[solved] Black screen + Samsung logo + blue light blinking during boot - Samsung Galaxy S8 Questions and Answers

Hi all, I need help with my (new) phone.
I installed TWRP + new rom (Pie). Everyting was working fine.
Then I downloaded SuperSu, flashed it in TWRP and rebooted.
The phone now shows Samsung logo during boot and the blue led is blinking endlessly.
I tried to reach TWRP via Vol down + Bixby key + Power key. Phone will restart but instead TWRP it gives me a big vibration and continues to Samsung logo + blue light.
I can reach download mode.
How should I proceed?
SOLVED:
Odin -> TWRP and then reflashing the rom did the trick !!

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[SOLVED] TWRP not working

Hi!
As the title says, TWRP is not working, when I flash it, fastboot says it's successful, so I turn off phone (hold power button), then I try to boot straight to recovery (hold volume up, volume down and power at the same time), phone vibrates, I let go of power but screen is pitch black, so I try again (I again flash TWRP), this time I hold power until Lenovo logo shows up, but It doesn't, screen is pitch black, so I boot system and turn off the phone, boot to recovery and stock shows up, so I know I can boot to recovery. Bootloader is unlocked and I have already flashed TWRP on this phone, I just returned to stock ROM so I lost it.
TWRP: https://forum.xda-developers.com/k4-note/development/recovery-twrp-3-0-2-0-touch-recovery-t3530374
I try to use TWRP 3.1.1, used that one before and it worked.
Edit:
I did the same thing and it decided to work, phone just went all r****d on me yesterday.

Galaxy s4 (GT-I9505) gets stuck while trying to boot into recovery mode after flashing TWRP

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