No message, if the device does not support ble transmission.

[lufebe16]

I installed the app on a Samsung SM-T700 tablet, running Android 7.1. (api 25).

The app seems to run without any problems. But the device mentioned is not capable to transmit ble tokens due to missing hard- or firmware. This can easily be verified using an app like 'nRF connect' (on a second device).

Please add a message to clear that situation to the user. There are many moslty older devices out in the field that may have the same problem.

[lufebe16]

Addendum:
Here is a list of Android devices that shows whether they are capable of LE advertising or not.

(https://altbeacon.github.io/android-beacon-library/beacon-transmitter-devices.htmll)

[rachyandco]

Device Support For Beacon Transmission with Android 5+

(Correct link)

[fbzli]

Thanks for the report, we're looking for a possible solution to handle those devices.

[rachyandco]

The different mobile operators have the details of which phones are active on their network. @buenzli-ubique I suggest that this data is shared here to assess the potential impact of such fix. Is it 10%, 20% 50% of active android phones? Google should be even aware of which incompatible phones are actually running the swisscovid app so they can provide real data.