deviceSerialNumber

[pt-at-tg]

Hi Christian, on the mqtt backend in the msg payload there is a key-val for deviceSerialNumber. Since getting the device's serial number is basically impossible after android 10, some Qs:

Is the val generated by the app?
How persistent is it?

Thanks,
Peter

[christianrowlands]

You are correct that getting the real device SN is practically impossible by an app. Therefore, I use the ANDROID_ID provided by the Android API to set the deviceSerialNumber. Back when I first wrote the app I was able to get the IMEI, but that has changed as you mentioned.

The documentation on the ANDROID_ID can be found here: https://developer.android.com/reference/android/provider/Settings.Secure#ANDROID_ID