I did had that problem last week but i can recover from it ;)
By the way that video show a unnecessary step that is remove the grey thing around the phone. You can remove the connector from the battery without that step ;)
Ok i think i will forget this. I have tried again all morning with the same result. Do you any any store that can do it for me? Even in Spain i don´t care. I've already ask for a quotation from Tabstore but i'm seaching for more