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Hello, all. I am in need of a stock or custom ROM / firmware for my Zeki 10.1" Quad-Core Tablet. 

Tablet Model # - TBQG1084NB
Board Model # - EM_T8511A_KEY_V3.0
Chip Model # - MEDIATEK MT8163V

Brand: Zeki
Screen Size: 10.1"
Operating System: Android 4.2.X Jelly Bean
Storage: 8GB
Cores: 4
RAM: 1GB

I have scoured the web in search of this firmware but came up empty. Please, if anybody has this firmware or knows where to find it, please let me know. I can flash it with SP Flash Tool. Thank you!

Can anyone tell me which chip is the actual processor? Because I have absolutely no idea. Here's a better shot of the chip in the lower left-hand side of this picture: