no. I used one jumper to cover pins 9 and 10. This jumper :
and yes,I have attached also the power jack. One question here : do I need to use two jumpers to put the board in recovery mode ? The first jumper should be placed to cover the two pins that you see below ?
it seems to be needed to power on the board using the barrell jack. If those two pins aren’t covered,power does not come to the board. So,a jumper goes there and another jumper is used to cover pins 9 and 10 ? is that right ? because at the moment I’m covering only pins 9 and 10,not the two pins that you see on the picture and I see that the board is powered only by the usb cable,but probably the amount of power it gets is not enough. Actually I have only one jumper available. I need to buy more.