No, that doesnt mean it. When you actually try to unlock, only then you will know.
Try with other PC (friends, moms, dad, sister...) and take usb cables with you, just in case.
Same here. 86006.Ohh. I wasn't able to find apk in first post. Thanks. I have note 5 pro. I am trying with this apk now. Will update shortly
Update:no success. Same issue. Did you manage to solve your issue with note 5? I usually get over this error by flashing developer rom.... But I don't find any developer rom for note 5 pro on miui forums