[palbeda]

OK, Some more instructions as I tried it again (with succes!!) and made some pictures.

What I did is before connecting the wire, put some solder there so the wire is pre-tinned.
Then, apply a very small bit of conductive glue on the bottom part of one end of the wire using a match. I decided NOT to dip the wire end in the glue, as I feared the glue would run between the two contacts (RX and TX) if too much glue is applied.

Then I carefully put one wire before the other in place and then mechanically fix the wire by wire with a drop of hot plastic glue. The conductive glue is mechanically not very strong, but once the wire is fixed with plastic glue, the small bit of glue makes a perfect connection, without applying any heat or mechanical stress to the extreemly small and fragile RX and TX contacts.

Maybe this sounds complicated, in fact it is not only easy and fool proof, it is a lot safer as soldering as the contacts on the printed circuit board are VERY thin and easily let go if you apply a small bit of strain to the soldered wire or if you use a bit too much heat.

The result is a very good connection which is hard to tell apart from one that is soldered with hardly any risk.

Oversize image changed to attachment. - mod