unable to change csc country code - Samsung Galaxy A50 Questions & Answers

I guess I followed almost every idea here on the forum. But is there a way to change the csc code ?
thanks in advance

did you successed in changing CSC - I have FN version and no luck
I notice that was sugessted to make OEM unlock before doit it but in this case I do not know if Knox will not be triggered.

Adooni said:
did you successed in changing CSC - I have FN version and no luck
I notice that was sugessted to make OEM unlock before doit it but in this case I do not know if Knox will not be triggered.
Click to expand...
Click to collapse
Find correct firmware related to your phone model and download it from sammobile .Try to turn on options USB Debugging and OEM Unlock from developer options. Remove all accounts from your phone and do a hard reset and then try to flash it with odin.

no it did not allow me to change from ROM to XEO - after ROM stay - I will try next time new soft will be available but I think I try all ways I found.

Related

Help getting S9 back to stock.

Hi all,
I've searched and searched but haven't been able to find anyone else with the same issue I have with my S9, so i'm hoping somebody might be able to help me out!
Basically i installed twrp and then installed Lineageos with Odin. But after a while decided i wanted to go back to stock (there were a few things i was missing, dolby atmos, the stock camera, wi-fi calling and google pay.)
I downloaded a stock firmware from updato and installed with Odin. I used the BTU version, although my phone would have come with the XEU version as standard. I used the HOME_CSC (not sure if that is important?)
So now my phone has stock firmware and got an OTA update yesterday. But when i go into dev settings OEM unlock is greyed out and says 'Bootloader is already unlocked' and my phone is also uncertified in the play store and failed safetynet.
So i'm hoping to be able to get my phone back to the boot loader locked state and to get it certified and passing safetynet. I've waited 7 days as some people have suggested, phone was up for 170 hours but OEM unlock is the same and phone is still uncertified. My next thought is to install the XEU firmware and see if that makes any difference, but i'm not convinced it will.
Does anyone have any idea on how i can fix this please??
evjohns said:
Hi all,
I've searched and searched but haven't been able to find anyone else with the same issue I have with my S9, so i'm hoping somebody might be able to help me out!
Basically i installed twrp and then installed Lineageos with Odin. But after a while decided i wanted to go back to stock (there were a few things i was missing, dolby atmos, the stock camera, wi-fi calling and google pay.)
I downloaded a stock firmware from updato and installed with Odin. I used the BTU version, although my phone would have come with the XEU version as standard. I used the HOME_CSC (not sure if that is important?)
So now my phone has stock firmware and got an OTA update yesterday. But when i go into dev settings OEM unlock is greyed out and says 'Bootloader is already unlocked' and my phone is also uncertified in the play store and failed safetynet.
So i'm hoping to be able to get my phone back to the boot loader locked state and to get it certified and passing safetynet. I've waited 7 days as some people have suggested, phone was up for 170 hours but OEM unlock is the same and phone is still uncertified. My next thought is to install the XEU firmware and see if that makes any difference, but i'm not convinced it will.
Does anyone have any idea on how i can fix this please??
Click to expand...
Click to collapse
HOME_CSC does not reset the device, CSC does, chances are some of the root stuff / system modified files are still present causing these problems
Factory reset, if that doesn't work, flash again but use CSC this time
*Detection* said:
HOME_CSC does not reset the device, CSC does, chances are some of the root stuff / system modified files are still present causing these problems
Factory reset, if that doesn't work, flash again but use CSC this time
Click to expand...
Click to collapse
Thanks, I'll try that again later. Any idea whether it matters if i use the XEU or BTU firmware?
evjohns said:
Thanks, I'll try that again later. Any idea whether it matters if i use the XEU or BTU firmware?
Click to expand...
Click to collapse
Probably won't be able to switch to BTU if you were originally on XEU, BTU is multiCSC and contains XEU so the phone will default to it's original CSC
The firmware will flash fine, but if you check the CSC it will likely still be on XEU unless you managed to change it when you were custom
*Detection* said:
Probably won't be able to switch to BTU if you were originally on XEU, BTU is multiCSC and contains XEU so the phone will default to it's original CSC
The firmware will flash fine, but if you check the CSC it will likely still be on XEU unless you managed to change it when you were custom
Click to expand...
Click to collapse
Yep you're right, it's still XEU. I'll try a factory reset. I'm hoping the OTA update may have fixed a few things.
Can you lock the bootloader back?
parnunu said:
Can you lock the bootloader back?
Click to expand...
Click to collapse
I did a factory reset, then flashed the stock ROM again and used CSC, but the boot loader is still unlocked. I don't have the option to re-lock it, so seems like maybe you can't
Just in case this helps anyone else, I did a complete reset of the stock ROM using @rifek4 instructions from https://forum.xda-developers.com/galaxy-s7/how-to/guide-onelatest-stock-fw-csc-root-t3702963
But i'm still not able to re-lock the boot loader. So going to leave it now and hope the option comes back after 7 days.
rifek4 said:
https://forum.xda-developers.com/showpost.php?p=76388485&postcount=51
Click to expand...
Click to collapse
Thanks for replying. Do you think that method would help me to re-lock the boot loader?
When I go to the settings the OEM unlock says "boot loader is already unlocked"
Basically all I want to do is get safety net to pass again, and it seems that having an unlocked boot loader makes it fail.
Just in case this helps anyone else.
I downloaded magisk 16.7 beta, 16.6 caused my OS (lineage 15.1) to crash, but 16.7 was fine. I installed universal safety net fix for magisk, beta version. Installation said it failed, but when I rebooted it had worked!
Safety net now passes, device is certified in play store and Google pay is working fine. As @rifek4 said, bootloader lock has nothing to do with safety net (although I've seen a lot of people claiming it does).
I waited 7 days then disabled oem unlock in the developer option.
DONE.
None of skip wait time method work for me.

Is it possible to change my XSG build to VOD without messing with my OEM unlock?

Hello all. My 935f came with firmware XSG for United Arabic Emirates but I am in the UK and would like to flash VOD instead. I tried as soon as I got the phone with odin but got some error (don't remember exactly but f.w. 2 expected 1?). Anyways, 7 days have since passed and I have access to OEM unlock. 2 questions:
1) does the firmware (XSG vs VOD) changes anything at all?
2) if so, how could I flash this without losing OEM unlock.
Thanks a lot!
Flashing firmwares doesn't effect OEM unlock and I'll install Vodafone bloat, go for btu if you're in the uk
ASHLEY117 said:
Flashing firmwares doesn't effect OEM unlock and I'll install Vodafone bloat, go for btu if you're in the uk
Click to expand...
Click to collapse
Thanks for this. Do you just flash using Odin? It won't let me gives some kind of SW Rev error . Can it be because of the baseband? I am on BRG8 with build number BRH1 trying to flash BRF8...
batpoil said:
Thanks for this. Do you just flash using Odin? It won't let me gives some kind of SW Rev error . Can it be because of the baseband? I am on BRG8 with build number BRH1 trying to flash BRF8...
Click to expand...
Click to collapse
G960FXXU2BRGA
Check you'e not trying to downgrade the bootloader as shown highlighted here, check yours in download mode (B:1 or B:2)
*Detection* said:
G960FXXU2BRGA
Check you'e not trying to downgrade the bootloader as shown highlighted here, check yours in download mode (B:1 or B:2)
Click to expand...
Click to collapse
Working fine now, thanks so much for this!!
batpoil said:
Working fine now, thanks so much for this!!
Click to expand...
Click to collapse
:good:

Stoping this damn RMM State Prenormal

Hi there.
I've been stuck with RMM State Prenormal on my Galaxy A8 2018 for 3 months, waiting for this to be gone. Nothing to do, after 3 months of uptime, it still there.
Many tricks with time and date hasn't worked anymore, but finally I just success to bypass this s***.
What I've done :
_Install stock rom from original carrier (BOG for me, I were on XEF for deleting bloatwares).
_At boot, do NOT put your Google account and Samsung account, only Wi-Fi and that's all.
_When install wizard is finished, do NOT activate Developpers Options. Go directly at time and date, set it 8 days before after desactivate "Auto time and date".
_Go to System Update. Then untick "auto update" and check for update.
_Reboot.
_Go back to actual time and date, check again for update.
_Only NOW, activate Developpers Options and OEM Unlock should be there.
It worked for me after MANY MANY tricks, attempts, and hopeless. This way given me another luck to root my phone and now I'm done and free with it.
Sorry if my english is sometimes bad. Hoping I've helped some users.
Regards !
Edit : I did it on bootloader V3 (U3BRJ4).
I hope it actually works with other a530f
because I have a530w and a530w doesn't have rmm prenormal in bootloader, I can't really test this
Yup, canadian and some versions of samsung smartphone (Verizon or something else if I don't mistake ?) doesn't have any method to unlock their bootloaders because they are locked by default and forever. But I've posted it for those who have international variant (SM-A530F for me).
Doghan13 said:
Yup, canadian and some versions of samsung smartphone (Verizon or something else if I don't mistake ?) doesn't have any method to unlock their bootloaders because they are locked by default and forever. But I've posted it for those who have international variant (SM-A530F for me).
Click to expand...
Click to collapse
no, I mean that Canadian variant of a8 is exactly the opposite of what you said, rmm is always unlocked, so oem unlock is always there
and a8 is the only exynos Samsung device in canada so we're lucky we didn't get any snapdragon version or that would be locked forever
Oh, mea culpa. I thought it was like Galaxy S4 who were totally locked (received one from Canada to France, last year, I were disapointed that is not GT I9500 but SGH I337M).
But the result stay the same, this is for unlocked bootloader that can be "locked" by RMM State ^^
Hello, I want to test tous method and I have an dummy question, To install stock rom, I have To flash with Odin an original firmware from sammobile and if it's yes what file I have To flash
Thx
(Sorry for my bad English I'm French ^^)
angy12 said:
Hello, I want to test tous method and I have an dummy question, To install stock rom, I have To flash with Odin an original firmware from sammobile and if it's yes what file I have To flash
Thx
(Sorry for my bad English I'm French ^^)
Click to expand...
Click to collapse
once you downloaded it, extract zip file, then there should be 5 files, dont worry about the HOME_CSC, that leaves us with 4 files, put them in the correct position on odin, AP to AP slot, etc
Hi, I've tried many times with différent BL but nothing To do' OEM doesn't appears and always state Prenormal :/
I'm on bootloader V3
It's a pity that after root we lose all the guarantees through knox
Thread cleaned:
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adek89 said:
It's a pity that after root we lose all the guarantees through knox
Click to expand...
Click to collapse
the only thing that has irritated me so far about knox is losing samsung pay
not correct i'm on a530w and i can't access oem unlock. however i'm frp locked.... anyone know anything i can do to get back into my phone?
vibespredah said:
not correct i'm on a530w and i can't access oem unlock. however i'm frp locked.... anyone know anything i can do to get back into my phone?
Click to expand...
Click to collapse
call samsung or use a third party unlocking service is all im aware of
vibespredah said:
not correct i'm on a530w and i can't access oem unlock. however i'm frp locked.... anyone know anything i can do to get back into my phone?
Click to expand...
Click to collapse
flash stock firmware
ive never turned this thing off for 168 hours and i CAN root it. Prenormal be damned!!
youdoofus said:
ive never turned this thing off for 168 hours and i CAN root it. Prenormal be damned!!
Click to expand...
Click to collapse
Go development settings and if you see the oem and able to check that yes you root.
mchlbenner said:
Go development settings and if you see the oem and able to check that yes you root.
Click to expand...
Click to collapse
oh, i know. this was a statement, not a question
Doghan13 said:
Hi there.
I've been stuck with RMM State Prenormal on my Galaxy A8 2018 for 3 months, waiting for this to be gone. Nothing to do, after 3 months of uptime, it still there.
Many tricks with time and date hasn't worked anymore, but finally I just success to bypass this s***.
What I've done :
_Install stock rom from original carrier (BOG for me, I were on XEF for deleting bloatwares).
_At boot, do NOT put your Google account and Samsung account, only Wi-Fi and that's all.
_When install wizard is finished, do NOT activate Developpers Options. Go directly at time and date, set it 8 days before after desactivate "Auto time and date".
_Go to System Update. Then untick "auto update" and check for update.
_Reboot.
_Go back to actual time and date, check again for update.
_Only NOW, activate Developpers Options and OEM Unlock should be there.
It worked for me after MANY MANY tricks, attempts, and hopeless. This way given me another luck to root my phone and now I'm done and free with it.
Sorry if my english is sometimes bad. Hoping I've helped some users.
Regards !
Edit : I did it on bootloader V3 (U3BRJ4).
Click to expand...
Click to collapse
My friend i try this method also TWRP installed done but when i wipe and format after that still same so please can u tell me what must i do?
i have this file G955FXXU4CRL3 i followed this both post
1st This
2nd this
but still same to same now please give me perfect and working solution.
Thx
Yah, but how to install stock rom from original carrier if we cannot flash it by odin ? As longer oem unlock is not there any more to activate it ? And nothing go throu odin no root no rom or custom recovery ?
Pro Cal said:
Yah, but how to install stock rom from original carrier if we cannot flash it by odin ? As longer oem unlock is not there any more to activate it ? And nothing go throu odin no root no rom or custom recovery ?
Click to expand...
Click to collapse
You don't have oem unlock to use Odin.

Samsung S20 Plus - SM-G985F CSC- INU No OEM unlock option in developer settings

Hey guys,
So I got Samsung Galaxy S20 Plus but there is no OEM unlock option in my developer option settings.
I want to root and upgrade the phone and flash custom firmware. I can't do it until bootloader is unlocked.
I am currently on official latest Samsung firmware Android 11
Model - SM-G985F
CSC- OXM_INU
Any help will be greatly appreciated.
Have you checked your rmm state in download mode
TheMadScientist said:
Have you checked your rmm state in download mode
Click to expand...
Click to collapse
Hi,
Thanks for your reply.
Please see download mode image attached.
jumbobombo said:
Hi,
Thanks for your reply.
Please see download mode image attached.
Click to expand...
Click to collapse
According to your device it shows oem unlock l. Which means locked. This device looks to have Knox guard mdm service. Looks to be leased. It is permanently locked until removed from Knox mdm server.
TheMadScientist said:
According to your device it shows oem unlock l. Which means locked. This device looks to have Knox guard mdm service. Looks to be leased. It is permanently locked until removed from Knox mdm server.
Click to expand...
Click to collapse
Ohh. Is there any way to solve this?
Will installing official firmwares in Sammobile through Odin help?
Hi, maybe this will help you:
This dude also don't have OEM unlock option (he have s20 ultra G988B) but after change date time its show up. Try it.
jumbobombo said:
Ohh. Is there any way to solve this?
Will installing official firmwares in Sammobile through Odin help?
Click to expand...
Click to collapse
No it needs to be paid off and removed from mdm Knox server by the leases company
dusanl said:
Hi, maybe this will help you:
This dude also don't have OEM unlock option (he have s20 ultra G988B) but after change date time its show up. Try it.
Click to expand...
Click to collapse
His isn't that issue. Look at his download mode info. Bootloader l. Which means locked. Any that can be unlocked display a u I believe. I had this issue on another device. It's all caused by Knox guard and buying subsidized device
jumbobombo said:
Hey guys,
So I got Samsung Galaxy S20 Plus but there is no OEM unlock option in my developer option settings.
I want to root and upgrade the phone and flash custom firmware. I can't do it until bootloader is unlocked.
I am currently on official latest Samsung firmware Android 11
Model - SM-G985F
CSC- OXM_INU
Any help will be greatly appreciated.
Click to expand...
Click to collapse
Hey, did you solved it? bought SM-G986B with same problem - OEM on (L)
Hey brother have you solved that issue ? I've the same problem too, no OEM unlock option.
Hey,
It will depend on your baseband version if you have a snapdragon S20/S20+/S20U. See the thread below about how it can be done and what baseband/bootloader is required to unlock.
no OEM Unlock toggle in dev options
as stated in the title on my s20 plus (SM-G968W) there is no toggle for OEM Unlock, its been a long time since ive tried to root and from what ive been able to pick up from googling is it may not be supported for my country or cpu manufacturer...
forum.xda-developers.com

Question Unable to unlock bootloader Samsung Galaxy S22 SM-S901B/DS

Hello everyone.
I recently bought a Samsung Galaxy S22 SM-S901B/DS 256MB in the UK. I'm trying to unlock the bootloader to get root with Magisk.
First, I updated the operating system to the latest version available. After that I managed to toggle the OEM unlocking in the Developer Options but when I restart to Download mode I don't get the option to long press the volume up key to finish the process. There's a line that says "OEM UNLOCK: ON(U1)". That very line read "OEM UNLOCK: ON(L1)" before I toggled the option in the Developer section.
I tried to install an AP file modified by Magisk with Odin 3.14 but at the end of the process I get the error "Custom binary (VBMETA) blocked due to remaining installment balance" and I have to flash the original OS from scratch to be able to use the phone again.
Could anyone please help me here?
AFAIK, currently, there is no way!
shafeeqmk said:
AFAIK, currently, there is no way!
Click to expand...
Click to collapse
Hi Shafeeqmk. Thanks for your reply.
Could you please elaborate or give me some links where I can read some more?
Kind regards
Try this and write feedback:
1. Turn off device
2. Connect one end of USB to PC
3. Press and hold Vol Up and Down keys simultaneously .. then Connect USB to device.
4. Keep holding the keys until you see BL Unlock menu.
5. Long Press Vol UP
6. Device will auto reboot multiple times and then prompt to Factory reset
7. Complete the Factory Reset and reboot to System
8. Wait few minutes, finish Welcome setup connect WiFi to register OEM unlock.
NextGenMagisk said:
Try this and write feedback:
1. Turn off device
2. Connect one end of USB to PC
3. Press and hold Vol Up and Down keys simultaneously .. then Connect USB to device.
4. Keep holding the keys until you see BL Unlock menu.
5. Long Press Vol UP
6. Device will auto reboot multiple times and then prompt to Factory reset
7. Complete the Factory Reset and reboot to System
8. Wait few minutes, finish Welcome setup connect WiFi to register OEM unlock.
Click to expand...
Click to collapse
That's what I get at step 4. No matter how long I press Vol Up + Vol Down, i can't see the option to unlock BL.
Looks like some restrictions for unlocking are enforced by the region specific Firmware.
You can try to flash alternate stock firmware from different region (probably Asia).
This could hard brick your device. So, it is your choice to proceed or stick with current Working Firmware without root.
chinchulin01 said:
That's what I get at step 4. No matter how long I press Vol Up + Vol Down, i can't see the option to unlock BL.
Click to expand...
Click to collapse
It might be that you are already bootloader unlocked
Try installing twrp for your s22
NextGenMagisk said:
Looks like some restrictions for unlocking are enforced by the region specific Firmware.
You can try to flash alternate stock firmware from different region (probably Asia).
This could hard brick your device. So, it is your choice to proceed or stick with current Working Firmware without root.
Click to expand...
Click to collapse
Thanks for your reply.
Do you know of any specific firmware that allows to unlock the bootloader for this specific model?
Can I cross flash a firmware from a different region?
Can I downgrade my firmware?
Regards
chinchulin01 said:
Thanks for your reply.
Do you know of any specific firmware that allows to unlock the bootloader for this specific model?
Can I cross flash a firmware from a different region?
Can I downgrade my firmware?
Regards
Click to expand...
Click to collapse
1. You can find some clues here:
Guide to root Galaxy S22 (B/E/N/0), unlock bootloader and flash official firmware (noob friendly)
Your warranty is now void. If you root your device, Your KNOX status will be tripped. You can still pass the safety net after you root if you follow the instructions. I am not responsible for bricked devices, dead SD cards although it is not...
forum.xda-developers.com
2. I have not tested cross flashing Samsung Firmware so I cannot give any feedback.
3. Downgrade from A12 to A11 will certainly fail. I have tested this just last month.
> "Custom binary (VBMETA) blocked due to remaining installment balance"
That's seems like another layer of protection by Samsung, so that you first pay off the loan for the phone, and then you can root it.
hi @chinchulin01 ,
is there any news for the root?
At what point do you get stuck?
Xmaster111 said:
hi @chinchulin01 ,
is there any news for the root?
At what point do you get stuck?
Click to expand...
Click to collapse
Hi. I'm at the same spot I was before.
I'm trying to follow this guide
Guide to root Galaxy S22 (B/E/N/0), unlock bootloader and flash official firmware (noob friendly)
Your warranty is now void. If you root your device, Your KNOX status will be tripped. You can still pass the safety net after you root if you follow the instructions. I am not responsible for bricked devices, dead SD cards although it is not...
forum.xda-developers.com
For my phone model they use a EVR firm, so I downloaded SamFw_FRP_Tool_v3.0 and changed the CSC of the phone to EVR. I downloaded the most recent EVR firm and I tried to flash it with Odin 3.14.1 modified, but I keep getting a Fail message.
No idea what to do next.

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