Sorry about the confusion. The QR code is here:
(in the OSBee-WiFi-App github repo).
The non-latching jumper is marked by a silkscreen that says Non-Latch Jumper and it should be relatively easy to find. Also, for people who want to operate non-latching valves, we recommend OS 3.0 and do not recommend OSBee any more, since both use the same ESP8266 WiFi chip but OS3.0 has many more features.