Tried to root.. nothing worked but now having issues.

I was trying to root my device through Odin.. i found a couple different things though this forum to flash through TWRP but none worked, it seems I have the wrong device and noone has made one compatible with it. Anyway, my system status is changed from Original to Custom and my build number has changed. I am trying to change it back to the stock recovery... and back to normal. I cant find any downloads for this. Could someone please direct me. My normal build number, version, and other info that I need a stock for:

Build number: kot49h.t310ueucnk1

Version: 4.4.2

SM-T310

Samsung Galaxy Tab 3 8.0



I'd really appreciate it if someone did this for me, because multiple apps seem to not work...

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