An error has occurred while updating the device software fix! - Samsung Galaxy S7 Edge Questions and Answers

So i installed LineageOS 16.0 android 9.0 and i wanted to go back to android 8.0 and somehow i got that error. F*cked up somewhere in odin 100%. I was using lastest version of odin, so odin v3.13.1. So i tried to flash stock firmware many times, tried to flash TWRP but nothing worked. Then i started trying out older odin versions and i finally flashed the TWRP with odin v3.12.3! Now the phone works Hope this helped someone
BTW has someone a link to a not buggy version of The Galaxy Project rom? 2.2.1 maybe or something like that?

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Unable to root.

So basically my phone does not work with odin anymore. I had my phone rooted both on KitKat and on the first build lollipop for the 910f. But it all changed when I upgraded to the newest build BOC3. I used CF-Auto Root. It gave me a fail with error "(Complete) Write operation failed.".
So I though it must not work with the latest lollipop, I flashed back the older version and tried it again which came to the same result. I tried older version of the file and also tried flashing TWRP and CWM recovery all failing with the same error. I tried changing cables and USB ports, no difference. Any help would be appreciated.
Edit: After hours of searching it turns out the problem was that I had the reactivation lock on which prevented me from flashing anything but official samsung firmware. God damn so much trouble from such a small setting.

Bootloop even after flashing Stock in ODIN

Hello,
I had not updated the ROM on my phone in quite some time so I recently decided to update everything. I flashed an updated modem thru ODIN and then updated to some Android 5.0.1 and 5.1 roms.
I ended up having some odd reboot issues so I decided I would flash completely stock rom and go from there. I downloaded the most recent stock rom for my phone from SamMobile and flashed it thru ODIN. ODIN says passed and everything looks to have worked.
The problem is my phone will start and boot up to the point where I set up Android (choosing language etc) and then the phone reboots. This happens everytime.
Any advice or suggestions? I thought flashing stock would fix my issue!
UPDATE:
I flashed Stock thru ODIN again and it seems to be working now. I will update the post again if anything changes!

Phone not working after update.

Hey Guys,
I have a Samsung Galaxy Grand Prime SM-G530H, the updater asked me to update the Android into Lollipop from its original firmware Kitkat 4.4.4. After finished installing, it started bootloop, it wouldn't boot to the Android. I tried to search from many sources, to fix my phone, and I found some thread that I must to reflash the firmware because they said it's corrupted. After that, I downloaded Odin, the firmware (Android Lollipop) and flash it. It still can't boot to the Android. I tried to flash to Kitkat and it seems that the Odin was failed to flash the firmware. I can't find the CSC and PDA code from the phone because I can't boot into Android. I also tried Kies and SmartSwitch to initialize my phone, but it didn't work.
What should I do now???

Can't boot no matter what Stock Rom I flash

I've been using my S8 G950F for one week (Nougat Stock, don't recall which specific rom, no root nor nothing) until it suddenly froze, tried to reboot but couldn't get past the Samsung logo screen. I tried to flash a stock firmware using Odin but got a Fail with the Device Info error which I could successfully fix with the so well known trick of getting back to download mode real quick.
Now I can flash any rom I want (downloaded from Updato) without any issues (PASS on odin), but no matter what ROM I flash I still can't get past the Samsung logo. I tried flashing both Nougat (AQF7 and AQL5), Oreo (CRAP, CRC7 and CRD7) using Oding 3.12.3 and 3.13.1 (for Oreo roms).
I also tried using Prince Comsy's Odin and once again got the Device Info error but using the same trick as before I could flash a Nougat rom but still can't get past the Samsung logo.
Is there anything I'm doing wrong? Should I flash any particular ROM or in a specific order? Should I try with other Odin version? KIES doesn't detect my device.
Any help is greatly appreciated! I just don't know what else to try and I can't find nobody nobody that has had the same issue I'm facing.
Thanks in advance! Any additional info you may need just ask me!
PS: one thing that caught my attention is that when I go to download mode it says: Knox 0x0 and "System Status: Custom". Is that alright?

Galaxy A3 2016 (sm-a310f) downgrade fail with twrp.

I want to downgrade my phone from android 7.0 to 6.01. The performance of the new OS is so bad that the phone is almost unusable!
Odin will not let me downgrade because the bootloader/modem etc is an older version.
I installed TWRP with the instructions from this thread https://forum.xda-developers.com/samsung-a-series/general/twrp-3-0-0-galaxy-a3-2016-sm-a310-t3316176
However when I try to install the 6.0.1 rom I downloaded from sammobile I get an "no md5 file found" error from twrp.
I thought that twrp is so versatile that it allows any rom to be installed.
Any ideas? Am I doing something wrong?
If you downloaded a ROM from sammobile or samfirmware they can only be flashed via Odin.

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