Comment by modeless

Just got a new phone and migrating Signal was a total disaster. The first thing I did was login to the new phone which is apparently the wrong thing to do because you lose all your old messages and there's no option to import after you login. You have to logout but there is no logout. Gotta uninstall and reinstall, or clear app data. Next I tried the account migration feature which requires using both phones simultaneously, hope you didn't erase your old phone yet. But it doesn't work anyway, it's just broken. So after failing at that several times, then I had to manually make a backup on the old phone, write down a 20 digit numeric code that's only displayed once on screen, transfer the backup file manually, type the code on the new phone, and then it logged me in but silently failed to import the backup. Had to uninstall again and did the exact same steps again and then it finally worked. What a travesty. Security shouldn't come with this kind of UX disaster.