Soft-Bricked and can't access recovery nor bootloader

[AC Question]

I had my Oneplus One running Lineage OS and TWRP Recovery. I tried installing Oxygen OS and the device seemed to work but then the screen became all black.
I restarted the device and its been stuck in Bootloop for over an hour.
I've tried rebooting it in recovery mode and fastboot but all that does is restarts the device.
I've also tried using adb but it doesnt recognize the device, I think I have all the drivers installed. When I plug the device to the PC it sounds as when you connect something, but its recognized as Android Device. There is nothing on Computer, no storage no nothing.
The device isn't rooted, but the bootloader was unlocked, as I had to flash TWRP to install Lineage OS.

I need some hElp plz

 

[Golfdriver97]

Welcome to the forums. When you try to enter fastboot is restarts?

 

[pablo poropat]

No, trying to restart it to Recovery makes it restart. It does enters into Fastboot Mode, but adb devices doesn't find it.

 

[Golfdriver97]

ADB commands don't work in fastboot. You may need to reflash a stock ROM through fastboot to get everything up and​ running again.