So everyone needs to varnish these contacts? Just in case.
It is SWD debug port, if you are developer building your own native binaries it is handy, if you just write in JS or just use apps you don't need it.
@fanoush started
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
So everyone needs to varnish these contacts? Just in case.