How To Change CSC Code On Samsung Phones with SamFW

This tutorial shows how to change the CSC (consumer software configuration) code on your Samsung phone. This tutorial also shows how to bypass samsung's "Sim Card Changed" or "Configuration Update" dialog box.
This is NOT a carrier unlock, and will not allow you to use a carrier locked device on another provider.
This code allows you to change the LTE and 5G logo, remove carrier branding and startup screens, and enable lost features disabled by carrier CSCs.
SamFW tool:
samfw.com/blog/samfw-frp-tool...
(towards bottom of page)
ADB AppControl:
adbappcontrol.com/en/

[@TheTechTinkerer]

Note, XAA may not work on a carrier device. You can use it on any model ending in U1 though. You can flash U1 firmware onto a U device if you do want XAA. If you do not want to flash to U1 firmware, CCT is a less bloated config compared to many that does keep most features in tact. You still have a startup screen though.

[@pilotdog68]

So if I have a model SM-S901U originally from Verizon, I should not attempt to switch CSC to XAA?

[@TheTechTinkerer]

@@pilotdog68 you can do this, however you will have to flash firmware. I have done this on my galaxy S20, and it works. I would research flashing firmware with ODIN if you choose to go this route, and please do be careful.

[@janarust8962]

Does flashing unlock the carrier?? If not is there a method to do so?

[@miladakbari3881]

Straightforward and well explained! Thanks

[@boxu3155]

thank you so much. This is really helpful. I bought an unlocked S21 from ebay and it does not have wifi calling. it has U1 firmware CSC is TMB/TMB, TMB/VZW. I really want wifi calling due to spoty connection. Following the instruction, I change CSC to XAA, the volte calling option shows up but wifi calling options shows up for a second and disappear. I have another phone with CSC XAR which does have wifi callling option. So I change the CSC to XAR and reboot, the wifi calling finally shows up.

[@emadalkahroosi]

Perfect.

[@bernhardreitshammer2126]

Hey, i have a S21 from Japan living in Europe, and i dont have the otion for eSim, so i wanted to change the CSC. But SamFW tells me "SJP" is the only supported CSC, there is no other option for a CSC. Can i just put another in (it says "or your choice") or will that brick the phone? Or is there another workaround to enable "esim"? It is so weird why the option "sim manager" is not available in the settings. Even Samsung support didn't know what to do...

[@deltaxsingh]

Been having quite the time with my Canadian device (SM-S911W). I understand Verizon has a secret menu to change the CSC to GCF but even though the Canadian and US models are identical, I can not change to a Verizon CSC.

[@chris-737]

hi i have a question i have a docomo s23 and if i change my csc to xtc philippines can i still use my nfc and will it factory reset my device?

[@hoanggbaohohehuhi]

same question with s23 dcm. i've read thread on xda and say that japan and korean model can't change csc. still hope s23 dcm can change to global one. If you can change csc to your country, pls tell me that you can. thank you

[@nirelbaz4367]

do we have path for Samsung watch 6 CSC change ?

[@aliazlan8195]

Hello, I have an SM-S908U ATT phone. It only updates to a select few csc's that are native to the US. I am in India though :(

[@uropig]

SamFw Tool doesn't see my device, even though adb does Nvm you need to change your phone to file transfer mode too

[@ahmedtarek321]

I have xaa model phone u1 and doesn't want to change to EGY help

[@AbramVargas]

Thanks a million worked like a charm for me. I was able to activate spam call filters once I changed my CSC to the region where I live. Do you know if this will affect OTA updates?

[@HHCJune2018]

What phone and carrier did you change the CSC region on successfully?

[@AbramVargas]

@@HHCJune2018 I changed the CSC from Panama to Mexico Att carrier.

[@marcioresende120]

Hello! I have on s24+ with CHC in it. But I'd like to change to whatever Samsung Pay works. What do you recomend me to do? It doesn't show any other CSC than CHC. Thanks!

[@ItsMrHal]

Did you get this fixed? Friend got S24 ultra from UAE and we having same problem as you.

[@marcioresende120]

@@ItsMrHal no, it's only been 16 hours ago :(

[@ItsMrHal]

@@marcioresende120 Will be taking a look again tomorrow for him. Will look around see if there is A fix.

[@marcioresende120]

@@ItsMrHal hello, have you had any progress yet?

[@ItsMrHal]

@@marcioresende120 Not yet not had the time to try again. Or found info online

[@ahmedtarek321]

It says everything ok except running exploit failed

[@poonforce]

S908N how to change csc to Indian

[@TheTechTinkerer]

You can try code INU (unbranded India)

[@VarunDubey-so5ev]

did it work???

[@itzDFOM]

i keep getting this message "no device selected" although my device is connected to my laptop and it shows up in "This PC" tab, i have enabled usb debugging

[@qwaykee_]

install the samsung usb driver in the config button in samfw tool, worked for me

[@ManjunathP321]

Please help me brother I have s20fe 5g Australia model now im using India and its 5g network is not working, if i change the csc does it will work 5g network? Please 🙏🥺

[@spinop]

Yes bro i also have same issue 😢😢

[@pankajthakur-sl9xs]

Yes 5G neteork should work after changing CSC

[@muhammadzeeshanafzal2386]

How to Change U Model S21 Ultra CSC Code To KSA Saudia Arabia

[@Vlog15714]

I purchased a Samsung Fold 2 from AT&T in the USA, and now I'm unable to update the software in India; it's still stuck on Android 10. I tried updating using the Samsung Smart Switch method, but it still doesn't allow the software to be updated. I'm stuck on Android version 10. Is there any possible way to update the phone to the latest Android version without losing the data on my phone?

[@yusufabl8007]

Change back to original csc and try again

[@Vlog15714]

@@yusufabl8007 I have never changed the CSC so you mean to say should i change it to Indian CSC ?

[@desijaat5596]

Hi i bought my s22 ultra from india now i am using my phone in canada it doesn't work with 5g and Samsung wallet is also not working what to do without loosing data and please also tell me can change back to indian version

[@TheTechTinkerer]

The default/unbranded CSC for phones sold in India is INU. Devices sold outside of the US and Canada likely will not connect to the 5G network here due to the bands being different in the two regions. The phones sold globally vs North America are also different, so the CSCs are likely not compatible.

[@schifoso]

I read on Samsung Canada members forum that an owner with a Vietnam Galaxy S23 phone changed his CSC from XXV to WWD and then was able to get 5G working on the Rogers network. Perhaps that will work for you? Only issue is updates won't work unless the CSC is changed back to the original.

[@davidspeishaendler8135]

Ita work with s24plus ui 6.1

[@HHCJune2018]

Has anyone done this successfully on an S24 Ultra? Mine is the unlocked version directly from Samsung, CSC ends un U1, so I assume this video applies? Will I lose any functionality of data in doing this?

[@pankajthakur-sl9xs]

It should work. No data will be lost during process.

[@febinouseph8230]

Can we change korean CSC (KOO) to indian CSC (INS)

[@TheTechTinkerer]

International is not my expertise, sorry! I have only dealt with CSCs in the US with our carriers. You can always try it and revert it if it doesn't work, or is worse in some way.

[@antonisperiv]

Does this method wipe the phone?

[@TheTechTinkerer]

it does not wipe user data.

[@neax451]

How to change region on samsung?

[@TheTechTinkerer]

Follow the tutorial, and make sure to use CSCs that your device supports. US/Canada devices are different from the ones sold elsewhere. You can search online for the CSC you need for your country/region.

[@seank619]

SamFw shows as a file full of viruses?😪

[@XLGaming]

its not. It is a false flag because it has code that manipulates devices (which is the entire point of the program)

[@noTH9IK]

Does phone have to be rooted for this?

[@AbramVargas]

no it does not I just did it on my Samsung S23 ultra to get the spam call filter option on it and I did not have to root the phone. You do have to tell you antivirus and firewall to allow this program to run because it does detect it as malware. There is no malware its just that it does not have a digital signature and the scrips it uses are detected as malware. I live in Mexico so I flashed the CSC IUS which is one of the CSC for Mexico and got the feature I wanted.

[@goticachido]

RUNNING EXPLOIT FAIL... S22 ULTRA

[@ItsMrHal]

Same as S24 Ultra did you find A fix?

[@goticachido]

@@ItsMrHal even if you have the error I found that if you turn on the phone and wait about 20 min, in my case the update arrived.

[@ItsMrHal]

@@goticachido Thank will look at his phone again later.

[@-_-_-_-_-_-_-_-_-_-_-_-...]

if i go through the CSC change process and later need to factory restore my phone, will the CSC be reverted back to its original one or will the CSC change using SamFW be permanent?

[@TheTechTinkerer]

I am pretty sure it resets. However, you can reflash as many times as you want.

[@-_-_-_-_-_-_-_-_-_-_-_-...]

so my phone is TMOBILE and i found i can flash using stock firmware using odin with the TMobile CSC, but that'll just reinstall all the TMOBILE bloatware with that firmware right? And this method you're showing is to flash the firmware to an unlocked phone, which contains no bloat? Thanks!

[@TheTechTinkerer]

This tutorial was done on a carrier device to show the process. It's the same on both carrier and unlocked devices, but XAA requires U1 firmware if you want service to work. U1 firmware by default has no bloat, but the 4G/5G logo is changed, and you lose dialer codes and certain features within the phone app from what i noticed. Carriers also show the 5G logo when you are using LTE, which i dislike. You can just change to XAA once you flash unlocked firmware if you want, and it is identical to a factory unlocked device in the US.

[@TheTechTinkerer]

Also note if you want to flash U1 unlocked firmware, you need a patched version of odin, or else it will not flash. You also want to use CSC instead of HOME_CSC in odin. User data has to be wiped when changing firmware to a different model.

[@-_-_-_-_-_-_-_-_-_-_-_-...]

@@TheTechTinkerer thank you so much! I followed all your tips and was able to flash to u1!