S10+ Stuck in bootloop and Bootloader locked KG state Prenormal - Samsung Galaxy S10+ Questions & Answers

Hi,
I flashed a custom ROM using TWRP but stuck in bootloop, when I restore EFS backup phone boot normally. after that flashed stock rom but problem comes again and KG state became Prenormal and bootloader locked (not remember if locked by itself or by me)
wipe data factory reset did not fix it and think it not working as log says (/efs/MDM/FactoryReset does not exist)
when trying to flash combination files I got this message (Please get approval to use factory binaries)
How to unlock bootloader to flash TWRP and restore EFS backup or any idea to fix bootloop?
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[HELP] Problem with custom Recoveries PLEASE HELP

Hi xda
i have a Galaxy S5 G900f Knox 0x1
my problem is with custom recovery whenever i try to flash custom ROM's i get stuck at the boot screen and the phone never boots
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i tried cwm recovery and twrp both gave me the same problem
however when going through the flashing process in both recoveries neither one of them gave me any errors the flashing goes smoothly till i restart the device then i get stuck
i noticed something after flashing customs and get stuck i can reboot to recovery and when i go to mount and storage
system, data and cache all are unmounted i try to mount them but when i restart the device they get unmounted!!
- could this be the problem?
- any solutions?
HELP PLEASE

Encryption Unsuccessful

Hi all,
Axon 7 G
i just tried flash via TWRP Nuclear rom(from RR), I made standart things in/fullwipe/ and after the boot see this screen:
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After reboot TWRP made some wipe(cache maybe...it´s fast) and again this....
What can I do now?
I tried flash old RR rom, factory reset...wipe
Have some backup but it is stock B08(Android 6, and little bit strange is, that backup has only "boot, system, data" = mean it is not full backup?/I dont know)so I´m affraid about loader etc...
edit: Tried flash "STOCK B09" Draken from this trhread: https://forum.xda-developers.com/showpost.php?p=68873485&postcount=3, after instal/before reboot TWRP says "system is not instaled".....so really don´t know what now...fck.
edit2: made 3x factory reset again...and solved now!!!! Stupid joke from our green droid....:-/
solved now!

SM-G9287C DRK fix

My phone was stolen and got it back by buying it from a stranger who bought it from the thief. I don't mind spending a little because i thought i could fix it. They tried to unlock my phone but since they can't unlock they sold it back to me. And they managed to brick my phone. I don't knpw what they did but i can't flash stock firmware. Now i mananged to flash stock firmware but the problem is I can't fix drk because i can't install twrp because my phone is blocked by frp. I don't want to bypass frp because i have my account for google. I just need to fix drk so i can flash stock firmware. Is there a way for me to fix drk? Please help me.
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https://scontent.fcgy1-1.fna.fbcdn....=8d6ec19a97301faa15634f440b14f78a&oe=5B7A5142

Black Shark 2 (SKW-H0) hard brick

Hello people. When I rooted the phone I installed twrp I don't know how but I removed the mobile operating system (I'm stupid and didn't backup the system before starting). The mobile only constantly reboots in an infinite loop. I managed to get into fastboot mode. Would it be possible to install a ROM from fastboot mode ?.
Thanks for the help.
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The ROM original was S00MP5 (global)
This is my first post, I hope I wrote it well. sorry for my bad English
in fastboot mode I install twrp by cmd and restart the phone in twrp menu. in twrp is there any rom to install? or some way to recover the mobile?

help please. 910V bricked by over writing boot; odin/adb do not recognize phone

i screwed up..i had my bootloader unlocked and was running stock but.......i wanted to update to a newer twrp https://dl.twrp.me/trlte/twrp-3.5.2_9-0-trlte.img.html
SO now i just get rebooting on my samsung 910v...what can i do? can i reinstall my old twrp 3.0? do i need to wipe some cache..i really don't want to lose my settings....
help
ps..my phone was rooted
update...
stuck in downloading mode; recovery won't boot. Cannot talk to my pc via odin or adb. Odin/ADB do not see my device. overwrote the boot. help.
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