not a normal bricked device

[Android Central Question]

I was going to install a custom ROM but when i went to enter recovery mode twrp doesn't load up and stays on a boot screen it used to work before. So i went into the twrp app and flashed the recovery again and tried to get into recovery mode. That didn't work. Then i went into download mode from the boot screen to restart my tablet but when i press restart that too stays on a boot screen.
here are some details about my tablet

moldel name is SM-T815Y country Australia carrier telstra

 

[Rukbat]

Download the ROM from https://www.sammobile.com/firmwares/galaxy-tab-s2/SM-T815Y/TEL/download/T815YDVU2CQD9/177207/

Then follow the directions at [Samsung] How to flash Stock ROM via ODIN to flash it. Then, if you want, you can reinstall TWRP.

(The custom ROM probably messed something up.)