Tried that, but when I was at the process of soldering the cables to the debug ports, the "solder spots" came out of the board :( Now I need to press hard with

Tried that, but when I was at the process of soldering the cables to the debug ports, the "solder spots" came out of the board :( Now I need to press hard with a needles to make the serial port work - so it is quite hard to setup - at least until I install sshd there and setup wifi to make it work wirelessly.