I received my meter last week an today I installed the App (Google Play Store Version 28.02.2018) on my Samsung Galaxy S7. The very first connection was successful. A second connection seems to be very random. So far I couldnt’t find reproducible patterns.
When closing app completely (via task manager) an switching off meter and the start meter an app, reconnecting was successful.
When closing app completely (via task manager) an switching off meter AND SWITCHING OF BLUETOOTH and the start meter an app (app asks to switch on BT), reconnecting was NOT successful.
A way I found to reconnect, was then to use the “unbond” function by pressing the power button for 10 seconds.
Any idea what causes this problems with Galaxy S7s? Is this problem also seen on other devices?