I also did further investigations:
According to the following data sheet there are the following firmware versions on the stick:
| Version__ | Name on Sticker___________ | Firmware | SDK | API | SmartStart | RPi4 compatible____________________ |
|---|---|---|---|---|---|---|
| Version 1 | Z-Stick Gen5 | 1.00 | v6.51.02 | 3.95 | no | Not without unpowered USB Adapter |
| Version 2 | Z-Stick Gen5 | 1.01 | v6.51.10 | 4.54 | no | Not without unpowered USB Adapter |
| Version 3 | New Z-Stick Gen5 | 1.01 | v6.51.10 | 4.54 | no | Yes, works without USB adapter |
| Version 4 | Z-Stick Gen5+ | 1.02 | v6.81.06 | 6.07.00 | yes | Yes, works without USB adapter |
.
IMAGES:
ZW090-A (US Frequency)
Version 1:
Version 2:
Version 3:
Version 4:
.
.
ZW090-B (AU Frequency)
Version 1:
Version 2:
no image found
Version 3:
no image found
Version 4:
.
.
ZW090-C (EU Frequency)
Version 1:
Version 2:
Version 3:
Version 4:
.
.
unknown:
.
.
The firmware update mentioned above is intended for sticks with firmware 1.00 .
Mine is a “Z-Stick Gen5” (Version 3) with firmware 1.01 , like in this picture:
