Flashing 3 UK firmware to XEU unbranded phone? - Galaxy S6 Q&A, Help & Troubleshooting

As 3 UK now support VoLTE I want to flash the latest VoLTE 3 branded firmware to my unbranded phone but not sure how to go about it.
Is it just as simple as flashing the 3 firmware or is it a bit more complicated? I've heard stuff about pit files and not being able to sign them so not been able to flash carrier specific stuff to phone.
Anyone successfully done this?

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?

from unlocked carrier to locked carrier!

I have a samsung s7, I had some problems with it so I had to reinstall it via Odin. I downloaded a firmware called SM-G930f Three sweden. and since then the phone was locked to three sweden. is it even possible?? How and why? I downloaded other software but the problem persists. Is there even a solution? I could use any sim card before i installed the Wrong firmware
I don't think it's possible for carriers to retroactively lock and unlocked device, each country and carrier has their own firmware which can affect your network compatibility if you're using the wrong one.
Try finding a non-carrier specific firmware from updato.com or sammobile.com and flashing that, you can also try flashing the UK BTU firmware since it's the stock unbranded firmware.
Start with just flashing home_csc and nothing else if you don't want to lose any data, but if you want to do a full flash them all 4 files using normal CSC.

SM-G955FD Oreo Firmware on SM-G955N

Hello amazing XDA devs,
I need a bit of advise and help with flashing oreo firmware on my device. I have already done a lot of research already but have failed to find any satisfactory answer. So here is my story,
I purchased my galaxy s8+ from korea. Model number is G955N. I wasn't able to get volte signal on it hence, rooted it and changed the csc to India.
In the process I also had to update my BL to AQL3.
I am now trying to flash an indian firmware on my korean device. i.e. installing SM-G955FD firmware on SM-G955N device. I undestand hardware of both the devices (korean and indian) are same. So, there should not be any problem in this cross flashing of firmware. However, ODIN doesn't allow this.
Here are my few queries which I hope you can help me with
1) Would it allow me to flash *FD firmware on *N device if I use prince comsy odin or some other custom odin?
2) Do I need to flash *N oreo BL if I decide to flash any other custom oreo rom which supports F/FD/N variants?
3) Where can I find *N oreo BL and AP to flash if only option is to install custom oreo rom?
4) If I flash oreo firmware for *N variant, would I loose my csc changes and I will have to start all process again to get back volte signal?
I know this is a long list of question. But, I am sure a lot of people have these queries and it will help all of them in understanding the process and upgrade their devices if these questions can be answered.
Would appreciate your help on this matter.
Thanks,
I got it..just flashed the oreo rom from twrp and everything seems to be working fine.
hello. which custom did you flash ? also need it. thanks
I have my G955N made 2 sims aleady.
I observed that the developer did the following steps:
1. They made it support 2 sims: IMEI guru software
2. They flashed custom that supported G955X:Renovate ICE in xda
3. They changed 1 slot sim tray with 2 slot sim trays.
4. I observed that BL and CP are of G955N but AP and CSC are else from G955X.
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.

Can I flash a firmware with a different CSC code?

I recently bought an unlocked AT&T Samsung S20 ULTRA 5G (SM-G988U), it doesn't get any OTA updates, I found out that I would need an AT&T sim card to do so but I'm not an US resident, so I can't get one.
Since AT&T doesn't publicly publish their firmware files and I want to update my phone, I was wondering if flashing my phone using another firmware with a different CSC code like USC (US cellular), would be risky or is it a safe procedure?
This would be my first time doing this procedure and that's the only part that really got me thinking.
Thanks!
U firmware is identical, no matter which carrier it's from. So if AT&T's latest release ends in UH2 and there is also a UH2 firmware from US Cellular, flashing it would be just like flashing the AT&T firmware, if it were available
Also have same question I have Samsung S20 . SM-G988U , service provider software version SAOMC_SM-G988U_OYN_ATT_RR_0018ATT/ATT/ATT Baseband Version G988USQS2SUE2, I am not able to get new updates as I am not in US, I need suggestion which firmware of android 12 I should update on my phone.

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