I have the same problem lost boot for android on a recently bought teclast tbook pro 12 after booting from usb this: http://sergeistrelec.ru/winpe_10/64-winpe-10-sergei-strelec-x86-x64-20161006-english-version.html
I wonder if you found a way to fix android.
In my case i have not found the original firmware for my tablet. So now i am left only with windows but i really like android too.
Any help will be appreciated.
Thank you
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