Question Flashing firmware with a different CSC - Samsung Galaxy A12

Hi!
I have a Galaxy A12 model SM-A125U with TMK region csc limited to Metro T-mobil
I would like to flash the phone with a firmware for the unbranded phone XAA region CSC.
The new model firmware is SM-A125U1_XAA
I don't know if I will brick the phone since it is network locked to Metro Tmobil.
The unbranded model # has a "1" after the model # but I am hoping it is the same model only unbranded.
Any suggestions or knowledge shared will be appreciated.
I apologize if I posted in the wrong place.
Thanks

flaco#1 said:
Hi!
I have a Galaxy A12 model SM-A125U with TMK region csc limited to Metro T-mobil
I would like to flash the phone with a firmware for the unbranded phone XAA region CSC.
The new model firmware is SM-A125U1_XAA
I don't know if I will brick the phone since it is network locked to Metro Tmobil.
The unbranded model # has a "1" after the model # but I am hoping it is the same model only unbranded.
Any suggestions or knowledge shared will be appreciated.
I apologize if I posted in the wrong place.
Thanks
Click to expand...
Click to collapse
In theory, it "should" be safe as long as the binary of what you are flashing is not lower than the binary what is currently installed on your device. Keep in mind that flashing the X firmware will not have any effect on unlocking the device and will not allow you to activate the device on a different network.

Thanks Droidriven,
I don't know how to check the binary of the file nor what it is.
Can I flash the firmwareto my phone with odin even though my bootloader isn't unlocked?

Related

SM-G930V purchased in Australia

Hi All,
I have a moderate experience in flashing firmwares and modding my samsung devices over the years.
I have recently purchased an S7 which is unfortunately a SM-G930V model, i thought it would have been the SM0G930F which would have made life much easier.
I want to know if it is possible to get the original Australian firmware or even generic stock firmware on this device?
My issue is with the network settings where i have manually put in APN settings my match my carrier and 4G coverage in australia.
If not am i able to just flash a different baseband to this device preferably Australian?
I have read that flashing a different model firmware will soft brick the device, i just want some insight before i start breaking things, also what are my options.
Much appreciated, thanks, Will
You have the snapdragon s7, you can't flash the exynos 930f firmware on it, you can only flash the american firmware. You might have luck with the 930u unbranded firmware just do some research on it.
Thanks mate,
I'm going to flash this firmware using ODIN, do you know if it will be successful?
https://forum.xda-developers.com/att-galaxy-s7/how-to/xda-community-love-g930u-t3415875
not sure how to check my bootloader version etc
No clue, goto the verizon subforum and see if anyone flashed the 930u firmware on their 930v.
Just tried to flash the firmware to my phone and recieved an error, the phone is now stuck at download mode with error:
sw rev check fail : [system] fused 3 > binary 4
this means the bootloader won't accept the firmware?
LOL, guess ill try another firmware.. Any ideas?

How to enable VoLTE on SM-G930F?

I was wondering if it's possible to enable VoLTE on an SM-G930F running BTU firmware on an AT&T carrier. Is there any way to get things like WiFi Calling and VoLTE on it, or am I just screwed since I'm using the international variant of the phone?
When I first got it brand new from Wal-Mart, it was running TTT firmware (from Trinidad and Tobago for some reason) and showed normal 3G, 4G, and LTE symbols on my status bar. Since I wanted to get the Nougat update early, I flashed BTU which switched the symbols to H, H+, and 4G. Does that have anything to do with it?
Thanks.
You're certain it's a G930F? And from Walmart of all places? Exynos isn't meant to be sold in the US.
If it's a G930F and you have TWRP you can flash the CSC tool in the development section which has the US carriers, and CSC is what enables VoLTE.
If it's a US snapdragon model you could flash the AT&T CSC via Odin without needing TWRP.
Beanvee7 said:
You're certain it's a G930F? And from Walmart of all places? Exynos isn't meant to be sold in the US.
If it's a G930F and you have TWRP you can flash the CSC tool in the development section which has the US carriers, and CSC is what enables VoLTE.
If it's a US snapdragon model you could flash the AT&T CSC via Odin without needing TWRP.
Click to expand...
Click to collapse
If OP successfully flashed BTU then it has to be a Exynos G930F, but I agree, most phones sold in the US claiming to be the G930F are modded Snapdragons faked to look like it, but they obviously won't allow a Exynos ROM to be flashed to them, so in this case OP has got a real Exynos
Could be the modem (CP) part of the firmware controlling which carrier services you can receive in your region, not sure I'd recommend flashing a US modem to a UK firmware though, unsure what would happen, although the G930F is pretty straight forward to unbrick as long as you can get back into download mode
Beanvee7 said:
If it's a G930F and you have TWRP you can flash the CSC tool in the development section which has the US carriers, and CSC is what enables VoLTE.
Click to expand...
Click to collapse
Where is this CSC tool? I'm not sure what you mean by "development section". I have an Oreo G930F and I'm trying to get VoLTE to work with AT&T.
Feenix0 said:
Where is this CSC tool? I'm not sure what you mean by "development section". I have an Oreo G930F and I'm trying to get VoLTE to work with AT&T.
Click to expand...
Click to collapse
It hasn't been updated with the newer versions of Android so it's not really a thing anymore.
Next best thing is to download the entire firmware package for your carrier from somewhere like updato then flash only the home_CSC file. Although iirc this might now work if mixing and matching models, which is why the CSC flash tool was a thing.
Beanvee7 said:
It hasn't been updated with the newer versions of Android so it's not really a thing anymore.
Next best thing is to download the entire firmware package for your carrier from somewhere like updato then flash only the home_CSC file. Although iirc this might now work if mixing and matching models, which is why the CSC flash tool was a thing.
Click to expand...
Click to collapse
The trouble is that the G930F was never officially released on US markets, so I can't find a US firmware. I'd gladly use another market's firmware if I knew it would support AT&T VoLTE and "LTE only" mode, but I have no idea how to figure that out!
So it turns out that I have the Canadian SM-G930W8 (as shown on the download mode screen), not the G930F (as shown everywhere else). Identical hardware, but I can only flash Canadian firmware.

Galaxy s7 g930p firmware guide

Hello i am new here i have some questions plz.clear my mind issue is i have galaxy s7 g930p when i dial*#1234# it shows AP, CP G930P AND CSC G930F what is this??? I want to update oreo which firmware should i use i am in pakistan and already use os marshmallow
Boot into download mode (Power + Home + Vol Down) and check what model number it says you have there.
Then download the firmware specifically for that model and nothing else.
Thanks for reply... in download mode its shows g930p and also in settings same model name and also back on phone side same but in recovery mode shows g930v
Here is some detail...
In the Downloads mode SM-G930P is displayed,
in the Phone Info also SM-G930P,
in the manufacturer "Samsung / Verizon",
product code "Not Active",
Original CSC code is empty,
CSC firmware code VZW,
active VZW firmware code,
available CSC codes are empty,
SCS country USA / HK,
Bootloader version G930PVPU4APL6,
PDA version G930PXXU1BPIA,
version CSC G930FXXU1BPIA,
radio module version G930PVPU4APL6.
Which model firmware should i download
Download mode is the only value that can't be changed by modifying the firmware, so it's your true model.
The G930P is the US Sprint S7 model running Snapdragon, so you can use any Snapdragon firmware with Odin (G930U/V/T/P) but don't attempt to flash anything Exynos as it will brick your phone (G930F/FD/W8/K)
G930U is the carrier unlocked generic firmware, so the best one to use if you don't want bloat etc.
Thank u so much can i now install latest update of g930u? in odin fill all boxes with g930u files also csc g930fxxu1bpia with g930u file?
Thank you so much sm-g930u firmware with oreo now working in my sm-g930p no any issue here thanks

I need help to identify the correct firmware for my S7 (SM-G930F)

I bought a new S7 (G930F) at ebay. When it arrived i wanted to update to the newest firmware, but i got an error notification.
I contacted Samsung and they told me to send it in.
They checked it and told me, that they are not willing to help because the phone is flashed with a wrong firmware. I bought it as a new device. This is unpleasant.
The seller doesn't answer my messages, so i thought maybe i can flash a new firmware by myself. The actual firmware is working but it is outdated. (1. August 2018)
But how can i find out which firmware is correct for this phone? How to say if it is exynos or snapdragon?
The phone information
Modellnummer: SM-930F
Seriennummer: 5AF94C0C
Buildnummer: R16NW.G930FFXXU7CRH2
Kernel: 3.18.71-14274519 [email protected] #1
Basisband: G930FFXXU7CRH2
Android 8.0.0
Samsung Experience: 9.0
I would like to flash the latest firmware and i want to use the phone in germany. Can somebody identify the correct firmware?
Thanks a lot
What does the phone say in download mode? The ROM can be modified to lie about the model and firmware, but download mode will tell you the truth.
If download mode says it's a G930F then it's Exynos, if it says G930U/V/T/A then it's Snapdragon.
If it is a G930F then good news is you can just flash whatever G930F firmware you want over top what's on it. If it's Snapdragon then you're a bit stuffed, you can't flash Exynos firmware onto Snapdragon.
For updating it if it is G930F my recommendation would be to find out the region code for your device, e.g. from here https://updato.com/firmware-archive...act=1&r=DBT,XEG,DCO,DDE,VIA,DTM,VD2&v=&rpp=15 then download the firmware using that region code with SamFirm tool https://forum.xda-developers.com/galaxy-tab-s/general/tool-samfirm-samsung-firmware-t2988647
Download Mode says SM-G930V
I'm doomed
Yep that's a common scam. If you can't return to seller the next best thing would be to flash the G930U firmware, which is the generic unlocked firmware for Snapdragon.
It won't give you the equivalent experience, but it will remove any bloat and give you a carrier unlocked phone experience.
You can use the same methods I mentioned to get your hands on the latest G930U firmware and update the device, but you may need this specific Odin version to flash G930U over G930V https://forum.xda-developers.com/android/software/patched-odin-3-13-1-t3762572
Thanks. Does TMK, TFN, TMB,... make a difference when the phone is used in germany?
Should i flash all 5 files:?:
AP
BL
CP
CSC
Home
I tried and my result is: Flashing only AP was not enough. Flashing all 5 worked fine for me. I chose TMK and even LTE is working. Thanks a lot.
Glad its working, for reference CSC and Home_CSC are both CSC files and you usually pick just one. Home_CSC doesn't do a data wipe, CSC does.
But when changing from G930V to G930U it's always safest to do the CSC wipe.

How To Guide OTA update issue

Hello,
I got a samsung galaxy s22 ultra which is a USA model. I was having a concern as when i change my csc code to XAA or GCF I don't get ota updates i have to manually update my phone via odin or change my csc to carrier based ones like usc or usc then i get ota update...My phone's model number is SM-S908U and whenever i try to check firmware on sammobile for my model number it doesn't shows any firmware for XAA....
I did some research on my end and some people are saying that XAA doesn't belongs to SM-908U series of phones it is for SM-S908U1 model.....
I have attached a screenshot of my model number and csc of my phone, can anyone guide me if the firmware and model number of my phone are corrct according to the csc code n all stuff and is there any solution for that ota update problem
your firmware is correct XAA ( AIO , ATT MVNO )
for new Samsung device , if you change original CSC you will loose OTA update
GCF | USA (WORLD WIDE)
My question is that isn't XAA csc belongs to U1 model rather than U models
And for csc part when i got the phone my csc was GCF/GCF,XAA/XAA
as you can see in the picture , i'm talking abot S918U and not U1
I want to know if there is any way to check wether my device was U or U1 software initially....
Because i am javing doubt that the person who sold me this has changed the software manually

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