How I replace android to C.O.S. (China Operating System)?

[AC Question]

I hate android, ios with inhuman passion. Boyfriend not know this and buy me $900 tablet android. How I uninstall and install C.O.S. Because if I not able trash android, then I force throw away tablet? So how or where I get C.O.S? Or least chinese system because I not trust or like ios or android?

 

[belodion]

You would have to download the OS to a PC and flash it to your tablet. If you find that it cannot be done, give the phone to charity rather than throw it away.