S7 Edge - Downgrading the Firmware - Samsung Galaxy S7 Edge Questions and Answers

Hi, I have Samsung galaxy s7 Edge - G935f, Android 8.0.0.
I'm trying to downgrade Firmware from security patch 1.7.2019 to 1.7.2018.
Every time I try Odin, set all files (AP,BL,CP,CSC - Home_CSC and CSC) I got new Fail error.
The last is : cm.bin Fail.
Can someone help with it?

did you get this to work?

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June FW ODIN for AT&T S7

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Using the Edge variant if that's needed to be known.
Anyone have the firmware files?
I need the FW too!! i cannot update my 930A
http://bit.ly/23SJFRh

A5 2016 change firmware - SOLVED

Hi,
I need your help. I have galaxy a5 2016 with firmware original samsung. But Id like to use TMOBILE firmware for support VOLTE in Czech Republic. When I try put throw ODIn si it write me FAIL ... device 4 binary 3 ,, this is some problem with lock bootloader ? How can I repair it or do it for change firmware ?
Thank you very much for help
Lukas
Continue : I tryed download new firmware 7.0 tmobile version and I tryed send throw ODIn to phone . But after modem.bin is FAIL
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Remove root and twrp from Oreo

Hi to all
Please how to remove root and twrp from Oreo? How is the best and easy way to do it?
If I need to do it with Odin, please help me to faind Oreo version for my phone.
S8 Dual Sim, SM-G950FD
Exynos,
UAE Version,
Please help me!
I faind Oreo with same PDA and CSC number like my, but just region is difrent (vietnam and france). Can I install it? What is difrent?
The download is going very very slow
Looking the XDA thread - How to Install Android Oreo on the Samsung Galaxy S8/S8+ (Exynos), can I use one of these AQL5 Odin and AQL5 to CRAP to install trought Odin to my S8?
Which one I need to install:
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or I need something CRAP to CRAP?
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How to fix ODIN stuck on flashing stock firmwares on latest Oreo firmware

For those of you having trouble flashing latest stock OREO firmwares on newer Samsung Galaxy smartphoneslike Galaxy S7, S7 Edge, S8, S8 plus, Note 8, S9, and S9 Plus and getting stuck at “sboot.bin.lz4”, this is most likely caused by using ODIN version older than v3.13.1. Samsung is using new lz4 compression on firmwares which means older ODIN are not able to decompress the files before flashing to your phone.
How to fix this error?
Simply use the latest ODIN v3.13.1 or HIGHER, you can download v3.13.1 below:
Download ODIN v3.13.1
All thanks to MAX LEE.
Thanks
Worked perfectly with the new Odin , thank you
Works, thanks

Samsung S7 Edge SM-G935A to SM-G935U

I have successfully found the firmware and update it to the newest version.
Any idea where I can download this firmware. This firmware has version number PDA G935UUESACSI1 and CSC G935UOYMACSI.
Tried on other website but ends up always in error.
I wanted to make sure I can create a back up before I can root it.

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