Yes, I understand that now, thanks to you. I can assure you both OTG cables that I used were in excellent condition and reliable.
Note I don't know how to make my video available on YouTube although I managed to upload it. If you give me an email address, I can simply add it to the video, allowing you to view it. I'm not a fervent user of YouTube and don't know too much about it. How can I authorize you to view it?
I'd be very happy to find someone around that could help me with the Vi8 tablet. It's a pity that I can't use it.
On another note, does the serial number of the tablet give you any kind of indication as to how to proceed to flash a tablet? Being a dual-boot tablet, shouldn't that allow me to try with Android? I'm simply wondering if the UEFI is strictly for Windows or is it also used for Android? Just a thought.
In any case, my friend, you've been very helpful and I certainly appreciate all the help you've given me, despite the negative results. Not being very 'tecky' as they say, you boosted my morale, hihi ! Many a time, I thouht 'this is it, it's going to work this time'. Thank you very much, Motobot. and have yourself a great day.