Found an older thread where a previous Bond staff member was trying to help folks go from v1 to v2.
The solution there was using app version 2.14.1.
I think the lowest APK installer for Android I’ve found still available so far is 2.15.1.
Do you know what “older Bond Home app” version was installed on your friend’s Android device?
If you ever get to that point, I will personally pay for you to ship that device to me (and a little extra thrown in for your time) to see if any combination of things I can try yield success. Hopefully some success will manifest soon, though – I admire your tenacity!