I soldered direct to the pi, didn't see any point in adding headers.
Of course, stupid me. But that means that's not the problem here. Did you solder pin 6 and 19?
The link seems to be to the non WiFi version? How are you going to communicate with it?
Sorry, wrong link. Stupid me (second time...... I turned 50 yesterday, I didn't know this aging process would go that fast!). This is the correct link https://www.kiwi-electronics.n…w?search=pi%20zero%20wifi
Did you do the same I did (see post #117)?
Wim