs the USSD code, the signal drops from 4G to H and then fails as soon as it changes to H. And it is consistent, meaning the USSD is causing that switch in networks or something. I have tried to reflash stock firmware from TPA, MAX, XID but the CSC from the firmware files are not changing the phone's CSC. The software build does reflect with ODIN being successfull and everything but the CSC just wont change. I also hoped that even if the CSC doesn't change with the flashes that the *#272* code works again; however, not the case, it still doesn't work.
I had read that android 10 allows for google phone to access the menu directly but i can't downgrade either. I keep getting bootloader check and kernel check errors on the phone side. I even tried to downgrade in the same order as upgrades. Even the latest previous build didnt work cuz it was binary 6 instead of 7.
Does anyone know how to fix this? Need help to either fix the CSC or how to downgrade to android 10 without issues(bootloader version and kernel version issues).
*samkey does not support my device.
PROBLEM SOLVED (SORT OF): I installed another multi CSC firmware that did not contain TMS and it was able to switch to the default on that firmware. When i switch back to OXM multiCSC firmware it defaulted to French CSC but *#272* code still did not work. But it worked on the other multi CSCfirmware. So looks like i won't be getting TPA back which was getting LTE+ receptions just fine. I switched over to OWA multicsc firmware which contained TCE CSC which is in mexico and uses the tmobile network for roaming. But it still does not use LTE but shows 4.5G which i assume is the same as either 4G+ or LTE. Either way, speed test shows ~40mbps down which is a hell of a lot better than ~5mbps on TMS.
i changed CSC on my G986B using samkey so they support s20 for sure.
Despite fold3 and flip3 being listed as supported both tools fails to change CSC. So don't waste your money.
Only way to change CSC currently is via ODIN, and you have to flash a non-Common CSC, ie. if you keep flashing the OMC_OXM your CSC will stay the same.