[aibara]

Hmm, that's odd. I very recently had to cycle through using four different phones (one was dying, two ended up being defective, finally got a decent one), and each time I successfully transferred all my messages to the next. I thought that just transferred your messages though, not your keys (I could be wrong there).

But it is a bit silly that you need to manually move the file from the old phone/backup location to the new one without some in-app option to do so.

[metildaa]

This was circa 1 month ago that I had this issue, and it was fixed in the beta build of Signal Android after a few days. Moving to the beta channel doesn't really help if the old device is not avaliable anymore, as the backup is still not usable.