Many thanks. I nearly did the same thing as you.
To those wants to do this job using regular soldering iron - don't do this. I though a good soldering iron could do the job, but in reality thermofan needed.
How I did it.
This is what I had after I soldered pins
This is unsuccessful attempt to short R24
So I took a syringe with a sharp needle and a piece of arduino wire. Needle through the piece of wire. Syringe into needle and set sharp needle onto the right whole of R24. Syringe works as a weight and needle as a piece of wire connected to the road.
Sorry quality not the best but you should get the idea
