rom flashing - Bricked Note GT-8013, unable to boot from TWRP recovery (flashes logo for 1-2 secs), nor on normal mode, installed TWRP via both IMG and TAR

I'm running a Samsung Note GT-N8013. One day, my tablet fails to boot, saying that encryption had been unsuccessful; according to this answer, /data has failed to format. I can't reset the device, pressing the reset button on the screen does nothing. I also can't boot into TWRP recovery mode, it just flashes the logo screen for 1-2 seconds and switches back to the Samsung Note logo screen. I've tried to reinstall TWRP into the recovery partition using both twrp-2.8.7.0-gt-n8013.img and twrp-2.8.6.0-gt-n8013.tar with Heimdall.