Hi All,
I have read that to debrand a Samsung Galaxy S20 phone (mine is SM-G981B) you can't just do a straight flash with Odin using debranded firmware and that you instead need to first change the CSC using SamKey. However my issue is that the CSC for the carrier my phone is currently on (United Kingdom EE) seems to be the same as debranded firmware (United Kingdom BTU). You can see here: sammobile.com/samsung/galaxy-s20/firmware/SM-G981B/BTU they both have the same CSC (G981BOXM1ATCT).
I also came across this guide: samsungsfour.com/tutorials/how-to-install-stock-rom-on-galaxy-s20-s20-plus-s20-ultra-s20-5g.html for debranding, however without any other sources to back it up, I am a bit reluctant to try it out in case it causes any issues.
Any help with this would be greatly appreciated thanks.
Rave7 said:
Hi All,
I have read that to debrand a Samsung Galaxy S20 phone (mine is SM-G981B) you can't just do a straight flash with Odin using debranded firmware and that you instead need to first change the CSC using SamKey. However my issue is that the CSC for the carrier my phone is currently on (United Kingdom EE) seems to be the same as debranded firmware (United Kingdom BTU). You can see here: sammobile.com/samsung/galaxy-s20/firmware/SM-G981B/BTU they both have the same CSC (G981BOXM1ATCT).
I also came across this guide: samsungsfour.com/tutorials/how-to-install-stock-rom-on-galaxy-s20-s20-plus-s20-ultra-s20-5g.html for debranding, however without any other sources to back it up, I am a bit reluctant to try it out in case it causes any issues.
Any help with this would be greatly appreciated thanks.
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Click to collapse
Mate, all you need to do is change the csc to BTU in order to debrand. EVR and BTU csc are part of the same multi csc, however change your csc to BTU if you do not want any carrier bloatware or boot image etc.
So the only way to debrand is to use samkey? There is not a free/not payed alternative?
west2cool said:
Mate, all you need to do is change the csc to BTU in order to debrand. EVR and BTU csc are part of the same multi csc, however change your csc to BTU if you do not want any carrier bloatware or boot image etc.
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Click to collapse
Thank you very much, I'll give that a go.
denzel09 said:
So the only way to debrand is to use samkey? There is not a free/not payed alternative?
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Click to collapse
Denzel09, you can buy a single SamKey credit on eBay for £2.25 just to let you know. Search for SamKey, sort by cheapest and set "Item Location" to Worldwide.
Hello all,
I have been finding frankenstain's firmware and I am just wondering if you can change to any csc also if someone could explain the functions of these combination firmware and if you need root or any info I would appreciate that.
Thanks in advance.
You can't even flash combo firmware so how would that help?
Hello community!
I recently bought a Samsung Galaxy S20+ (SM-G985F) which is carrier branded and sim locked. I am looking to remove the carrier branding by using a unbranded firmware. I am trying to find an unbranded firmware that will not affect the functionalities of the phone ( VoLTE, VoWiFi etc..) . Would this be done by finding a firmware with same PDA but different CSC?
Current Branded Firmware:
Version G985FXXU3ATG4 / G985FOWA3ATG4 / G985FXXU3ATG4
Product Code: PGU
Would this firmware work?
Product code LUX
PDA G985FXXU3ATG4
CSC G985FOXM3ATG9
Thanks in advance for your help!
@servenaya
if you have a sim card of Guatemala and you want to keep VoLTE, VoWiFi etc.. for this country
install Version PDA G985FXXU3ATG4-CSC G985FOXM3ATG9
and change your CSC to GTO ( with préconfiguration for TIGO_CGU , PCW_PA and Claro_DR )
LUX have only préconfiguration for Luxemburg ( Proximus , POST , Tango , Telenet , Orange B and LUX )
regards
yakapa40 said:
@servenaya
if you have a sim card of Guatemala and you want to keep VoLTE, VoWiFi etc.. for this country
install Version PDA G985FXXU3ATG4-CSC G985FOXM3ATG9
and change your CSC to GTO ( with préconfiguration for TIGO_CGU , PCW_PA and Claro_DR )
LUX have only préconfiguration for Luxemburg ( Proximus , POST , Tango , Telenet , Orange B and LUX )
regards
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Click to collapse
@yakapa40, thank you! This information is very helpful. I do have a Claro Guatemalan sim and even though the carrier does not support VoLTE, or VoWifi, I would like to keep this features in case they implement them in the future. I did find a firmware with the recommended PDA and CSC (Country South East Europe, Product code: SEE, PDA: G985FXXU3ATG4, CSS: G985FOXM3ATG9). Would this firmware work? From what understand, I would have to first flash this firmware, then change de CSC with Samkey to GTO and lastly, factory restore the phone. Is this correct?
Also, would you recommend using Samkey to perform a carrier unlock before changing the CSC or could I do it later on? I read that Samkey only works for phones that dont ask for unlock code. Mine does ask for a code when I insert another carrier's sim.
Thanks in advance for your help!
save all your data
install new firmware
you have a free apk here to change the CSC:
https://forum.xda-developers.com/showpost.php?p=82858645&postcount=37
yakapa40 said:
save all your data
install new firmware
you have a free apk here to change the CSC:
https://forum.xda-developers.com/showpost.php?p=82858645&postcount=37
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Click to collapse
@yakapa40, Thank you once again. Just want to make sure that the firmware mention before is the best one to use? I have attached the software information from my phone. Please let me know your opinion.
yes all is ok with your firmware
PGU:
GTO:
yakapa40 said:
yes all is ok with your firmware
PGU:
GTO:
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Click to collapse
@yakapa40 Thank you for your help. You are extremely knowledgeable on this topic! To be honest, I just realize how little I know about flashing even though I've been doing it since 2012. I feel like I understand firmware flashing less than I did before.
I just have a last question. If I flash the firmware with a CSC NEE, and than do the CSC change to GTO, which CSC will be used for future OTA updates? What I mean is, if there is a new NEE firmware will I get it, or will I have to wait for a new GTO update? Sorry, I am little confused with all of this.
G985F OXM is a multi CSC so if you flash the firmware with a CSC NEE , you will get XEF CSC by default
, and when you change to GTO you will get GTO OTA updates
https://forum.xda-developers.com/galaxy-s20/how-to/s20-g985f-firmwares-t4060279
yakapa40 said:
G985F OXM is a multi CSC so if you flash the firmware with a CSC NEE , you will get XEF CSC by default
, and when you change to GTO you will get GTO OTA updates
https://forum.xda-developers.com/galaxy-s20/how-to/s20-g985f-firmwares-t4060279
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Click to collapse
@yakapa40, I was finally able to flash the phone. I followed the steps and got the GTO CSC and the unbranded firmware working! Thank you for helping me throughout the whole process. The only down side was that I still lost the VoLTE and VoWifi options. When I look at the Sim Card Status menu, the IMS registration Status is "not registered". :crying:
Hi Guys,
I got a F936N which is Korean. I want to change it to OXM since I am in the UAE. 5G is not working on the phone and I got some weird carrier settings for Korea.
I tried using the SamFw_Tool to change it to a CSC and also tried flashing the OXM firmware via patched Odin, it is failing.
One thing to note is that my device has 1 SIM and 1 e-SIM. The devices here in the UAE are 2 physical SIMS. Not sure if that would create a challenge. I just need 1 SIM to work.
Is there anything else I could try?
Thanks.
Bump. I have a OXM CSC tablet that I Want to change to a US CSC
Hi, I have the same issue. I got a F936N which is Korean and I want to change it to OXM as I am in India. Someone please help.
Any work around to use 5G in India ?
Hi everyone
I flashed the Egypt ROM on the S22 phone from ksa, and after rebooting I looked at the software information, it is still ksa
Knowing that I put two SIM cards from my country, Egypt, in the phone during the flashing and after booting, and the phone wasn't change the csc to Egypt ,
In addition, the CSC of KSA and EGY is the same But I want to enable call recording supported by csc egy
How is this done? I apologize for the delay and thank you
Anyone help please ?
Use samfw tool to change csc.
mohitgalaxy3 said:
Use samfw tool to change csc.
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Click to collapse
Even both of csc is the same code ? Mention attached