Thank you very much for putting me on the right track.

I'll definetly get more information but, to be on the safe side, would you assess a step-by-step protocol of what I would implement?

As it is a dangerous manipulation, I know it's best not to be public, so could I send it by MP?

Soldering wires have the inconvenience of not letting me close de n800. I might have someone fix the usb port (solder it back in place) but not in the near future...

I have already understood enough to see that the name of my thread is illogic

Once again, thank you!