I ordered bv9100 and im so intrigued about this otg reverse charge feature. I have seen plenty of unboxing videos about my soon to be delivered phone but I have not had the chance to see any otg “cable”. All i see is what it seems like a converter or an adapter and not a cable as it was described on the specifications on blackview.hk webpage. I would love to receive more info about it so I know if there is some other stuff I need to buy in order to use this feature. If so, a link will be gladly appreciated.