Hi Jürgen (and Dave),
I’ll take a note of the PIN code issue – that’s strange, hadn’t heard of it before :)
Regarding the meter view coming up and then dropping back to scan view… that is quite strange! The app does not crash though so a debug report is not sent for me to analyze. This may be the only time I’ve wished the app crashed.
I can only offer the standard suggestions – let me know if you’ve tried them all:
1. Rebooting the phone
2. Rebooting the meter (need to unscrew the case to touch the reset button)
3. Reinstalling the app, and trying the alpha version if you haven’t already (at moosh.im/s/app-latest.apk )
Let me know if one of those works for you