Where do I find firmware to downgrade a samsung s7 edge G935FXXU2DRC6 ? - Upgrading, Modifying and Unlocking

Hi, I'm trying to find firmware to downgrade a samsung s7 edge G935FXXU2DRC6 but have no luck finding it. As I understand it, the firmware needs to be SWREV U2 since the current software is U2 ? I have found U1 version software but not U2. When I try to apply U1 software using Odin it fails.
Thanks!

Hi, Here is the information from the download screen.
Thanks.
samsung s7 edge

After upgrading my official S7 edge firmware by using standard OS upgrade internal tool... my mobile is now in a loop, trying (without success) to restart...upgrade...restart...upgrade...
I also tried to upgrade with a new firmware (looks "too old" ?)
I got this message on a very nice light blue screen
ODIN MODE
Download Speed : Fast
Product Name: SM-G935F
Current Binary: Samsung Official
System Status: Official
FAP Lock: ON
Secure Download : Enabled
Warranty Void: 1 (0x0500)
AP SWREV: B:8 K:6 S:7
SW REV. CHECK FAIL (BOOTLOADER) DEVICE: 8, BINARY: 1
Could you help me to get the right version of the firmware to be able to install it please ? (and if you have the download link, I will really appreciate because it is so difficult to get the good firmware for restarting my phone.
And... if you know how to restart with losing my data, I will be the happiest man of the day ! ( because, with samsung internal upgrade, I though I had no risk... and I don't have a backup ) .... Thanks A LOT in advance !!!

Maybe some information, assistance, support, etc. here:
Samsung Galaxy S7 Edge
Released in Q1 2016, the Samsung Galaxy S7 Edge features a 5.5" quad HD Super AMOLED display, featuring the distinctive wrapped display edges, which can be utilized for shortcuts and notifications. It's powered by either a 2.15GHz Qualcomm Snapdragon 820 or 2.3 GHz Exynos 8890 processor...
forum.xda-developers.com

Related

SM-960F with OYN/XAA CSC. What official FW should I use to upgrade?

Hi all,
I have a s9 phone which, to me, looks like having contradictory model/FW (This is the way I bought it):
Model is: SM-960F
Service Provider SW version is: SAOMC_SM-G960F_OYN_XAA_PP_0003 ...
XAA/XAA/XAA
From what I've read, the OYN CSC is for the USA version 960U/960U1, yet I have a 960F.
I can't get OTA upgrades ("Current software is up to date")
What official FW should I flash to upgrade to the latest?
Thanks
More info on the HW
More data on the phone:
Installed CPU-Z to get some data on the hardware: According to CPU-Z It's a snapdragon 845, and the model SM-G-960U, so definitely not SM-G906F.
Why does it say SM-G960F in the "About phone" screen?
Also the Samsung health app does not work which implies this phone was rooted some time? (not rooted now)
So it looks to me I should upgrade to SM-G960U1 firmware (XAA) like what is currently installed. This should work and not enforce a factory reset
Can someone confirm?
Bump
Anybody out there?

PLEASE HELP!! Need to revert from Android 11 UI 3.1 back to Android 10 UI 2.5

I send my phone to Samsung to get warranty work done and I specifically included a note that I taped to the phone not to update my phone from UI 2.5. They did it anyway. I would like to flash my phone back from 3.1 to 2.5.
My phone is S20 Factory Unlocked (U.S. variant)
Baseband: G981U1UEU1DUB7
Kernel: 4.19.113-20937596
Build: RP1A.200720.012.G981U1UEU1DUB7
Knox: 3.7
Knox API level 33
Not sure what other info needed for someone here to suggest whether this is possible to do.
Really appreciate your help guys. thanks in advance.
konoplya said:
I send my phone to Samsung to get warranty work done and I specifically included a note that I taped to the phone not to update my phone from UI 2.5. They did it anyway. I would like to flash my phone back from 3.1 to 2.5.
My phone is S20 Factory Unlocked (U.S. variant)
Baseband: G981U1UEU1DUB7
Kernel: 4.19.113-20937596
Build: RP1A.200720.012.G981U1UEU1DUB7
Knox: 3.7
Knox API level 33
Not sure what other info needed for someone here to suggest whether this is possible to do.
Really appreciate your help guys. thanks in advance.
Click to expand...
Click to collapse
This should get you back to 2.5. If you want a different CSC go to page 10 and find more on samfw.com GL!!
Download Galaxy S20 5G SM-G981U1 (CCT) G981U1UES1BTK1 in Samfw - Samsung firmware download
Galaxy S20 5G SM-G981U1 (CCT - United States) G981U1UES1BTK1 Q(Android 10) samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅
samfw.com
JDBarlow said:
This should get you back to 2.5. If you want a different CSC go to page 10 and find more on samfw.com GL!!
Download Galaxy S20 5G SM-G981U1 (CCT) G981U1UES1BTK1 in Samfw - Samsung firmware download
Galaxy S20 5G SM-G981U1 (CCT - United States) G981U1UES1BTK1 Q(Android 10) samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅
samfw.com
Click to expand...
Click to collapse
thanks my friend. i did downgrade last week with firmware that i downloaded actually from that same site. thanks!
Users of us variant are really lucky that they still have possibility to downgrade. I have g9810 (chc/tgy/br) and cannot roll back to oneui 2.1-2.5 due to lower sw rev.

Question Got scammed, anything I can do?

Hey guys, I recently purchased a secondhand Z Fold 3 on a buy and sell website. I checked everything, IMEI and all (which was clean). I even got them to send me a video of the phone, and everything looked perfect. Even the flip case and the stylus was included. The deal was good but definitely not too good to be true.
Even after they sent it out to me, everything worked perfectly. Until I factory reset it a few minutes after getting it. After setting up the phone as normal, this is what I got after unlocking it.
Factory resetting from recover mode just takes me back here. I have no idea what to do, I was not careless, I made sure everything was ok, I'm so lost because I'm pretty good with tech but this is such a good scam and I'm just in shock. I just really cannot be losing money like this, especially when everything just seems to be getting harder everyday.
Is there anything I can do about it, even try and repair it if I can prove I bought it? Or even return it to Samsung and get some compensation? Any help is much appreciated, even if you dm if you can't say it here thanks everybody!
Images and them using it before sending it to me:
https://imgur.com/a/U9huYxD
I'm located in the EU, I've been told I can flash a new ROM using just a PC without accessing the phone, is this possible?
Tough luck man.
- Firstly I would contact the seller for a refund, otherwise threatning that I will call the police.
- The fair thing to do would be to report it to the authorities but depending on where you live, this might be a good or bad ideea. (for example in Romania where I live, I once took a lost backpack to the police station and they were mad I gave them paperwork to do, literally asking me why I did I not take it or dump it in a ditch, which they probably did after I left)
- Otherwise I would try to flash a new rom on it or something depending on what is possible on the fold 3
good luck.
Seems like a money making scam, and I would factory flash the stock firmware for your device which should sort any issues out with it via odin. Wouldn't have thought it would take more than that to be honest ?
Once the IMIE has been flagged as stolen, no amount of flashing will get you back to a usable device because no carrier will activate it.
IMEI is clean, this looks KNOX locked to me.
Model Info: MOBILE SM-F926B/DS BLACK EUB
Search Term: 353249140740263
IMEI 1: 353249140740263
Serial Number: RFCR80A9CJY
Model Desc: Galaxy Z Fold3 5G
Model Name: SM-F926B/DS
Model Number: SM-F926BZKDEUB
Warranty Status: Warranty Active
Estimated Warranty End Date: 08-08-2023
Production location: Vietnam SEV
Production Date: 08-08-2021
Country: EUROPE
Carrier: Factory Unlocked
GSMA Blacklist Status: Clean
underthewater said:
Is there anything I can do about it
Click to expand...
Click to collapse
Yes , root it , flash stock firmware F926BXXU1CVC5 and then follow and flash this :
[10.04.22] F926B I Dr.Ketan Magisk ROM I OneUI 4.1
F926B I Dr.Ketan ROM ROM Features ROM Features varies with version of ROM. For more details, read changelog post. Link available in post #3 for changelog of all versions. Must read changelog for a version you are going to install, it will...
forum.xda-developers.com
My guess is : This will get you out of that "Knox Lock", and still be able to use bank apps if you use them ...
These are XOM ( international firmwares ) you will be fine !
pvillasuso said:
Yes , root it , flash stock firmware F926BXXU1CVC5 and then follow and flash this :
[10.04.22] F926B I Dr.Ketan Magisk ROM I OneUI 4.1
F926B I Dr.Ketan ROM ROM Features ROM Features varies with version of ROM. For more details, read changelog post. Link available in post #3 for changelog of all versions. Must read changelog for a version you are going to install, it will...
forum.xda-developers.com
My guess is : This will get you out of that "Knox Lock", and still be able to use bank apps if you use them ...
These are XOM ( international firmwares ) you will be fine !
Click to expand...
Click to collapse
Can't root without unlocking OEM unlocked, can I? Can't even get into the settings to do that, it won't even let me past the lock screen, even after factory reset from recovery mode.
cpufrost said:
IMEI is clean, this looks KNOX locked to me.
Model Info: MOBILE SM-F926B/DS BLACK EUB
Search Term: 353249140740263
IMEI 1: 353249140740263
Serial Number: RFCR80A9CJY
Model Desc: Galaxy Z Fold3 5G
Model Name: SM-F926B/DS
Model Number: SM-F926BZKDEUB
Warranty Status: Warranty Active
Estimated Warranty End Date: 08-08-2023
Production location: Vietnam SEV
Production Date: 08-08-2021
Country: EUROPE
Carrier: Factory Unlocked
GSMA Blacklist Status: Clean
Click to expand...
Click to collapse
Do you think I could flash stock firmware?
I tried flashing stock firmware but I had no idea which country to get, I only had the model number?
I tried Malaysia and EUA, both gave me fails on Odin. Now I think it’s EUB, will try that later when I’m home.
Maybe I’m using Odin wrong, I initially only inserted the BL file into Odin, and then all of them (BL, AP, CP and CSC). I didn’t know which CSC file to use, there’s 2 (CSC and CSC HOME I think?)
Tried this with both Malaysia and EUA, but both gave me OdinFAIL!(Auth)
What am I doing wrong? Any help would be much appreciated!
underthewater said:
Can't root without unlocking OEM unlocked, can I? Can't even get into the settings to do that, it won't even let me past the lock screen, even after factory reset from recovery mode.
Click to expand...
Click to collapse
Yes you have to unlock the bootloader first ( OEM enabled ) to root it
I dont know about that knox lock , but try to flash stock
Go with the latest , start from there ( without root )
Download Galaxy Z Fold3 5G SM-F926B (EUY) F926BXXU1CVEB in Samfw - Samsung firmware download
Galaxy Z Fold3 5G SM-F926B (EUY - European Union) F926BXXU1CVEB S(Android 12) samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅
samfw.com
EDIT : USE CSC , not HOME CSC , to get a fresh install
pvillasuso said:
Yes you have to unlock the bootloader first ( OEM enabled ) to root it
I dont know about that knox lock , but try to flash stock
Go with the latest , start from there ( without root )
Download Galaxy Z Fold3 5G SM-F926B (EUY) F926BXXU1CVEB in Samfw - Samsung firmware download
Galaxy Z Fold3 5G SM-F926B (EUY - European Union) F926BXXU1CVEB S(Android 12) samsung firmware download all model, lastest, fast update, completely free and fast speed in Samfw.com ✅
samfw.com
EDIT : USE CSC , not HOME CSC , to get a fresh install
Click to expand...
Click to collapse
Does the stock firmware country matter?
underthewater said:
Does the stock firmware country matter?
Click to expand...
Click to collapse
AFAIK , No , because these are XOM international firmwares ,
My CSC is GTO , and I use EUY firmware ( because they update faster than other Regions )
cpufrost said:
IMEI is clean, this looks KNOX locked to me.
Model Info: MOBILE SM-F926B/DS BLACK EUB
Search Term: 353249140740263
IMEI 1: 353249140740263
Serial Number: RFCR80A9CJY
Model Desc: Galaxy Z Fold3 5G
Model Name: SM-F926B/DS
Model Number: SM-F926BZKDEUB
Warranty Status: Warranty Active
Estimated Warranty End Date: 08-08-2023
Production location: Vietnam SEV
Production Date: 08-08-2021
Country: EUROPE
Carrier: Factory Unlocked
GSMA Blacklist Status: Clean
Click to expand...
Click to collapse
Just because it's clear on Public Databases does not mean it's not clear internally. I used to work for a cellular company (IT in Corporate, not a retail store) and those public databases are NOT refreshed too often and I would not say it's 100% not blacklisted.
Talderon said:
Just because it's clear on Public Databases does not mean it's not clear internally. I used to work for a cellular company (IT in Corporate, not a retail store) and those public databases are NOT refreshed too often and I would not say it's 100% not blacklisted.
Click to expand...
Click to collapse
Good point, but the quickest way to get BL is scam a carrier, this looks like another victim of trade and switch fraud. If this keeps happening you can bet (Samsung) will no longer offer the trade discount up front requiring paying the FULL PRICE at time of purchase and then refunding the discount once trade ins are received and verified.
Honestly, at this point, you are just pretty much stuck with a WiFi Tablet. If you cannot get resolution with the seller (which may not be worth the time and effort), then you will just have to chalk it up to Lessons Learned and move on.
I HATE HATE HATE to hear about people getting scammed, but there really isn't much that can be done.

SM-R835F (Galaxy Active 2, 40mm LTE) change CSC to activate Samsung Pay

Hi, I've just moved to Australia and am trying to activate Samsung Pay on my Galaxy Active 2.
I believe that this can be done by changing my CSC to XSA (Australia), or anywhere with Samsung Pay (e.g. XAC/Canada, BTU/UK).
I'm not worried about losing LTE functionality (although obviously keeping it would be ideal).
My watch's information:
Model: SM-R835F (40mm LTE)
Current firmware: R835FXXU1EVH4 = R835F XXU 1EVH4
Current region: RNZ (New Zealand)
Spoiler: ODIN MODE
Code:
ODIN MODE
PRODUCT NAME: SM-R825FS
CURRENT BINARY: Samsung Official
REACTIVATION LOCK: OFF
Secure Download: Enabled
CARRIER ID:
WARRANTY VOID: 0 (0X0000)
RP SWREV: B:1 K:0 S:0
On EasyFirmware - SM-R835F there is R835FXXU1BTJ1 (OYV, Tizen 5.5.0.1) and R835FXXU1CUE3 (OXA, Tizen 5.5.0.2).
Will either of these trigger rollback protection on my watch please? Both are older versions than my current firmware, but they have the same/similar Tizen version.
Spoiler: Additional info
Software that I have:
Netodin3
R835FXXU1ATC3_R835FOXX1ATC3 - this appears to be Tizen 4.0.0.7.
I might be able to get R835FXXU1BTJ1 with CSC=OYV (Canada?) from: https://web.archive.org/web/2022120...stockfirmwaredownload.com/downloads/sm-r835f/
Tips I've read:
To enter recovery mode hold down the menu button, then press the menu button three times when it starts rebooting.
If using combination firmware, use AP box to select it.
Stock firmware for LTE has four files.
Useful/related forum posts:
R835U: https://forum.xda-developers.com/t/looking-for-r835f-r835u-ft55-firmware-to-change-csc.4241217/
Gear Sport: Change NZ to Aus: https://forum.xda-developers.com/t/...-sport-r600-to-make-samsung-pay-work.3771324/
R820 instructions: https://forum.xda-developers.com/t/can-i-change-csc-with-tizen-5-5-0-1.4169279/post-83884735
Can check if CSC is valid: https://doc.samsungmobile.com/SM-R835F/XAC/doc.html
Advice and/or comments are very appreciated
Thanks in advance!
I'm in the exact same situation. Did you finally do it? Thank you
Did you finally do it?
Click to expand...
Click to collapse
Hey Emorandum, unfortunately I haven't made any progress on this, let me know if you have any luck!

How to downgrade to OneUI 5.0?

Hi. Guys I have updated my S20 Ultra G-988B/DS to OneUI 5.1 and then lost Physical sim option for 2nd sim, before both sim slots were working fine. How to downgrade back to OneUI 5.0 regain my 2nd Physical sim option.?
Thanks a lot
@alich3451 iirc you might be able get the firmware and use Odin to flash it (I've done it before to a galaxy tab s2). What country are you in (to get the right firmware?)
I’ll make a video on how to do this in a sec…..
Here's the video (I made it right now - OneDrive link because XDA kept giving me upload errors):
https://1drv.ms/v/s!AkBuD6XsET8xgZVwRWKwdlDtVqJsIw?e=vegtvU
Links mentioned in video:
Samsung USB Driver (install before starting): https://developer.samsung.com/android-usb-driver
Odin: https://forum.xda-developers.com/t/patched-odin-3-13-1.3762572/
Firmware (says BTU but downloads as OXM international for all phones for some reason - use "direct download link"): https://galaxyfirmware.com/model/SM-G988B/BTU/G988BXXSFGVK1

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