How to change the CSC to a specific country ??
Hello
I have the pro csc ( multi csc from vodafone). But apparently, the may update is not out yet, but for the other vodafone csc's it is. Is it possible to use a csc within vodafone like VD2 or VDF to update my device without losing de pro csc? If so, what files do I need? Only AP or...
Thnx in advance
Hi All,
I have tried searching for a solution to change CSC Code on a rooted G960F BRI model but all threads are about changing it without root (and that doesn't work).
Can someone point me to a thread maybe, that provides the steps to change CSC on a rooted phone?
You should be able to change it without root as long as the new CSC you are flashing does not contain the phones original CSC
For example BTU is Multi_CSC and contains XEU, so if your phone was originally XEU and you wanted to try and switch to BTU you cannot because the phone will automatically choose the original CSC from the Multi_CSC
You would need to flash a CSC that is either a single CSC or does not contain BRI
Look on the play store for CSC changer for a root method
*Detection* said:
You should be able to change it without root as long as the new CSC you are flashing does not contain the phones original CSC
For example BTU is Multi_CSC and contains XEU, so if your phone was originally XEU and you wanted to try and switch to BTU you cannot because the phone will automatically choose the original CSC from the Multi_CSC
You would need to flash a CSC that is either a single CSC or does not contain BRI
Look on the play store for CSC changer for a root method
Click to expand...
Click to collapse
Hey Thanks for your reply....I am currently on BRI and wanting to move CSC to XSA but XSA being single CSC and BRI multi CSC I think it is not possible yet....
Hello Community,
I have always bought factory unlock international versions of Samsung galaxy S phones from Amazon and used it outside the US (in Central America). The last time I flashed a phone was in the Samsung S4 period where a few friends had carrier branded phones, which I helped them unbranded by flashing the TTT (Trinidad and Tobago) firmware, since the PDA and CSC was the same as mine. It never gave me any issues and therefore, I never really messed with CSC before. It was easy and simple!
I recently returned to Samsung ecosystem but this time I bought a S20+ (SM-G985F) carrier branded and locked phone (Claro Guatemala). It's clear that things have gotten way complicated now.
Version: G985FXXU3ATG4 / G985FOWA3ATG4 / G985FXXU3ATG4
CSC: PGU
Thanks to another post, I was instructed to able to flash a different firmware to unbrand it. I was also instructed to change CSC to GTO, so I would not loose VoWIFI and VoLTE. Apparently now just flashing the firmware does not change the CSC, there is another process for that. I performed the change but still lost the options (although my carrier still doesn't support it).
version: G985FXXU3ATG4 / G985FOXM3ATG9 / G985FXXU3ATG4
CSC: GTO
I've been trying to understand how CSC works but I've been reading several contradictions. Some say that if CSCs don't match you might not get OTAs. Other say that that doesn't matter. Why couldn't I just flash the TTT as I've done before? Why did I have to change my CSC to GTO? What if I change my CSC to TPA but use it in Guatemala, would I still get OTA updates? If my device is single sim, why does my CSC GTO/GTO,GTO/PGU as a dual sim?
Who can give me a definite explanation on how to choose a correct CSC firmware? HELP!
I'm going through the same nightmare...
servenaya said:
Hello Community,
I have always bought factory unlock international versions of Samsung galaxy S phones from Amazon and used it outside the US (in Central America). The last time I flashed a phone was in the Samsung S4 period where a few friends had carrier branded phones, which I helped them unbranded by flashing the TTT (Trinidad and Tobago) firmware, since the PDA and CSC was the same as mine. It never gave me any issues and therefore, I never really messed with CSC before. It was easy and simple!
I recently returned to Samsung ecosystem but this time I bought a S20+ (SM-G985F) carrier branded and locked phone (Claro Guatemala). It's clear that things have gotten way complicated now.
Version: G985FXXU3ATG4 / G985FOWA3ATG4 / G985FXXU3ATG4
CSC: PGU
Thanks to another post, I was instructed to able to flash a different firmware to unbrand it. I was also instructed to change CSC to GTO, so I would not loose VoWIFI and VoLTE. Apparently now just flashing the firmware does not change the CSC, there is another process for that. I performed the change but still lost the options (although my carrier still doesn't support it).
version: G985FXXU3ATG4 / G985FOXM3ATG9 / G985FXXU3ATG4
CSC: GTO
I've been trying to understand how CSC works but I've been reading several contradictions. Some say that if CSCs don't match you might not get OTAs. Other say that that doesn't matter. Why couldn't I just flash the TTT as I've done before? Why did I have to change my CSC to GTO? What if I change my CSC to TPA but use it in Guatemala, would I still get OTA updates? If my device is single sim, why does my CSC GTO/GTO,GTO/PGU as a dual sim?
Who can give me a definite explanation on how to choose a correct CSC firmware? HELP!
Click to expand...
Click to collapse
Isn't the SM-G985F a Multi CSC device? Try this, go to "Settings" then "About phone". Write down your IMEI Number. Open dialer and enter *#272*IMEInumber# (In the thread replace IMEInumber with your actual IMEI Number). Press dial, you should see a screen with the list of available CSC codes for your device. Select the CSC that you want and tap the Install option.
servenaya said:
Hello Community,
I've been trying to understand how CSC works but I've been reading several contradictions. Some say that if CSCs don't match you might not get OTAs. Other say that that doesn't matter. Why couldn't I just flash the TTT as I've done before? Why did I have to change my CSC to GTO? What if I change my CSC to TPA but use it in Guatemala, would I still get OTA updates? If my device is single sim, why does my CSC GTO/GTO,GTO/PGU as a dual sim?
Who can give me a definite explanation on how to choose a correct CSC firmware? HELP!
Click to expand...
Click to collapse
I'm also new to the CSC concept, and have been looking into its function. I would recommend checking out these links for a good overview.
(I'm a new user and cannot post external links, you'll have to use a search engine to find these. If a MOD wants to change these to links, feel free!)
1 - Droid Views dot com- "Difference Between CSC and HOME_CSC (Samsung Firmware)"
2 - Droid Views dot com - "Change CSC on Samsung Devices – Samsung CSC Codes"
3 - Samsung dot com - Tech Talk - "What’s CSC on Samsung?"
4 - Android dot stackexchange dot com - "How to find my device's CSC (Country Specific Code)"
5 - https://forum.xda-developers.com/showpost.php?p=72198850&postcount=21
6 - https://forum.xda-developers.com/showpost.php?p=72321531&postcount=28
7 - technastic dot com - "CSC or HOME CSC? Which File You Should Flash in Odin"
8 - https://forum.xda-developers.com/showthread.php?t=1988202
9 - https://forum.xda-developers.com/showthread.php?t=2033894
10 - https://forum.xda-developers.com/showthread.php?t=1356325
11 - Android dot stackexchange dot com - "What do the numbers and letters in the Samsung Firmware mean?"
12 - https://forum.xda-developers.com/galaxy-s3/general/csc-codes-t2090739
What follows are my findings and my attempt to 'put it all together'.
Samsung Firmware Naming Convention
See [10] and [11]
What is a CSC?
Samsung CSC refers to the Country Specific (Product) Code. This identifies the region and carrier for which the device is configured [1,3].
This includes [7]:
Carrier branding: A CSC may be country or carrier-specific. Samsung releases the same model of a smartphone to Tab with different CSCs. For instance, if you use an unlocked or unbranded Samsung Galaxy phone in the UK, its CSC would be BTU. However, if your device is locked to a network operator, it could be VOD (Vodafone), TMU (T-Mobile), ORA (Orange), XEU (EE & Three), etc.
System Languages: These include the availability of the popular languages used in a geographical area. For example, if you own a Samsung phone in Mexico and flash the firmware meant for India with INS as CSC, you won’t be able to set Spanish, Nahuatl, or Mixtec as your phone’s system language and keyboard.
Localizations: Samsung ships its devices with geo-specific or bloat apps relevant to a country or region. Localization also determines the calendar settings and local festivals.
APN Settings: Access Point Name settings include all configurations to make a mobile device work with the network carriers of a region or country. Without these configurations, you may not be able to enjoy seamless GSM, GPRS, 3G or 4G mobile networks.
Samsung FUS: CSC also contains key info to help Samsung’s Firmware Update Server to connect to the correct update channel and roll out the proper software update to your Galaxy device via OTA.
Deep dive:
Historically, Samsung had one CSC folder on the device [8], located at /system/csc. This folder contained different XML files used to configure the device.
Code:
/system/csc
features.xml
language.xml
others.xml
customer.xml
The supported configuration options for these files have been extensively documented by other users [9].
Presently, there are two flavors of CSC files CSC and HOME_CSC. Flashing CSC performs a factory reset of the device; wiping all third-party apps, data and settings [7]. HOME_CSC is used to reinstall the firmware or updating the system, retaining apps, data, and settings.
Examining the current contents of a HOME_CSC file shows the structure has changed.
Code:
HOME_CSC_OMC_OXM_G985FOXM3ATG9_CL18862671_QB33041563_REV01_user_low_ship_MULTI_CERT/
meta-data
cache.img.lz4
optics.img.lz4
prism.img.lz4
The three image files correspond to directories found on the device root (using adb).
Code:
/cache/
backup
backup_stage
lost+found
lsb
magisk
magisk.log
magisk.log.bak
recovery
/optics/
configs
/prism/
HWRDB
app
etc
lost+found
media
priv-app
sipdb
Buried within the optics folder, we find XML files similar to the original design.
Code:
/optics/configs/carriers/single/TPA/conf
cscfeature.xml
cscfeature_network.xml
customer.xml
omc.info
How do I find and interpret my CSC?
You check your CSC by going to Settings > About Phone > Software Information > Service Provider SW Version. According to [1] you should see the following, depending on your phone's SIM capacity.
CSC Format:
AAA/BBB/CCC (Single SIM Models)
AAA/BBB,BBB/CCC (Dual SIM Models)
Click to expand...
Click to collapse
Where, according to [5]
AAA is the current CSC
BBB is the recommed CSC for your SIM (if this CSC is inside your current Multi-CSC)
CCC is the factory CSC of your phone and can´t be changed
Click to expand...
Click to collapse
Some phone info applications call these the original (CCC), firmware (AAA), and active (BBB) CSCs. For example, my SM-G985F shows
Code:
SAOMC_SM-G980F_OXM_TPA_QQ_0006
...
TPA/TPA,TPA/TPA
Which tells me that the phone was manufactured for Panama, has the Panama firmware and the recommended SIM CSCs are both for Panama. I know this because the list of CSC country codes is well documented [12].
NOTE: I came across multiple sources online that say the SIM CSC will change depending on the SIM card you have inserted. For example, [1] states
When you switch to a SIM card from a different country, your device will attempt to modify the SIM CSC. If the operation is successful, you’ll receive a popup asking to align the new information with the active CSC. This will effectively modify the configuration region, but the process requires a factory reset.
Click to expand...
Click to collapse
But this may not be true. I am in the USA using a local provider and was never prompted as described.
What does each CSC do?
So we have the three different CSCs, each of which could be responsible for configuring different parts of the phone.
Firmware
SIM
Original (factory)
I would think that the original CSC is only there to identify the original factory firmware, and is not configuring anything on the phone. The firmware CSC should tell me the current firmware loaded and the SIM CSC does ???
I will continue to look into this over the next few days. If anyone can contribute more information it would be very helpful.
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 ?