Responding to the COVID-19 outbreak in Europe, massive mobility restrictions were imposed in the Schengen area. While the internal Schengen border controls have mostly been lifted, the uncoordinated national reopening of its external borders have led to a patchwork of border regulations. An original analysis of the unilateral steps taken by Schengen states to reopen borders to third countries is presented here. In order to avoid any serious damage to the functioning of the EU borderless area, members need to stick to common rules and act in together, rather than in a single-handed fashion.