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Hello my dear friends ! I have Russian firmware... I wanted to change CSC to British firmware.. So I downloaded BTU firmware from sammobile. I flashed it via Odin, than made reset several times but my CSC stays untouchable, it is still SER and not available any other codes, tried both CSC and Home CSC.. If you can please help me what to do.. Am I missing something ? btw when I unpacked the zip file CSC is OXM is it normal ? sorry for noooob question
edit :- sorry worng info
Which build number? Did you try *#243203855# ?
vwdubb said:
Which build number? Did you try *#243203855# ?
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N950FXXU3BRA2 ... tried but no reaction
u3 patches comsey odin
me2151 said:
u3 patches comsey odin
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Is there a way to enable VoLTE in u3?
me2151 said:
u3 patches comsey odin
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I didn't understand...
bekasulaberidze said:
Hello my dear friends ! I have Russian firmware... I wanted to change CSC to British firmware.. So I downloaded BTU firmware from sammobile. I flashed it via Odin, than made reset several times but my CSC stays untouchable, it is still SER and not available any other codes, tried both CSC and Home CSC.. If you can please help me what to do.. Am I missing something ? btw when I unpacked the zip file CSC is OXM is it normal ? sorry for noooob question
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Click to collapse
Because BTU & SER are both part of the Multi-CSC OXM, you can't change the CSC!
You can only change CSC to BTU/XEU if you insert a BRITISH SIM-card in your device...
You can change CSC using combination file.
Check this post->
https://forum.xda-developers.com/showpost.php?p=74324845&postcount=87
I have changed mine from XEU/XEU/BTU to BTU/BTU/BTU using this.
Hi there, I need help.
I tried to flash the stock firmware but I got this message on my phone.can not do anything
I was on dr.ketan P13 trying to flash the stock firmware.
My device was UNITED ARAB EMIRATES(XSG) now is:
UNITED KINGDOM /IRELAND (XEU) since I flashed P13.
SW REV CHECK FAIL(BOOTLOADER) DEVICE: 3, BINARY: 2
After flashing Dr ketan's bootloader device booted well, but CSC country changed.
Any ideas how to go back to my original CSC Country.?
I will appreciate your help
osk4rin said:
Hi there, I need help.
I tried to flash the stock firmware but I got this message on my phone.can not do anything
I was on dr.ketan P13 trying to flash the stock firmware.
My device was UNITED ARAB EMIRATES(XSG) now is:
UNITED KINGDOM /IRELAND (XEU) since I flashed P13.
SW REV CHECK FAIL(BOOTLOADER) DEVICE: 3, BINARY: 2
After flashing Dr ketan's bootloader device booted well, but CSC country changed.
Any ideas how to go back to my original CSC Country.?
I will appreciate your help
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Click to collapse
use your last valid twrp backup from before the issue to restore:
carrier configs (odm)
efs
also when you flash full stock, use csc.md5 and not home_csc.md5 as CSC file.
it migh be good to research what the very latest firmware files are for your device. there should be a july update somewhere. so use that and try again.
if you want and try to fix ure csc issue try to flash zip in:
https://1drv.ms/f/s!AhXVLDDj8g3AgeA6IyH1iTzQAGB4MA
beware that you flash this at tour own free will and i cant be held responsible for anything.
do a full backup first.
in aroma choose DBT and choose ure correct CSC code.
bober10113 said:
use your last valid twrp backup from before the issue to restore:
carrier configs (odm)
efs
also when you flash full stock, use csc.md5 and not home_csc.md5 as CSC file.
it migh be good to research what the very latest firmware files are for your device. there should be a july update somewhere. so use that and try again.
if you want and try to fix ure csc issue try to flash zip in:
https://1drv.ms/f/s!AhXVLDDj8g3AgeA6IyH1iTzQAGB4MA
beware that you flash this at tour own free will and i cant be held responsible for anything.
do a full backup first.
in aroma choose DBT and choose ure correct CSC code.
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Click to collapse
How am I going to know which is the correct CSC code on that download CSC link?
I found a screenshot of my original CSC code(right)
and I screenshot one for the current. (left)
osk4rin said:
How am I going to know which is the correct CSC code on that download CSC link?
I found a screenshot of my original CSC code and I screenshot one for the current.
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looks like its xsg
so looks like u are ok.
who is your sim carrier?
bober10113 said:
looks like its xsg
so looks like u are ok.
who is your sim carrier?
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Sim carrier T-Mobile
I wanted to downgrade to Oreo, but I can't...still getting the same error mentioned above when I flashed Oreo firmware from the same region.
osk4rin said:
Sim carrier T-Mobile
I wanted to downgrade to Oreo, but I can't...still getting the same error mentioned above when I flashed Oreo firmware from the same region.
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oh ok then. well there is TMO in the XAA usa menu in the csc zip. but you are in the us right? so its TMO usa ?
try it. if it doesn't work then flash back stock like u have been doing. if it does work post back here the same screen shot of that app. id be curious to see if it's correctly changes your csc
bober10113 said:
oh ok then. well there in TMO in the XAA usa menu in the csc zip. but you are in the us right? so its TMO usa ?
try it. if it dosenr work then flash back stock like u have been doing. if it does work post back here the same screen shot of that app. id be curious to see if it's correctly changes your csc
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Click to collapse
Yes, I am in the USA, but I bought my phone online .the original region is the UNITED ARAB EMIRATES
osk4rin said:
Yes, I am in the USA, but I bought my phone online .the original region is the UNITED ARAB EMIRATES
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ok that dosnet matter since csc zip flashes tmo files.
so go ahead and try it if you want and report back.
im heading off to bed so good luck
bober10113 said:
ok that dosnet matter since csc zip flashes tmo files.
so go ahead and try it if you want and report back.
I'm heading off to bed so good luck
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Thank you for your help and staying up late helping me.
I already download from Sammobile the most recent firmware from my current region.
it went throw and flash well. now ill just download the Oreo one.
Thank you!!
osk4rin said:
Thank you for your help and staying up late helping me.
I already download from Sammobile the most recent firmware from my current region.
it went throw and flash well. now ill just download the Oreo one.
Thank you!!
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have same problem. I have Note 9 N960F on 9.0 N9 N960FXXS3CSG5 August Patch and i wanna go back to Oreo 8.1.0 N960FXXS2ARL3. But when i flash with odin always fail. " SW REV. CHECK FAIL(BOOTLOADER) DEVICE :3 BINARY: 2 " i know this August patch have XXS3 and 8.10 have XXS2. Any way to downgrade without fail ? PLEASE HELP ME
CruelB said:
have same problem. I have Note 9 N960F on 9.0 N9 N960FXXS3CSG5 August Patch and i wanna go back to Oreo 8.1.0 N960FXXS2ARL3. But when i flash with odin always fail. " SW REV. CHECK FAIL(BOOTLOADER) DEVICE :3 BINARY: 2 " i know this August patch have XXS3 and 8.10 have XXS2. Any way to downgrade without fail ? PLEASE HELP ME
Click to expand...
Click to collapse
ure flashing older firmware rev 2 on a bootloader revision 3 firmware phone.
u cant downgrade to 2 or 1. u have to flash 3 and up firmware.
u can search and read all about it if u take the time.
A long time ago, I switched my CSC to XAA to use unlocked firmware (no bloatware,...) but I can't use VoLTE on that firmware. Now I want to change my CSC back to Sprint's CSC but my bootloader is now U7, and there is no combination rom for this bootloader.
So is there anyway that I can do to reverse my phone back to default CSC??
Btw, my device is now N950U1, I'm thinking about flash N950U rom but I don't know N950U's CSC is single CSC or multi CSC
Please help me. Thanks in advance
N950u has multi csc but you wont to be able to flash another rom accept the stock and yes you will need to wait till they release the u7 combination only that way you can go back.!!
Abhishek16kumar said:
N950u has multi csc but you wont to be able to flash another firmware accept the stock and yes you will need to wait till they release the u7 combination only that way you can go back.!!
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this is one helluva first post! most first posts are asking stuff, you answered stuff, and correctly! Nice work! Well, minus the hair-splitting wordage correction i made to your quote
Hello I have a Samsung s21 ultra with a Carrier (meo) firmware from Portugal and I wanted to switch to an unlocked firmware which in this case is TPH, I downloaded the sammobile TPH firmware and installed it via odin, I did everything right I installed the csc not the home_csc, the smartphone did the factory reset but it still has the Carrier firmware (meo), what did I do wrong?
rikardugama said:
Hello I have a Samsung s21 ultra with a Carrier (meo) firmware from Portugal and I wanted to switch to an unlocked firmware which in this case is TPH, I downloaded the sammobile TPH firmware and installed it via odin, I did everything right I installed the csc not the home_csc, the smartphone did the factory reset but it still has the Carrier firmware (meo), what did I do wrong?
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u did nothing wrong , that samsung ,,,,,, lol , u can do that in 2 possible :
1- using sam key and that not free u must buy and as i know till now sam key not support Android 11 one ui 3.1.
2- till an developer find a way to change csc .
3- to use TPH sim card as samsung csc detect sim card inside device .
4- using option 1 or 2 we victory samsung even if MEO sim card is inside ur phone it can change to TPH .
hope i help
rikardugama said:
Hello I have a Samsung s21 ultra with a Carrier (meo) firmware from Portugal and I wanted to switch to an unlocked firmware which in this case is TPH, I downloaded the sammobile TPH firmware and installed it via odin, I did everything right I installed the csc not the home_csc, the smartphone did the factory reset but it still has the Carrier firmware (meo), what did I do wrong?
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hi, in csc you must select home_csc
UNIK97122 said:
hi, in csc you must select home_csc
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Click to collapse
To change firmware no
rikardugama said:
To change firmware no
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if you want to save your data it's home_csc....csc alone reset the phone i use to change my firmware for years i buy a BOG now i have BTU
UNIK97122 said:
if you want to save your data it's home_csc....csc alone reset the phone i use to change my firmware for years i buy a BOG now i have BTU
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Click to collapse
But my problem is change my firmware not save my data
rikardugama said:
But my problem is change my firmware not save my data
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oups i forgot to ask you if you unlocked OEM in dev mode ? i do that fisrt when i received new phone
UNIK97122 said:
oups i forgot to ask you if you unlocked OEM in dev mode ? i do that fisrt when i received new phone
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No, I didnt unlock oem, it could be this?
rikardugama said:
No, I didnt unlock oem, it could be this?
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Click to collapse
i think it is
UNIK97122 said:
i think it is
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But the all process its go ok the software did in fact update and factory reset the only think was wrog its the change of the firmware i dont now if the oem unlock its the cause, if someone understand a litle more can help me please
rikardugama said:
But the all process its go ok the software did in fact update and factory reset the only think was wrog its the change of the firmware i dont now if the oem unlock its the cause, if someone understand a litle more can help me please
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I always change my rom like that fo years
Ok i solve the problem with samkey, i pay around 5 dollars for 3 credits and now is unlocked firmware forever! Fast updates! Tnks everyone help me
rikardugama said:
Ok i solve the problem with samkey, i pay around 5 dollars for 3 credits and now is unlocked firmware forever! Fast updates! Tnks everyone help me
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Click to collapse
u have s21 ultra???
carlitobahsoun said:
u have s21 ultra???
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Yes
carlitobahsoun said:
u did nothing wrong , that samsung ,,,,,, lol , u can do that in 2 possible :
1- using sam key and that not free u must buy and as i know till now sam key not support Android 11 one ui 3.1.
2- till an developer find a way to change csc .
3- to use TPH sim card as samsung csc detect sim card inside device .
4- using option 1 or 2 we victory samsung even if MEO sim card is inside ur phone it can change to TPH .
hope i help
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Click to collapse
Samkey works now. I just used it yesterday.
i have g9910 and samkey aint working
eyeatoma said:
Samkey works now. I just used it yesterday.
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Click to collapse
Hey just wanted to understand if this affects warranty. Also if you can post step by step guide on how to do this with samkey?
For people who can't switch between csc in the same mult csc pack. OXM multi csc pack contains all the european generic and network branded firmware (csc) so if You are at MEO (part of OXM multi pack), and flash it with TPH (part of OXM multi pack) the MEO will stay. What you need to do is to flash it with different multi csc pack (just see what packs are available for your model), try to flash Brazil csc ZTO, it's part of multi pack OWO. then flash it back with OXM multi pack, and it should switch to some generic csc, then if you instert your sim card it should ask you if you want to customize your phone to the inserted sim card and it will change your csc to the one you want.
Hello.
In my own case, I bought the SM-G998B from Korea, which is KOO/KOO/KOO, and I live in Africa. I won't mind being able to flash on OXM or any other multi-csc firmware, just so long as I can use my sim card here.
All I'm getting right now is limited service, and the option to select network operators is completely missing from my phone.
my s21U original comes with XSP CSC and firmware.. i have tried flashing to XME the flashing is ok and everything except that under software provider it still shows XSP... will it affect me receiving ota from XME?
If i remove my sim card and do a factory reset and insert another country's sim card will my phone csc changed to that country's csc? Because by flashing with odin it doesn't change the CSC
galaxy16 said:
If i remove my sim card and do a factory reset and insert another country's sim card will my phone csc changed to that country's csc? Because by flashing with odin it doesn't change the CSC
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yes
carlitobahsoun said:
yes
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Click to collapse
I don't have to flash with odin right? Just remove my simcard and format and insert the new simcard?
galaxy16 said:
I don't have to flash with odin right? Just remove my simcard and format and insert the new simcard?
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Click to collapse
yes , than csc detected via ur sim card
Eeeerm, to my knowledge, this hasnt worked since the introduction of Android 10.
I bought a Vietnam phone csc, and it did not switch to my sim csc.
This method, and the dialer code one are gone.
No it won't. You need to get Samkey account. I also did it with Samkey. Bought phone from another country and change it to mine. I have spare account with credit in it if you are interested.
emirefek said:
No it won't. You need to get Samkey account. I also did it with Samkey. Bought phone from another country and change it to mine. I have spare account with credit in it if you are interested.
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Click to collapse
Pm on how much for the account/credit?
emirefek said:
No it won't. You need to get Samkey account. I also did it with Samkey. Bought phone from another country and change it to mine. I have spare account with credit in it if you are interested.
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Click to collapse
that way if u wana keep ur current sim card .
he want to use another sim card like for example :
if u are living in india and use indian sim card than u cant change csc and will detect indian sim card csc.
if u are living in india and u use german sim card than ur csc changed to DBT and receive OTA from germany .
WE CANT CHANGE CSC IF WE USE SAME SIM CARD FROM THE REGION WE LIVING.
ONLY VIA SAMKEY THAT NOT ALLOWED AFTER AUGUST PATCH FOR S21 ULTRA.
HOPE I HELP
PlutoDelic said:
Eeeerm, to my knowledge, this hasnt worked since the introduction of Android 10.
I bought a Vietnam phone csc, and it did not switch to my sim csc.
This method, and the dialer code one are gone.
Click to expand...
Click to collapse
So eventho i remove my sim and format and insert the other country sim the csc won't change too
carlitobahsoun said:
that way if u wana keep ur current sim card .
he want to use another sim card like for example :
if u are living in india and use indian sim card than u cant change csc and will detect indian sim card csc.
if u are living in india and u use german sim card than ur csc changed to DBT and receive OTA from germany .
WE CANT CHANGE CSC IF WE USE SAME SIM CARD FROM THE REGION WE LIVING.
ONLY VIA SAMKEY THAT NOT ALLOWED AFTER AUGUST PATCH FOR S21 ULTRA.
HOPE I HELP
Click to expand...
Click to collapse
I'm from Brunei my current csc is Singapore XSP and they release firmware very slow. I wanna change to XME which is malaysia and i have an malaysia sim card with me. I just need the phone to be in XME to receive software updates faster. By formatting and backing up again will take kinda lot of work. Just need a confirmation if i put that malaysia sim card after a factory reset will it change from XSP to XME..
galaxy16 said:
So eventho i remove my sim and format and insert the other country sim the csc won't change too
Click to expand...
Click to collapse
As i said, that didn't even work for me on my Note 9 with Android 10, apparently it worked up to Android 9, but i am not sure about that either.
If i recall correctly, the only time when someone can change the CSC is within a country from Branded (Vodafone i.e.,) to Unbranded, and yet again i am not sure.
I know for a fact that you cannot just CHANGE THE CSC anymore. Not with SIM, not with Odin and not with the dialer codes. If you are on January/February firmware, i think you can still use the dialer code, but you cannot downgrade anymore due to the bootloader incrementation.
Currently your only bet is SamKey, i used it like the other user did too. It's a highly unfair method from a dev that sought the opportunity to make some money. And you need to be on May firmware for that, but luckily you can downgrade as May uses the same bootloader as the latest October build, and that may change very soon.
PlutoDelic said:
As i said, that didn't even work for me on my Note 9 with Android 10, apparently it worked up to Android 9, but i am not sure about that either.
If i recall correctly, the only time when someone can change the CSC is within a country from Branded (Vodafone i.e.,) to Unbranded, and yet again i am not sure.
I know for a fact that you cannot just CHANGE THE CSC anymore. Not with SIM, not with Odin and not with the dialer codes. If you are on January/February firmware, i think you can still use the dialer code, but you cannot downgrade anymore due to the bootloader incrementation.
Currently your only bet is SamKey, i used it like the other user did too. It's a highly unfair method from a dev that sought the opportunity to make some money. And you need to be on May firmware for that, but luckily you can downgrade as May uses the same bootloader as the latest October build, and that may change very soon.
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Click to collapse
Thank you for the clear clarification.. i shall save my time and data for not doing something that is not going to work. However i have never used samkey before and will need to find ppl selling the credits right
galaxy16 said:
Thank you for the clear clarification.. i shall save my time and data for not doing something that is not going to work. However i have never used samkey before and will need to find ppl selling the credits right
Click to expand...
Click to collapse
@emirefek offered you something above. For changing CSC with SamKey, you actually need just 1 credit. The dev does not sell anything under 45 if i recall correctly. On ebay however, people resell 15 of them in one package. It's infuriating but hey, it's the only solution out there.
I did mine from a friend, where he made me share my USB port over the internet. Forgot the damn name of the app but it was mindblowing that something like that exists.
No to l
galaxy16 said:
So eventho i remove my sim and format and insert the other country sim the csc won't change too
I'm from Brunei my current csc is Singapore XSP and they release firmware very slow. I wanna change to XME which is malaysia and i have an malaysia sim card with me. I just need the phone to be in XME to receive software updates faster. By formatting and backing up again will take kinda lot of work. Just need a confirmation if i put that malaysia sim card after a factory reset will it change from XSP to XME..
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Click to collapse
Simple answer. No. But XSP and XME are in the same multi-csc group OXM so you can change by doing the dialer thing. If you look at your software information you will see this line.
XSP/XSP,XSP/XSP/xxx
There 4 csc for phones from XSP. If your phone is directly from samsung ... its xsp but the opetators' phones have different csc.
Xxx will change according to the SIM. But I am not sure if it will allow your phone to OTA according to xxx. I suspect even if you xhange csc this line will be
XSP/XSP,XSP/XME/xxx
The easiest way is to download releases for CSC DBT and odin.
amoyan said:
No to l
Simple answer. No. But XSP and XME are in the same multi-csc group OXM so you can change by doing the dialer thing. If you look at your software information you will see this line.
XSP/XSP,XSP/XSP/xxx
There 4 csc for phones from XSP. If your phone is directly from samsung ... its xsp but the opetators' phones have different csc.
Xxx will change according to the SIM. But I am not sure if it will allow your phone to OTA according to xxx. I suspect even if you xhange csc this line will be
XSP/XSP,XSP/XME/xxx
The easiest way is to download releases for CSC DBT and odin.
Click to expand...
Click to collapse
Correct at the moment is XSP/XSP,XSP/XSP/XSP
You mean download DBT csc firmware to flash? Will it affect ota updates?
galaxy16 said:
Correct at the moment is XSP/XSP,XSP/XSP/XSP
You mean download DBT csc firmware to flash? Will it affect ota updates?
Click to expand...
Click to collapse
No. But DBT will have monthly updates so DBT will always be ahead of XSP so XSP OTA will be older than DBT.
So if your phone is following dbt releases, you will never ota... with xsp.
amoyan said:
No. But DBT will have monthly updates so DBT will always be ahead of XSP so XSP OTA will be older than DBT.
So if your phone is following dbt releases, you will never ota... with xsp.
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Click to collapse
Sorry but confused.. if i flashed dbt firmware i will not get ota?
Previously i have tried downloading xme firmware but the software provider part still shows all xsp except security patched was updated.. previously on june updates
galaxy16 said:
Sorry but confused.. if i flashed dbt firmware i will not get ota?
Previously i have tried downloading xme firmware but the software provider part still shows all xsp except security patched was updated.. previously on june updates
Click to expand...
Click to collapse
You will still get ota. If xsp ota is newer than what is in the phone. But if you keep flashing dbt, the xsp ota is never newer so ota not necessary
Flashing will not change csc
amoyan said:
You will still get ota. If xsp ota is newer than what is in the phone. But if you keep flashing dbt, the xsp ota is never newer so ota not necessary
Flashing will not change csc
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Click to collapse
I wouldn't not want to always download a full rom 7.5gb monthly to manual flash the update.. ota is still preferred. Seems like only choice is to wait or change csc with samkey now
galaxy16 said:
I wouldn't not want to always download a full rom 7.5gb monthly to manual flash the update.. ota is still preferred. Seems like only choice is to wait or change csc with samkey now
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Click to collapse
I am not sure Samkey really does that. be careful ...
All this is related to security , e.g. samsung pay, stolen phone etc so its not so easy..
amoyan said:
I am not sure Samkey really does that. be careful ...
All this is related to security , e.g. samsung pay, stolen phone etc so its not so easy..
Click to expand...
Click to collapse
Yeah I'm not going to use samkey.. thanks for your help